Beta 1 Release 1.0

closes #1322

.gitattributes

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+CHANGELOG.md merge=union
+README.md merge=union
+plugins/inputs/all/all.go merge=union
+plugins/outputs/all/all.go merge=union

.github/ISSUE_TEMPLATE.md

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+## Directions
+
+GitHub Issues are reserved for actionable bug reports and feature requests.
+General questions should be sent to the [InfluxDB mailing list](https://groups.google.com/forum/#!forum/influxdb).
+
+Before opening an issue, search for similar bug reports or feature requests on GitHub Issues.
+If no similar issue can be found, fill out either the "Bug Report" or the "Feature Request" section below.
+Erase the other section and everything on and above this line.
+
+*Please note, the quickest way to fix a bug is to open a Pull Request.*
+
+## Bug report
+
+### System info:
+
+[Include Telegraf version, operating system name, and other relevant details]
+
+### Steps to reproduce:
+
+1. ...
+2. ...
+
+### Expected behavior:
+
+### Actual behavior:
+
+### Additional info:
+
+[Include gist of relevant config, logs, etc.]
+
+
+## Feature Request
+
+Opening a feature request kicks off a discussion.
+
+### Proposal:
+
+### Current behavior:
+
+### Desired behavior:
+
+### Use case: [Why is this important (helps with prioritizing requests)]

.github/PULL_REQUEST_TEMPLATE.md

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+### Required for all PRs:
+
+- [ ] CHANGELOG.md updated
+- [ ] Sign [CLA](https://influxdata.com/community/cla/) (if not already signed)
+- [ ] README.md updated (if adding a new plugin)

.gitignore

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 tivan
 .vagrant
-telegraf
+/telegraf
 .idea
+*~
+*#

CHANGELOG.md

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+## v1.0 beta 1 [2016-06-07]
+
+### Release Notes
+
+- `flush_jitter` behavior has been changed. The random jitter will now be
+evaluated at every flush interval, rather than once at startup. This makes it
+consistent with the behavior of `collection_jitter`.
+
+- All AWS plugins now utilize a standard mechanism for evaluating credentials.
+This allows all AWS plugins to support environment variables, shared credential
+files & profiles, and role assumptions. See the specific plugin README for
+details.
+
+- The AWS CloudWatch input plugin can now declare a wildcard value for a metric
+dimension. This causes the plugin to read all metrics that contain the specified
+dimension key regardless of value. This is used to export collections of metrics
+without having to know the dimension values ahead of time.
+
+- The AWS CloudWatch input plugin can now be configured with the `cache_ttl`
+attribute. This configures the TTL of the internal metric cache. This is useful
+in conjunction with wildcard dimension values as it will control the amount of
+time before a new metric is included by the plugin.
+
+### Features
+- [#1262](https://github.com/influxdata/telegraf/pull/1261): Add graylog input pluging.
+- [#1294](https://github.com/influxdata/telegraf/pull/1294): consul input plugin. Thanks @harnash
+- [#1164](https://github.com/influxdata/telegraf/pull/1164): conntrack input plugin. Thanks @robinpercy!
+- [#1165](https://github.com/influxdata/telegraf/pull/1165): vmstat input plugin. Thanks @jshim-xm!
+- [#1247](https://github.com/influxdata/telegraf/pull/1247): rollbar input plugin. Thanks @francois2metz and @cduez!
+- [#1208](https://github.com/influxdata/telegraf/pull/1208): Standardized AWS credentials evaluation & wildcard CloudWatch dimensions. Thanks @johnrengelman!
+- [#1264](https://github.com/influxdata/telegraf/pull/1264): Add SSL config options to http_response plugin.
+- [#1272](https://github.com/influxdata/telegraf/pull/1272): graphite parser: add ability to specify multiple tag keys, for consistency with influxdb parser.
+- [#1265](https://github.com/influxdata/telegraf/pull/1265): Make dns lookups for chrony configurable. Thanks @zbindenren!
+- [#1275](https://github.com/influxdata/telegraf/pull/1275): Allow wildcard filtering of varnish stats.
+- [#1142](https://github.com/influxdata/telegraf/pull/1142): Support for glob patterns in exec plugin commands configuration.
+- [#1278](https://github.com/influxdata/telegraf/pull/1278): RabbitMQ input: made url parameter optional by using DefaultURL (http://localhost:15672) if not specified
+- [#1197](https://github.com/influxdata/telegraf/pull/1197): Limit AWS GetMetricStatistics requests to 10 per second.
+- [#1278](https://github.com/influxdata/telegraf/pull/1278) & [#1288](https://github.com/influxdata/telegraf/pull/1288) & [#1295](https://github.com/influxdata/telegraf/pull/1295): RabbitMQ/Apache/InfluxDB inputs: made url(s) parameter optional by using reasonable input defaults if not specified
+- [#1296](https://github.com/influxdata/telegraf/issues/1296): Refactor of flush_jitter argument.
+- [#1213](https://github.com/influxdata/telegraf/issues/1213): Add inactive & active memory to mem plugin.
+
+### Bugfixes
+
+- [#1252](https://github.com/influxdata/telegraf/pull/1252) & [#1279](https://github.com/influxdata/telegraf/pull/1279): Fix systemd service. Thanks @zbindenren & @PierreF!
+- [#1221](https://github.com/influxdata/telegraf/pull/1221): Fix influxdb n_shards counter.
+- [#1258](https://github.com/influxdata/telegraf/pull/1258): Fix potential kernel plugin integer parse error.
+- [#1268](https://github.com/influxdata/telegraf/pull/1268): Fix potential influxdb input type assertion panic.
+- [#1283](https://github.com/influxdata/telegraf/pull/1283): Still send processes metrics if a process exited during metric collection.
+- [#1297](https://github.com/influxdata/telegraf/issues/1297): disk plugin panic when usage grab fails.
+- [#1316](https://github.com/influxdata/telegraf/pull/1316): Removed leaked "database" tag on redis metrics. Thanks @PierreF!
+- [#1323](https://github.com/influxdata/telegraf/issues/1323): Processes plugin: fix potential error with /proc/net/stat directory.
+- [#1322](https://github.com/influxdata/telegraf/issues/1322): Fix rare RHEL 5.2 panic in gopsutil diskio gathering function.
+
+## v0.13.1 [2016-05-24]
+
+### Release Notes
+
+- net_response and http_response plugins timeouts will now accept duration
+strings, ie, "2s" or "500ms".
+- Input plugin Gathers will no longer be logged by default, but a Gather for
+_each_ plugin will be logged in Debug mode.
+- Debug mode will no longer print every point added to the accumulator. This
+functionality can be duplicated using the `file` output plugin and printing
+to "stdout".
+
+### Features
+
+- [#1173](https://github.com/influxdata/telegraf/pull/1173): varnish input plugin. Thanks @sfox-xmatters!
+- [#1138](https://github.com/influxdata/telegraf/pull/1138): nstat input plugin. Thanks @Maksadbek!
+- [#1139](https://github.com/influxdata/telegraf/pull/1139): instrumental output plugin. Thanks @jasonroelofs!
+- [#1172](https://github.com/influxdata/telegraf/pull/1172): Ceph storage stats. Thanks @robinpercy!
+- [#1233](https://github.com/influxdata/telegraf/pull/1233): Updated golint gopsutil dependency.
+- [#1238](https://github.com/influxdata/telegraf/pull/1238): chrony input plugin. Thanks @zbindenren!
+- [#479](https://github.com/influxdata/telegraf/issues/479): per-plugin execution time added to debug output.
+- [#1249](https://github.com/influxdata/telegraf/issues/1249): influxdb output: added write_consistency argument.
+
+### Bugfixes
+
+- [#1195](https://github.com/influxdata/telegraf/pull/1195): Docker panic on timeout. Thanks @zstyblik!
+- [#1211](https://github.com/influxdata/telegraf/pull/1211): mongodb input. Fix possible panic. Thanks @kols!
+- [#1215](https://github.com/influxdata/telegraf/pull/1215): Fix for possible gopsutil-dependent plugin hangs.
+- [#1228](https://github.com/influxdata/telegraf/pull/1228): Fix service plugin host tag overwrite.
+- [#1198](https://github.com/influxdata/telegraf/pull/1198): http_response: override request Host header properly
+- [#1230](https://github.com/influxdata/telegraf/issues/1230): Fix Telegraf process hangup due to a single plugin hanging.
+- [#1214](https://github.com/influxdata/telegraf/issues/1214): Use TCP timeout argument in net_response plugin.
+- [#1243](https://github.com/influxdata/telegraf/pull/1243): Logfile not created on systemd.
+
+## v0.13 [2016-05-11]
+
+### Release Notes
+
+- **Breaking change** in jolokia plugin. See
+https://github.com/influxdata/telegraf/blob/master/plugins/inputs/jolokia/README.md
+for updated configuration. The plugin will now support proxy mode and will make
+POST requests.
+
+- New [agent] configuration option: `metric_batch_size`. This option tells
+telegraf the maximum batch size to allow to accumulate before sending a flush
+to the configured outputs. `metric_buffer_limit` now refers to the absolute
+maximum number of metrics that will accumulate before metrics are dropped.
+
+- There is no longer an option to
+`flush_buffer_when_full`, this is now the default and only behavior of telegraf.
+
+- **Breaking Change**: docker plugin tags. The cont_id tag no longer exists, it
+will now be a field, and be called container_id. Additionally, cont_image and
+cont_name are being renamed to container_image and container_name.
+
+- **Breaking Change**: docker plugin measurements. The `docker_cpu`, `docker_mem`,
+`docker_blkio` and `docker_net` measurements are being renamed to
+`docker_container_cpu`, `docker_container_mem`, `docker_container_blkio` and
+`docker_container_net`. Why? Because these metrics are
+specifically tracking per-container stats. The problem with per-container stats,
+in some use-cases, is that if containers are short-lived AND names are not
+kept consistent, then the series cardinality will balloon very quickly.
+So adding "container" to each metric will:
+(1) make it more clear that these metrics are per-container, and
+(2) allow users to easily drop per-container metrics if cardinality is an
+issue (`namedrop = ["docker_container_*"]`)
+
+- `tagexclude` and `taginclude` are now available, which can be used to remove
+tags from measurements on inputs and outputs. See
+[the configuration doc](https://github.com/influxdata/telegraf/blob/master/docs/CONFIGURATION.md)
+for more details.
+
+- **Measurement filtering:** All measurement filters now match based on glob
+only. Previously there was an undocumented behavior where filters would match
+based on _prefix_ in addition to globs. This means that a filter like
+`fielddrop = ["time_"]` will need to be changed to `fielddrop = ["time_*"]`
+
+- **datadog**: measurement and field names will no longer have `_` replaced by `.`
+
+- The following plugins have changed their tags to _not_ overwrite the host tag:
+  - cassandra: `host -> cassandra_host`
+  - disque: `host -> disque_host`
+  - rethinkdb: `host -> rethinkdb_host`
+
+- **Breaking Change**: The `win_perf_counters` input has been changed to
+sanitize field names, replacing `/Sec` and `/sec` with `_persec`, as well as
+spaces with underscores. This is needed because Graphite doesn't like slashes
+and spaces, and was failing to accept metrics that had them.
+The `/[sS]ec` -> `_persec` is just to make things clearer and uniform.
+
+- **Breaking Change**: snmp plugin. The `host` tag of the snmp plugin has been
+changed to the `snmp_host` tag.
+
+- The `disk` input plugin can now be configured with the `HOST_MOUNT_PREFIX` environment variable.
+This value is prepended to any mountpaths discovered before retrieving stats.
+It is not included on the report path. This is necessary for reporting host disk stats when running from within a container.
+
+### Features
+
+- [#1031](https://github.com/influxdata/telegraf/pull/1031): Jolokia plugin proxy mode. Thanks @saiello!
+- [#1017](https://github.com/influxdata/telegraf/pull/1017): taginclude and tagexclude arguments.
+- [#1015](https://github.com/influxdata/telegraf/pull/1015): Docker plugin schema refactor.
+- [#889](https://github.com/influxdata/telegraf/pull/889): Improved MySQL plugin. Thanks @maksadbek!
+- [#1060](https://github.com/influxdata/telegraf/pull/1060): TTL metrics added to MongoDB input plugin
+- [#1056](https://github.com/influxdata/telegraf/pull/1056): Don't allow inputs to overwrite host tags.
+- [#1035](https://github.com/influxdata/telegraf/issues/1035): Add `user`, `exe`, `pidfile` tags to procstat plugin.
+- [#1041](https://github.com/influxdata/telegraf/issues/1041): Add `n_cpus` field to the system plugin.
+- [#1072](https://github.com/influxdata/telegraf/pull/1072): New Input Plugin: filestat.
+- [#1066](https://github.com/influxdata/telegraf/pull/1066): Replication lag metrics for MongoDB input plugin
+- [#1086](https://github.com/influxdata/telegraf/pull/1086): Ability to specify AWS keys in config file. Thanks @johnrengleman!
+- [#1096](https://github.com/influxdata/telegraf/pull/1096): Performance refactor of running output buffers.
+- [#967](https://github.com/influxdata/telegraf/issues/967): Buffer logging improvements.
+- [#1107](https://github.com/influxdata/telegraf/issues/1107): Support lustre2 job stats. Thanks @hanleyja!
+- [#1122](https://github.com/influxdata/telegraf/pull/1122): Support setting config path through env variable and default paths.
+- [#1128](https://github.com/influxdata/telegraf/pull/1128): MongoDB jumbo chunks metric for MongoDB input plugin
+- [#1146](https://github.com/influxdata/telegraf/pull/1146): HAProxy socket support. Thanks weshmashian!
+
+### Bugfixes
+
+- [#1050](https://github.com/influxdata/telegraf/issues/1050): jolokia plugin - do not overwrite host tag. Thanks @saiello!
+- [#921](https://github.com/influxdata/telegraf/pull/921): mqtt_consumer stops gathering metrics. Thanks @chaton78!
+- [#1013](https://github.com/influxdata/telegraf/pull/1013): Close dead riemann output connections. Thanks @echupriyanov!
+- [#1012](https://github.com/influxdata/telegraf/pull/1012): Set default tags in test accumulator.
+- [#1024](https://github.com/influxdata/telegraf/issues/1024): Don't replace `.` with `_` in datadog output.
+- [#1058](https://github.com/influxdata/telegraf/issues/1058): Fix possible leaky TCP connections in influxdb output.
+- [#1044](https://github.com/influxdata/telegraf/pull/1044): Fix SNMP OID possible collisions. Thanks @relip
+- [#1022](https://github.com/influxdata/telegraf/issues/1022): Dont error deb/rpm install on systemd errors.
+- [#1078](https://github.com/influxdata/telegraf/issues/1078): Use default AWS credential chain.
+- [#1070](https://github.com/influxdata/telegraf/issues/1070): SQL Server input. Fix datatype conversion.
+- [#1089](https://github.com/influxdata/telegraf/issues/1089): Fix leaky TCP connections in phpfpm plugin.
+- [#914](https://github.com/influxdata/telegraf/issues/914): Telegraf can drop metrics on full buffers.
+- [#1098](https://github.com/influxdata/telegraf/issues/1098): Sanitize invalid OpenTSDB characters.
+- [#1110](https://github.com/influxdata/telegraf/pull/1110): Sanitize * to - in graphite serializer. Thanks @goodeggs!
+- [#1118](https://github.com/influxdata/telegraf/pull/1118): Sanitize Counter names for `win_perf_counters` input.
+- [#1125](https://github.com/influxdata/telegraf/pull/1125): Wrap all exec command runners with a timeout, so hung os processes don't halt Telegraf.
+- [#1113](https://github.com/influxdata/telegraf/pull/1113): Set MaxRetry and RequiredAcks defaults in Kafka output.
+- [#1090](https://github.com/influxdata/telegraf/issues/1090): [agent] and [global_tags] config sometimes not getting applied.
+- [#1133](https://github.com/influxdata/telegraf/issues/1133): Use a timeout for docker list & stat cmds.
+- [#1052](https://github.com/influxdata/telegraf/issues/1052): Docker panic fix when decode fails.
+- [#1136](https://github.com/influxdata/telegraf/pull/1136): "DELAYED" Inserts were deprecated in MySQL 5.6.6. Thanks @PierreF
+
+## v0.12.1 [2016-04-14]
+
+### Release Notes
+- Breaking change in the dovecot input plugin. See Features section below.
+- Graphite output templates are now supported. See
+https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_OUTPUT.md#graphite
+- Possible breaking change for the librato and graphite outputs. Telegraf will
+no longer insert field names when the field is simply named `value`. This is
+because the `value` field is redundant in the graphite/librato context.
+
+### Features
+- [#1009](https://github.com/influxdata/telegraf/pull/1009): Cassandra input plugin. Thanks @subhachandrachandra!
+- [#976](https://github.com/influxdata/telegraf/pull/976): Reduce allocations in the UDP and statsd inputs.
+- [#979](https://github.com/influxdata/telegraf/pull/979): Reduce allocations in the TCP listener.
+- [#992](https://github.com/influxdata/telegraf/pull/992): Refactor allocations in TCP/UDP listeners.
+- [#935](https://github.com/influxdata/telegraf/pull/935): AWS Cloudwatch input plugin. Thanks @joshhardy & @ljosa!
+- [#943](https://github.com/influxdata/telegraf/pull/943): http_response input plugin. Thanks @Lswith!
+- [#939](https://github.com/influxdata/telegraf/pull/939): sysstat input plugin. Thanks @zbindenren!
+- [#998](https://github.com/influxdata/telegraf/pull/998): **breaking change** enabled global, user and ip queries in dovecot plugin. Thanks @mikif70!
+- [#1001](https://github.com/influxdata/telegraf/pull/1001): Graphite serializer templates.
+- [#1008](https://github.com/influxdata/telegraf/pull/1008): Adding memstats metrics to the influxdb plugin.
+
+### Bugfixes
+- [#968](https://github.com/influxdata/telegraf/issues/968): Processes plugin gets unknown state when spaces are in (command name)
+- [#969](https://github.com/influxdata/telegraf/pull/969): ipmi_sensors: allow : in password. Thanks @awaw!
+- [#972](https://github.com/influxdata/telegraf/pull/972): dovecot: remove extra newline in dovecot command. Thanks @mrannanj!
+- [#645](https://github.com/influxdata/telegraf/issues/645): docker plugin i/o error on closed pipe. Thanks @tripledes!
+
+## v0.12.0 [2016-04-05]
+
+### Features
+- [#951](https://github.com/influxdata/telegraf/pull/951): Parse environment variables in the config file.
+- [#948](https://github.com/influxdata/telegraf/pull/948): Cleanup config file and make default package version include all plugins (but commented).
+- [#927](https://github.com/influxdata/telegraf/pull/927): Adds parsing of tags to the statsd input when using DataDog's dogstatsd extension
+- [#863](https://github.com/influxdata/telegraf/pull/863): AMQP output: allow external auth. Thanks @ekini!
+- [#707](https://github.com/influxdata/telegraf/pull/707): Improved prometheus plugin. Thanks @titilambert!
+- [#878](https://github.com/influxdata/telegraf/pull/878): Added json serializer. Thanks @ch3lo!
+- [#880](https://github.com/influxdata/telegraf/pull/880): Add the ability to specify the bearer token to the prometheus plugin. Thanks @jchauncey!
+- [#882](https://github.com/influxdata/telegraf/pull/882): Fixed SQL Server Plugin issues
+- [#849](https://github.com/influxdata/telegraf/issues/849): Adding ability to parse single values as an input data type.
+- [#844](https://github.com/influxdata/telegraf/pull/844): postgres_extensible plugin added. Thanks @menardorama!
+- [#866](https://github.com/influxdata/telegraf/pull/866): couchbase input plugin. Thanks @ljosa!
+- [#789](https://github.com/influxdata/telegraf/pull/789): Support multiple field specification and `field*` in graphite templates. Thanks @chrusty!
+- [#762](https://github.com/influxdata/telegraf/pull/762): Nagios parser for the exec plugin. Thanks @titilambert!
+- [#848](https://github.com/influxdata/telegraf/issues/848): Provide option to omit host tag from telegraf agent.
+- [#928](https://github.com/influxdata/telegraf/pull/928): Deprecating the statsd "convert_names" options, expose separator config.
+- [#919](https://github.com/influxdata/telegraf/pull/919): ipmi_sensor input plugin. Thanks @ebookbug!
+- [#945](https://github.com/influxdata/telegraf/pull/945): KAFKA output: codec, acks, and retry configuration. Thanks @framiere!
+
+### Bugfixes
+- [#890](https://github.com/influxdata/telegraf/issues/890): Create TLS config even if only ssl_ca is provided.
+- [#884](https://github.com/influxdata/telegraf/issues/884): Do not call write method if there are 0 metrics to write.
+- [#898](https://github.com/influxdata/telegraf/issues/898): Put database name in quotes, fixes special characters in the database name.
+- [#656](https://github.com/influxdata/telegraf/issues/656): No longer run `lsof` on linux to get netstat data, fixes permissions issue.
+- [#907](https://github.com/influxdata/telegraf/issues/907): Fix prometheus invalid label/measurement name key.
+- [#841](https://github.com/influxdata/telegraf/issues/841): Fix memcached unix socket panic.
+- [#873](https://github.com/influxdata/telegraf/issues/873): Fix SNMP plugin sometimes not returning metrics. Thanks @titiliambert!
+- [#934](https://github.com/influxdata/telegraf/pull/934): phpfpm: Fix fcgi uri path. Thanks @rudenkovk!
+- [#805](https://github.com/influxdata/telegraf/issues/805): Kafka consumer stops gathering after i/o timeout.
+- [#959](https://github.com/influxdata/telegraf/pull/959): reduce mongodb & prometheus collection timeouts. Thanks @PierreF!
+
+## v0.11.1 [2016-03-17]
+
+### Release Notes
+- Primarily this release was cut to fix [#859](https://github.com/influxdata/telegraf/issues/859)
+
+### Features
+- [#747](https://github.com/influxdata/telegraf/pull/747): Start telegraf on install & remove on uninstall. Thanks @pierref!
+- [#794](https://github.com/influxdata/telegraf/pull/794): Add service reload ability. Thanks @entertainyou!
+
+### Bugfixes
+- [#852](https://github.com/influxdata/telegraf/issues/852): Windows zip package fix
+- [#859](https://github.com/influxdata/telegraf/issues/859): httpjson plugin panic
+
+## v0.11.0 [2016-03-15]
+
+### Release Notes
+
+### Features
+- [#692](https://github.com/influxdata/telegraf/pull/770): Support InfluxDB retention policies
+- [#771](https://github.com/influxdata/telegraf/pull/771): Default timeouts for input plugns. Thanks @PierreF!
+- [#758](https://github.com/influxdata/telegraf/pull/758): UDP Listener input plugin, thanks @whatyouhide!
+- [#769](https://github.com/influxdata/telegraf/issues/769): httpjson plugin: allow specifying SSL configuration.
+- [#735](https://github.com/influxdata/telegraf/pull/735): SNMP Table feature. Thanks @titilambert!
+- [#754](https://github.com/influxdata/telegraf/pull/754): docker plugin: adding `docker info` metrics to output. Thanks @titilambert!
+- [#788](https://github.com/influxdata/telegraf/pull/788): -input-list and -output-list command-line options. Thanks @ebookbug!
+- [#778](https://github.com/influxdata/telegraf/pull/778): Adding a TCP input listener.
+- [#797](https://github.com/influxdata/telegraf/issues/797): Provide option for persistent MQTT consumer client sessions.
+- [#799](https://github.com/influxdata/telegraf/pull/799): Add number of threads for procstat input plugin. Thanks @titilambert!
+- [#776](https://github.com/influxdata/telegraf/pull/776): Add Zookeeper chroot option to kafka_consumer. Thanks @prune998!
+- [#811](https://github.com/influxdata/telegraf/pull/811): Add processes plugin for classifying total procs on system. Thanks @titilambert!
+- [#235](https://github.com/influxdata/telegraf/issues/235): Add number of users to the `system` input plugin.
+- [#826](https://github.com/influxdata/telegraf/pull/826): "kernel" linux plugin for /proc/stat metrics (context switches, interrupts, etc.)
+- [#847](https://github.com/influxdata/telegraf/pull/847): `ntpq`: Input plugin for running ntp query executable and gathering metrics.
+
+### Bugfixes
+- [#748](https://github.com/influxdata/telegraf/issues/748): Fix sensor plugin split on ":"
+- [#722](https://github.com/influxdata/telegraf/pull/722): Librato output plugin fixes. Thanks @chrusty!
+- [#745](https://github.com/influxdata/telegraf/issues/745): Fix Telegraf toml parse panic on large config files. Thanks @titilambert!
+- [#781](https://github.com/influxdata/telegraf/pull/781): Fix mqtt_consumer username not being set. Thanks @chaton78!
+- [#786](https://github.com/influxdata/telegraf/pull/786): Fix mqtt output username not being set. Thanks @msangoi!
+- [#773](https://github.com/influxdata/telegraf/issues/773): Fix duplicate measurements in snmp plugin. Thanks @titilambert!
+- [#708](https://github.com/influxdata/telegraf/issues/708): packaging: build ARM package
+- [#713](https://github.com/influxdata/telegraf/issues/713): packaging: insecure permissions error on log directory
+- [#816](https://github.com/influxdata/telegraf/issues/816): Fix phpfpm panic if fcgi endpoint unreachable.
+- [#828](https://github.com/influxdata/telegraf/issues/828): fix net_response plugin overwriting host tag.
+- [#821](https://github.com/influxdata/telegraf/issues/821): Remove postgres password from server tag. Thanks @menardorama!
+
+## v0.10.4.1
+
+### Release Notes
+- Bug in the build script broke deb and rpm packages.
+
+### Bugfixes
+- [#750](https://github.com/influxdata/telegraf/issues/750): deb package broken
+- [#752](https://github.com/influxdata/telegraf/issues/752): rpm package broken
+
+## v0.10.4 [2016-02-24]
+
+### Release Notes
+- The pass/drop parameters have been renamed to fielddrop/fieldpass parameters,
+to more accurately indicate their purpose.
+- There are also now namedrop/namepass parameters for passing/dropping based
+on the metric _name_.
+- Experimental windows builds now available.
+
+### Features
+- [#727](https://github.com/influxdata/telegraf/pull/727): riak input, thanks @jcoene!
+- [#694](https://github.com/influxdata/telegraf/pull/694): DNS Query input, thanks @mjasion!
+- [#724](https://github.com/influxdata/telegraf/pull/724): username matching for procstat input, thanks @zorel!
+- [#736](https://github.com/influxdata/telegraf/pull/736): Ignore dummy filesystems from disk plugin. Thanks @PierreF!
+- [#737](https://github.com/influxdata/telegraf/pull/737): Support multiple fields for statsd input. Thanks @mattheath!
+
+### Bugfixes
+- [#701](https://github.com/influxdata/telegraf/pull/701): output write count shouldnt print in quiet mode.
+- [#746](https://github.com/influxdata/telegraf/pull/746): httpjson plugin: Fix HTTP GET parameters.
+
+## v0.10.3 [2016-02-18]
+
+### Release Notes
+- Users of the `exec` and `kafka_consumer` (and the new `nats_consumer`
+and `mqtt_consumer` plugins) can now specify the incoming data
+format that they would like to parse. Currently supports: "json", "influx", and
+"graphite"
+- Users of message broker and file output plugins can now choose what data format
+they would like to output. Currently supports: "influx" and "graphite"
+- More info on parsing _incoming_ data formats can be found
+[here](https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md)
+- More info on serializing _outgoing_ data formats can be found
+[here](https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_OUTPUT.md)
+- Telegraf now has an option `flush_buffer_when_full` that will flush the
+metric buffer whenever it fills up for each output, rather than dropping
+points and only flushing on a set time interval. This will default to `true`
+and is in the `[agent]` config section.
+
+### Features
+- [#652](https://github.com/influxdata/telegraf/pull/652): CouchDB Input Plugin. Thanks @codehate!
+- [#655](https://github.com/influxdata/telegraf/pull/655): Support parsing arbitrary data formats. Currently limited to kafka_consumer and exec inputs.
+- [#671](https://github.com/influxdata/telegraf/pull/671): Dovecot input plugin. Thanks @mikif70!
+- [#680](https://github.com/influxdata/telegraf/pull/680): NATS consumer input plugin. Thanks @netixen!
+- [#676](https://github.com/influxdata/telegraf/pull/676): MQTT consumer input plugin.
+- [#683](https://github.com/influxdata/telegraf/pull/683): PostGRES input plugin: add pg_stat_bgwriter. Thanks @menardorama!
+- [#679](https://github.com/influxdata/telegraf/pull/679): File/stdout output plugin.
+- [#679](https://github.com/influxdata/telegraf/pull/679): Support for arbitrary output data formats.
+- [#695](https://github.com/influxdata/telegraf/pull/695): raindrops input plugin. Thanks @burdandrei!
+- [#650](https://github.com/influxdata/telegraf/pull/650): net_response input plugin. Thanks @titilambert!
+- [#699](https://github.com/influxdata/telegraf/pull/699): Flush based on buffer size rather than time.
+- [#682](https://github.com/influxdata/telegraf/pull/682): Mesos input plugin. Thanks @tripledes!
+
+### Bugfixes
+- [#443](https://github.com/influxdata/telegraf/issues/443): Fix Ping command timeout parameter on Linux.
+- [#662](https://github.com/influxdata/telegraf/pull/667): Change `[tags]` to `[global_tags]` to fix multiple-plugin tags bug.
+- [#642](https://github.com/influxdata/telegraf/issues/642): Riemann output plugin issues.
+- [#394](https://github.com/influxdata/telegraf/issues/394): Support HTTP POST. Thanks @gabelev!
+- [#715](https://github.com/influxdata/telegraf/pull/715): Fix influxdb precision config panic. Thanks @netixen!
+
+## v0.10.2 [2016-02-04]
+
+### Release Notes
+- Statsd timing measurements are now aggregated into a single measurement with
+fields.
+- Graphite output now inserts tags into the bucket in alphabetical order.
+- Normalized TLS/SSL support for output plugins: MQTT, AMQP, Kafka
+- `verify_ssl` config option was removed from Kafka because it was actually
+doing the opposite of what it claimed to do (yikes). It's been replaced by
+`insecure_skip_verify`
+
+### Features
+- [#575](https://github.com/influxdata/telegraf/pull/575): Support for collecting Windows Performance Counters. Thanks @TheFlyingCorpse!
+- [#564](https://github.com/influxdata/telegraf/issues/564): features for plugin writing simplification. Internal metric data type.
+- [#603](https://github.com/influxdata/telegraf/pull/603): Aggregate statsd timing measurements into fields. Thanks @marcinbunsch!
+- [#601](https://github.com/influxdata/telegraf/issues/601): Warn when overwriting cached metrics.
+- [#614](https://github.com/influxdata/telegraf/pull/614): PowerDNS input plugin. Thanks @Kasen!
+- [#617](https://github.com/influxdata/telegraf/pull/617): exec plugin: parse influx line protocol in addition to JSON.
+- [#628](https://github.com/influxdata/telegraf/pull/628): Windows perf counters: pre-vista support
+
+### Bugfixes
+- [#595](https://github.com/influxdata/telegraf/issues/595): graphite output should include tags to separate duplicate measurements.
+- [#599](https://github.com/influxdata/telegraf/issues/599): datadog plugin tags not working.
+- [#600](https://github.com/influxdata/telegraf/issues/600): datadog measurement/field name parsing is wrong.
+- [#602](https://github.com/influxdata/telegraf/issues/602): Fix statsd field name templating.
+- [#612](https://github.com/influxdata/telegraf/pull/612): Docker input panic fix if stats received are nil.
+- [#634](https://github.com/influxdata/telegraf/pull/634): Properly set host headers in httpjson. Thanks @reginaldosousa!
+
+## v0.10.1 [2016-01-27]
+
+### Release Notes
+
+- Telegraf now keeps a fixed-length buffer of metrics per-output. This buffer
+defaults to 10,000 metrics, and is adjustable. The buffer is cleared when a
+successful write to that output occurs.
+- The docker plugin has been significantly overhauled to add more metrics
+and allow for docker-machine (incl OSX) support.
+[See the readme](https://github.com/influxdata/telegraf/blob/master/plugins/inputs/docker/README.md)
+for the latest measurements, fields, and tags. There is also now support for
+specifying a docker endpoint to get metrics from.
+
+### Features
+- [#509](https://github.com/influxdata/telegraf/pull/509): Flatten JSON arrays with indices. Thanks @psilva261!
+- [#512](https://github.com/influxdata/telegraf/pull/512): Python 3 build script, add lsof dep to package. Thanks @Ormod!
+- [#475](https://github.com/influxdata/telegraf/pull/475): Add response time to httpjson plugin. Thanks @titilambert!
+- [#519](https://github.com/influxdata/telegraf/pull/519): Added a sensors input based on lm-sensors. Thanks @md14454!
+- [#467](https://github.com/influxdata/telegraf/issues/467): Add option to disable statsd measurement name conversion.
+- [#534](https://github.com/influxdata/telegraf/pull/534): NSQ input plugin. Thanks @allingeek!
+- [#494](https://github.com/influxdata/telegraf/pull/494): Graphite output plugin. Thanks @titilambert!
+- AMQP SSL support. Thanks @ekini!
+- [#539](https://github.com/influxdata/telegraf/pull/539): Reload config on SIGHUP. Thanks @titilambert!
+- [#522](https://github.com/influxdata/telegraf/pull/522): Phusion passenger input plugin. Thanks @kureikain!
+- [#541](https://github.com/influxdata/telegraf/pull/541): Kafka output TLS cert support. Thanks @Ormod!
+- [#551](https://github.com/influxdata/telegraf/pull/551): Statsd UDP read packet size now defaults to 1500 bytes, and is configurable.
+- [#552](https://github.com/influxdata/telegraf/pull/552): Support for collection interval jittering.
+- [#484](https://github.com/influxdata/telegraf/issues/484): Include usage percent with procstat metrics.
+- [#553](https://github.com/influxdata/telegraf/pull/553): Amazon CloudWatch output. thanks @skwong2!
+- [#503](https://github.com/influxdata/telegraf/pull/503): Support docker endpoint configuration.
+- [#563](https://github.com/influxdata/telegraf/pull/563): Docker plugin overhaul.
+- [#285](https://github.com/influxdata/telegraf/issues/285): Fixed-size buffer of points.
+- [#546](https://github.com/influxdata/telegraf/pull/546): SNMP Input plugin. Thanks @titilambert!
+- [#589](https://github.com/influxdata/telegraf/pull/589): Microsoft SQL Server input plugin. Thanks @zensqlmonitor!
+- [#573](https://github.com/influxdata/telegraf/pull/573): Github webhooks consumer input. Thanks @jackzampolin!
+- [#471](https://github.com/influxdata/telegraf/pull/471): httpjson request headers. Thanks @asosso!
+
+### Bugfixes
+- [#506](https://github.com/influxdata/telegraf/pull/506): Ping input doesn't return response time metric when timeout. Thanks @titilambert!
+- [#508](https://github.com/influxdata/telegraf/pull/508): Fix prometheus cardinality issue with the `net` plugin
+- [#499](https://github.com/influxdata/telegraf/issues/499) & [#502](https://github.com/influxdata/telegraf/issues/502): php fpm unix socket and other fixes, thanks @kureikain!
+- [#543](https://github.com/influxdata/telegraf/issues/543): Statsd Packet size sometimes truncated.
+- [#440](https://github.com/influxdata/telegraf/issues/440): Don't query filtered devices for disk stats.
+- [#463](https://github.com/influxdata/telegraf/issues/463): Docker plugin not working on AWS Linux
+- [#568](https://github.com/influxdata/telegraf/issues/568): Multiple output race condition.
+- [#585](https://github.com/influxdata/telegraf/pull/585): Log stack trace and continue on Telegraf panic. Thanks @wutaizeng!
+
+## v0.10.0 [2016-01-12]
+
+### Release Notes
+- Linux packages have been taken out of `opt`, the binary is now in `/usr/bin`
+and configuration files are in `/etc/telegraf`
+- **breaking change** `plugins` have been renamed to `inputs`. This was done because
+`plugins` is too generic, as there are now also "output plugins", and will likely
+be "aggregator plugins" and "filter plugins" in the future. Additionally,
+`inputs/` and `outputs/` directories have been placed in the root-level `plugins/`
+directory.
+- **breaking change** the `io` plugin has been renamed `diskio`
+- **breaking change** plugin measurements aggregated into a single measurement.
+- **breaking change** `jolokia` plugin: must use global tag/drop/pass parameters
+for configuration.
+- **breaking change** `twemproxy` plugin: `prefix` option removed.
+- **breaking change** `procstat` cpu measurements are now prepended with `cpu_time_`
+instead of only `cpu_`
+- **breaking change** some command-line flags have been renamed to separate words.
+`-configdirectory` -> `-config-directory`, `-filter` -> `-input-filter`,
+`-outputfilter` -> `-output-filter`
+- The prometheus plugin schema has not been changed (measurements have not been
+aggregated).
+
+### Packaging change note:
+
+RHEL/CentOS users upgrading from 0.2.x to 0.10.0 will probably have their
+configurations overwritten by the upgrade. There is a backup stored at
+/etc/telegraf/telegraf.conf.$(date +%s).backup.
+
+### Features
+- Plugin measurements aggregated into a single measurement.
+- Added ability to specify per-plugin tags
+- Added ability to specify per-plugin measurement suffix and prefix.
+(`name_prefix` and `name_suffix`)
+- Added ability to override base plugin measurement name. (`name_override`)
+
+### Bugfixes
+
 ## v0.2.5 [unreleased]
 
 ### Features
-- [#427](https://github.com/influxdb/telegraf/pull/427): zfs plugin: pool stats added. Thanks @allenpetersen!
+- [#427](https://github.com/influxdata/telegraf/pull/427): zfs plugin: pool stats added. Thanks @allenpetersen!
-- [#428](https://github.com/influxdb/telegraf/pull/428): Amazon Kinesis output. Thanks @jimmystewpot!
+- [#428](https://github.com/influxdata/telegraf/pull/428): Amazon Kinesis output. Thanks @jimmystewpot!
-- [#449](https://github.com/influxdb/telegraf/pull/449): influxdb plugin, thanks @mark-rushakoff
+- [#449](https://github.com/influxdata/telegraf/pull/449): influxdb plugin, thanks @mark-rushakoff
 
 ### Bugfixes
-- [#430](https://github.com/influxdb/telegraf/issues/430): Network statistics removed in elasticsearch 2.1. Thanks @jipperinbham!
+- [#430](https://github.com/influxdata/telegraf/issues/430): Network statistics removed in elasticsearch 2.1. Thanks @jipperinbham!
-- [#452](https://github.com/influxdb/telegraf/issues/452): Elasticsearch open file handles error. Thanks @jipperinbham!
+- [#452](https://github.com/influxdata/telegraf/issues/452): Elasticsearch open file handles error. Thanks @jipperinbham!
 
 ## v0.2.4 [2015-12-08]
 
 ### Features
-- [#412](https://github.com/influxdb/telegraf/pull/412): Additional memcached stats. Thanks @mgresser!
+- [#412](https://github.com/influxdata/telegraf/pull/412): Additional memcached stats. Thanks @mgresser!
-- [#410](https://github.com/influxdb/telegraf/pull/410): Additional redis metrics. Thanks @vlaadbrain!
+- [#410](https://github.com/influxdata/telegraf/pull/410): Additional redis metrics. Thanks @vlaadbrain!
-- [#414](https://github.com/influxdb/telegraf/issues/414): Jolokia plugin auth parameters
+- [#414](https://github.com/influxdata/telegraf/issues/414): Jolokia plugin auth parameters
-- [#415](https://github.com/influxdb/telegraf/issues/415): memcached plugin: support unix sockets
+- [#415](https://github.com/influxdata/telegraf/issues/415): memcached plugin: support unix sockets
-- [#418](https://github.com/influxdb/telegraf/pull/418): memcached plugin additional unit tests.
+- [#418](https://github.com/influxdata/telegraf/pull/418): memcached plugin additional unit tests.
-- [#408](https://github.com/influxdb/telegraf/pull/408): MailChimp plugin.
+- [#408](https://github.com/influxdata/telegraf/pull/408): MailChimp plugin.
-- [#382](https://github.com/influxdb/telegraf/pull/382): Add system wide network protocol stats to `net` plugin.
+- [#382](https://github.com/influxdata/telegraf/pull/382): Add system wide network protocol stats to `net` plugin.
-- [#401](https://github.com/influxdb/telegraf/pull/401): Support pass/drop/tagpass/tagdrop for outputs. Thanks @oldmantaiter!
+- [#401](https://github.com/influxdata/telegraf/pull/401): Support pass/drop/tagpass/tagdrop for outputs. Thanks @oldmantaiter!
 
 ### Bugfixes
-- [#405](https://github.com/influxdb/telegraf/issues/405): Prometheus output cardinality issue
+- [#405](https://github.com/influxdata/telegraf/issues/405): Prometheus output cardinality issue
-- [#388](https://github.com/influxdb/telegraf/issues/388): Fix collection hangup when cpu times decrement.
+- [#388](https://github.com/influxdata/telegraf/issues/388): Fix collection hangup when cpu times decrement.
 
 ## v0.2.3 [2015-11-30]
 
@@ -38,11 +521,11 @@ functional.
 same type can be specified, like this:
 
 ```
-[[plugins.cpu]]
+[[inputs.cpu]]
   percpu = false
   totalcpu = true
 
-[[plugins.cpu]]
+[[inputs.cpu]]
   percpu = true
   totalcpu = false
   drop = ["cpu_time"]
@@ -52,15 +535,15 @@ same type can be specified, like this:
 - Aerospike plugin: tag changed from `host` -> `aerospike_host`
 
 ### Features
-- [#379](https://github.com/influxdb/telegraf/pull/379): Riemann output, thanks @allenj!
+- [#379](https://github.com/influxdata/telegraf/pull/379): Riemann output, thanks @allenj!
-- [#375](https://github.com/influxdb/telegraf/pull/375): kafka_consumer service plugin.
+- [#375](https://github.com/influxdata/telegraf/pull/375): kafka_consumer service plugin.
-- [#392](https://github.com/influxdb/telegraf/pull/392): Procstat plugin can now accept pgrep -f pattern, thanks @ecarreras!
+- [#392](https://github.com/influxdata/telegraf/pull/392): Procstat plugin can now accept pgrep -f pattern, thanks @ecarreras!
-- [#383](https://github.com/influxdb/telegraf/pull/383): Specify plugins as a list.
+- [#383](https://github.com/influxdata/telegraf/pull/383): Specify plugins as a list.
-- [#354](https://github.com/influxdb/telegraf/pull/354): Add ability to specify multiple metrics in one statsd line. Thanks @MerlinDMC!
+- [#354](https://github.com/influxdata/telegraf/pull/354): Add ability to specify multiple metrics in one statsd line. Thanks @MerlinDMC!
 
 ### Bugfixes
-- [#371](https://github.com/influxdb/telegraf/issues/371): Kafka consumer plugin not functioning.
+- [#371](https://github.com/influxdata/telegraf/issues/371): Kafka consumer plugin not functioning.
-- [#389](https://github.com/influxdb/telegraf/issues/389): NaN value panic
+- [#389](https://github.com/influxdata/telegraf/issues/389): NaN value panic
 
 ## v0.2.2 [2015-11-18]
 
@@ -69,7 +552,7 @@ same type can be specified, like this:
 lists of servers/URLs. 0.2.2 is being released solely to fix that bug
 
 ### Bugfixes
-- [#377](https://github.com/influxdb/telegraf/pull/377): Fix for duplicate slices in plugins.
+- [#377](https://github.com/influxdata/telegraf/pull/377): Fix for duplicate slices in inputs.
 
 ## v0.2.1 [2015-11-16]
 
@@ -86,22 +569,22 @@ changed to just run docker commands in the Makefile. See `make docker-run` and
 same type.
 
 ### Features
-- [#325](https://github.com/influxdb/telegraf/pull/325): NSQ output. Thanks @jrxFive!
+- [#325](https://github.com/influxdata/telegraf/pull/325): NSQ output. Thanks @jrxFive!
-- [#318](https://github.com/influxdb/telegraf/pull/318): Prometheus output. Thanks @oldmantaiter!
+- [#318](https://github.com/influxdata/telegraf/pull/318): Prometheus output. Thanks @oldmantaiter!
-- [#338](https://github.com/influxdb/telegraf/pull/338): Restart Telegraf on package upgrade. Thanks @linsomniac!
+- [#338](https://github.com/influxdata/telegraf/pull/338): Restart Telegraf on package upgrade. Thanks @linsomniac!
-- [#337](https://github.com/influxdb/telegraf/pull/337): Jolokia plugin, thanks @saiello!
+- [#337](https://github.com/influxdata/telegraf/pull/337): Jolokia plugin, thanks @saiello!
-- [#350](https://github.com/influxdb/telegraf/pull/350): Amon output.
+- [#350](https://github.com/influxdata/telegraf/pull/350): Amon output.
-- [#365](https://github.com/influxdb/telegraf/pull/365): Twemproxy plugin by @codeb2cc
+- [#365](https://github.com/influxdata/telegraf/pull/365): Twemproxy plugin by @codeb2cc
-- [#317](https://github.com/influxdb/telegraf/issues/317): ZFS plugin, thanks @cornerot!
+- [#317](https://github.com/influxdata/telegraf/issues/317): ZFS plugin, thanks @cornerot!
-- [#364](https://github.com/influxdb/telegraf/pull/364): Support InfluxDB UDP output.
+- [#364](https://github.com/influxdata/telegraf/pull/364): Support InfluxDB UDP output.
-- [#370](https://github.com/influxdb/telegraf/pull/370): Support specifying multiple outputs, as lists.
+- [#370](https://github.com/influxdata/telegraf/pull/370): Support specifying multiple outputs, as lists.
-- [#372](https://github.com/influxdb/telegraf/pull/372): Remove gosigar and update go-dockerclient for FreeBSD support. Thanks @MerlinDMC!
+- [#372](https://github.com/influxdata/telegraf/pull/372): Remove gosigar and update go-dockerclient for FreeBSD support. Thanks @MerlinDMC!
 
 ### Bugfixes
-- [#331](https://github.com/influxdb/telegraf/pull/331): Dont overwrite host tag in redis plugin.
+- [#331](https://github.com/influxdata/telegraf/pull/331): Dont overwrite host tag in redis plugin.
-- [#336](https://github.com/influxdb/telegraf/pull/336): Mongodb plugin should take 2 measurements.
+- [#336](https://github.com/influxdata/telegraf/pull/336): Mongodb plugin should take 2 measurements.
-- [#351](https://github.com/influxdb/telegraf/issues/317): Fix continual "CREATE DATABASE" in writes
+- [#351](https://github.com/influxdata/telegraf/issues/317): Fix continual "CREATE DATABASE" in writes
-- [#360](https://github.com/influxdb/telegraf/pull/360): Apply prefix before ShouldPass check. Thanks @sotfo!
+- [#360](https://github.com/influxdata/telegraf/pull/360): Apply prefix before ShouldPass check. Thanks @sotfo!
 
 ## v0.2.0 [2015-10-27]
 
@@ -122,38 +605,38 @@ be controlled via the `round_interval` and `flush_jitter` config options.
 - Telegraf will now retry metric flushes twice
 
 ### Features
-- [#205](https://github.com/influxdb/telegraf/issues/205): Include per-db redis keyspace info
+- [#205](https://github.com/influxdata/telegraf/issues/205): Include per-db redis keyspace info
-- [#226](https://github.com/influxdb/telegraf/pull/226): Add timestamps to points in Kafka/AMQP outputs. Thanks @ekini
+- [#226](https://github.com/influxdata/telegraf/pull/226): Add timestamps to points in Kafka/AMQP outputs. Thanks @ekini
-- [#90](https://github.com/influxdb/telegraf/issues/90): Add Docker labels to tags in docker plugin
+- [#90](https://github.com/influxdata/telegraf/issues/90): Add Docker labels to tags in docker plugin
-- [#223](https://github.com/influxdb/telegraf/pull/223): Add port tag to nginx plugin. Thanks @neezgee!
+- [#223](https://github.com/influxdata/telegraf/pull/223): Add port tag to nginx plugin. Thanks @neezgee!
-- [#227](https://github.com/influxdb/telegraf/pull/227): Add command intervals to exec plugin. Thanks @jpalay!
+- [#227](https://github.com/influxdata/telegraf/pull/227): Add command intervals to exec plugin. Thanks @jpalay!
-- [#241](https://github.com/influxdb/telegraf/pull/241): MQTT Output. Thanks @shirou!
+- [#241](https://github.com/influxdata/telegraf/pull/241): MQTT Output. Thanks @shirou!
 - Memory plugin: cached and buffered measurements re-added
 - Logging: additional logging for each collection interval, track the number
-of metrics collected and from how many plugins.
+of metrics collected and from how many inputs.
-- [#240](https://github.com/influxdb/telegraf/pull/240): procstat plugin, thanks @ranjib!
+- [#240](https://github.com/influxdata/telegraf/pull/240): procstat plugin, thanks @ranjib!
-- [#244](https://github.com/influxdb/telegraf/pull/244): netstat plugin, thanks @shirou!
+- [#244](https://github.com/influxdata/telegraf/pull/244): netstat plugin, thanks @shirou!
-- [#262](https://github.com/influxdb/telegraf/pull/262): zookeeper plugin, thanks @jrxFive!
+- [#262](https://github.com/influxdata/telegraf/pull/262): zookeeper plugin, thanks @jrxFive!
-- [#237](https://github.com/influxdb/telegraf/pull/237): statsd service plugin, thanks @sparrc
+- [#237](https://github.com/influxdata/telegraf/pull/237): statsd service plugin, thanks @sparrc
-- [#273](https://github.com/influxdb/telegraf/pull/273): puppet agent plugin, thats @jrxFive!
+- [#273](https://github.com/influxdata/telegraf/pull/273): puppet agent plugin, thats @jrxFive!
-- [#280](https://github.com/influxdb/telegraf/issues/280): Use InfluxDB client v2.
+- [#280](https://github.com/influxdata/telegraf/issues/280): Use InfluxDB client v2.
-- [#281](https://github.com/influxdb/telegraf/issues/281): Eliminate need to deep copy Batch Points.
+- [#281](https://github.com/influxdata/telegraf/issues/281): Eliminate need to deep copy Batch Points.
-- [#286](https://github.com/influxdb/telegraf/issues/286): bcache plugin, thanks @cornerot!
+- [#286](https://github.com/influxdata/telegraf/issues/286): bcache plugin, thanks @cornerot!
-- [#287](https://github.com/influxdb/telegraf/issues/287): Batch AMQP output, thanks @ekini!
+- [#287](https://github.com/influxdata/telegraf/issues/287): Batch AMQP output, thanks @ekini!
-- [#301](https://github.com/influxdb/telegraf/issues/301): Collect on even intervals
+- [#301](https://github.com/influxdata/telegraf/issues/301): Collect on even intervals
-- [#298](https://github.com/influxdb/telegraf/pull/298): Support retrying output writes
+- [#298](https://github.com/influxdata/telegraf/pull/298): Support retrying output writes
-- [#300](https://github.com/influxdb/telegraf/issues/300): aerospike plugin. Thanks @oldmantaiter!
+- [#300](https://github.com/influxdata/telegraf/issues/300): aerospike plugin. Thanks @oldmantaiter!
-- [#322](https://github.com/influxdb/telegraf/issues/322): Librato output. Thanks @jipperinbham!
+- [#322](https://github.com/influxdata/telegraf/issues/322): Librato output. Thanks @jipperinbham!
 
 ### Bugfixes
-- [#228](https://github.com/influxdb/telegraf/pull/228): New version of package will replace old one. Thanks @ekini!
+- [#228](https://github.com/influxdata/telegraf/pull/228): New version of package will replace old one. Thanks @ekini!
-- [#232](https://github.com/influxdb/telegraf/pull/232): Fix bashism run during deb package installation. Thanks @yankcrime!
+- [#232](https://github.com/influxdata/telegraf/pull/232): Fix bashism run during deb package installation. Thanks @yankcrime!
-- [#261](https://github.com/influxdb/telegraf/issues/260): RabbitMQ panics if wrong credentials given. Thanks @ekini!
+- [#261](https://github.com/influxdata/telegraf/issues/260): RabbitMQ panics if wrong credentials given. Thanks @ekini!
-- [#245](https://github.com/influxdb/telegraf/issues/245): Document Exec plugin example. Thanks @ekini!
+- [#245](https://github.com/influxdata/telegraf/issues/245): Document Exec plugin example. Thanks @ekini!
-- [#264](https://github.com/influxdb/telegraf/issues/264): logrotate config file fixes. Thanks @linsomniac!
+- [#264](https://github.com/influxdata/telegraf/issues/264): logrotate config file fixes. Thanks @linsomniac!
-- [#290](https://github.com/influxdb/telegraf/issues/290): Fix some plugins sending their values as strings.
+- [#290](https://github.com/influxdata/telegraf/issues/290): Fix some plugins sending their values as strings.
-- [#289](https://github.com/influxdb/telegraf/issues/289): Fix accumulator panic on nil tags.
+- [#289](https://github.com/influxdata/telegraf/issues/289): Fix accumulator panic on nil tags.
-- [#302](https://github.com/influxdb/telegraf/issues/302): Fix `[tags]` getting applied, thanks @gotyaoi!
+- [#302](https://github.com/influxdata/telegraf/issues/302): Fix `[tags]` getting applied, thanks @gotyaoi!
 
 ## v0.1.9 [2015-09-22]
 
@@ -163,7 +646,7 @@ will still be backwards compatible if only `url` is specified.
 - The -test flag will now output two metric collections
 - Support for filtering telegraf outputs on the CLI -- Telegraf will now
 allow filtering of output sinks on the command-line using the `-outputfilter`
-flag, much like how the `-filter` flag works for plugins.
+flag, much like how the `-filter` flag works for inputs.
 - Support for filtering on config-file creation -- Telegraf now supports
 filtering to -sample-config command. You can now run
 `telegraf -sample-config -filter cpu -outputfilter influxdb` to get a config
@@ -179,27 +662,27 @@ have been renamed for consistency. Some measurements have also been removed from
 re-added in a "verbose" mode if there is demand for it.
 
 ### Features
-- [#143](https://github.com/influxdb/telegraf/issues/143): InfluxDB clustering support
+- [#143](https://github.com/influxdata/telegraf/issues/143): InfluxDB clustering support
-- [#181](https://github.com/influxdb/telegraf/issues/181): Makefile GOBIN support. Thanks @Vye!
+- [#181](https://github.com/influxdata/telegraf/issues/181): Makefile GOBIN support. Thanks @Vye!
-- [#203](https://github.com/influxdb/telegraf/pull/200): AMQP output. Thanks @ekini!
+- [#203](https://github.com/influxdata/telegraf/pull/200): AMQP output. Thanks @ekini!
-- [#182](https://github.com/influxdb/telegraf/pull/182): OpenTSDB output. Thanks @rplessl!
+- [#182](https://github.com/influxdata/telegraf/pull/182): OpenTSDB output. Thanks @rplessl!
-- [#187](https://github.com/influxdb/telegraf/pull/187): Retry output sink connections on startup.
+- [#187](https://github.com/influxdata/telegraf/pull/187): Retry output sink connections on startup.
-- [#220](https://github.com/influxdb/telegraf/pull/220): Add port tag to apache plugin. Thanks @neezgee!
+- [#220](https://github.com/influxdata/telegraf/pull/220): Add port tag to apache plugin. Thanks @neezgee!
-- [#217](https://github.com/influxdb/telegraf/pull/217): Add filtering for output sinks
+- [#217](https://github.com/influxdata/telegraf/pull/217): Add filtering for output sinks
 and filtering when specifying a config file.
 
 ### Bugfixes
-- [#170](https://github.com/influxdb/telegraf/issues/170): Systemd support
+- [#170](https://github.com/influxdata/telegraf/issues/170): Systemd support
-- [#175](https://github.com/influxdb/telegraf/issues/175): Set write precision before gathering metrics
+- [#175](https://github.com/influxdata/telegraf/issues/175): Set write precision before gathering metrics
-- [#178](https://github.com/influxdb/telegraf/issues/178): redis plugin, multiple server thread hang bug
+- [#178](https://github.com/influxdata/telegraf/issues/178): redis plugin, multiple server thread hang bug
 - Fix net plugin on darwin
-- [#84](https://github.com/influxdb/telegraf/issues/84): Fix docker plugin on CentOS. Thanks @neezgee!
+- [#84](https://github.com/influxdata/telegraf/issues/84): Fix docker plugin on CentOS. Thanks @neezgee!
-- [#189](https://github.com/influxdb/telegraf/pull/189): Fix mem_used_perc. Thanks @mced!
+- [#189](https://github.com/influxdata/telegraf/pull/189): Fix mem_used_perc. Thanks @mced!
-- [#192](https://github.com/influxdb/telegraf/issues/192): Increase compatibility of postgresql plugin. Now supports versions 8.1+
+- [#192](https://github.com/influxdata/telegraf/issues/192): Increase compatibility of postgresql plugin. Now supports versions 8.1+
-- [#203](https://github.com/influxdb/telegraf/issues/203): EL5 rpm support. Thanks @ekini!
+- [#203](https://github.com/influxdata/telegraf/issues/203): EL5 rpm support. Thanks @ekini!
-- [#206](https://github.com/influxdb/telegraf/issues/206): CPU steal/guest values wrong on linux.
+- [#206](https://github.com/influxdata/telegraf/issues/206): CPU steal/guest values wrong on linux.
-- [#212](https://github.com/influxdb/telegraf/issues/212): Add hashbang to postinstall script. Thanks @ekini!
+- [#212](https://github.com/influxdata/telegraf/issues/212): Add hashbang to postinstall script. Thanks @ekini!
-- [#212](https://github.com/influxdb/telegraf/issues/212): Fix makefile warning. Thanks @ekini!
+- [#212](https://github.com/influxdata/telegraf/issues/212): Fix makefile warning. Thanks @ekini!
 
 ## v0.1.8 [2015-09-04]
 
@@ -208,106 +691,106 @@ and filtering when specifying a config file.
 - Now using Go 1.5 to build telegraf
 
 ### Features
-- [#150](https://github.com/influxdb/telegraf/pull/150): Add Host Uptime metric to system plugin
+- [#150](https://github.com/influxdata/telegraf/pull/150): Add Host Uptime metric to system plugin
-- [#158](https://github.com/influxdb/telegraf/pull/158): Apache Plugin. Thanks @KPACHbIuLLIAnO4
+- [#158](https://github.com/influxdata/telegraf/pull/158): Apache Plugin. Thanks @KPACHbIuLLIAnO4
-- [#159](https://github.com/influxdb/telegraf/pull/159): Use second precision for InfluxDB writes
+- [#159](https://github.com/influxdata/telegraf/pull/159): Use second precision for InfluxDB writes
-- [#165](https://github.com/influxdb/telegraf/pull/165): Add additional metrics to mysql plugin. Thanks @nickscript0
+- [#165](https://github.com/influxdata/telegraf/pull/165): Add additional metrics to mysql plugin. Thanks @nickscript0
-- [#162](https://github.com/influxdb/telegraf/pull/162): Write UTC by default, provide option
+- [#162](https://github.com/influxdata/telegraf/pull/162): Write UTC by default, provide option
-- [#166](https://github.com/influxdb/telegraf/pull/166): Upload binaries to S3
+- [#166](https://github.com/influxdata/telegraf/pull/166): Upload binaries to S3
-- [#169](https://github.com/influxdb/telegraf/pull/169): Ping plugin
+- [#169](https://github.com/influxdata/telegraf/pull/169): Ping plugin
 
 ### Bugfixes
 
 ## v0.1.7 [2015-08-28]
 
 ### Features
-- [#38](https://github.com/influxdb/telegraf/pull/38): Kafka output producer.
+- [#38](https://github.com/influxdata/telegraf/pull/38): Kafka output producer.
-- [#133](https://github.com/influxdb/telegraf/pull/133): Add plugin.Gather error logging. Thanks @nickscript0!
+- [#133](https://github.com/influxdata/telegraf/pull/133): Add plugin.Gather error logging. Thanks @nickscript0!
-- [#136](https://github.com/influxdb/telegraf/issues/136): Add a -usage flag for printing usage of a single plugin.
+- [#136](https://github.com/influxdata/telegraf/issues/136): Add a -usage flag for printing usage of a single plugin.
-- [#137](https://github.com/influxdb/telegraf/issues/137): Memcached: fix when a value contains a space
+- [#137](https://github.com/influxdata/telegraf/issues/137): Memcached: fix when a value contains a space
-- [#138](https://github.com/influxdb/telegraf/issues/138): MySQL server address tag.
+- [#138](https://github.com/influxdata/telegraf/issues/138): MySQL server address tag.
-- [#142](https://github.com/influxdb/telegraf/pull/142): Add Description and SampleConfig funcs to output interface
+- [#142](https://github.com/influxdata/telegraf/pull/142): Add Description and SampleConfig funcs to output interface
 - Indent the toml config file for readability
 
 ### Bugfixes
-- [#128](https://github.com/influxdb/telegraf/issues/128): system_load measurement missing.
+- [#128](https://github.com/influxdata/telegraf/issues/128): system_load measurement missing.
-- [#129](https://github.com/influxdb/telegraf/issues/129): Latest pkg url fix.
+- [#129](https://github.com/influxdata/telegraf/issues/129): Latest pkg url fix.
-- [#131](https://github.com/influxdb/telegraf/issues/131): Fix memory reporting on linux & darwin. Thanks @subhachandrachandra!
+- [#131](https://github.com/influxdata/telegraf/issues/131): Fix memory reporting on linux & darwin. Thanks @subhachandrachandra!
-- [#140](https://github.com/influxdb/telegraf/issues/140): Memory plugin prec->perc typo fix. Thanks @brunoqc!
+- [#140](https://github.com/influxdata/telegraf/issues/140): Memory plugin prec->perc typo fix. Thanks @brunoqc!
 
 ## v0.1.6 [2015-08-20]
 
 ### Features
-- [#112](https://github.com/influxdb/telegraf/pull/112): Datadog output. Thanks @jipperinbham!
+- [#112](https://github.com/influxdata/telegraf/pull/112): Datadog output. Thanks @jipperinbham!
-- [#116](https://github.com/influxdb/telegraf/pull/116): Use godep to vendor all dependencies
+- [#116](https://github.com/influxdata/telegraf/pull/116): Use godep to vendor all dependencies
-- [#120](https://github.com/influxdb/telegraf/pull/120): Httpjson plugin. Thanks @jpalay & @alvaromorales!
+- [#120](https://github.com/influxdata/telegraf/pull/120): Httpjson plugin. Thanks @jpalay & @alvaromorales!
 
 ### Bugfixes
-- [#113](https://github.com/influxdb/telegraf/issues/113): Update README with Telegraf/InfluxDB compatibility
+- [#113](https://github.com/influxdata/telegraf/issues/113): Update README with Telegraf/InfluxDB compatibility
-- [#118](https://github.com/influxdb/telegraf/pull/118): Fix for disk usage stats in Windows. Thanks @srfraser!
+- [#118](https://github.com/influxdata/telegraf/pull/118): Fix for disk usage stats in Windows. Thanks @srfraser!
-- [#122](https://github.com/influxdb/telegraf/issues/122): Fix for DiskUsage segv fault. Thanks @srfraser!
+- [#122](https://github.com/influxdata/telegraf/issues/122): Fix for DiskUsage segv fault. Thanks @srfraser!
-- [#126](https://github.com/influxdb/telegraf/issues/126): Nginx plugin not catching net.SplitHostPort error
+- [#126](https://github.com/influxdata/telegraf/issues/126): Nginx plugin not catching net.SplitHostPort error
 
 ## v0.1.5 [2015-08-13]
 
 ### Features
-- [#54](https://github.com/influxdb/telegraf/pull/54): MongoDB plugin. Thanks @jipperinbham!
+- [#54](https://github.com/influxdata/telegraf/pull/54): MongoDB plugin. Thanks @jipperinbham!
-- [#55](https://github.com/influxdb/telegraf/pull/55): Elasticsearch plugin. Thanks @brocaar!
+- [#55](https://github.com/influxdata/telegraf/pull/55): Elasticsearch plugin. Thanks @brocaar!
-- [#71](https://github.com/influxdb/telegraf/pull/71): HAProxy plugin. Thanks @kureikain!
+- [#71](https://github.com/influxdata/telegraf/pull/71): HAProxy plugin. Thanks @kureikain!
-- [#72](https://github.com/influxdb/telegraf/pull/72): Adding TokuDB metrics to MySQL. Thanks vadimtk!
+- [#72](https://github.com/influxdata/telegraf/pull/72): Adding TokuDB metrics to MySQL. Thanks vadimtk!
-- [#73](https://github.com/influxdb/telegraf/pull/73): RabbitMQ plugin. Thanks @ianunruh!
+- [#73](https://github.com/influxdata/telegraf/pull/73): RabbitMQ plugin. Thanks @ianunruh!
-- [#77](https://github.com/influxdb/telegraf/issues/77): Automatically create database.
+- [#77](https://github.com/influxdata/telegraf/issues/77): Automatically create database.
-- [#79](https://github.com/influxdb/telegraf/pull/56): Nginx plugin. Thanks @codeb2cc!
+- [#79](https://github.com/influxdata/telegraf/pull/56): Nginx plugin. Thanks @codeb2cc!
-- [#86](https://github.com/influxdb/telegraf/pull/86): Lustre2 plugin. Thanks srfraser!
+- [#86](https://github.com/influxdata/telegraf/pull/86): Lustre2 plugin. Thanks srfraser!
-- [#91](https://github.com/influxdb/telegraf/pull/91): Unit testing
+- [#91](https://github.com/influxdata/telegraf/pull/91): Unit testing
-- [#92](https://github.com/influxdb/telegraf/pull/92): Exec plugin. Thanks @alvaromorales!
+- [#92](https://github.com/influxdata/telegraf/pull/92): Exec plugin. Thanks @alvaromorales!
-- [#98](https://github.com/influxdb/telegraf/pull/98): LeoFS plugin. Thanks @mocchira!
+- [#98](https://github.com/influxdata/telegraf/pull/98): LeoFS plugin. Thanks @mocchira!
-- [#103](https://github.com/influxdb/telegraf/pull/103): Filter by metric tags. Thanks @srfraser!
+- [#103](https://github.com/influxdata/telegraf/pull/103): Filter by metric tags. Thanks @srfraser!
-- [#106](https://github.com/influxdb/telegraf/pull/106): Options to filter plugins on startup. Thanks @zepouet!
+- [#106](https://github.com/influxdata/telegraf/pull/106): Options to filter plugins on startup. Thanks @zepouet!
-- [#107](https://github.com/influxdb/telegraf/pull/107): Multiple outputs beyong influxdb. Thanks @jipperinbham!
+- [#107](https://github.com/influxdata/telegraf/pull/107): Multiple outputs beyong influxdb. Thanks @jipperinbham!
-- [#108](https://github.com/influxdb/telegraf/issues/108): Support setting per-CPU and total-CPU gathering.
+- [#108](https://github.com/influxdata/telegraf/issues/108): Support setting per-CPU and total-CPU gathering.
-- [#111](https://github.com/influxdb/telegraf/pull/111): Report CPU Usage in cpu plugin. Thanks @jpalay!
+- [#111](https://github.com/influxdata/telegraf/pull/111): Report CPU Usage in cpu plugin. Thanks @jpalay!
 
 ### Bugfixes
-- [#85](https://github.com/influxdb/telegraf/pull/85): Fix GetLocalHost testutil function for mac users
+- [#85](https://github.com/influxdata/telegraf/pull/85): Fix GetLocalHost testutil function for mac users
-- [#89](https://github.com/influxdb/telegraf/pull/89): go fmt fixes
+- [#89](https://github.com/influxdata/telegraf/pull/89): go fmt fixes
-- [#94](https://github.com/influxdb/telegraf/pull/94): Fix for issue #93, explicitly call sarama.v1 -> sarama
+- [#94](https://github.com/influxdata/telegraf/pull/94): Fix for issue #93, explicitly call sarama.v1 -> sarama
-- [#101](https://github.com/influxdb/telegraf/issues/101): switch back from master branch if building locally
+- [#101](https://github.com/influxdata/telegraf/issues/101): switch back from master branch if building locally
-- [#99](https://github.com/influxdb/telegraf/issues/99): update integer output to new InfluxDB line protocol format
+- [#99](https://github.com/influxdata/telegraf/issues/99): update integer output to new InfluxDB line protocol format
 
 ## v0.1.4 [2015-07-09]
 
 ### Features
-- [#56](https://github.com/influxdb/telegraf/pull/56): Update README for Kafka plugin. Thanks @EmilS!
+- [#56](https://github.com/influxdata/telegraf/pull/56): Update README for Kafka plugin. Thanks @EmilS!
 
 ### Bugfixes
-- [#50](https://github.com/influxdb/telegraf/pull/50): Fix init.sh script to use telegraf directory. Thanks @jseriff!
+- [#50](https://github.com/influxdata/telegraf/pull/50): Fix init.sh script to use telegraf directory. Thanks @jseriff!
-- [#52](https://github.com/influxdb/telegraf/pull/52): Update CHANGELOG to reference updated directory. Thanks @benfb!
+- [#52](https://github.com/influxdata/telegraf/pull/52): Update CHANGELOG to reference updated directory. Thanks @benfb!
 
 ## v0.1.3 [2015-07-05]
 
 ### Features
-- [#35](https://github.com/influxdb/telegraf/pull/35): Add Kafka plugin. Thanks @EmilS!
+- [#35](https://github.com/influxdata/telegraf/pull/35): Add Kafka plugin. Thanks @EmilS!
-- [#47](https://github.com/influxdb/telegraf/pull/47): Add RethinkDB plugin. Thanks @jipperinbham!
+- [#47](https://github.com/influxdata/telegraf/pull/47): Add RethinkDB plugin. Thanks @jipperinbham!
 
 ### Bugfixes
-- [#45](https://github.com/influxdb/telegraf/pull/45): Skip disk tags that don't have a value. Thanks @jhofeditz!
+- [#45](https://github.com/influxdata/telegraf/pull/45): Skip disk tags that don't have a value. Thanks @jhofeditz!
-- [#43](https://github.com/influxdb/telegraf/pull/43): Fix bug in MySQL plugin. Thanks @marcosnils!
+- [#43](https://github.com/influxdata/telegraf/pull/43): Fix bug in MySQL plugin. Thanks @marcosnils!
 
 ## v0.1.2 [2015-07-01]
 
 ### Features
-- [#12](https://github.com/influxdb/telegraf/pull/12): Add Linux/ARM to the list of built binaries. Thanks @voxxit!
+- [#12](https://github.com/influxdata/telegraf/pull/12): Add Linux/ARM to the list of built binaries. Thanks @voxxit!
-- [#14](https://github.com/influxdb/telegraf/pull/14): Clarify the S3 buckets that Telegraf is pushed to.
+- [#14](https://github.com/influxdata/telegraf/pull/14): Clarify the S3 buckets that Telegraf is pushed to.
-- [#16](https://github.com/influxdb/telegraf/pull/16): Convert Redis to use URI, support Redis AUTH. Thanks @jipperinbham!
+- [#16](https://github.com/influxdata/telegraf/pull/16): Convert Redis to use URI, support Redis AUTH. Thanks @jipperinbham!
-- [#21](https://github.com/influxdb/telegraf/pull/21): Add memcached plugin. Thanks @Yukki!
+- [#21](https://github.com/influxdata/telegraf/pull/21): Add memcached plugin. Thanks @Yukki!
 
 ### Bugfixes
-- [#13](https://github.com/influxdb/telegraf/pull/13): Fix the packaging script.
+- [#13](https://github.com/influxdata/telegraf/pull/13): Fix the packaging script.
-- [#19](https://github.com/influxdb/telegraf/pull/19): Add host name to metric tags. Thanks @sherifzain!
+- [#19](https://github.com/influxdata/telegraf/pull/19): Add host name to metric tags. Thanks @sherifzain!
-- [#20](https://github.com/influxdb/telegraf/pull/20): Fix race condition with accumulator mutex. Thanks @nkatsaros!
+- [#20](https://github.com/influxdata/telegraf/pull/20): Fix race condition with accumulator mutex. Thanks @nkatsaros!
-- [#23](https://github.com/influxdb/telegraf/pull/23): Change name of folder for packages. Thanks @colinrymer!
+- [#23](https://github.com/influxdata/telegraf/pull/23): Change name of folder for packages. Thanks @colinrymer!
-- [#32](https://github.com/influxdb/telegraf/pull/32): Fix spelling of memoory -> memory. Thanks @tylernisonoff!
+- [#32](https://github.com/influxdata/telegraf/pull/32): Fix spelling of memoory -> memory. Thanks @tylernisonoff!
 
 ## v0.1.1 [2015-06-19]
 

CONTRIBUTING.md

@@ -1,103 +1,72 @@
+## Steps for Contributing:
+
+1. [Sign the CLA](http://influxdb.com/community/cla.html)
+1. Make changes or write plugin (see below for details)
+1. Add your plugin to `plugins/inputs/all/all.go` or `plugins/outputs/all/all.go`
+1. If your plugin requires a new Go package,
+[add it](https://github.com/influxdata/telegraf/blob/master/CONTRIBUTING.md#adding-a-dependency)
+1. Write a README for your plugin, if it's an input plugin, it should be structured
+like the [input example here](https://github.com/influxdata/telegraf/blob/master/plugins/inputs/EXAMPLE_README.md).
+Output plugins READMEs are less structured,
+but any information you can provide on how the data will look is appreciated.
+See the [OpenTSDB output](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/opentsdb)
+for a good example.
+
+## GoDoc
+
+Public interfaces for inputs, outputs, metrics, and the accumulator can be found
+on the GoDoc
+
+[![GoDoc](https://godoc.org/github.com/influxdata/telegraf?status.svg)](https://godoc.org/github.com/influxdata/telegraf)
+
 ## Sign the CLA
 
 Before we can merge a pull request, you will need to sign the CLA,
 which can be found [on our website](http://influxdb.com/community/cla.html)
 
-## Plugins
+## Adding a dependency
 
-This section is for developers who want to create new collection plugins.
+Assuming you can already build the project, run these in the telegraf directory:
+
+1. `go get github.com/sparrc/gdm`
+1. `gdm restore`
+1. `gdm save`
+
+## Input Plugins
+
+This section is for developers who want to create new collection inputs.
 Telegraf is entirely plugin driven. This interface allows for operators to
-pick and chose what is gathered as well as makes it easy for developers
+pick and chose what is gathered and makes it easy for developers
 to create new ways of generating metrics.
 
 Plugin authorship is kept as simple as possible to promote people to develop
-and submit new plugins.
+and submit new inputs.
 
-### Plugin Guidelines
+### Input Plugin Guidelines
 
-* A plugin must conform to the `plugins.Plugin` interface.
+* A plugin must conform to the `telegraf.Input` interface.
-* Each generated metric automatically has the name of the plugin that generated
+* Input Plugins should call `inputs.Add` in their `init` function to register themselves.
-it prepended. This is to keep plugins honest.
-* Plugins should call `plugins.Add` in their `init` function to register themselves.
 See below for a quick example.
-* To be available within Telegraf itself, plugins must add themselves to the
+* Input Plugins must be added to the
-`github.com/influxdb/telegraf/plugins/all/all.go` file.
+`github.com/influxdata/telegraf/plugins/inputs/all/all.go` file.
 * The `SampleConfig` function should return valid toml that describes how the
 plugin can be configured. This is include in `telegraf -sample-config`.
 * The `Description` function should say in one line what this plugin does.
 
-### Plugin interface
+Let's say you've written a plugin that emits metrics about processes on the
+current host.
 
-```go
+### Input Plugin Example
-type Plugin interface {
-    SampleConfig() string
-    Description() string
-    Gather(Accumulator) error
-}
-
-type Accumulator interface {
-    Add(measurement string,
-        value interface{},
-        tags map[string]string,
-        timestamp ...time.Time)
-    AddFields(measurement string,
-        fields map[string]interface{},
-        tags map[string]string,
-        timestamp ...time.Time)
-}
-```
-
-### Accumulator
-
-The way that a plugin emits metrics is by interacting with the Accumulator.
-
-The `Add` function takes 3 arguments:
-* **measurement**: A string description of the metric. For instance `bytes_read` or `faults`.
-* **value**: A value for the metric. This accepts 5 different types of value:
-  * **int**: The most common type. All int types are accepted but favor using `int64`
-  Useful for counters, etc.
-  * **float**: Favor `float64`, useful for gauges, percentages, etc.
-  * **bool**: `true` or `false`, useful to indicate the presence of a state. `light_on`, etc.
-  * **string**: Typically used to indicate a message, or some kind of freeform information.
-  * **time.Time**: Useful for indicating when a state last occurred, for instance `light_on_since`.
-* **tags**: This is a map of strings to strings to describe the where or who
-about the metric. For instance, the `net` plugin adds a tag named `"interface"`
-set to the name of the network interface, like `"eth0"`.
-
-The `AddFieldsWithTime` allows multiple values for a point to be passed. The values
-used are the same type profile as **value** above. The **timestamp** argument
-allows a point to be registered as having occurred at an arbitrary time.
-
-Let's say you've written a plugin that emits metrics about processes on the current host.
-
-```go
-
-type Process struct {
-    CPUTime float64
-    MemoryBytes int64
-    PID int
-}
-
-func Gather(acc plugins.Accumulator) error {
-    for _, process := range system.Processes() {
-        tags := map[string]string {
-            "pid": fmt.Sprintf("%d", process.Pid),
-        }
-
-        acc.Add("cpu", process.CPUTime, tags, time.Now())
-        acc.Add("memory", process.MemoryBytes, tags, time.Now())
-    }
-}
-```
-
-### Plugin Example
 
 ```go
 package simple
 
 // simple.go
 
-import "github.com/influxdb/telegraf/plugins"
+import (
+    "github.com/influxdata/telegraf"
+    "github.com/influxdata/telegraf/plugins/inputs"
+)
 
 type Simple struct {
     Ok bool
@@ -111,7 +80,7 @@ func (s *Simple) SampleConfig() string {
     return "ok = true # indicate if everything is fine"
 }
 
-func (s *Simple) Gather(acc plugins.Accumulator) error {
+func (s *Simple) Gather(acc telegraf.Accumulator) error {
     if s.Ok {
         acc.Add("state", "pretty good", nil)
     } else {
@@ -122,19 +91,65 @@ func (s *Simple) Gather(acc plugins.Accumulator) error {
 }
 
 func init() {
-    plugins.Add("simple", func() plugins.Plugin { return &Simple{} })
+    inputs.Add("simple", func() telegraf.Input { return &Simple{} })
 }
 ```
 
-## Service Plugins
+## Input Plugins Accepting Arbitrary Data Formats
+
+Some input plugins (such as
+[exec](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/exec))
+accept arbitrary input data formats. An overview of these data formats can
+be found
+[here](https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md).
+
+In order to enable this, you must specify a `SetParser(parser parsers.Parser)`
+function on the plugin object (see the exec plugin for an example), as well as
+defining `parser` as a field of the object.
+
+You can then utilize the parser internally in your plugin, parsing data as you
+see fit. Telegraf's configuration layer will take care of instantiating and
+creating the `Parser` object.
+
+You should also add the following to your SampleConfig() return:
+
+```toml
+  ## Data format to consume. 
+  ## Each data format has it's own unique set of configuration options, read
+  ## more about them here:
+  ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md
+  data_format = "influx"
+```
+
+Below is the `Parser` interface.
+
+```go
+// Parser is an interface defining functions that a parser plugin must satisfy.
+type Parser interface {
+    // Parse takes a byte buffer separated by newlines
+    // ie, `cpu.usage.idle 90\ncpu.usage.busy 10`
+    // and parses it into telegraf metrics
+    Parse(buf []byte) ([]telegraf.Metric, error)
+
+    // ParseLine takes a single string metric
+    // ie, "cpu.usage.idle 90"
+    // and parses it into a telegraf metric.
+    ParseLine(line string) (telegraf.Metric, error)
+}
+```
+
+And you can view the code
+[here.](https://github.com/influxdata/telegraf/blob/henrypfhu-master/plugins/parsers/registry.go)
+
+## Service Input Plugins
 
 This section is for developers who want to create new "service" collection
-plugins. A service plugin differs from a regular plugin in that it operates
+inputs. A service plugin differs from a regular plugin in that it operates
 a background service while Telegraf is running. One example would be the `statsd`
 plugin, which operates a statsd server.
 
-Service Plugins are substantially more complicated than a regular plugin, as they
+Service Input Plugins are substantially more complicated than a regular plugin, as they
-will require threads and locks to verify data integrity. Service Plugins should
+will require threads and locks to verify data integrity. Service Input Plugins should
 be avoided unless there is no way to create their behavior with a regular plugin.
 
 Their interface is quite similar to a regular plugin, with the addition of `Start()`
@@ -143,49 +158,25 @@ and `Stop()` methods.
 ### Service Plugin Guidelines
 
 * Same as the `Plugin` guidelines, except that they must conform to the
-`plugins.ServicePlugin` interface.
+`inputs.ServiceInput` interface.
 
-### Service Plugin interface
+## Output Plugins
-
-```go
-type ServicePlugin interface {
-    SampleConfig() string
-    Description() string
-    Gather(Accumulator) error
-    Start() error
-    Stop()
-}
-```
-
-## Outputs
 
 This section is for developers who want to create a new output sink. Outputs
 are created in a similar manner as collection plugins, and their interface has
 similar constructs.
 
-### Output Guidelines
+### Output Plugin Guidelines
 
 * An output must conform to the `outputs.Output` interface.
 * Outputs should call `outputs.Add` in their `init` function to register themselves.
 See below for a quick example.
 * To be available within Telegraf itself, plugins must add themselves to the
-`github.com/influxdb/telegraf/outputs/all/all.go` file.
+`github.com/influxdata/telegraf/plugins/outputs/all/all.go` file.
 * The `SampleConfig` function should return valid toml that describes how the
 output can be configured. This is include in `telegraf -sample-config`.
 * The `Description` function should say in one line what this output does.
 
-### Output interface
-
-```go
-type Output interface {
-    Connect() error
-    Close() error
-    Description() string
-    SampleConfig() string
-    Write(points []*client.Point) error
-}
-```
-
 ### Output Example
 
 ```go
@@ -193,7 +184,10 @@ package simpleoutput
 
 // simpleoutput.go
 
-import "github.com/influxdb/telegraf/outputs"
+import (
+    "github.com/influxdata/telegraf"
+    "github.com/influxdata/telegraf/plugins/outputs"
+)
 
 type Simple struct {
     Ok bool
@@ -217,20 +211,47 @@ func (s *Simple) Close() error {
     return nil
 }
 
-func (s *Simple) Write(points []*client.Point) error {
+func (s *Simple) Write(metrics []telegraf.Metric) error {
-    for _, pt := range points {
+    for _, metric := range metrics {
-        // write `pt` to the output sink here
+        // write `metric` to the output sink here
     }
     return nil
 }
 
 func init() {
-    outputs.Add("simpleoutput", func() outputs.Output { return &Simple{} })
+    outputs.Add("simpleoutput", func() telegraf.Output { return &Simple{} })
 }
 
 ```
 
-## Service Outputs
+## Output Plugins Writing Arbitrary Data Formats
+
+Some output plugins (such as
+[file](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/file))
+can write arbitrary output data formats. An overview of these data formats can
+be found
+[here](https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_OUTPUT.md).
+
+In order to enable this, you must specify a
+`SetSerializer(serializer serializers.Serializer)`
+function on the plugin object (see the file plugin for an example), as well as
+defining `serializer` as a field of the object.
+
+You can then utilize the serializer internally in your plugin, serializing data
+before it's written. Telegraf's configuration layer will take care of
+instantiating and creating the `Serializer` object.
+
+You should also add the following to your SampleConfig() return:
+
+```toml
+  ## Data format to output. 
+  ## Each data format has it's own unique set of configuration options, read
+  ## more about them here:
+  ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_OUTPUT.md
+  data_format = "influx"
+```
+
+## Service Output Plugins
 
 This section is for developers who want to create new "service" output. A
 service output differs from a regular output in that it operates a background service
@@ -243,21 +264,7 @@ and `Stop()` methods.
 ### Service Output Guidelines
 
 * Same as the `Output` guidelines, except that they must conform to the
-`plugins.ServiceOutput` interface.
+`output.ServiceOutput` interface.
-
-### Service Output interface
-
-```go
-type ServiceOutput interface {
-    Connect() error
-    Close() error
-    Description() string
-    SampleConfig() string
-    Write(points []*client.Point) error
-    Start() error
-    Stop()
-}
-```
 
 ## Unit Tests
 
@@ -274,7 +281,7 @@ which would take some time to replicate.
 To overcome this situation we've decided to use docker containers to provide a
 fast and reproducible environment to test those services which require it.
 For other situations
-(i.e: https://github.com/influxdb/telegraf/blob/master/plugins/redis/redis_test.go )
+(i.e: https://github.com/influxdata/telegraf/blob/master/plugins/inputs/redis/redis_test.go)
 a simple mock will suffice.
 
 To execute Telegraf tests follow these simple steps:

Godeps

@@ -1,52 +1,59 @@
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Godeps_windows

@@ -0,0 +1,59 @@
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+github.com/nsqio/go-nsq 0b80d6f05e15ca1930e0c5e1d540ed627e299980
+github.com/prometheus/client_golang 18acf9993a863f4c4b40612e19cdd243e7c86831
+github.com/prometheus/client_model fa8ad6fec33561be4280a8f0514318c79d7f6cb6
+github.com/prometheus/common e8eabff8812b05acf522b45fdcd725a785188e37
+github.com/prometheus/procfs 406e5b7bfd8201a36e2bb5f7bdae0b03380c2ce8
+github.com/samuel/go-zookeeper 218e9c81c0dd8b3b18172b2bbfad92cc7d6db55f
+github.com/shirou/gopsutil 1f32ce1bb380845be7f5d174ac641a2c592c0c42
+github.com/shirou/w32 ada3ba68f000aa1b58580e45c9d308fe0b7fc5c5
+github.com/soniah/gosnmp b1b4f885b12c5dcbd021c5cee1c904110de6db7d
+github.com/streadway/amqp b4f3ceab0337f013208d31348b578d83c0064744
+github.com/stretchr/testify 1f4a1643a57e798696635ea4c126e9127adb7d3c
+github.com/wvanbergen/kafka 46f9a1cf3f670edec492029fadded9c2d9e18866
+github.com/wvanbergen/kazoo-go 0f768712ae6f76454f987c3356177e138df258f8
+github.com/zensqlmonitor/go-mssqldb ffe5510c6fa5e15e6d983210ab501c815b56b363
+golang.org/x/net 6acef71eb69611914f7a30939ea9f6e194c78172
+golang.org/x/text a71fd10341b064c10f4a81ceac72bcf70f26ea34
+gopkg.in/dancannon/gorethink.v1 7d1af5be49cb5ecc7b177bf387d232050299d6ef
+gopkg.in/fatih/pool.v2 cba550ebf9bce999a02e963296d4bc7a486cb715
+gopkg.in/mgo.v2 d90005c5262a3463800497ea5a89aed5fe22c886
+gopkg.in/yaml.v2 a83829b6f1293c91addabc89d0571c246397bbf4

Makefile

@@ -9,36 +9,41 @@ endif
 # Standard Telegraf build
 default: prepare build
 
+# Windows build
+windows: prepare-windows build-windows
+
 # Only run the build (no dependency grabbing)
 build:
-	go build -o telegraf -ldflags \
+	go install -ldflags "-X main.version=$(VERSION)" ./...
-		"-X main.Version=$(VERSION)" \
+
+build-windows:
+	go build -o telegraf.exe -ldflags \
+		"-X main.version=$(VERSION)" \
 		./cmd/telegraf/telegraf.go
 
+build-for-docker:
+	CGO_ENABLED=0 GOOS=linux go build -installsuffix cgo -o telegraf -ldflags \
+					"-s -X main.version=$(VERSION)" \
+					./cmd/telegraf/telegraf.go
+
 # Build with race detector
 dev: prepare
-	go build -race -o telegraf -ldflags \
+	go build -race -ldflags "-X main.version=$(VERSION)" ./...
-		"-X main.Version=$(VERSION)" \
-		./cmd/telegraf/telegraf.go
 
-# Build linux 64-bit, 32-bit and arm architectures
+# run package script
-build-linux-bins: prepare
+package:
-	GOARCH=amd64 GOOS=linux go build -o telegraf_linux_amd64 \
+	./scripts/build.py --package --version="$(VERSION)" --platform=linux --arch=all --upload
-								-ldflags "-X main.Version=$(VERSION)" \
-								./cmd/telegraf/telegraf.go
-	GOARCH=386 GOOS=linux go build -o telegraf_linux_386 \
-								-ldflags "-X main.Version=$(VERSION)" \
-								./cmd/telegraf/telegraf.go
-	GOARCH=arm GOOS=linux go build -o telegraf_linux_arm \
-								-ldflags "-X main.Version=$(VERSION)" \
-								./cmd/telegraf/telegraf.go
 
 # Get dependencies and use gdm to checkout changesets
 prepare:
-	go get ./...
 	go get github.com/sparrc/gdm
 	gdm restore
 
+# Use the windows godeps file to prepare dependencies
+prepare-windows:
+	go get github.com/sparrc/gdm
+	gdm restore -f Godeps_windows
+
 # Run all docker containers necessary for unit tests
 docker-run:
 ifeq ($(UNAME), Darwin)
@@ -59,12 +64,12 @@ endif
 	docker run --name memcached -p "11211:11211" -d memcached
 	docker run --name postgres -p "5432:5432" -d postgres
 	docker run --name rabbitmq -p "15672:15672" -p "5672:5672" -d rabbitmq:3-management
-	docker run --name opentsdb -p "4242:4242" -d petergrace/opentsdb-docker
 	docker run --name redis -p "6379:6379" -d redis
 	docker run --name aerospike -p "3000:3000" -d aerospike
 	docker run --name nsq -p "4150:4150" -d nsqio/nsq /nsqd
 	docker run --name mqtt -p "1883:1883" -d ncarlier/mqtt
 	docker run --name riemann -p "5555:5555" -d blalor/riemann
+	docker run --name snmp -p "31161:31161/udp" -d titilambert/snmpsim
 
 # Run docker containers necessary for CircleCI unit tests
 docker-run-circle:
@@ -73,26 +78,29 @@ docker-run-circle:
 		-e ADVERTISED_PORT=9092 \
 		-p "2181:2181" -p "9092:9092" \
 		-d spotify/kafka
-	docker run --name opentsdb -p "4242:4242" -d petergrace/opentsdb-docker
 	docker run --name aerospike -p "3000:3000" -d aerospike
 	docker run --name nsq -p "4150:4150" -d nsqio/nsq /nsqd
 	docker run --name mqtt -p "1883:1883" -d ncarlier/mqtt
 	docker run --name riemann -p "5555:5555" -d blalor/riemann
+	docker run --name snmp -p "31161:31161/udp" -d titilambert/snmpsim
 
 # Kill all docker containers, ignore errors
 docker-kill:
-	-docker kill nsq aerospike redis opentsdb rabbitmq postgres memcached mysql kafka mqtt riemann
+	-docker kill nsq aerospike redis rabbitmq postgres memcached mysql kafka mqtt riemann snmp
-	-docker rm nsq aerospike redis opentsdb rabbitmq postgres memcached mysql kafka mqtt riemann
+	-docker rm nsq aerospike redis rabbitmq postgres memcached mysql kafka mqtt riemann snmp
 
 # Run full unit tests using docker containers (includes setup and teardown)
-test: docker-kill docker-run
+test: vet docker-kill docker-run
 	# Sleeping for kafka leadership election, TSDB setup, etc.
 	sleep 60
 	# SUCCESS, running tests
 	go test -race ./...
 
 # Run "short" unit tests
-test-short:
+test-short: vet
 	go test -short ./...
 
-.PHONY: test
+vet:
+	go vet ./...
+
+.PHONY: test test-short vet build default

README.md

@@ -1,48 +1,63 @@
-# Telegraf - A native agent for InfluxDB [![Circle CI](https://circleci.com/gh/influxdb/telegraf.svg?style=svg)](https://circleci.com/gh/influxdb/telegraf)
+# Telegraf [![Circle CI](https://circleci.com/gh/influxdata/telegraf.svg?style=svg)](https://circleci.com/gh/influxdata/telegraf) [![Docker pulls](https://img.shields.io/docker/pulls/library/telegraf.svg)](https://hub.docker.com/_/telegraf/)
 
 Telegraf is an agent written in Go for collecting metrics from the system it's
-running on, or from other services, and writing them into InfluxDB.
+running on, or from other services, and writing them into InfluxDB or other
+[outputs](https://github.com/influxdata/telegraf#supported-output-plugins).
 
 Design goals are to have a minimal memory footprint with a plugin system so
 that developers in the community can easily add support for collecting metrics
 from well known services (like Hadoop, Postgres, or Redis) and third party
 APIs (like Mailchimp, AWS CloudWatch, or Google Analytics).
 
-We'll eagerly accept pull requests for new plugins and will manage the set of
+New input and output plugins are designed to be easy to contribute,
-plugins that Telegraf supports. See the
+we'll eagerly accept pull
-[contributing guide](CONTRIBUTING.md) for instructions on
+requests and will manage the set of plugins that Telegraf supports.
-writing new plugins.
+See the [contributing guide](CONTRIBUTING.md) for instructions on writing
+new plugins.
 
 ## Installation:
 
-### Linux deb and rpm packages:
+### Linux deb and rpm Packages:
 
 Latest:
-* http://get.influxdb.org/telegraf/telegraf_0.2.4_amd64.deb
+* https://dl.influxdata.com/telegraf/releases/telegraf_1.0.0-beta1_amd64.deb
-* http://get.influxdb.org/telegraf/telegraf-0.2.4-1.x86_64.rpm
+* https://dl.influxdata.com/telegraf/releases/telegraf-1.0.0_beta1.x86_64.rpm
 
-##### Package instructions:
+Latest (arm):
+* https://dl.influxdata.com/telegraf/releases/telegraf_1.0.0-beta1_armhf.deb
+* https://dl.influxdata.com/telegraf/releases/telegraf-1.0.0_beta1.armhf.rpm
 
-* Telegraf binary is installed in `/opt/telegraf/telegraf`
+##### Package Instructions:
-* Telegraf daemon configuration file is in `/etc/opt/telegraf/telegraf.conf`
+
+* Telegraf binary is installed in `/usr/bin/telegraf`
+* Telegraf daemon configuration file is in `/etc/telegraf/telegraf.conf`
 * On sysv systems, the telegraf daemon can be controlled via
 `service telegraf [action]`
 * On systemd systems (such as Ubuntu 15+), the telegraf daemon can be
 controlled via `systemctl [action] telegraf`
 
-### Linux binaries:
+### yum/apt Repositories:
+
+There is a yum/apt repo available for the whole InfluxData stack, see
+[here](https://docs.influxdata.com/influxdb/v0.10/introduction/installation/#installation)
+for instructions on setting up the repo. Once it is configured, you will be able
+to use this repo to install & update telegraf.
+
+### Linux tarballs:
 
 Latest:
-* http://get.influxdb.org/telegraf/telegraf_linux_amd64_0.2.4.tar.gz
+* https://dl.influxdata.com/telegraf/releases/telegraf-1.0.0-beta1_linux_amd64.tar.gz
-* http://get.influxdb.org/telegraf/telegraf_linux_386_0.2.4.tar.gz
+* https://dl.influxdata.com/telegraf/releases/telegraf-1.0.0-beta1_linux_i386.tar.gz
-* http://get.influxdb.org/telegraf/telegraf_linux_arm_0.2.4.tar.gz
+* https://dl.influxdata.com/telegraf/releases/telegraf-1.0.0-beta1_linux_armhf.tar.gz
 
-##### Binary instructions:
+### FreeBSD tarball:
 
-These are standalone binaries that can be unpacked and executed on any linux
+Latest:
-system. They can be unpacked and renamed in a location such as
+* https://dl.influxdata.com/telegraf/releases/telegraf-1.0.0-beta1_freebsd_amd64.tar.gz
-`/usr/local/bin` for convenience. A config file will need to be generated,
+
-see "How to use it" below.
+### Ansible Role:
+
+Ansible role: https://github.com/rossmcdonald/telegraf
 
 ### OSX via Homebrew:
 
@@ -51,244 +66,185 @@ brew update
 brew install telegraf
 ```
 
+### Windows Binaries (EXPERIMENTAL)
+
+Latest:
+* https://dl.influxdata.com/telegraf/releases/telegraf-1.0.0-beta1_windows_amd64.zip
+
 ### From Source:
 
 Telegraf manages dependencies via [gdm](https://github.com/sparrc/gdm),
 which gets installed via the Makefile
-if you don't have it already. You also must build with golang version 1.4+.
+if you don't have it already. You also must build with golang version 1.5+.
 
 1. [Install Go](https://golang.org/doc/install)
 2. [Setup your GOPATH](https://golang.org/doc/code.html#GOPATH)
-3. Run `go get github.com/influxdb/telegraf`
+3. Run `go get github.com/influxdata/telegraf`
-4. Run `cd $GOPATH/src/github.com/influxdb/telegraf`
+4. Run `cd $GOPATH/src/github.com/influxdata/telegraf`
 5. Run `make`
 
-### How to use it:
+## How to use it:
 
-* Run `telegraf -sample-config > telegraf.conf` to create an initial configuration.
+```console
-* Or run `telegraf -sample-config -filter cpu:mem -outputfilter influxdb > telegraf.conf`.
+$ telegraf -help
-to create a config file with only CPU and memory plugins defined, and InfluxDB
+Telegraf, The plugin-driven server agent for collecting and reporting metrics.
-output defined.
-* Edit the configuration to match your needs.
-* Run `telegraf -config telegraf.conf -test` to output one full measurement
-sample to STDOUT. NOTE: you may want to run as the telegraf user if you are using
-the linux packages `sudo -u telegraf telegraf -config telegraf.conf -test`
-* Run `telegraf -config telegraf.conf` to gather and send metrics to configured outputs.
-* Run `telegraf -config telegraf.conf -filter system:swap`.
-to run telegraf with only the system & swap plugins defined in the config.
 
-## Telegraf Options
+Usage:
 
-Telegraf has a few options you can configure under the `agent` section of the
+  telegraf <flags>
-config.
 
-* **hostname**: The hostname is passed as a tag. By default this will be
+The flags are:
-the value returned by `hostname` on the machine running Telegraf.
-You can override that value here.
-* **interval**: How often to gather metrics. Uses a simple number +
-unit parser, e.g. "10s" for 10 seconds or "5m" for 5 minutes.
-* **debug**: Set to true to gather and send metrics to STDOUT as well as
-InfluxDB.
 
-## Plugin Options
+  -config <file>     configuration file to load
+  -test              gather metrics once, print them to stdout, and exit
+  -sample-config     print out full sample configuration to stdout
+  -config-directory  directory containing additional *.conf files
+  -input-filter      filter the input plugins to enable, separator is :
+  -output-filter     filter the output plugins to enable, separator is :
+  -usage             print usage for a plugin, ie, 'telegraf -usage mysql'
+  -debug             print metrics as they're generated to stdout
+  -quiet             run in quiet mode
+  -version           print the version to stdout
 
-There are 5 configuration options that are configurable per plugin:
+Examples:
 
-* **pass**: An array of strings that is used to filter metrics generated by the
+  # generate a telegraf config file:
-current plugin. Each string in the array is tested as a glob match against metric names
+  telegraf -sample-config > telegraf.conf
-and if it matches, the metric is emitted.
-* **drop**: The inverse of pass, if a metric name matches, it is not emitted.
-* **tagpass**: tag names and arrays of strings that are used to filter metrics by the current plugin. Each string in the array is tested as a glob match against
-the tag name, and if it matches the metric is emitted.
-* **tagdrop**: The inverse of tagpass. If a tag matches, the metric is not emitted.
-This is tested on metrics that have passed the tagpass test.
-* **interval**: How often to gather this metric. Normal plugins use a single
-global interval, but if one particular plugin should be run less or more often,
-you can configure that here.
 
-### Plugin Configuration Examples
+  # generate config with only cpu input & influxdb output plugins defined
+  telegraf -sample-config -input-filter cpu -output-filter influxdb
 
-This is a full working config that will output CPU data to an InfluxDB instance
+  # run a single telegraf collection, outputing metrics to stdout
-at 192.168.59.103:8086, tagging measurements with dc="denver-1". It will output
+  telegraf -config telegraf.conf -test
-measurements at a 10s interval and will collect per-cpu data, dropping any
-measurements which begin with `cpu_time`.
 
-```toml
+  # run telegraf with all plugins defined in config file
-[tags]
+  telegraf -config telegraf.conf
-  dc = "denver-1"
 
-[agent]
+  # run telegraf, enabling the cpu & memory input, and influxdb output plugins
-  interval = "10s"
+  telegraf -config telegraf.conf -input-filter cpu:mem -output-filter influxdb
-
-# OUTPUTS
-[outputs]
-[[outputs.influxdb]]
-  url = "http://192.168.59.103:8086" # required.
-  database = "telegraf" # required.
-  precision = "s"
-
-# PLUGINS
-[plugins]
-[[plugins.cpu]]
-  percpu = true
-  totalcpu = false
-  drop = ["cpu_time*"]
 ```
 
-Below is how to configure `tagpass` and `tagdrop` parameters
+## Configuration
 
-```toml
+See the [configuration guide](docs/CONFIGURATION.md) for a rundown of the more advanced
-[plugins]
+configuration options.
-[[plugins.cpu]]
-  percpu = true
-  totalcpu = false
-  drop = ["cpu_time"]
-  # Don't collect CPU data for cpu6 & cpu7
-  [plugins.cpu.tagdrop]
-    cpu = [ "cpu6", "cpu7" ]
 
-[[plugins.disk]]
+## Supported Input Plugins
-  [plugins.disk.tagpass]
-    # tagpass conditions are OR, not AND.
-    # If the (filesystem is ext4 or xfs) OR (the path is /opt or /home)
-    # then the metric passes
-    fstype = [ "ext4", "xfs" ]
-    # Globs can also be used on the tag values
-    path = [ "/opt", "/home*" ]
-```
 
-Below is how to configure `pass` and `drop` parameters
+Telegraf currently has support for collecting metrics from many sources. For
+more information on each, please look at the directory of the same name in
+`plugins/inputs`.
 
-```toml
+Currently implemented sources:
-# Drop all metrics for guest CPU usage
-[[plugins.cpu]]
-  drop = [ "cpu_usage_guest" ]
 
-# Only store inode related metrics for disks
+* [aws cloudwatch](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/cloudwatch)
-[[plugins.disk]]
+* [aerospike](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/aerospike)
-  pass = [ "disk_inodes*" ]
+* [apache](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/apache)
-```
+* [bcache](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/bcache)
-
+* [cassandra](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/cassandra)
-
+* [ceph](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/ceph)
-Additional plugins (or outputs) of the same type can be specified,
+* [chrony](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/chrony)
-just define more instances in the config file:
+* [consul](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/consul)
-
+* [conntrack](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/conntrack)
-```toml
+* [couchbase](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/couchbase)
-[[plugins.cpu]]
+* [couchdb](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/couchdb)
-  percpu = false
+* [disque](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/disque)
-  totalcpu = true
+* [dns query time](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/dns_query)
-
+* [docker](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/docker)
-[[plugins.cpu]]
+* [dovecot](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/dovecot)
-  percpu = true
+* [elasticsearch](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/elasticsearch)
-  totalcpu = false
+* [exec](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/exec) (generic executable plugin, support JSON, influx, graphite and nagios)
-  drop = ["cpu_time*"]
+* [filestat](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/filestat)
-```
+* [haproxy](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/haproxy)
-
+* [http_response](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/http_response)
-## Supported Plugins
+* [httpjson](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/httpjson) (generic JSON-emitting http service plugin)
-
+* [influxdb](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/influxdb)
-**You can view usage instructions for each plugin by running**
+* [ipmi_sensor](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/ipmi_sensor)
-`telegraf -usage <pluginname>`.
+* [jolokia](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/jolokia)
-
+* [leofs](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/leofs)
-Telegraf currently has support for collecting metrics from:
+* [lustre2](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/lustre2)
-
+* [mailchimp](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/mailchimp)
-* aerospike
+* [memcached](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/memcached)
-* apache
+* [mesos](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/mesos)
-* bcache
+* [mongodb](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/mongodb)
-* disque
+* [mysql](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/mysql)
-* elasticsearch
+* [net_response](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/net_response)
-* exec (generic JSON-emitting executable plugin)
+* [nginx](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/nginx)
-* haproxy
+* [nsq](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/nsq)
-* httpjson (generic JSON-emitting http service plugin)
+* [nstat](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/nstat)
-* influxdb
+* [ntpq](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/ntpq)
-* jolokia (remote JMX with JSON over HTTP)
+* [phpfpm](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/phpfpm)
-* leofs
+* [phusion passenger](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/passenger)
-* lustre2
+* [ping](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/ping)
-* mailchimp
+* [postgresql](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/postgresql)
-* memcached
+* [postgresql_extensible](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/postgresql_extensible)
-* mongodb
+* [powerdns](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/powerdns)
-* mysql
+* [procstat](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/procstat)
-* nginx
+* [prometheus](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/prometheus)
-* phpfpm
+* [puppetagent](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/puppetagent)
-* ping
+* [rabbitmq](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/rabbitmq)
-* postgresql
+* [raindrops](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/raindrops)
-* procstat
+* [redis](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/redis)
-* prometheus
+* [rethinkdb](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/rethinkdb)
-* puppetagent
+* [riak](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/riak)
-* rabbitmq
+* [sensors ](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/sensors) (only available if built from source)
-* redis
+* [snmp](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/snmp)
-* rethinkdb
+* [sql server](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/sqlserver) (microsoft)
-* twemproxy
+* [twemproxy](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/twemproxy)
-* zfs
+* [varnish](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/varnish)
-* zookeeper
+* [zfs](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/zfs)
-* system
+* [zookeeper](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/zookeeper)
+* [win_perf_counters ](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/win_perf_counters) (windows performance counters)
+* [sysstat](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/sysstat)
+* [system](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/system)
     * cpu
     * mem
-    * io
     * net
     * netstat
     * disk
+    * diskio
     * swap
+    * processes
+    * kernel (/proc/stat)
+    * kernel (/proc/vmstat)
 
-## Supported Service Plugins
+Telegraf can also collect metrics via the following service plugins:
 
-Telegraf can collect metrics via the following services:
+* [statsd](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/statsd)
-
+* [tail](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/tail)
-* statsd
+* [udp_listener](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/udp_listener)
-* kafka_consumer
+* [tcp_listener](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/tcp_listener)
+* [mqtt_consumer](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/mqtt_consumer)
+* [kafka_consumer](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/kafka_consumer)
+* [nats_consumer](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/nats_consumer)
+* [github_webhooks](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/github_webhooks)
+* [rollbar_webhooks](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/rollbar_webhooks)
 
 We'll be adding support for many more over the coming months. Read on if you
 want to add support for another service or third-party API.
 
-## Output options
+## Supported Output Plugins
 
-Telegraf also supports specifying multiple output sinks to send data to,
+* [influxdb](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/influxdb)
-configuring each output sink is different, but examples can be
+* [amon](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/amon)
-found by running `telegraf -sample-config`.
+* [amqp](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/amqp)
-
+* [aws kinesis](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/kinesis)
-Outputs also support the same configurable options as plugins
+* [aws cloudwatch](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/cloudwatch)
-(pass, drop, tagpass, tagdrop), added in 0.2.4
+* [datadog](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/datadog)
-
+* [file](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/file)
-```toml
+* [graphite](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/graphite)
-[[outputs.influxdb]]
+* [graylog](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/graylog)
-  urls = [ "http://localhost:8086" ]
+* [instrumental](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/instrumental)
-  database = "telegraf"
+* [kafka](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/kafka)
-  precision = "s"
+* [librato](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/librato)
-  # Drop all measurements that start with "aerospike"
+* [mqtt](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/mqtt)
-  drop = ["aerospike*"]
+* [nsq](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/nsq)
-
+* [opentsdb](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/opentsdb)
-[[outputs.influxdb]]
+* [prometheus](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/prometheus_client)
-  urls = [ "http://localhost:8086" ]
+* [riemann](https://github.com/influxdata/telegraf/tree/master/plugins/outputs/riemann)
-  database = "telegraf-aerospike-data"
-  precision = "s"
-  # Only accept aerospike data:
-  pass = ["aerospike*"]
-
-[[outputs.influxdb]]
-  urls = [ "http://localhost:8086" ]
-  database = "telegraf-cpu0-data"
-  precision = "s"
-  # Only store measurements where the tag "cpu" matches the value "cpu0"
-  [outputs.influxdb.tagpass]
-    cpu = ["cpu0"]
-```
-
-
-## Supported Outputs
-
-* influxdb
-* nsq
-* kafka
-* datadog
-* opentsdb
-* amqp (rabbitmq)
-* mqtt
-* librato
-* prometheus
-* amon
-* riemann
 
 ## Contributing
 
 Please see the
 [contributing guide](CONTRIBUTING.md)
-for details on contributing a plugin or output to Telegraf.
+for details on contributing a plugin to Telegraf.

accumulator.go

@@ -1,154 +1,21 @@
 package telegraf
 
-import (
+import "time"
-	"fmt"
-	"log"
-	"math"
-	"sync"
-	"time"
-
-	"github.com/influxdb/telegraf/internal/config"
-
-	"github.com/influxdb/influxdb/client/v2"
-)
 
 type Accumulator interface {
-	Add(measurement string, value interface{},
+	// Create a point with a value, decorating it with tags
-		tags map[string]string, t ...time.Time)
+	// NOTE: tags is expected to be owned by the caller, don't mutate
-	AddFields(measurement string, fields map[string]interface{},
+	// it after passing to Add.
-		tags map[string]string, t ...time.Time)
+	Add(measurement string,
+		value interface{},
+		tags map[string]string,
+		t ...time.Time)
 
-	SetDefaultTags(tags map[string]string)
+	AddFields(measurement string,
-	AddDefaultTag(key, value string)
+		fields map[string]interface{},
-
+		tags map[string]string,
-	Prefix() string
+		t ...time.Time)
-	SetPrefix(prefix string)
 
 	Debug() bool
 	SetDebug(enabled bool)
 }
-
-func NewAccumulator(
-	pluginConfig *config.PluginConfig,
-	points chan *client.Point,
-) Accumulator {
-	acc := accumulator{}
-	acc.points = points
-	acc.pluginConfig = pluginConfig
-	return &acc
-}
-
-type accumulator struct {
-	sync.Mutex
-
-	points chan *client.Point
-
-	defaultTags map[string]string
-
-	debug bool
-
-	pluginConfig *config.PluginConfig
-
-	prefix string
-}
-
-func (ac *accumulator) Add(
-	measurement string,
-	value interface{},
-	tags map[string]string,
-	t ...time.Time,
-) {
-	fields := make(map[string]interface{})
-	fields["value"] = value
-	ac.AddFields(measurement, fields, tags, t...)
-}
-
-func (ac *accumulator) AddFields(
-	measurement string,
-	fields map[string]interface{},
-	tags map[string]string,
-	t ...time.Time,
-) {
-	// Validate uint64 and float64 fields
-	for k, v := range fields {
-		switch val := v.(type) {
-		case uint64:
-			// InfluxDB does not support writing uint64
-			if val < uint64(9223372036854775808) {
-				fields[k] = int64(val)
-			} else {
-				fields[k] = int64(9223372036854775807)
-			}
-		case float64:
-			// NaNs are invalid values in influxdb, skip measurement
-			if math.IsNaN(val) || math.IsInf(val, 0) {
-				if ac.debug {
-					log.Printf("Measurement [%s] has a NaN or Inf field, skipping",
-						measurement)
-				}
-				return
-			}
-		}
-	}
-
-	if tags == nil {
-		tags = make(map[string]string)
-	}
-
-	var timestamp time.Time
-	if len(t) > 0 {
-		timestamp = t[0]
-	} else {
-		timestamp = time.Now()
-	}
-
-	if ac.prefix != "" {
-		measurement = ac.prefix + measurement
-	}
-
-	if ac.pluginConfig != nil {
-		if !ac.pluginConfig.Filter.ShouldPass(measurement) || !ac.pluginConfig.Filter.ShouldTagsPass(tags) {
-			return
-		}
-	}
-
-	for k, v := range ac.defaultTags {
-		if _, ok := tags[k]; !ok {
-			tags[k] = v
-		}
-	}
-
-	pt, err := client.NewPoint(measurement, tags, fields, timestamp)
-	if err != nil {
-		log.Printf("Error adding point [%s]: %s\n", measurement, err.Error())
-		return
-	}
-	if ac.debug {
-		fmt.Println("> " + pt.String())
-	}
-	ac.points <- pt
-}
-
-func (ac *accumulator) SetDefaultTags(tags map[string]string) {
-	ac.defaultTags = tags
-}
-
-func (ac *accumulator) AddDefaultTag(key, value string) {
-	ac.defaultTags[key] = value
-}
-
-func (ac *accumulator) Prefix() string {
-	return ac.prefix
-}
-
-func (ac *accumulator) SetPrefix(prefix string) {
-	ac.prefix = prefix
-}
-
-func (ac *accumulator) Debug() bool {
-	return ac.debug
-}
-
-func (ac *accumulator) SetDebug(debug bool) {
-	ac.debug = debug
-}

agent.go

@@ -1,397 +0,0 @@
-package telegraf
-
-import (
-	"crypto/rand"
-	"fmt"
-	"log"
-	"math/big"
-	"os"
-	"sync"
-	"time"
-
-	"github.com/influxdb/telegraf/internal/config"
-	"github.com/influxdb/telegraf/outputs"
-	"github.com/influxdb/telegraf/plugins"
-
-	"github.com/influxdb/influxdb/client/v2"
-)
-
-// Agent runs telegraf and collects data based on the given config
-type Agent struct {
-	Config *config.Config
-}
-
-// NewAgent returns an Agent struct based off the given Config
-func NewAgent(config *config.Config) (*Agent, error) {
-	a := &Agent{
-		Config: config,
-	}
-
-	if a.Config.Agent.Hostname == "" {
-		hostname, err := os.Hostname()
-		if err != nil {
-			return nil, err
-		}
-
-		a.Config.Agent.Hostname = hostname
-	}
-
-	config.Tags["host"] = a.Config.Agent.Hostname
-
-	return a, nil
-}
-
-// Connect connects to all configured outputs
-func (a *Agent) Connect() error {
-	for _, o := range a.Config.Outputs {
-		switch ot := o.Output.(type) {
-		case outputs.ServiceOutput:
-			if err := ot.Start(); err != nil {
-				log.Printf("Service for output %s failed to start, exiting\n%s\n",
-					o.Name, err.Error())
-				return err
-			}
-		}
-
-		if a.Config.Agent.Debug {
-			log.Printf("Attempting connection to output: %s\n", o.Name)
-		}
-		err := o.Output.Connect()
-		if err != nil {
-			log.Printf("Failed to connect to output %s, retrying in 15s\n", o.Name)
-			time.Sleep(15 * time.Second)
-			err = o.Output.Connect()
-			if err != nil {
-				return err
-			}
-		}
-		if a.Config.Agent.Debug {
-			log.Printf("Successfully connected to output: %s\n", o.Name)
-		}
-	}
-	return nil
-}
-
-// Close closes the connection to all configured outputs
-func (a *Agent) Close() error {
-	var err error
-	for _, o := range a.Config.Outputs {
-		err = o.Output.Close()
-		switch ot := o.Output.(type) {
-		case outputs.ServiceOutput:
-			ot.Stop()
-		}
-	}
-	return err
-}
-
-// gatherParallel runs the plugins that are using the same reporting interval
-// as the telegraf agent.
-func (a *Agent) gatherParallel(pointChan chan *client.Point) error {
-	var wg sync.WaitGroup
-
-	start := time.Now()
-	counter := 0
-	for _, plugin := range a.Config.Plugins {
-		if plugin.Config.Interval != 0 {
-			continue
-		}
-
-		wg.Add(1)
-		counter++
-		go func(plugin *config.RunningPlugin) {
-			defer wg.Done()
-
-			acc := NewAccumulator(plugin.Config, pointChan)
-			acc.SetDebug(a.Config.Agent.Debug)
-			acc.SetPrefix(plugin.Name + "_")
-			acc.SetDefaultTags(a.Config.Tags)
-
-			if err := plugin.Plugin.Gather(acc); err != nil {
-				log.Printf("Error in plugin [%s]: %s", plugin.Name, err)
-			}
-
-		}(plugin)
-	}
-
-	if counter == 0 {
-		return nil
-	}
-
-	wg.Wait()
-
-	elapsed := time.Since(start)
-	log.Printf("Gathered metrics, (%s interval), from %d plugins in %s\n",
-		a.Config.Agent.Interval, counter, elapsed)
-	return nil
-}
-
-// gatherSeparate runs the plugins that have been configured with their own
-// reporting interval.
-func (a *Agent) gatherSeparate(
-	shutdown chan struct{},
-	plugin *config.RunningPlugin,
-	pointChan chan *client.Point,
-) error {
-	ticker := time.NewTicker(plugin.Config.Interval)
-
-	for {
-		var outerr error
-		start := time.Now()
-
-		acc := NewAccumulator(plugin.Config, pointChan)
-		acc.SetDebug(a.Config.Agent.Debug)
-		acc.SetPrefix(plugin.Name + "_")
-		acc.SetDefaultTags(a.Config.Tags)
-
-		if err := plugin.Plugin.Gather(acc); err != nil {
-			log.Printf("Error in plugin [%s]: %s", plugin.Name, err)
-		}
-
-		elapsed := time.Since(start)
-		log.Printf("Gathered metrics, (separate %s interval), from %s in %s\n",
-			plugin.Config.Interval, plugin.Name, elapsed)
-
-		if outerr != nil {
-			return outerr
-		}
-
-		select {
-		case <-shutdown:
-			return nil
-		case <-ticker.C:
-			continue
-		}
-	}
-}
-
-// Test verifies that we can 'Gather' from all plugins with their configured
-// Config struct
-func (a *Agent) Test() error {
-	shutdown := make(chan struct{})
-	defer close(shutdown)
-	pointChan := make(chan *client.Point)
-
-	// dummy receiver for the point channel
-	go func() {
-		for {
-			select {
-			case <-pointChan:
-				// do nothing
-			case <-shutdown:
-				return
-			}
-		}
-	}()
-
-	for _, plugin := range a.Config.Plugins {
-		acc := NewAccumulator(plugin.Config, pointChan)
-		acc.SetDebug(true)
-		acc.SetPrefix(plugin.Name + "_")
-
-		fmt.Printf("* Plugin: %s, Collection 1\n", plugin.Name)
-		if plugin.Config.Interval != 0 {
-			fmt.Printf("* Internal: %s\n", plugin.Config.Interval)
-		}
-
-		if err := plugin.Plugin.Gather(acc); err != nil {
-			return err
-		}
-
-		// Special instructions for some plugins. cpu, for example, needs to be
-		// run twice in order to return cpu usage percentages.
-		switch plugin.Name {
-		case "cpu", "mongodb":
-			time.Sleep(500 * time.Millisecond)
-			fmt.Printf("* Plugin: %s, Collection 2\n", plugin.Name)
-			if err := plugin.Plugin.Gather(acc); err != nil {
-				return err
-			}
-		}
-
-	}
-	return nil
-}
-
-// writeOutput writes a list of points to a single output, with retries.
-// Optionally takes a `done` channel to indicate that it is done writing.
-func (a *Agent) writeOutput(
-	points []*client.Point,
-	ro *config.RunningOutput,
-	shutdown chan struct{},
-	wg *sync.WaitGroup,
-) {
-	defer wg.Done()
-	if len(points) == 0 {
-		return
-	}
-	retry := 0
-	retries := a.Config.Agent.FlushRetries
-	start := time.Now()
-
-	for {
-		filtered := ro.FilterPoints(points)
-		err := ro.Output.Write(filtered)
-		if err == nil {
-			// Write successful
-			elapsed := time.Since(start)
-			log.Printf("Flushed %d metrics to output %s in %s\n",
-				len(filtered), ro.Name, elapsed)
-			return
-		}
-
-		select {
-		case <-shutdown:
-			return
-		default:
-			if retry >= retries {
-				// No more retries
-				msg := "FATAL: Write to output [%s] failed %d times, dropping" +
-					" %d metrics\n"
-				log.Printf(msg, ro.Name, retries+1, len(points))
-				return
-			} else if err != nil {
-				// Sleep for a retry
-				log.Printf("Error in output [%s]: %s, retrying in %s",
-					ro.Name, err.Error(), a.Config.Agent.FlushInterval.Duration)
-				time.Sleep(a.Config.Agent.FlushInterval.Duration)
-			}
-		}
-
-		retry++
-	}
-}
-
-// flush writes a list of points to all configured outputs
-func (a *Agent) flush(
-	points []*client.Point,
-	shutdown chan struct{},
-	wait bool,
-) {
-	var wg sync.WaitGroup
-	for _, o := range a.Config.Outputs {
-		wg.Add(1)
-		go a.writeOutput(points, o, shutdown, &wg)
-	}
-	if wait {
-		wg.Wait()
-	}
-}
-
-// flusher monitors the points input channel and flushes on the minimum interval
-func (a *Agent) flusher(shutdown chan struct{}, pointChan chan *client.Point) error {
-	// Inelegant, but this sleep is to allow the Gather threads to run, so that
-	// the flusher will flush after metrics are collected.
-	time.Sleep(time.Millisecond * 100)
-
-	ticker := time.NewTicker(a.Config.Agent.FlushInterval.Duration)
-	points := make([]*client.Point, 0)
-
-	for {
-		select {
-		case <-shutdown:
-			log.Println("Hang on, flushing any cached points before shutdown")
-			a.flush(points, shutdown, true)
-			return nil
-		case <-ticker.C:
-			a.flush(points, shutdown, false)
-			points = make([]*client.Point, 0)
-		case pt := <-pointChan:
-			points = append(points, pt)
-		}
-	}
-}
-
-// jitterInterval applies the the interval jitter to the flush interval using
-// crypto/rand number generator
-func jitterInterval(ininterval, injitter time.Duration) time.Duration {
-	var jitter int64
-	outinterval := ininterval
-	if injitter.Nanoseconds() != 0 {
-		maxjitter := big.NewInt(injitter.Nanoseconds())
-		if j, err := rand.Int(rand.Reader, maxjitter); err == nil {
-			jitter = j.Int64()
-		}
-		outinterval = time.Duration(jitter + ininterval.Nanoseconds())
-	}
-
-	if outinterval.Nanoseconds() < time.Duration(500*time.Millisecond).Nanoseconds() {
-		log.Printf("Flush interval %s too low, setting to 500ms\n", outinterval)
-		outinterval = time.Duration(500 * time.Millisecond)
-	}
-
-	return outinterval
-}
-
-// Run runs the agent daemon, gathering every Interval
-func (a *Agent) Run(shutdown chan struct{}) error {
-	var wg sync.WaitGroup
-
-	a.Config.Agent.FlushInterval.Duration = jitterInterval(a.Config.Agent.FlushInterval.Duration,
-		a.Config.Agent.FlushJitter.Duration)
-
-	log.Printf("Agent Config: Interval:%s, Debug:%#v, Hostname:%#v, "+
-		"Flush Interval:%s\n",
-		a.Config.Agent.Interval, a.Config.Agent.Debug,
-		a.Config.Agent.Hostname, a.Config.Agent.FlushInterval)
-
-	// channel shared between all plugin threads for accumulating points
-	pointChan := make(chan *client.Point, 1000)
-
-	// Round collection to nearest interval by sleeping
-	if a.Config.Agent.RoundInterval {
-		i := int64(a.Config.Agent.Interval.Duration)
-		time.Sleep(time.Duration(i - (time.Now().UnixNano() % i)))
-	}
-	ticker := time.NewTicker(a.Config.Agent.Interval.Duration)
-
-	wg.Add(1)
-	go func() {
-		defer wg.Done()
-		if err := a.flusher(shutdown, pointChan); err != nil {
-			log.Printf("Flusher routine failed, exiting: %s\n", err.Error())
-			close(shutdown)
-		}
-	}()
-
-	for _, plugin := range a.Config.Plugins {
-
-		// Start service of any ServicePlugins
-		switch p := plugin.Plugin.(type) {
-		case plugins.ServicePlugin:
-			if err := p.Start(); err != nil {
-				log.Printf("Service for plugin %s failed to start, exiting\n%s\n",
-					plugin.Name, err.Error())
-				return err
-			}
-			defer p.Stop()
-		}
-
-		// Special handling for plugins that have their own collection interval
-		// configured. Default intervals are handled below with gatherParallel
-		if plugin.Config.Interval != 0 {
-			wg.Add(1)
-			go func(plugin *config.RunningPlugin) {
-				defer wg.Done()
-				if err := a.gatherSeparate(shutdown, plugin, pointChan); err != nil {
-					log.Printf(err.Error())
-				}
-			}(plugin)
-		}
-	}
-
-	defer wg.Wait()
-
-	for {
-		if err := a.gatherParallel(pointChan); err != nil {
-			log.Printf(err.Error())
-		}
-
-		select {
-		case <-shutdown:
-			return nil
-		case <-ticker.C:
-			continue
-		}
-	}
-}

agent/accumulator.go

@@ -0,0 +1,185 @@
+package agent
+
+import (
+	"fmt"
+	"log"
+	"math"
+	"time"
+
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/internal/models"
+)
+
+func NewAccumulator(
+	inputConfig *internal_models.InputConfig,
+	metrics chan telegraf.Metric,
+) *accumulator {
+	acc := accumulator{}
+	acc.metrics = metrics
+	acc.inputConfig = inputConfig
+	return &acc
+}
+
+type accumulator struct {
+	metrics chan telegraf.Metric
+
+	defaultTags map[string]string
+
+	debug bool
+	// print every point added to the accumulator
+	trace bool
+
+	inputConfig *internal_models.InputConfig
+
+	prefix string
+}
+
+func (ac *accumulator) Add(
+	measurement string,
+	value interface{},
+	tags map[string]string,
+	t ...time.Time,
+) {
+	fields := make(map[string]interface{})
+	fields["value"] = value
+
+	if !ac.inputConfig.Filter.ShouldNamePass(measurement) {
+		return
+	}
+
+	ac.AddFields(measurement, fields, tags, t...)
+}
+
+func (ac *accumulator) AddFields(
+	measurement string,
+	fields map[string]interface{},
+	tags map[string]string,
+	t ...time.Time,
+) {
+	if len(fields) == 0 || len(measurement) == 0 {
+		return
+	}
+
+	if !ac.inputConfig.Filter.ShouldNamePass(measurement) {
+		return
+	}
+
+	if !ac.inputConfig.Filter.ShouldTagsPass(tags) {
+		return
+	}
+
+	// Override measurement name if set
+	if len(ac.inputConfig.NameOverride) != 0 {
+		measurement = ac.inputConfig.NameOverride
+	}
+	// Apply measurement prefix and suffix if set
+	if len(ac.inputConfig.MeasurementPrefix) != 0 {
+		measurement = ac.inputConfig.MeasurementPrefix + measurement
+	}
+	if len(ac.inputConfig.MeasurementSuffix) != 0 {
+		measurement = measurement + ac.inputConfig.MeasurementSuffix
+	}
+
+	if tags == nil {
+		tags = make(map[string]string)
+	}
+	// Apply plugin-wide tags if set
+	for k, v := range ac.inputConfig.Tags {
+		if _, ok := tags[k]; !ok {
+			tags[k] = v
+		}
+	}
+	// Apply daemon-wide tags if set
+	for k, v := range ac.defaultTags {
+		if _, ok := tags[k]; !ok {
+			tags[k] = v
+		}
+	}
+	ac.inputConfig.Filter.FilterTags(tags)
+
+	result := make(map[string]interface{})
+	for k, v := range fields {
+		// Filter out any filtered fields
+		if ac.inputConfig != nil {
+			if !ac.inputConfig.Filter.ShouldFieldsPass(k) {
+				continue
+			}
+		}
+
+		// Validate uint64 and float64 fields
+		switch val := v.(type) {
+		case uint64:
+			// InfluxDB does not support writing uint64
+			if val < uint64(9223372036854775808) {
+				result[k] = int64(val)
+			} else {
+				result[k] = int64(9223372036854775807)
+			}
+			continue
+		case float64:
+			// NaNs are invalid values in influxdb, skip measurement
+			if math.IsNaN(val) || math.IsInf(val, 0) {
+				if ac.debug {
+					log.Printf("Measurement [%s] field [%s] has a NaN or Inf "+
+						"field, skipping",
+						measurement, k)
+				}
+				continue
+			}
+		}
+
+		result[k] = v
+	}
+	fields = nil
+	if len(result) == 0 {
+		return
+	}
+
+	var timestamp time.Time
+	if len(t) > 0 {
+		timestamp = t[0]
+	} else {
+		timestamp = time.Now()
+	}
+
+	if ac.prefix != "" {
+		measurement = ac.prefix + measurement
+	}
+
+	m, err := telegraf.NewMetric(measurement, tags, result, timestamp)
+	if err != nil {
+		log.Printf("Error adding point [%s]: %s\n", measurement, err.Error())
+		return
+	}
+	if ac.trace {
+		fmt.Println("> " + m.String())
+	}
+	ac.metrics <- m
+}
+
+func (ac *accumulator) Debug() bool {
+	return ac.debug
+}
+
+func (ac *accumulator) SetDebug(debug bool) {
+	ac.debug = debug
+}
+
+func (ac *accumulator) Trace() bool {
+	return ac.trace
+}
+
+func (ac *accumulator) SetTrace(trace bool) {
+	ac.trace = trace
+}
+
+func (ac *accumulator) setDefaultTags(tags map[string]string) {
+	ac.defaultTags = tags
+}
+
+func (ac *accumulator) addDefaultTag(key, value string) {
+	if ac.defaultTags == nil {
+		ac.defaultTags = make(map[string]string)
+	}
+	ac.defaultTags[key] = value
+}

agent/accumulator_test.go

@@ -0,0 +1,334 @@
+package agent
+
+import (
+	"fmt"
+	"math"
+	"testing"
+	"time"
+
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/internal/models"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestAdd(t *testing.T) {
+	a := accumulator{}
+	now := time.Now()
+	a.metrics = make(chan telegraf.Metric, 10)
+	defer close(a.metrics)
+	a.inputConfig = &internal_models.InputConfig{}
+
+	a.Add("acctest", float64(101), map[string]string{})
+	a.Add("acctest", float64(101), map[string]string{"acc": "test"})
+	a.Add("acctest", float64(101), map[string]string{"acc": "test"}, now)
+
+	testm := <-a.metrics
+	actual := testm.String()
+	assert.Contains(t, actual, "acctest value=101")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Contains(t, actual, "acctest,acc=test value=101")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Equal(t,
+		fmt.Sprintf("acctest,acc=test value=101 %d", now.UnixNano()),
+		actual)
+}
+
+func TestAddDefaultTags(t *testing.T) {
+	a := accumulator{}
+	a.addDefaultTag("default", "tag")
+	now := time.Now()
+	a.metrics = make(chan telegraf.Metric, 10)
+	defer close(a.metrics)
+	a.inputConfig = &internal_models.InputConfig{}
+
+	a.Add("acctest", float64(101), map[string]string{})
+	a.Add("acctest", float64(101), map[string]string{"acc": "test"})
+	a.Add("acctest", float64(101), map[string]string{"acc": "test"}, now)
+
+	testm := <-a.metrics
+	actual := testm.String()
+	assert.Contains(t, actual, "acctest,default=tag value=101")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Contains(t, actual, "acctest,acc=test,default=tag value=101")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Equal(t,
+		fmt.Sprintf("acctest,acc=test,default=tag value=101 %d", now.UnixNano()),
+		actual)
+}
+
+func TestAddFields(t *testing.T) {
+	a := accumulator{}
+	now := time.Now()
+	a.metrics = make(chan telegraf.Metric, 10)
+	defer close(a.metrics)
+	a.inputConfig = &internal_models.InputConfig{}
+
+	fields := map[string]interface{}{
+		"usage": float64(99),
+	}
+	a.AddFields("acctest", fields, map[string]string{})
+	a.AddFields("acctest", fields, map[string]string{"acc": "test"})
+	a.AddFields("acctest", fields, map[string]string{"acc": "test"}, now)
+
+	testm := <-a.metrics
+	actual := testm.String()
+	assert.Contains(t, actual, "acctest usage=99")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Contains(t, actual, "acctest,acc=test usage=99")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Equal(t,
+		fmt.Sprintf("acctest,acc=test usage=99 %d", now.UnixNano()),
+		actual)
+}
+
+// Test that all Inf fields get dropped, and not added to metrics channel
+func TestAddInfFields(t *testing.T) {
+	inf := math.Inf(1)
+	ninf := math.Inf(-1)
+
+	a := accumulator{}
+	now := time.Now()
+	a.metrics = make(chan telegraf.Metric, 10)
+	defer close(a.metrics)
+	a.inputConfig = &internal_models.InputConfig{}
+
+	fields := map[string]interface{}{
+		"usage":  inf,
+		"nusage": ninf,
+	}
+	a.AddFields("acctest", fields, map[string]string{})
+	a.AddFields("acctest", fields, map[string]string{"acc": "test"})
+	a.AddFields("acctest", fields, map[string]string{"acc": "test"}, now)
+
+	assert.Len(t, a.metrics, 0)
+
+	// test that non-inf fields are kept and not dropped
+	fields["notinf"] = float64(100)
+	a.AddFields("acctest", fields, map[string]string{})
+	testm := <-a.metrics
+	actual := testm.String()
+	assert.Contains(t, actual, "acctest notinf=100")
+}
+
+// Test that nan fields are dropped and not added
+func TestAddNaNFields(t *testing.T) {
+	nan := math.NaN()
+
+	a := accumulator{}
+	now := time.Now()
+	a.metrics = make(chan telegraf.Metric, 10)
+	defer close(a.metrics)
+	a.inputConfig = &internal_models.InputConfig{}
+
+	fields := map[string]interface{}{
+		"usage": nan,
+	}
+	a.AddFields("acctest", fields, map[string]string{})
+	a.AddFields("acctest", fields, map[string]string{"acc": "test"})
+	a.AddFields("acctest", fields, map[string]string{"acc": "test"}, now)
+
+	assert.Len(t, a.metrics, 0)
+
+	// test that non-nan fields are kept and not dropped
+	fields["notnan"] = float64(100)
+	a.AddFields("acctest", fields, map[string]string{})
+	testm := <-a.metrics
+	actual := testm.String()
+	assert.Contains(t, actual, "acctest notnan=100")
+}
+
+func TestAddUint64Fields(t *testing.T) {
+	a := accumulator{}
+	now := time.Now()
+	a.metrics = make(chan telegraf.Metric, 10)
+	defer close(a.metrics)
+	a.inputConfig = &internal_models.InputConfig{}
+
+	fields := map[string]interface{}{
+		"usage": uint64(99),
+	}
+	a.AddFields("acctest", fields, map[string]string{})
+	a.AddFields("acctest", fields, map[string]string{"acc": "test"})
+	a.AddFields("acctest", fields, map[string]string{"acc": "test"}, now)
+
+	testm := <-a.metrics
+	actual := testm.String()
+	assert.Contains(t, actual, "acctest usage=99i")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Contains(t, actual, "acctest,acc=test usage=99i")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Equal(t,
+		fmt.Sprintf("acctest,acc=test usage=99i %d", now.UnixNano()),
+		actual)
+}
+
+func TestAddUint64Overflow(t *testing.T) {
+	a := accumulator{}
+	now := time.Now()
+	a.metrics = make(chan telegraf.Metric, 10)
+	defer close(a.metrics)
+	a.inputConfig = &internal_models.InputConfig{}
+
+	fields := map[string]interface{}{
+		"usage": uint64(9223372036854775808),
+	}
+	a.AddFields("acctest", fields, map[string]string{})
+	a.AddFields("acctest", fields, map[string]string{"acc": "test"})
+	a.AddFields("acctest", fields, map[string]string{"acc": "test"}, now)
+
+	testm := <-a.metrics
+	actual := testm.String()
+	assert.Contains(t, actual, "acctest usage=9223372036854775807i")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Contains(t, actual, "acctest,acc=test usage=9223372036854775807i")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Equal(t,
+		fmt.Sprintf("acctest,acc=test usage=9223372036854775807i %d", now.UnixNano()),
+		actual)
+}
+
+func TestAddInts(t *testing.T) {
+	a := accumulator{}
+	a.addDefaultTag("default", "tag")
+	now := time.Now()
+	a.metrics = make(chan telegraf.Metric, 10)
+	defer close(a.metrics)
+	a.inputConfig = &internal_models.InputConfig{}
+
+	a.Add("acctest", int(101), map[string]string{})
+	a.Add("acctest", int32(101), map[string]string{"acc": "test"})
+	a.Add("acctest", int64(101), map[string]string{"acc": "test"}, now)
+
+	testm := <-a.metrics
+	actual := testm.String()
+	assert.Contains(t, actual, "acctest,default=tag value=101i")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Contains(t, actual, "acctest,acc=test,default=tag value=101i")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Equal(t,
+		fmt.Sprintf("acctest,acc=test,default=tag value=101i %d", now.UnixNano()),
+		actual)
+}
+
+func TestAddFloats(t *testing.T) {
+	a := accumulator{}
+	a.addDefaultTag("default", "tag")
+	now := time.Now()
+	a.metrics = make(chan telegraf.Metric, 10)
+	defer close(a.metrics)
+	a.inputConfig = &internal_models.InputConfig{}
+
+	a.Add("acctest", float32(101), map[string]string{"acc": "test"})
+	a.Add("acctest", float64(101), map[string]string{"acc": "test"}, now)
+
+	testm := <-a.metrics
+	actual := testm.String()
+	assert.Contains(t, actual, "acctest,acc=test,default=tag value=101")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Equal(t,
+		fmt.Sprintf("acctest,acc=test,default=tag value=101 %d", now.UnixNano()),
+		actual)
+}
+
+func TestAddStrings(t *testing.T) {
+	a := accumulator{}
+	a.addDefaultTag("default", "tag")
+	now := time.Now()
+	a.metrics = make(chan telegraf.Metric, 10)
+	defer close(a.metrics)
+	a.inputConfig = &internal_models.InputConfig{}
+
+	a.Add("acctest", "test", map[string]string{"acc": "test"})
+	a.Add("acctest", "foo", map[string]string{"acc": "test"}, now)
+
+	testm := <-a.metrics
+	actual := testm.String()
+	assert.Contains(t, actual, "acctest,acc=test,default=tag value=\"test\"")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Equal(t,
+		fmt.Sprintf("acctest,acc=test,default=tag value=\"foo\" %d", now.UnixNano()),
+		actual)
+}
+
+func TestAddBools(t *testing.T) {
+	a := accumulator{}
+	a.addDefaultTag("default", "tag")
+	now := time.Now()
+	a.metrics = make(chan telegraf.Metric, 10)
+	defer close(a.metrics)
+	a.inputConfig = &internal_models.InputConfig{}
+
+	a.Add("acctest", true, map[string]string{"acc": "test"})
+	a.Add("acctest", false, map[string]string{"acc": "test"}, now)
+
+	testm := <-a.metrics
+	actual := testm.String()
+	assert.Contains(t, actual, "acctest,acc=test,default=tag value=true")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Equal(t,
+		fmt.Sprintf("acctest,acc=test,default=tag value=false %d", now.UnixNano()),
+		actual)
+}
+
+// Test that tag filters get applied to metrics.
+func TestAccFilterTags(t *testing.T) {
+	a := accumulator{}
+	now := time.Now()
+	a.metrics = make(chan telegraf.Metric, 10)
+	defer close(a.metrics)
+	filter := internal_models.Filter{
+		TagExclude: []string{"acc"},
+	}
+	assert.NoError(t, filter.CompileFilter())
+	a.inputConfig = &internal_models.InputConfig{}
+	a.inputConfig.Filter = filter
+
+	a.Add("acctest", float64(101), map[string]string{})
+	a.Add("acctest", float64(101), map[string]string{"acc": "test"})
+	a.Add("acctest", float64(101), map[string]string{"acc": "test"}, now)
+
+	testm := <-a.metrics
+	actual := testm.String()
+	assert.Contains(t, actual, "acctest value=101")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Contains(t, actual, "acctest value=101")
+
+	testm = <-a.metrics
+	actual = testm.String()
+	assert.Equal(t,
+		fmt.Sprintf("acctest value=101 %d", now.UnixNano()),
+		actual)
+}

agent/agent.go

@@ -0,0 +1,334 @@
+package agent
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"runtime"
+	"sync"
+	"time"
+
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/internal"
+	"github.com/influxdata/telegraf/internal/config"
+	"github.com/influxdata/telegraf/internal/models"
+)
+
+// Agent runs telegraf and collects data based on the given config
+type Agent struct {
+	Config *config.Config
+}
+
+// NewAgent returns an Agent struct based off the given Config
+func NewAgent(config *config.Config) (*Agent, error) {
+	a := &Agent{
+		Config: config,
+	}
+
+	if !a.Config.Agent.OmitHostname {
+		if a.Config.Agent.Hostname == "" {
+			hostname, err := os.Hostname()
+			if err != nil {
+				return nil, err
+			}
+
+			a.Config.Agent.Hostname = hostname
+		}
+
+		config.Tags["host"] = a.Config.Agent.Hostname
+	}
+
+	return a, nil
+}
+
+// Connect connects to all configured outputs
+func (a *Agent) Connect() error {
+	for _, o := range a.Config.Outputs {
+		o.Quiet = a.Config.Agent.Quiet
+
+		switch ot := o.Output.(type) {
+		case telegraf.ServiceOutput:
+			if err := ot.Start(); err != nil {
+				log.Printf("Service for output %s failed to start, exiting\n%s\n",
+					o.Name, err.Error())
+				return err
+			}
+		}
+
+		if a.Config.Agent.Debug {
+			log.Printf("Attempting connection to output: %s\n", o.Name)
+		}
+		err := o.Output.Connect()
+		if err != nil {
+			log.Printf("Failed to connect to output %s, retrying in 15s, "+
+				"error was '%s' \n", o.Name, err)
+			time.Sleep(15 * time.Second)
+			err = o.Output.Connect()
+			if err != nil {
+				return err
+			}
+		}
+		if a.Config.Agent.Debug {
+			log.Printf("Successfully connected to output: %s\n", o.Name)
+		}
+	}
+	return nil
+}
+
+// Close closes the connection to all configured outputs
+func (a *Agent) Close() error {
+	var err error
+	for _, o := range a.Config.Outputs {
+		err = o.Output.Close()
+		switch ot := o.Output.(type) {
+		case telegraf.ServiceOutput:
+			ot.Stop()
+		}
+	}
+	return err
+}
+
+func panicRecover(input *internal_models.RunningInput) {
+	if err := recover(); err != nil {
+		trace := make([]byte, 2048)
+		runtime.Stack(trace, true)
+		log.Printf("FATAL: Input [%s] panicked: %s, Stack:\n%s\n",
+			input.Name, err, trace)
+		log.Println("PLEASE REPORT THIS PANIC ON GITHUB with " +
+			"stack trace, configuration, and OS information: " +
+			"https://github.com/influxdata/telegraf/issues/new")
+	}
+}
+
+// gatherer runs the inputs that have been configured with their own
+// reporting interval.
+func (a *Agent) gatherer(
+	shutdown chan struct{},
+	input *internal_models.RunningInput,
+	interval time.Duration,
+	metricC chan telegraf.Metric,
+) error {
+	defer panicRecover(input)
+
+	ticker := time.NewTicker(interval)
+	defer ticker.Stop()
+
+	for {
+		var outerr error
+
+		acc := NewAccumulator(input.Config, metricC)
+		acc.SetDebug(a.Config.Agent.Debug)
+		acc.setDefaultTags(a.Config.Tags)
+
+		internal.RandomSleep(a.Config.Agent.CollectionJitter.Duration, shutdown)
+
+		start := time.Now()
+		gatherWithTimeout(shutdown, input, acc, interval)
+		elapsed := time.Since(start)
+
+		if outerr != nil {
+			return outerr
+		}
+		if a.Config.Agent.Debug {
+			log.Printf("Input [%s] gathered metrics, (%s interval) in %s\n",
+				input.Name, interval, elapsed)
+		}
+
+		select {
+		case <-shutdown:
+			return nil
+		case <-ticker.C:
+			continue
+		}
+	}
+}
+
+// gatherWithTimeout gathers from the given input, with the given timeout.
+//   when the given timeout is reached, gatherWithTimeout logs an error message
+//   but continues waiting for it to return. This is to avoid leaving behind
+//   hung processes, and to prevent re-calling the same hung process over and
+//   over.
+func gatherWithTimeout(
+	shutdown chan struct{},
+	input *internal_models.RunningInput,
+	acc *accumulator,
+	timeout time.Duration,
+) {
+	ticker := time.NewTicker(timeout)
+	defer ticker.Stop()
+	done := make(chan error)
+	go func() {
+		done <- input.Input.Gather(acc)
+	}()
+
+	for {
+		select {
+		case err := <-done:
+			if err != nil {
+				log.Printf("ERROR in input [%s]: %s", input.Name, err)
+			}
+			return
+		case <-ticker.C:
+			log.Printf("ERROR: input [%s] took longer to collect than "+
+				"collection interval (%s)",
+				input.Name, timeout)
+			continue
+		case <-shutdown:
+			return
+		}
+	}
+}
+
+// Test verifies that we can 'Gather' from all inputs with their configured
+// Config struct
+func (a *Agent) Test() error {
+	shutdown := make(chan struct{})
+	defer close(shutdown)
+	metricC := make(chan telegraf.Metric)
+
+	// dummy receiver for the point channel
+	go func() {
+		for {
+			select {
+			case <-metricC:
+				// do nothing
+			case <-shutdown:
+				return
+			}
+		}
+	}()
+
+	for _, input := range a.Config.Inputs {
+		acc := NewAccumulator(input.Config, metricC)
+		acc.SetTrace(true)
+		acc.setDefaultTags(a.Config.Tags)
+
+		fmt.Printf("* Plugin: %s, Collection 1\n", input.Name)
+		if input.Config.Interval != 0 {
+			fmt.Printf("* Internal: %s\n", input.Config.Interval)
+		}
+
+		if err := input.Input.Gather(acc); err != nil {
+			return err
+		}
+
+		// Special instructions for some inputs. cpu, for example, needs to be
+		// run twice in order to return cpu usage percentages.
+		switch input.Name {
+		case "cpu", "mongodb", "procstat":
+			time.Sleep(500 * time.Millisecond)
+			fmt.Printf("* Plugin: %s, Collection 2\n", input.Name)
+			if err := input.Input.Gather(acc); err != nil {
+				return err
+			}
+		}
+
+	}
+	return nil
+}
+
+// flush writes a list of metrics to all configured outputs
+func (a *Agent) flush() {
+	var wg sync.WaitGroup
+
+	wg.Add(len(a.Config.Outputs))
+	for _, o := range a.Config.Outputs {
+		go func(output *internal_models.RunningOutput) {
+			defer wg.Done()
+			err := output.Write()
+			if err != nil {
+				log.Printf("Error writing to output [%s]: %s\n",
+					output.Name, err.Error())
+			}
+		}(o)
+	}
+
+	wg.Wait()
+}
+
+// flusher monitors the metrics input channel and flushes on the minimum interval
+func (a *Agent) flusher(shutdown chan struct{}, metricC chan telegraf.Metric) error {
+	// Inelegant, but this sleep is to allow the Gather threads to run, so that
+	// the flusher will flush after metrics are collected.
+	time.Sleep(time.Millisecond * 200)
+
+	ticker := time.NewTicker(a.Config.Agent.FlushInterval.Duration)
+
+	for {
+		select {
+		case <-shutdown:
+			log.Println("Hang on, flushing any cached metrics before shutdown")
+			a.flush()
+			return nil
+		case <-ticker.C:
+			internal.RandomSleep(a.Config.Agent.FlushJitter.Duration, shutdown)
+			a.flush()
+		case m := <-metricC:
+			for _, o := range a.Config.Outputs {
+				o.AddMetric(m)
+			}
+		}
+	}
+}
+
+// Run runs the agent daemon, gathering every Interval
+func (a *Agent) Run(shutdown chan struct{}) error {
+	var wg sync.WaitGroup
+
+	log.Printf("Agent Config: Interval:%s, Debug:%#v, Quiet:%#v, Hostname:%#v, "+
+		"Flush Interval:%s \n",
+		a.Config.Agent.Interval.Duration, a.Config.Agent.Debug, a.Config.Agent.Quiet,
+		a.Config.Agent.Hostname, a.Config.Agent.FlushInterval.Duration)
+
+	// channel shared between all input threads for accumulating metrics
+	metricC := make(chan telegraf.Metric, 10000)
+
+	for _, input := range a.Config.Inputs {
+		// Start service of any ServicePlugins
+		switch p := input.Input.(type) {
+		case telegraf.ServiceInput:
+			acc := NewAccumulator(input.Config, metricC)
+			acc.SetDebug(a.Config.Agent.Debug)
+			acc.setDefaultTags(a.Config.Tags)
+			if err := p.Start(acc); err != nil {
+				log.Printf("Service for input %s failed to start, exiting\n%s\n",
+					input.Name, err.Error())
+				return err
+			}
+			defer p.Stop()
+		}
+	}
+
+	// Round collection to nearest interval by sleeping
+	if a.Config.Agent.RoundInterval {
+		i := int64(a.Config.Agent.Interval.Duration)
+		time.Sleep(time.Duration(i - (time.Now().UnixNano() % i)))
+	}
+
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
+		if err := a.flusher(shutdown, metricC); err != nil {
+			log.Printf("Flusher routine failed, exiting: %s\n", err.Error())
+			close(shutdown)
+		}
+	}()
+
+	wg.Add(len(a.Config.Inputs))
+	for _, input := range a.Config.Inputs {
+		interval := a.Config.Agent.Interval.Duration
+		// overwrite global interval if this plugin has it's own.
+		if input.Config.Interval != 0 {
+			interval = input.Config.Interval
+		}
+		go func(in *internal_models.RunningInput, interv time.Duration) {
+			defer wg.Done()
+			if err := a.gatherer(shutdown, in, interv, metricC); err != nil {
+				log.Printf(err.Error())
+			}
+		}(input, interval)
+	}
+
+	wg.Wait()
+	return nil
+}

agent/agent_test.go

@@ -0,0 +1,111 @@
+package agent
+
+import (
+	"testing"
+
+	"github.com/influxdata/telegraf/internal/config"
+
+	// needing to load the plugins
+	_ "github.com/influxdata/telegraf/plugins/inputs/all"
+	// needing to load the outputs
+	_ "github.com/influxdata/telegraf/plugins/outputs/all"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestAgent_OmitHostname(t *testing.T) {
+	c := config.NewConfig()
+	c.Agent.OmitHostname = true
+	_, err := NewAgent(c)
+	assert.NoError(t, err)
+	assert.NotContains(t, c.Tags, "host")
+}
+
+func TestAgent_LoadPlugin(t *testing.T) {
+	c := config.NewConfig()
+	c.InputFilters = []string{"mysql"}
+	err := c.LoadConfig("../internal/config/testdata/telegraf-agent.toml")
+	assert.NoError(t, err)
+	a, _ := NewAgent(c)
+	assert.Equal(t, 1, len(a.Config.Inputs))
+
+	c = config.NewConfig()
+	c.InputFilters = []string{"foo"}
+	err = c.LoadConfig("../internal/config/testdata/telegraf-agent.toml")
+	assert.NoError(t, err)
+	a, _ = NewAgent(c)
+	assert.Equal(t, 0, len(a.Config.Inputs))
+
+	c = config.NewConfig()
+	c.InputFilters = []string{"mysql", "foo"}
+	err = c.LoadConfig("../internal/config/testdata/telegraf-agent.toml")
+	assert.NoError(t, err)
+	a, _ = NewAgent(c)
+	assert.Equal(t, 1, len(a.Config.Inputs))
+
+	c = config.NewConfig()
+	c.InputFilters = []string{"mysql", "redis"}
+	err = c.LoadConfig("../internal/config/testdata/telegraf-agent.toml")
+	assert.NoError(t, err)
+	a, _ = NewAgent(c)
+	assert.Equal(t, 2, len(a.Config.Inputs))
+
+	c = config.NewConfig()
+	c.InputFilters = []string{"mysql", "foo", "redis", "bar"}
+	err = c.LoadConfig("../internal/config/testdata/telegraf-agent.toml")
+	assert.NoError(t, err)
+	a, _ = NewAgent(c)
+	assert.Equal(t, 2, len(a.Config.Inputs))
+}
+
+func TestAgent_LoadOutput(t *testing.T) {
+	c := config.NewConfig()
+	c.OutputFilters = []string{"influxdb"}
+	err := c.LoadConfig("../internal/config/testdata/telegraf-agent.toml")
+	assert.NoError(t, err)
+	a, _ := NewAgent(c)
+	assert.Equal(t, 2, len(a.Config.Outputs))
+
+	c = config.NewConfig()
+	c.OutputFilters = []string{"kafka"}
+	err = c.LoadConfig("../internal/config/testdata/telegraf-agent.toml")
+	assert.NoError(t, err)
+	a, _ = NewAgent(c)
+	assert.Equal(t, 1, len(a.Config.Outputs))
+
+	c = config.NewConfig()
+	c.OutputFilters = []string{}
+	err = c.LoadConfig("../internal/config/testdata/telegraf-agent.toml")
+	assert.NoError(t, err)
+	a, _ = NewAgent(c)
+	assert.Equal(t, 3, len(a.Config.Outputs))
+
+	c = config.NewConfig()
+	c.OutputFilters = []string{"foo"}
+	err = c.LoadConfig("../internal/config/testdata/telegraf-agent.toml")
+	assert.NoError(t, err)
+	a, _ = NewAgent(c)
+	assert.Equal(t, 0, len(a.Config.Outputs))
+
+	c = config.NewConfig()
+	c.OutputFilters = []string{"influxdb", "foo"}
+	err = c.LoadConfig("../internal/config/testdata/telegraf-agent.toml")
+	assert.NoError(t, err)
+	a, _ = NewAgent(c)
+	assert.Equal(t, 2, len(a.Config.Outputs))
+
+	c = config.NewConfig()
+	c.OutputFilters = []string{"influxdb", "kafka"}
+	err = c.LoadConfig("../internal/config/testdata/telegraf-agent.toml")
+	assert.NoError(t, err)
+	assert.Equal(t, 3, len(c.Outputs))
+	a, _ = NewAgent(c)
+	assert.Equal(t, 3, len(a.Config.Outputs))
+
+	c = config.NewConfig()
+	c.OutputFilters = []string{"influxdb", "foo", "kafka", "bar"}
+	err = c.LoadConfig("../internal/config/testdata/telegraf-agent.toml")
+	assert.NoError(t, err)
+	a, _ = NewAgent(c)
+	assert.Equal(t, 3, len(a.Config.Outputs))
+}

agent_test.go

@@ -1,156 +0,0 @@
-package telegraf
-
-import (
-	"github.com/stretchr/testify/assert"
-	"testing"
-	"time"
-
-	"github.com/influxdb/telegraf/internal/config"
-
-	// needing to load the plugins
-	_ "github.com/influxdb/telegraf/plugins/all"
-	// needing to load the outputs
-	_ "github.com/influxdb/telegraf/outputs/all"
-)
-
-func TestAgent_LoadPlugin(t *testing.T) {
-	c := config.NewConfig()
-	c.PluginFilters = []string{"mysql"}
-	c.LoadConfig("./internal/config/testdata/telegraf-agent.toml")
-	a, _ := NewAgent(c)
-	assert.Equal(t, 1, len(a.Config.Plugins))
-
-	c = config.NewConfig()
-	c.PluginFilters = []string{"foo"}
-	c.LoadConfig("./internal/config/testdata/telegraf-agent.toml")
-	a, _ = NewAgent(c)
-	assert.Equal(t, 0, len(a.Config.Plugins))
-
-	c = config.NewConfig()
-	c.PluginFilters = []string{"mysql", "foo"}
-	c.LoadConfig("./internal/config/testdata/telegraf-agent.toml")
-	a, _ = NewAgent(c)
-	assert.Equal(t, 1, len(a.Config.Plugins))
-
-	c = config.NewConfig()
-	c.PluginFilters = []string{"mysql", "redis"}
-	c.LoadConfig("./internal/config/testdata/telegraf-agent.toml")
-	a, _ = NewAgent(c)
-	assert.Equal(t, 2, len(a.Config.Plugins))
-
-	c = config.NewConfig()
-	c.PluginFilters = []string{"mysql", "foo", "redis", "bar"}
-	c.LoadConfig("./internal/config/testdata/telegraf-agent.toml")
-	a, _ = NewAgent(c)
-	assert.Equal(t, 2, len(a.Config.Plugins))
-}
-
-func TestAgent_LoadOutput(t *testing.T) {
-	c := config.NewConfig()
-	c.OutputFilters = []string{"influxdb"}
-	c.LoadConfig("./internal/config/testdata/telegraf-agent.toml")
-	a, _ := NewAgent(c)
-	assert.Equal(t, 2, len(a.Config.Outputs))
-
-	c = config.NewConfig()
-	c.OutputFilters = []string{}
-	c.LoadConfig("./internal/config/testdata/telegraf-agent.toml")
-	a, _ = NewAgent(c)
-	assert.Equal(t, 3, len(a.Config.Outputs))
-
-	c = config.NewConfig()
-	c.OutputFilters = []string{"foo"}
-	c.LoadConfig("./internal/config/testdata/telegraf-agent.toml")
-	a, _ = NewAgent(c)
-	assert.Equal(t, 0, len(a.Config.Outputs))
-
-	c = config.NewConfig()
-	c.OutputFilters = []string{"influxdb", "foo"}
-	c.LoadConfig("./internal/config/testdata/telegraf-agent.toml")
-	a, _ = NewAgent(c)
-	assert.Equal(t, 2, len(a.Config.Outputs))
-
-	c = config.NewConfig()
-	c.OutputFilters = []string{"influxdb", "kafka"}
-	c.LoadConfig("./internal/config/testdata/telegraf-agent.toml")
-	a, _ = NewAgent(c)
-	assert.Equal(t, 3, len(a.Config.Outputs))
-
-	c = config.NewConfig()
-	c.OutputFilters = []string{"influxdb", "foo", "kafka", "bar"}
-	c.LoadConfig("./internal/config/testdata/telegraf-agent.toml")
-	a, _ = NewAgent(c)
-	assert.Equal(t, 3, len(a.Config.Outputs))
-}
-
-func TestAgent_ZeroJitter(t *testing.T) {
-	flushinterval := jitterInterval(time.Duration(10*time.Second),
-		time.Duration(0*time.Second))
-
-	actual := flushinterval.Nanoseconds()
-	exp := time.Duration(10 * time.Second).Nanoseconds()
-
-	if actual != exp {
-		t.Errorf("Actual %v, expected %v", actual, exp)
-	}
-}
-
-func TestAgent_ZeroInterval(t *testing.T) {
-	min := time.Duration(500 * time.Millisecond).Nanoseconds()
-	max := time.Duration(5 * time.Second).Nanoseconds()
-
-	for i := 0; i < 1000; i++ {
-		flushinterval := jitterInterval(time.Duration(0*time.Second),
-			time.Duration(5*time.Second))
-		actual := flushinterval.Nanoseconds()
-
-		if actual > max {
-			t.Errorf("Didn't expect interval %d to be > %d", actual, max)
-			break
-		}
-		if actual < min {
-			t.Errorf("Didn't expect interval %d to be < %d", actual, min)
-			break
-		}
-	}
-}
-
-func TestAgent_ZeroBoth(t *testing.T) {
-	flushinterval := jitterInterval(time.Duration(0*time.Second),
-		time.Duration(0*time.Second))
-
-	actual := flushinterval
-	exp := time.Duration(500 * time.Millisecond)
-
-	if actual != exp {
-		t.Errorf("Actual %v, expected %v", actual, exp)
-	}
-}
-
-func TestAgent_JitterMax(t *testing.T) {
-	max := time.Duration(32 * time.Second).Nanoseconds()
-
-	for i := 0; i < 1000; i++ {
-		flushinterval := jitterInterval(time.Duration(30*time.Second),
-			time.Duration(2*time.Second))
-		actual := flushinterval.Nanoseconds()
-		if actual > max {
-			t.Errorf("Didn't expect interval %d to be > %d", actual, max)
-			break
-		}
-	}
-}
-
-func TestAgent_JitterMin(t *testing.T) {
-	min := time.Duration(30 * time.Second).Nanoseconds()
-
-	for i := 0; i < 1000; i++ {
-		flushinterval := jitterInterval(time.Duration(30*time.Second),
-			time.Duration(2*time.Second))
-		actual := flushinterval.Nanoseconds()
-		if actual < min {
-			t.Errorf("Didn't expect interval %d to be < %d", actual, min)
-			break
-		}
-	}
-}

circle.yml

@@ -4,16 +4,17 @@ machine:
   post:
     - sudo service zookeeper stop
     - go version
-    - go version | grep 1.5.1 || sudo rm -rf /usr/local/go
+    - go version | grep 1.6.2 || sudo rm -rf /usr/local/go
-    - wget https://storage.googleapis.com/golang/go1.5.1.linux-amd64.tar.gz
+    - wget https://storage.googleapis.com/golang/go1.6.2.linux-amd64.tar.gz
-    - sudo tar -C /usr/local -xzf go1.5.1.linux-amd64.tar.gz
+    - sudo tar -C /usr/local -xzf go1.6.2.linux-amd64.tar.gz
     - go version
 
 dependencies:
-  cache_directories:
-    - "~/telegraf-build/src"
   override:
     - docker info
+  post:
+    - gem install fpm
+    - sudo apt-get install -y rpm python-boto
 
 test:
   override:

cmd/telegraf/telegraf.go

@@ -7,146 +7,275 @@ import (
 	"os"
 	"os/signal"
 	"strings"
+	"syscall"
 
-	"github.com/influxdb/telegraf"
+	"github.com/influxdata/telegraf/agent"
-	"github.com/influxdb/telegraf/internal/config"
+	"github.com/influxdata/telegraf/internal/config"
-	_ "github.com/influxdb/telegraf/outputs/all"
+	"github.com/influxdata/telegraf/plugins/inputs"
-	_ "github.com/influxdb/telegraf/plugins/all"
+	_ "github.com/influxdata/telegraf/plugins/inputs/all"
+	"github.com/influxdata/telegraf/plugins/outputs"
+	_ "github.com/influxdata/telegraf/plugins/outputs/all"
 )
 
 var fDebug = flag.Bool("debug", false,
 	"show metrics as they're generated to stdout")
+var fQuiet = flag.Bool("quiet", false,
+	"run in quiet mode")
 var fTest = flag.Bool("test", false, "gather metrics, print them out, and exit")
 var fConfig = flag.String("config", "", "configuration file to load")
-var fConfigDirectory = flag.String("configdirectory", "",
+var fConfigDirectory = flag.String("config-directory", "",
 	"directory containing additional *.conf files")
 var fVersion = flag.Bool("version", false, "display the version")
 var fSampleConfig = flag.Bool("sample-config", false,
 	"print out full sample configuration")
 var fPidfile = flag.String("pidfile", "", "file to write our pid to")
-var fPLuginFilters = flag.String("filter", "",
+var fInputFilters = flag.String("input-filter", "",
-	"filter the plugins to enable, separator is :")
+	"filter the inputs to enable, separator is :")
-var fOutputFilters = flag.String("outputfilter", "",
+var fInputList = flag.Bool("input-list", false,
+	"print available input plugins.")
+var fOutputFilters = flag.String("output-filter", "",
 	"filter the outputs to enable, separator is :")
+var fOutputList = flag.Bool("output-list", false,
+	"print available output plugins.")
 var fUsage = flag.String("usage", "",
 	"print usage for a plugin, ie, 'telegraf -usage mysql'")
+var fInputFiltersLegacy = flag.String("filter", "",
+	"filter the inputs to enable, separator is :")
+var fOutputFiltersLegacy = flag.String("outputfilter", "",
+	"filter the outputs to enable, separator is :")
+var fConfigDirectoryLegacy = flag.String("configdirectory", "",
+	"directory containing additional *.conf files")
 
-// Telegraf version
+// Telegraf version, populated linker.
-//	-ldflags "-X main.Version=`git describe --always --tags`"
+//   ie, -ldflags "-X main.version=`git describe --always --tags`"
-var Version string
+var (
+	version string
+	commit  string
+	branch  string
+)
+
+const usage = `Telegraf, The plugin-driven server agent for collecting and reporting metrics.
+
+Usage:
+
+  telegraf <flags>
+
+The flags are:
+
+  -config <file>     configuration file to load
+  -test              gather metrics once, print them to stdout, and exit
+  -sample-config     print out full sample configuration to stdout
+  -config-directory  directory containing additional *.conf files
+  -input-filter      filter the input plugins to enable, separator is :
+  -input-list        print all the plugins inputs
+  -output-filter     filter the output plugins to enable, separator is :
+  -output-list       print all the available outputs
+  -usage             print usage for a plugin, ie, 'telegraf -usage mysql'
+  -debug             print metrics as they're generated to stdout
+  -quiet             run in quiet mode
+  -version           print the version to stdout
+
+In addition to the -config flag, telegraf will also load the config file from
+an environment variable or default location. Precedence is:
+  1. -config flag
+  2. $TELEGRAF_CONFIG_PATH environment variable
+  3. $HOME/.telegraf/telegraf.conf
+  4. /etc/telegraf/telegraf.conf
+
+Examples:
+
+  # generate a telegraf config file:
+  telegraf -sample-config > telegraf.conf
+
+  # generate config with only cpu input & influxdb output plugins defined
+  telegraf -sample-config -input-filter cpu -output-filter influxdb
+
+  # run a single telegraf collection, outputing metrics to stdout
+  telegraf -config telegraf.conf -test
+
+  # run telegraf with all plugins defined in config file
+  telegraf -config telegraf.conf
+
+  # run telegraf, enabling the cpu & memory input, and influxdb output plugins
+  telegraf -config telegraf.conf -input-filter cpu:mem -output-filter influxdb
+`
 
 func main() {
-	flag.Parse()
+	reload := make(chan bool, 1)
+	reload <- true
+	for <-reload {
+		reload <- false
+		flag.Usage = func() { usageExit(0) }
+		flag.Parse()
+		args := flag.Args()
 
-	var pluginFilters []string
+		var inputFilters []string
-	if *fPLuginFilters != "" {
+		if *fInputFiltersLegacy != "" {
-		pluginsFilter := strings.TrimSpace(*fPLuginFilters)
+			fmt.Printf("WARNING '--filter' flag is deprecated, please use" +
-		pluginFilters = strings.Split(":"+pluginsFilter+":", ":")
+				" '--input-filter'")
-	}
+			inputFilter := strings.TrimSpace(*fInputFiltersLegacy)
+			inputFilters = strings.Split(":"+inputFilter+":", ":")
+		}
+		if *fInputFilters != "" {
+			inputFilter := strings.TrimSpace(*fInputFilters)
+			inputFilters = strings.Split(":"+inputFilter+":", ":")
+		}
 
-	var outputFilters []string
+		var outputFilters []string
-	if *fOutputFilters != "" {
+		if *fOutputFiltersLegacy != "" {
-		outputFilter := strings.TrimSpace(*fOutputFilters)
+			fmt.Printf("WARNING '--outputfilter' flag is deprecated, please use" +
-		outputFilters = strings.Split(":"+outputFilter+":", ":")
+				" '--output-filter'")
-	}
+			outputFilter := strings.TrimSpace(*fOutputFiltersLegacy)
+			outputFilters = strings.Split(":"+outputFilter+":", ":")
+		}
+		if *fOutputFilters != "" {
+			outputFilter := strings.TrimSpace(*fOutputFilters)
+			outputFilters = strings.Split(":"+outputFilter+":", ":")
+		}
 
-	if *fVersion {
+		if len(args) > 0 {
-		v := fmt.Sprintf("Telegraf - Version %s", Version)
+			switch args[0] {
-		fmt.Println(v)
+			case "version":
-		return
+				v := fmt.Sprintf("Telegraf - version %s", version)
-	}
+				fmt.Println(v)
-
+				return
-	if *fSampleConfig {
+			case "config":
-		config.PrintSampleConfig(pluginFilters, outputFilters)
+				config.PrintSampleConfig(inputFilters, outputFilters)
-		return
+				return
-	}
-
-	if *fUsage != "" {
-		if err := config.PrintPluginConfig(*fUsage); err != nil {
-			if err2 := config.PrintOutputConfig(*fUsage); err2 != nil {
-				log.Fatalf("%s and %s", err, err2)
 			}
 		}
-		return
-	}
 
-	var (
+		if *fOutputList {
-		c   *config.Config
+			fmt.Println("Available Output Plugins:")
-		err error
+			for k, _ := range outputs.Outputs {
-	)
+				fmt.Printf("  %s\n", k)
+			}
+			return
+		}
 
-	if *fConfig != "" {
+		if *fInputList {
-		c = config.NewConfig()
+			fmt.Println("Available Input Plugins:")
+			for k, _ := range inputs.Inputs {
+				fmt.Printf("  %s\n", k)
+			}
+			return
+		}
+
+		if *fVersion {
+			v := fmt.Sprintf("Telegraf - version %s", version)
+			fmt.Println(v)
+			return
+		}
+
+		if *fSampleConfig {
+			config.PrintSampleConfig(inputFilters, outputFilters)
+			return
+		}
+
+		if *fUsage != "" {
+			if err := config.PrintInputConfig(*fUsage); err != nil {
+				if err2 := config.PrintOutputConfig(*fUsage); err2 != nil {
+					log.Fatalf("%s and %s", err, err2)
+				}
+			}
+			return
+		}
+
+		// If no other options are specified, load the config file and run.
+		c := config.NewConfig()
 		c.OutputFilters = outputFilters
-		c.PluginFilters = pluginFilters
+		c.InputFilters = inputFilters
-		err = c.LoadConfig(*fConfig)
+		err := c.LoadConfig(*fConfig)
+		if err != nil {
+			fmt.Println(err)
+			os.Exit(1)
+		}
+
+		if *fConfigDirectoryLegacy != "" {
+			fmt.Printf("WARNING '--configdirectory' flag is deprecated, please use" +
+				" '--config-directory'")
+			err = c.LoadDirectory(*fConfigDirectoryLegacy)
+			if err != nil {
+				log.Fatal(err)
+			}
+		}
+
+		if *fConfigDirectory != "" {
+			err = c.LoadDirectory(*fConfigDirectory)
+			if err != nil {
+				log.Fatal(err)
+			}
+		}
+		if len(c.Outputs) == 0 {
+			log.Fatalf("Error: no outputs found, did you provide a valid config file?")
+		}
+		if len(c.Inputs) == 0 {
+			log.Fatalf("Error: no inputs found, did you provide a valid config file?")
+		}
+
+		ag, err := agent.NewAgent(c)
 		if err != nil {
 			log.Fatal(err)
 		}
-	} else {
-		fmt.Println("Usage: Telegraf")
-		flag.PrintDefaults()
-		return
-	}
 
-	if *fConfigDirectory != "" {
+		if *fDebug {
-		err = c.LoadDirectory(*fConfigDirectory)
+			ag.Config.Agent.Debug = true
+		}
+
+		if *fQuiet {
+			ag.Config.Agent.Quiet = true
+		}
+
+		if *fTest {
+			err = ag.Test()
+			if err != nil {
+				log.Fatal(err)
+			}
+			return
+		}
+
+		err = ag.Connect()
 		if err != nil {
 			log.Fatal(err)
 		}
-	}
-	if len(c.Outputs) == 0 {
-		log.Fatalf("Error: no outputs found, did you provide a valid config file?")
-	}
-	if len(c.Plugins) == 0 {
-		log.Fatalf("Error: no plugins found, did you provide a valid config file?")
-	}
 
-	ag, err := telegraf.NewAgent(c)
+		shutdown := make(chan struct{})
-	if err != nil {
+		signals := make(chan os.Signal)
-		log.Fatal(err)
+		signal.Notify(signals, os.Interrupt, syscall.SIGHUP)
-	}
+		go func() {
+			sig := <-signals
+			if sig == os.Interrupt {
+				close(shutdown)
+			}
+			if sig == syscall.SIGHUP {
+				log.Printf("Reloading Telegraf config\n")
+				<-reload
+				reload <- true
+				close(shutdown)
+			}
+		}()
 
-	if *fDebug {
+		log.Printf("Starting Telegraf (version %s)\n", version)
-		ag.Config.Agent.Debug = true
+		log.Printf("Loaded outputs: %s", strings.Join(c.OutputNames(), " "))
-	}
+		log.Printf("Loaded inputs: %s", strings.Join(c.InputNames(), " "))
+		log.Printf("Tags enabled: %s", c.ListTags())
 
-	if *fTest {
+		if *fPidfile != "" {
-		err = ag.Test()
+			f, err := os.Create(*fPidfile)
-		if err != nil {
+			if err != nil {
-			log.Fatal(err)
+				log.Fatalf("Unable to create pidfile: %s", err)
-		}
+			}
-		return
-	}
 
-	err = ag.Connect()
+			fmt.Fprintf(f, "%d\n", os.Getpid())
-	if err != nil {
-		log.Fatal(err)
-	}
 
-	shutdown := make(chan struct{})
+			f.Close()
-	signals := make(chan os.Signal)
-	signal.Notify(signals, os.Interrupt)
-	go func() {
-		<-signals
-		close(shutdown)
-	}()
-
-	log.Printf("Starting Telegraf (version %s)\n", Version)
-	log.Printf("Loaded outputs: %s", strings.Join(c.OutputNames(), " "))
-	log.Printf("Loaded plugins: %s", strings.Join(c.PluginNames(), " "))
-	log.Printf("Tags enabled: %s", c.ListTags())
-
-	if *fPidfile != "" {
-		f, err := os.Create(*fPidfile)
-		if err != nil {
-			log.Fatalf("Unable to create pidfile: %s", err)
 		}
 
-		fmt.Fprintf(f, "%d\n", os.Getpid())
+		ag.Run(shutdown)
-
-		f.Close()
 	}
-
+}
-	ag.Run(shutdown)
+
+func usageExit(rc int) {
+	fmt.Println(usage)
+	os.Exit(rc)
 }

docs/CONFIGURATION.md

@@ -0,0 +1,277 @@
+# Telegraf Configuration
+
+## Generating a Configuration File
+
+A default Telegraf config file can be generated using the -sample-config flag:
+
+```
+telegraf -sample-config > telegraf.conf
+```
+
+To generate a file with specific inputs and outputs, you can use the
+-input-filter and -output-filter flags:
+
+```
+telegraf -sample-config -input-filter cpu:mem:net:swap -output-filter influxdb:kafka
+```
+
+You can see the latest config file with all available plugins here:
+[telegraf.conf](https://github.com/influxdata/telegraf/blob/master/etc/telegraf.conf)
+
+## Environment Variables
+
+Environment variables can be used anywhere in the config file, simply prepend
+them with $. For strings the variable must be within quotes (ie, "$STR_VAR"),
+for numbers and booleans they should be plain (ie, $INT_VAR, $BOOL_VAR)
+
+## `[global_tags]` Configuration
+
+Global tags can be specified in the `[global_tags]` section of the config file
+in key="value" format. All metrics being gathered on this host will be tagged
+with the tags specified here.
+
+## `[agent]` Configuration
+
+Telegraf has a few options you can configure under the `agent` section of the
+config.
+
+* **interval**: Default data collection interval for all inputs
+* **round_interval**: Rounds collection interval to 'interval'
+ie, if interval="10s" then always collect on :00, :10, :20, etc.
+* **metric_batch_size**: Telegraf will send metrics to output in batch of at
+most metric_batch_size metrics.
+* **metric_buffer_limit**: Telegraf will cache metric_buffer_limit metrics
+for each output, and will flush this buffer on a successful write.
+This should be a multiple of metric_batch_size and could not be less
+than 2 times metric_batch_size.
+* **collection_jitter**: Collection jitter is used to jitter
+the collection by a random amount.
+Each plugin will sleep for a random time within jitter before collecting.
+This can be used to avoid many plugins querying things like sysfs at the
+same time, which can have a measurable effect on the system.
+* **flush_interval**: Default data flushing interval for all outputs.
+You should not set this below
+interval. Maximum flush_interval will be flush_interval + flush_jitter
+* **flush_jitter**: Jitter the flush interval by a random amount.
+This is primarily to avoid
+large write spikes for users running a large number of telegraf instances.
+ie, a jitter of 5s and flush_interval 10s means flushes will happen every 10-15s.
+* **debug**: Run telegraf in debug mode.
+* **quiet**: Run telegraf in quiet mode.
+* **hostname**: Override default hostname, if empty use os.Hostname().
+
+#### Measurement Filtering
+
+Filters can be configured per input or output, see below for examples.
+
+* **namepass**: An array of strings that is used to filter metrics generated by the
+current input. Each string in the array is tested as a glob match against
+measurement names and if it matches, the field is emitted.
+* **namedrop**: The inverse of pass, if a measurement name matches, it is not emitted.
+* **fieldpass**: An array of strings that is used to filter metrics generated by the
+current input. Each string in the array is tested as a glob match against field names
+and if it matches, the field is emitted. fieldpass is not available for outputs.
+* **fielddrop**: The inverse of pass, if a field name matches, it is not emitted.
+fielddrop is not available for outputs.
+* **tagpass**: tag names and arrays of strings that are used to filter
+measurements by the current input. Each string in the array is tested as a glob
+match against the tag name, and if it matches the measurement is emitted.
+* **tagdrop**: The inverse of tagpass. If a tag matches, the measurement is not
+emitted. This is tested on measurements that have passed the tagpass test.
+* **tagexclude**: tagexclude can be used to exclude a tag from measurement(s).
+As opposed to tagdrop, which will drop an entire measurement based on it's
+tags, tagexclude simply strips the given tag keys from the measurement. This
+can be used on inputs & outputs, but it is _recommended_ to be used on inputs,
+as it is more efficient to filter out tags at the ingestion point.
+* **taginclude**: taginclude is the inverse of tagexclude. It will only include
+the tag keys in the final measurement.
+
+## Input Configuration
+
+Some configuration options are configurable per input:
+
+* **name_override**: Override the base name of the measurement.
+(Default is the name of the input).
+* **name_prefix**: Specifies a prefix to attach to the measurement name.
+* **name_suffix**: Specifies a suffix to attach to the measurement name.
+* **tags**: A map of tags to apply to a specific input's measurements.
+* **interval**: How often to gather this metric. Normal plugins use a single
+global interval, but if one particular input should be run less or more often,
+you can configure that here.
+
+#### Input Configuration Examples
+
+This is a full working config that will output CPU data to an InfluxDB instance
+at 192.168.59.103:8086, tagging measurements with dc="denver-1". It will output
+measurements at a 10s interval and will collect per-cpu data, dropping any
+fields which begin with `time_`.
+
+```toml
+[global_tags]
+  dc = "denver-1"
+
+[agent]
+  interval = "10s"
+
+# OUTPUTS
+[[outputs.influxdb]]
+  url = "http://192.168.59.103:8086" # required.
+  database = "telegraf" # required.
+  precision = "s"
+
+# INPUTS
+[[inputs.cpu]]
+  percpu = true
+  totalcpu = false
+  # filter all fields beginning with 'time_'
+  fielddrop = ["time_*"]
+```
+
+#### Input Config: tagpass and tagdrop
+
+```toml
+[[inputs.cpu]]
+  percpu = true
+  totalcpu = false
+  fielddrop = ["cpu_time"]
+  # Don't collect CPU data for cpu6 & cpu7
+  [inputs.cpu.tagdrop]
+    cpu = [ "cpu6", "cpu7" ]
+
+[[inputs.disk]]
+  [inputs.disk.tagpass]
+    # tagpass conditions are OR, not AND.
+    # If the (filesystem is ext4 or xfs) OR (the path is /opt or /home)
+    # then the metric passes
+    fstype = [ "ext4", "xfs" ]
+    # Globs can also be used on the tag values
+    path = [ "/opt", "/home*" ]
+```
+
+#### Input Config: fieldpass and fielddrop
+
+```toml
+# Drop all metrics for guest & steal CPU usage
+[[inputs.cpu]]
+  percpu = false
+  totalcpu = true
+  fielddrop = ["usage_guest", "usage_steal"]
+
+# Only store inode related metrics for disks
+[[inputs.disk]]
+  fieldpass = ["inodes*"]
+```
+
+#### Input Config: namepass and namedrop
+
+```toml
+# Drop all metrics about containers for kubelet
+[[inputs.prometheus]]
+  urls = ["http://kube-node-1:4194/metrics"]
+  namedrop = ["container_*"]
+
+# Only store rest client related metrics for kubelet
+[[inputs.prometheus]]
+  urls = ["http://kube-node-1:4194/metrics"]
+  namepass = ["rest_client_*"]
+```
+
+#### Input Config: taginclude and tagexclude
+
+```toml
+# Only include the "cpu" tag in the measurements for the cpu plugin.
+[[inputs.cpu]]
+  percpu = true
+  totalcpu = true
+  taginclude = ["cpu"]
+
+# Exclude the "fstype" tag from the measurements for the disk plugin.
+[[inputs.disk]]
+  tagexclude = ["fstype"]
+```
+
+#### Input config: prefix, suffix, and override
+
+This plugin will emit measurements with the name `cpu_total`
+
+```toml
+[[inputs.cpu]]
+  name_suffix = "_total"
+  percpu = false
+  totalcpu = true
+```
+
+This will emit measurements with the name `foobar`
+
+```toml
+[[inputs.cpu]]
+  name_override = "foobar"
+  percpu = false
+  totalcpu = true
+```
+
+#### Input config: tags
+
+This plugin will emit measurements with two additional tags: `tag1=foo` and
+`tag2=bar`
+
+NOTE: Order matters, the `[inputs.cpu.tags]` table must be at the _end_ of the
+plugin definition.
+
+```toml
+[[inputs.cpu]]
+  percpu = false
+  totalcpu = true
+  [inputs.cpu.tags]
+    tag1 = "foo"
+    tag2 = "bar"
+```
+
+#### Multiple inputs of the same type
+
+Additional inputs (or outputs) of the same type can be specified,
+just define more instances in the config file. It is highly recommended that
+you utilize `name_override`, `name_prefix`, or `name_suffix` config options
+to avoid measurement collisions:
+
+```toml
+[[inputs.cpu]]
+  percpu = false
+  totalcpu = true
+
+[[inputs.cpu]]
+  percpu = true
+  totalcpu = false
+  name_override = "percpu_usage"
+  fielddrop = ["cpu_time*"]
+```
+
+## Output Configuration
+
+Telegraf also supports specifying multiple output sinks to send data to,
+configuring each output sink is different, but examples can be
+found by running `telegraf -sample-config`.
+
+```toml
+[[outputs.influxdb]]
+  urls = [ "http://localhost:8086" ]
+  database = "telegraf"
+  precision = "s"
+  # Drop all measurements that start with "aerospike"
+  namedrop = ["aerospike*"]
+
+[[outputs.influxdb]]
+  urls = [ "http://localhost:8086" ]
+  database = "telegraf-aerospike-data"
+  precision = "s"
+  # Only accept aerospike data:
+  namepass = ["aerospike*"]
+
+[[outputs.influxdb]]
+  urls = [ "http://localhost:8086" ]
+  database = "telegraf-cpu0-data"
+  precision = "s"
+  # Only store measurements where the tag "cpu" matches the value "cpu0"
+  [outputs.influxdb.tagpass]
+    cpu = ["cpu0"]
+```

docs/DATA_FORMATS_INPUT.md

@@ -0,0 +1,374 @@
+# Telegraf Input Data Formats
+
+Telegraf is able to parse the following input data formats into metrics:
+
+1. [InfluxDB Line Protocol](https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md#influx)
+1. [JSON](https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md#json)
+1. [Graphite](https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md#graphite)
+1. [Value](https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md#value), ie: 45 or "booyah"
+1. [Nagios](https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md#nagios) (exec input only)
+
+Telegraf metrics, like InfluxDB
+[points](https://docs.influxdata.com/influxdb/v0.10/write_protocols/line/),
+are a combination of four basic parts:
+
+1. Measurement Name
+1. Tags
+1. Fields
+1. Timestamp
+
+These four parts are easily defined when using InfluxDB line-protocol as a
+data format. But there are other data formats that users may want to use which
+require more advanced configuration to create usable Telegraf metrics.
+
+Plugins such as `exec` and `kafka_consumer` parse textual data. Up until now,
+these plugins were statically configured to parse just a single
+data format. `exec` mostly only supported parsing JSON, and `kafka_consumer` only
+supported data in InfluxDB line-protocol.
+
+But now we are normalizing the parsing of various data formats across all
+plugins that can support it. You will be able to identify a plugin that supports
+different data formats by the presence of a `data_format` config option, for
+example, in the exec plugin:
+
+```toml
+[[inputs.exec]]
+  ## Commands array
+  commands = ["/tmp/test.sh", "/usr/bin/mycollector --foo=bar"]
+
+  ## measurement name suffix (for separating different commands)
+  name_suffix = "_mycollector"
+
+  ## Data format to consume.
+  ## Each data format has it's own unique set of configuration options, read
+  ## more about them here:
+  ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md
+  data_format = "json"
+
+  ## Additional configuration options go here
+```
+
+Each data_format has an additional set of configuration options available, which
+I'll go over below.
+
+# Influx:
+
+There are no additional configuration options for InfluxDB line-protocol. The
+metrics are parsed directly into Telegraf metrics.
+
+#### Influx Configuration:
+
+```toml
+[[inputs.exec]]
+  ## Commands array
+  commands = ["/tmp/test.sh", "/usr/bin/mycollector --foo=bar"]
+
+  ## measurement name suffix (for separating different commands)
+  name_suffix = "_mycollector"
+
+  ## Data format to consume.
+  ## Each data format has it's own unique set of configuration options, read
+  ## more about them here:
+  ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md
+  data_format = "influx"
+```
+
+# JSON:
+
+The JSON data format flattens JSON into metric _fields_.
+NOTE: Only numerical values are converted to fields, and they are converted
+into a float. strings are ignored unless specified as a tag_key (see below).
+
+So for example, this JSON:
+
+```json
+{
+    "a": 5,
+    "b": {
+        "c": 6
+    },
+    "ignored": "I'm a string"
+}
+```
+
+Would get translated into _fields_ of a measurement:
+
+```
+myjsonmetric a=5,b_c=6
+```
+
+The _measurement_ _name_ is usually the name of the plugin,
+but can be overridden using the `name_override` config option.
+
+#### JSON Configuration:
+
+The JSON data format supports specifying "tag keys". If specified, keys
+will be searched for in the root-level of the JSON blob. If the key(s) exist,
+they will be applied as tags to the Telegraf metrics.
+
+For example, if you had this configuration:
+
+```toml
+[[inputs.exec]]
+  ## Commands array
+  commands = ["/tmp/test.sh", "/usr/bin/mycollector --foo=bar"]
+
+  ## measurement name suffix (for separating different commands)
+  name_suffix = "_mycollector"
+
+  ## Data format to consume.
+  ## Each data format has it's own unique set of configuration options, read
+  ## more about them here:
+  ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md
+  data_format = "json"
+
+  ## List of tag names to extract from top-level of JSON server response
+  tag_keys = [
+    "my_tag_1",
+    "my_tag_2"
+  ]
+```
+
+with this JSON output from a command:
+
+```json
+{
+    "a": 5,
+    "b": {
+        "c": 6
+    },
+    "my_tag_1": "foo"
+}
+```
+
+Your Telegraf metrics would get tagged with "my_tag_1"
+
+```
+exec_mycollector,my_tag_1=foo a=5,b_c=6
+```
+
+# Value:
+
+The "value" data format translates single values into Telegraf metrics. This
+is done by assigning a measurement name and setting a single field ("value")
+as the parsed metric.
+
+#### Value Configuration:
+
+You **must** tell Telegraf what type of metric to collect by using the
+`data_type` configuration option. Available options are:
+
+1. integer
+2. float or long
+3. string
+4. boolean
+
+**Note:** It is also recommended that you set `name_override` to a measurement
+name that makes sense for your metric, otherwise it will just be set to the
+name of the plugin.
+
+```toml
+[[inputs.exec]]
+  ## Commands array
+  commands = ["cat /proc/sys/kernel/random/entropy_avail"]
+
+  ## override the default metric name of "exec"
+  name_override = "entropy_available"
+
+  ## Data format to consume.
+  ## Each data format has it's own unique set of configuration options, read
+  ## more about them here:
+  ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md
+  data_format = "value"
+  data_type = "integer" # required
+```
+
+# Graphite:
+
+The Graphite data format translates graphite _dot_ buckets directly into
+telegraf measurement names, with a single value field, and without any tags.
+By default, the separator is left as ".", but this can be changed using the
+"separator" argument. For more advanced options,
+Telegraf supports specifying "templates" to translate
+graphite buckets into Telegraf metrics.
+
+Templates are of the form:
+
+```
+"host.mytag.mytag.measurement.measurement.field*"
+```
+
+Where the following keywords exist:
+
+1. `measurement`: specifies that this section of the graphite bucket corresponds
+to the measurement name. This can be specified multiple times.
+2. `field`: specifies that this section of the graphite bucket corresponds
+to the field name. This can be specified multiple times.
+3. `measurement*`: specifies that all remaining elements of the graphite bucket
+correspond to the measurement name.
+4. `field*`: specifies that all remaining elements of the graphite bucket
+correspond to the field name.
+
+Any part of the template that is not a keyword is treated as a tag key. This
+can also be specified multiple times.
+
+NOTE: `field*` cannot be used in conjunction with `measurement*`!
+
+#### Measurement & Tag Templates:
+
+The most basic template is to specify a single transformation to apply to all
+incoming metrics. So the following template:
+
+```toml
+templates = [
+    "region.region.measurement*"
+]
+```
+
+would result in the following Graphite -> Telegraf transformation.
+
+```
+us.west.cpu.load 100
+=> cpu.load,region=us.west value=100
+```
+
+#### Field Templates:
+
+The field keyword tells Telegraf to give the metric that field name.
+So the following template:
+
+```toml
+separator = "_"
+templates = [
+    "measurement.measurement.field.field.region"
+]
+```
+
+would result in the following Graphite -> Telegraf transformation.
+
+```
+cpu.usage.idle.percent.eu-east 100
+=> cpu_usage,region=eu-east idle_percent=100
+```
+
+The field key can also be derived from all remaining elements of the graphite
+bucket by specifying `field*`:
+
+```toml
+separator = "_"
+templates = [
+    "measurement.measurement.region.field*"
+]
+```
+
+which would result in the following Graphite -> Telegraf transformation.
+
+```
+cpu.usage.eu-east.idle.percentage 100
+=> cpu_usage,region=eu-east idle_percentage=100
+```
+
+#### Filter Templates:
+
+Users can also filter the template(s) to use based on the name of the bucket,
+using glob matching, like so:
+
+```toml
+templates = [
+    "cpu.* measurement.measurement.region",
+    "mem.* measurement.measurement.host"
+]
+```
+
+which would result in the following transformation:
+
+```
+cpu.load.eu-east 100
+=> cpu_load,region=eu-east value=100
+
+mem.cached.localhost 256
+=> mem_cached,host=localhost value=256
+```
+
+#### Adding Tags:
+
+Additional tags can be added to a metric that don't exist on the received metric.
+You can add additional tags by specifying them after the pattern.
+Tags have the same format as the line protocol.
+Multiple tags are separated by commas.
+
+```toml
+templates = [
+    "measurement.measurement.field.region datacenter=1a"
+]
+```
+
+would result in the following Graphite -> Telegraf transformation.
+
+```
+cpu.usage.idle.eu-east 100
+=> cpu_usage,region=eu-east,datacenter=1a idle=100
+```
+
+There are many more options available,
+[More details can be found here](https://github.com/influxdata/influxdb/tree/master/services/graphite#templates)
+
+#### Graphite Configuration:
+
+```toml
+[[inputs.exec]]
+  ## Commands array
+  commands = ["/tmp/test.sh", "/usr/bin/mycollector --foo=bar"]
+
+  ## measurement name suffix (for separating different commands)
+  name_suffix = "_mycollector"
+
+  ## Data format to consume.
+  ## Each data format has it's own unique set of configuration options, read
+  ## more about them here:
+  ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md
+  data_format = "graphite"
+
+  ## This string will be used to join the matched values.
+  separator = "_"
+
+  ## Each template line requires a template pattern. It can have an optional
+  ## filter before the template and separated by spaces. It can also have optional extra
+  ## tags following the template. Multiple tags should be separated by commas and no spaces
+  ## similar to the line protocol format. There can be only one default template.
+  ## Templates support below format:
+  ## 1. filter + template
+  ## 2. filter + template + extra tag(s)
+  ## 3. filter + template with field key
+  ## 4. default template
+  templates = [
+    "*.app env.service.resource.measurement",
+    "stats.* .host.measurement* region=eu-east,agent=sensu",
+    "stats2.* .host.measurement.field",
+    "measurement*"
+  ]
+```
+
+# Nagios:
+
+There are no additional configuration options for Nagios line-protocol. The
+metrics are parsed directly into Telegraf metrics.
+
+Note: Nagios Input Data Formats is only supported in `exec` input plugin.
+
+#### Nagios Configuration:
+
+```toml
+[[inputs.exec]]
+  ## Commands array
+  commands = ["/usr/lib/nagios/plugins/check_load", "-w 5,6,7 -c 7,8,9"]
+
+  ## measurement name suffix (for separating different commands)
+  name_suffix = "_mycollector"
+
+  ## Data format to consume.
+  ## Each data format has it's own unique set of configuration options, read
+  ## more about them here:
+  ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md
+  data_format = "nagios"
+```

docs/DATA_FORMATS_OUTPUT.md

@@ -0,0 +1,150 @@
+# Telegraf Output Data Formats
+
+Telegraf is able to serialize metrics into the following output data formats:
+
+1. [InfluxDB Line Protocol](https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_OUTPUT.md#influx)
+1. [JSON](https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_OUTPUT.md#json)
+1. [Graphite](https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_OUTPUT.md#graphite)
+
+Telegraf metrics, like InfluxDB
+[points](https://docs.influxdata.com/influxdb/v0.10/write_protocols/line/),
+are a combination of four basic parts:
+
+1. Measurement Name
+1. Tags
+1. Fields
+1. Timestamp
+
+In InfluxDB line protocol, these 4 parts are easily defined in textual form:
+
+```
+measurement_name[,tag1=val1,...]  field1=val1[,field2=val2,...]  [timestamp]
+```
+
+For Telegraf outputs that write textual data (such as `kafka`, `mqtt`, and `file`),
+InfluxDB line protocol was originally the only available output format. But now
+we are normalizing telegraf metric "serializers" into a
+[plugin-like interface](https://github.com/influxdata/telegraf/tree/master/plugins/serializers)
+across all output plugins that can support it.
+You will be able to identify a plugin that supports different data formats
+by the presence of a `data_format`
+config option, for example, in the `file` output plugin:
+
+```toml
+[[outputs.file]]
+  ## Files to write to, "stdout" is a specially handled file.
+  files = ["stdout"]
+
+  ## Data format to output.
+  ## Each data format has it's own unique set of configuration options, read
+  ## more about them here:
+  ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_OUTPUT.md
+  data_format = "influx"
+
+  ## Additional configuration options go here
+```
+
+Each data_format has an additional set of configuration options available, which
+I'll go over below.
+
+# Influx:
+
+There are no additional configuration options for InfluxDB line-protocol. The
+metrics are serialized directly into InfluxDB line-protocol.
+
+### Influx Configuration:
+
+```toml
+[[outputs.file]]
+  ## Files to write to, "stdout" is a specially handled file.
+  files = ["stdout", "/tmp/metrics.out"]
+
+  ## Data format to output.
+  ## Each data format has it's own unique set of configuration options, read
+  ## more about them here:
+  ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_OUTPUT.md
+  data_format = "influx"
+```
+
+# Graphite:
+
+The Graphite data format translates Telegraf metrics into _dot_ buckets. A
+template can be specified for the output of Telegraf metrics into Graphite
+buckets. The default template is:
+
+```
+template = "host.tags.measurement.field"
+```
+
+In the above template, we have four parts:
+
+1. _host_ is a tag key. This can be any tag key that is in the Telegraf
+metric(s). If the key doesn't exist, it will be ignored. If it does exist, the
+tag value will be filled in.
+1. _tags_ is a special keyword that outputs all remaining tag values, separated
+by dots and in alphabetical order (by tag key). These will be filled after all
+tag keys are filled.
+1. _measurement_ is a special keyword that outputs the measurement name.
+1. _field_ is a special keyword that outputs the field name.
+
+Which means the following influx metric -> graphite conversion would happen:
+
+```
+cpu,cpu=cpu-total,dc=us-east-1,host=tars usage_idle=98.09,usage_user=0.89 1455320660004257758
+=>
+tars.cpu-total.us-east-1.cpu.usage_user 0.89 1455320690
+tars.cpu-total.us-east-1.cpu.usage_idle 98.09 1455320690
+```
+
+### Graphite Configuration:
+
+```toml
+[[outputs.file]]
+  ## Files to write to, "stdout" is a specially handled file.
+  files = ["stdout", "/tmp/metrics.out"]
+
+  ## Data format to output.
+  ## Each data format has it's own unique set of configuration options, read
+  ## more about them here:
+  ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_OUTPUT.md
+  data_format = "graphite"
+
+  # prefix each graphite bucket
+  prefix = "telegraf"
+  # graphite template
+  template = "host.tags.measurement.field"
+```
+
+# JSON:
+
+The JSON data format serialized Telegraf metrics in json format. The format is:
+
+```json
+{
+   "fields":{
+      "field_1":30,
+      "field_2":4,
+      "field_N":59,
+      "n_images":660
+   },
+   "name":"docker",
+   "tags":{
+      "host":"raynor"
+   },
+   "timestamp":1458229140
+}
+```
+
+### JSON Configuration:
+
+```toml
+[[outputs.file]]
+  ## Files to write to, "stdout" is a specially handled file.
+  files = ["stdout", "/tmp/metrics.out"]
+
+  ## Data format to output.
+  ## Each data format has it's own unique set of configuration options, read
+  ## more about them here:
+  ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_OUTPUT.md
+  data_format = "json"
+```

docs/LICENSE_OF_DEPENDENCIES.md

@@ -28,6 +28,5 @@
 - github.com/wvanbergen/kazoo-go [MIT LICENSE](https://github.com/wvanbergen/kazoo-go/blob/master/MIT-LICENSE)
 - gopkg.in/dancannon/gorethink.v1 [APACHE LICENSE](https://github.com/dancannon/gorethink/blob/v1.1.2/LICENSE)
 - gopkg.in/mgo.v2 [BSD LICENSE](https://github.com/go-mgo/mgo/blob/v2/LICENSE)
-- golang.org/x/crypto/* [BSD LICENSE](https://github.com/golang/crypto/blob/master/LICENSE)
+- golang.org/x/crypto/ [BSD LICENSE](https://github.com/golang/crypto/blob/master/LICENSE)
-- internal Glob function [MIT LICENSE](https://github.com/ryanuber/go-glob/blob/master/LICENSE)
 

docs/WINDOWS_SERVICE.md

@@ -0,0 +1,36 @@
+# Running Telegraf as a Windows Service
+
+If you have tried to install Go binaries as Windows Services with the **sc.exe**
+tool you may have seen that the service errors and stops running after a while.
+
+**NSSM** (the Non-Sucking Service Manager) is a tool that helps you in a 
+[number of scenarios](http://nssm.cc/scenarios) including running Go binaries
+that were not specifically designed to run only in Windows platforms.
+
+## NSSM Installation via Chocolatey
+
+You can install [Chocolatey](https://chocolatey.org/) and [NSSM](http://nssm.cc/) 
+with these commands
+
+```powershell
+iex ((new-object net.webclient).DownloadString('https://chocolatey.org/install.ps1'))
+choco install -y nssm
+```
+
+## Installing Telegraf as a Windows Service with NSSM
+
+You can download the latest Telegraf Windows binaries (still Experimental at 
+the moment) from [the Telegraf Github repo](https://github.com/influxdata/telegraf).
+
+Then you can create a C:\telegraf folder, unzip the binary there and modify the 
+**telegraf.conf** sample to allocate the metrics you want to send to **InfluxDB**.
+
+Once you have NSSM installed in your system, the process is quite straightforward.
+You only need to type this command in your Windows shell
+
+```powershell
+nssm install Telegraf c:\telegraf\telegraf.exe -config c:\telegraf\telegraf.config
+```
+
+And now your service will be installed in Windows and you will be able to start and
+stop it gracefully

etc/telegraf_windows.conf

@@ -0,0 +1,164 @@
+# Telegraf configuration
+
+# Telegraf is entirely plugin driven. All metrics are gathered from the
+# declared inputs, and sent to the declared outputs.
+
+# Plugins must be declared in here to be active.
+# To deactivate a plugin, comment out the name and any variables.
+
+# Use 'telegraf -config telegraf.conf -test' to see what metrics a config
+# file would generate.
+
+# Global tags can be specified here in key="value" format.
+[global_tags]
+  # dc = "us-east-1" # will tag all metrics with dc=us-east-1
+  # rack = "1a"
+
+# Configuration for telegraf agent
+[agent]
+  ## Default data collection interval for all inputs
+  interval = "10s"
+  ## Rounds collection interval to 'interval'
+  ## ie, if interval="10s" then always collect on :00, :10, :20, etc.
+  round_interval = true
+
+  ## Telegraf will cache metric_buffer_limit metrics for each output, and will
+  ## flush this buffer on a successful write.
+  metric_buffer_limit = 1000
+  ## Flush the buffer whenever full, regardless of flush_interval.
+  flush_buffer_when_full = true
+
+  ## Collection jitter is used to jitter the collection by a random amount.
+  ## Each plugin will sleep for a random time within jitter before collecting.
+  ## This can be used to avoid many plugins querying things like sysfs at the
+  ## same time, which can have a measurable effect on the system.
+  collection_jitter = "0s"
+
+  ## Default flushing interval for all outputs. You shouldn't set this below
+  ## interval. Maximum flush_interval will be flush_interval + flush_jitter
+  flush_interval = "10s"
+  ## Jitter the flush interval by a random amount. This is primarily to avoid
+  ## large write spikes for users running a large number of telegraf instances.
+  ## ie, a jitter of 5s and interval 10s means flushes will happen every 10-15s
+  flush_jitter = "0s"
+
+  ## Run telegraf in debug mode
+  debug = false
+  ## Run telegraf in quiet mode
+  quiet = false
+  ## Override default hostname, if empty use os.Hostname()
+  hostname = ""
+
+
+###############################################################################
+#                                  OUTPUTS                                    #
+###############################################################################
+
+# Configuration for influxdb server to send metrics to
+[[outputs.influxdb]]
+  # The full HTTP or UDP endpoint URL for your InfluxDB instance.
+  # Multiple urls can be specified but it is assumed that they are part of the same
+  # cluster, this means that only ONE of the urls will be written to each interval.
+  # urls = ["udp://localhost:8089"] # UDP endpoint example
+  urls = ["http://localhost:8086"] # required
+  # The target database for metrics (telegraf will create it if not exists)
+  database = "telegraf" # required
+  # Precision of writes, valid values are "ns", "us" (or "µs"), "ms", "s", "m", "h".
+  # note: using second precision greatly helps InfluxDB compression
+  precision = "s"
+
+  ## Write timeout (for the InfluxDB client), formatted as a string.
+  ## If not provided, will default to 5s. 0s means no timeout (not recommended).
+  timeout = "5s"
+  # username = "telegraf"
+  # password = "metricsmetricsmetricsmetrics"
+  # Set the user agent for HTTP POSTs (can be useful for log differentiation)
+  # user_agent = "telegraf"
+  # Set UDP payload size, defaults to InfluxDB UDP Client default (512 bytes)
+  # udp_payload = 512
+
+
+###############################################################################
+#                                  INPUTS                                     #
+###############################################################################
+
+# Windows Performance Counters plugin.
+# These are the recommended method of monitoring system metrics on windows,
+# as the regular system plugins (inputs.cpu, inputs.mem, etc.) rely on WMI,
+# which utilizes a lot of system resources.
+#
+# See more configuration examples at:
+#   https://github.com/influxdata/telegraf/tree/master/plugins/inputs/win_perf_counters
+
+[[inputs.win_perf_counters]]
+  [[inputs.win_perf_counters.object]]
+    # Processor usage, alternative to native, reports on a per core.
+    ObjectName = "Processor"
+    Instances = ["*"]
+    Counters = ["% Idle Time", "% Interrupt Time", "% Privileged Time", "% User Time", "% Processor Time"]
+    Measurement = "win_cpu"
+    #IncludeTotal=false #Set to true to include _Total instance when querying for all (*).
+
+  [[inputs.win_perf_counters.object]]
+    # Disk times and queues
+    ObjectName = "LogicalDisk"
+    Instances = ["*"]
+    Counters = ["% Idle Time", "% Disk Time","% Disk Read Time", "% Disk Write Time", "% User Time", "Current Disk Queue Length"]
+    Measurement = "win_disk"
+    #IncludeTotal=false #Set to true to include _Total instance when querying for all (*).
+
+  [[inputs.win_perf_counters.object]]
+    ObjectName = "System"
+    Counters = ["Context Switches/sec","System Calls/sec"]
+    Instances = ["------"]
+    Measurement = "win_system"
+    #IncludeTotal=false #Set to true to include _Total instance when querying for all (*).
+
+  [[inputs.win_perf_counters.object]]
+    # Example query where the Instance portion must be removed to get data back, such as from the Memory object.
+    ObjectName = "Memory"
+    Counters = ["Available Bytes","Cache Faults/sec","Demand Zero Faults/sec","Page Faults/sec","Pages/sec","Transition Faults/sec","Pool Nonpaged Bytes","Pool Paged Bytes"]
+    Instances = ["------"] # Use 6 x - to remove the Instance bit from the query.
+    Measurement = "win_mem"
+    #IncludeTotal=false #Set to true to include _Total instance when querying for all (*).
+
+
+# Windows system plugins using WMI (disabled by default, using
+# win_perf_counters over WMI is recommended)
+
+# Read metrics about cpu usage
+#[[inputs.cpu]]
+  ## Whether to report per-cpu stats or not
+  #percpu = true
+  ## Whether to report total system cpu stats or not
+  #totalcpu = true
+  ## Comment this line if you want the raw CPU time metrics
+  #fielddrop = ["time_*"]
+
+# Read metrics about disk usage by mount point
+#[[inputs.disk]]
+  ## By default, telegraf gather stats for all mountpoints.
+  ## Setting mountpoints will restrict the stats to the specified mountpoints.
+  ## mount_points=["/"]
+
+  ## Ignore some mountpoints by filesystem type. For example (dev)tmpfs (usually
+  ## present on /run, /var/run, /dev/shm or /dev).
+  #ignore_fs = ["tmpfs", "devtmpfs"]
+
+# Read metrics about disk IO by device
+#[[inputs.diskio]]
+  ## By default, telegraf will gather stats for all devices including
+  ## disk partitions.
+  ## Setting devices will restrict the stats to the specified devices.
+  ## devices = ["sda", "sdb"]
+  ## Uncomment the following line if you do not need disk serial numbers.
+  ## skip_serial_number = true
+
+# Read metrics about memory usage
+#[[inputs.mem]]
+  # no configuration
+
+# Read metrics about swap memory usage
+#[[inputs.swap]]
+  # no configuration
+

input.go

@@ -0,0 +1,31 @@
+package telegraf
+
+type Input interface {
+	// SampleConfig returns the default configuration of the Input
+	SampleConfig() string
+
+	// Description returns a one-sentence description on the Input
+	Description() string
+
+	// Gather takes in an accumulator and adds the metrics that the Input
+	// gathers. This is called every "interval"
+	Gather(Accumulator) error
+}
+
+type ServiceInput interface {
+	// SampleConfig returns the default configuration of the Input
+	SampleConfig() string
+
+	// Description returns a one-sentence description on the Input
+	Description() string
+
+	// Gather takes in an accumulator and adds the metrics that the Input
+	// gathers. This is called every "interval"
+	Gather(Accumulator) error
+
+	// Start starts the ServiceInput's service, whatever that may be
+	Start(Accumulator) error
+
+	// Stop stops the services and closes any necessary channels and connections
+	Stop()
+}

internal/buffer/buffer.go

@@ -0,0 +1,77 @@
+package buffer
+
+import (
+	"github.com/influxdata/telegraf"
+)
+
+// Buffer is an object for storing metrics in a circular buffer.
+type Buffer struct {
+	buf chan telegraf.Metric
+	// total dropped metrics
+	drops int
+	// total metrics added
+	total int
+}
+
+// NewBuffer returns a Buffer
+//   size is the maximum number of metrics that Buffer will cache. If Add is
+//   called when the buffer is full, then the oldest metric(s) will be dropped.
+func NewBuffer(size int) *Buffer {
+	return &Buffer{
+		buf: make(chan telegraf.Metric, size),
+	}
+}
+
+// IsEmpty returns true if Buffer is empty.
+func (b *Buffer) IsEmpty() bool {
+	return len(b.buf) == 0
+}
+
+// Len returns the current length of the buffer.
+func (b *Buffer) Len() int {
+	return len(b.buf)
+}
+
+// Drops returns the total number of dropped metrics that have occured in this
+// buffer since instantiation.
+func (b *Buffer) Drops() int {
+	return b.drops
+}
+
+// Total returns the total number of metrics that have been added to this buffer.
+func (b *Buffer) Total() int {
+	return b.total
+}
+
+// Add adds metrics to the buffer.
+func (b *Buffer) Add(metrics ...telegraf.Metric) {
+	for i, _ := range metrics {
+		b.total++
+		select {
+		case b.buf <- metrics[i]:
+		default:
+			b.drops++
+			<-b.buf
+			b.buf <- metrics[i]
+		}
+	}
+}
+
+// Batch returns a batch of metrics of size batchSize.
+// the batch will be of maximum length batchSize. It can be less than batchSize,
+// if the length of Buffer is less than batchSize.
+func (b *Buffer) Batch(batchSize int) []telegraf.Metric {
+	n := min(len(b.buf), batchSize)
+	out := make([]telegraf.Metric, n)
+	for i := 0; i < n; i++ {
+		out[i] = <-b.buf
+	}
+	return out
+}
+
+func min(a, b int) int {
+	if b < a {
+		return b
+	}
+	return a
+}

internal/buffer/buffer_test.go

@@ -0,0 +1,94 @@
+package buffer
+
+import (
+	"testing"
+
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/testutil"
+
+	"github.com/stretchr/testify/assert"
+)
+
+var metricList = []telegraf.Metric{
+	testutil.TestMetric(2, "mymetric1"),
+	testutil.TestMetric(1, "mymetric2"),
+	testutil.TestMetric(11, "mymetric3"),
+	testutil.TestMetric(15, "mymetric4"),
+	testutil.TestMetric(8, "mymetric5"),
+}
+
+func BenchmarkAddMetrics(b *testing.B) {
+	buf := NewBuffer(10000)
+	m := testutil.TestMetric(1, "mymetric")
+	for n := 0; n < b.N; n++ {
+		buf.Add(m)
+	}
+}
+
+func TestNewBufferBasicFuncs(t *testing.T) {
+	b := NewBuffer(10)
+
+	assert.True(t, b.IsEmpty())
+	assert.Zero(t, b.Len())
+	assert.Zero(t, b.Drops())
+	assert.Zero(t, b.Total())
+
+	m := testutil.TestMetric(1, "mymetric")
+	b.Add(m)
+	assert.False(t, b.IsEmpty())
+	assert.Equal(t, b.Len(), 1)
+	assert.Equal(t, b.Drops(), 0)
+	assert.Equal(t, b.Total(), 1)
+
+	b.Add(metricList...)
+	assert.False(t, b.IsEmpty())
+	assert.Equal(t, b.Len(), 6)
+	assert.Equal(t, b.Drops(), 0)
+	assert.Equal(t, b.Total(), 6)
+}
+
+func TestDroppingMetrics(t *testing.T) {
+	b := NewBuffer(10)
+
+	// Add up to the size of the buffer
+	b.Add(metricList...)
+	b.Add(metricList...)
+	assert.False(t, b.IsEmpty())
+	assert.Equal(t, b.Len(), 10)
+	assert.Equal(t, b.Drops(), 0)
+	assert.Equal(t, b.Total(), 10)
+
+	// Add 5 more and verify they were dropped
+	b.Add(metricList...)
+	assert.False(t, b.IsEmpty())
+	assert.Equal(t, b.Len(), 10)
+	assert.Equal(t, b.Drops(), 5)
+	assert.Equal(t, b.Total(), 15)
+}
+
+func TestGettingBatches(t *testing.T) {
+	b := NewBuffer(20)
+
+	// Verify that the buffer returned is smaller than requested when there are
+	// not as many items as requested.
+	b.Add(metricList...)
+	batch := b.Batch(10)
+	assert.Len(t, batch, 5)
+
+	// Verify that the buffer is now empty
+	assert.True(t, b.IsEmpty())
+	assert.Zero(t, b.Len())
+	assert.Zero(t, b.Drops())
+	assert.Equal(t, b.Total(), 5)
+
+	// Verify that the buffer returned is not more than the size requested
+	b.Add(metricList...)
+	batch = b.Batch(3)
+	assert.Len(t, batch, 3)
+
+	// Verify that buffer is not empty
+	assert.False(t, b.IsEmpty())
+	assert.Equal(t, b.Len(), 2)
+	assert.Equal(t, b.Drops(), 0)
+	assert.Equal(t, b.Total(), 10)
+}

internal/config/aws/credentials.go

@@ -0,0 +1,49 @@
+package aws
+
+import (
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/client"
+	"github.com/aws/aws-sdk-go/aws/credentials"
+	"github.com/aws/aws-sdk-go/aws/credentials/stscreds"
+	"github.com/aws/aws-sdk-go/aws/session"
+)
+
+type CredentialConfig struct {
+	Region    string
+	AccessKey string
+	SecretKey string
+	RoleARN   string
+	Profile   string
+	Filename  string
+	Token     string
+}
+
+func (c *CredentialConfig) Credentials() client.ConfigProvider {
+	if c.RoleARN != "" {
+		return c.assumeCredentials()
+	} else {
+		return c.rootCredentials()
+	}
+}
+
+func (c *CredentialConfig) rootCredentials() client.ConfigProvider {
+	config := &aws.Config{
+		Region: aws.String(c.Region),
+	}
+	if c.AccessKey != "" || c.SecretKey != "" {
+		config.Credentials = credentials.NewStaticCredentials(c.AccessKey, c.SecretKey, c.Token)
+	} else if c.Profile != "" || c.Filename != "" {
+		config.Credentials = credentials.NewSharedCredentials(c.Filename, c.Profile)
+	}
+
+	return session.New(config)
+}
+
+func (c *CredentialConfig) assumeCredentials() client.ConfigProvider {
+	rootCredentials := c.rootCredentials()
+	config := &aws.Config{
+		Region: aws.String(c.Region),
+	}
+	config.Credentials = stscreds.NewCredentials(rootCredentials, c.RoleARN)
+	return session.New(config)
+}

internal/config/config_test.go

@@ -1,48 +1,101 @@
 package config
 
 import (
+	"os"
 	"testing"
 	"time"
 
-	"github.com/influxdb/telegraf/plugins"
+	"github.com/influxdata/telegraf/internal/models"
-	"github.com/influxdb/telegraf/plugins/exec"
+	"github.com/influxdata/telegraf/plugins/inputs"
-	"github.com/influxdb/telegraf/plugins/memcached"
+	"github.com/influxdata/telegraf/plugins/inputs/exec"
-	"github.com/influxdb/telegraf/plugins/procstat"
+	"github.com/influxdata/telegraf/plugins/inputs/memcached"
+	"github.com/influxdata/telegraf/plugins/inputs/procstat"
+	"github.com/influxdata/telegraf/plugins/parsers"
+
 	"github.com/stretchr/testify/assert"
 )
 
-func TestConfig_LoadSinglePlugin(t *testing.T) {
+func TestConfig_LoadSingleInputWithEnvVars(t *testing.T) {
+	c := NewConfig()
+	err := os.Setenv("MY_TEST_SERVER", "192.168.1.1")
+	assert.NoError(t, err)
+	err = os.Setenv("TEST_INTERVAL", "10s")
+	assert.NoError(t, err)
+	c.LoadConfig("./testdata/single_plugin_env_vars.toml")
+
+	memcached := inputs.Inputs["memcached"]().(*memcached.Memcached)
+	memcached.Servers = []string{"192.168.1.1"}
+
+	filter := internal_models.Filter{
+		NameDrop:  []string{"metricname2"},
+		NamePass:  []string{"metricname1"},
+		FieldDrop: []string{"other", "stuff"},
+		FieldPass: []string{"some", "strings"},
+		TagDrop: []internal_models.TagFilter{
+			internal_models.TagFilter{
+				Name:   "badtag",
+				Filter: []string{"othertag"},
+			},
+		},
+		TagPass: []internal_models.TagFilter{
+			internal_models.TagFilter{
+				Name:   "goodtag",
+				Filter: []string{"mytag"},
+			},
+		},
+		IsActive: true,
+	}
+	assert.NoError(t, filter.CompileFilter())
+	mConfig := &internal_models.InputConfig{
+		Name:     "memcached",
+		Filter:   filter,
+		Interval: 10 * time.Second,
+	}
+	mConfig.Tags = make(map[string]string)
+
+	assert.Equal(t, memcached, c.Inputs[0].Input,
+		"Testdata did not produce a correct memcached struct.")
+	assert.Equal(t, mConfig, c.Inputs[0].Config,
+		"Testdata did not produce correct memcached metadata.")
+}
+
+func TestConfig_LoadSingleInput(t *testing.T) {
 	c := NewConfig()
 	c.LoadConfig("./testdata/single_plugin.toml")
 
-	memcached := plugins.Plugins["memcached"]().(*memcached.Memcached)
+	memcached := inputs.Inputs["memcached"]().(*memcached.Memcached)
 	memcached.Servers = []string{"localhost"}
 
-	mConfig := &PluginConfig{
+	filter := internal_models.Filter{
-		Name: "memcached",
+		NameDrop:  []string{"metricname2"},
-		Filter: Filter{
+		NamePass:  []string{"metricname1"},
-			Drop: []string{"other", "stuff"},
+		FieldDrop: []string{"other", "stuff"},
-			Pass: []string{"some", "strings"},
+		FieldPass: []string{"some", "strings"},
-			TagDrop: []TagFilter{
+		TagDrop: []internal_models.TagFilter{
-				TagFilter{
+			internal_models.TagFilter{
-					Name:   "badtag",
+				Name:   "badtag",
-					Filter: []string{"othertag"},
+				Filter: []string{"othertag"},
-				},
 			},
-			TagPass: []TagFilter{
-				TagFilter{
-					Name:   "goodtag",
-					Filter: []string{"mytag"},
-				},
-			},
-			IsActive: true,
 		},
+		TagPass: []internal_models.TagFilter{
+			internal_models.TagFilter{
+				Name:   "goodtag",
+				Filter: []string{"mytag"},
+			},
+		},
+		IsActive: true,
+	}
+	assert.NoError(t, filter.CompileFilter())
+	mConfig := &internal_models.InputConfig{
+		Name:     "memcached",
+		Filter:   filter,
 		Interval: 5 * time.Second,
 	}
+	mConfig.Tags = make(map[string]string)
 
-	assert.Equal(t, memcached, c.Plugins[0].Plugin,
+	assert.Equal(t, memcached, c.Inputs[0].Input,
 		"Testdata did not produce a correct memcached struct.")
-	assert.Equal(t, mConfig, c.Plugins[0].Config,
+	assert.Equal(t, mConfig, c.Inputs[0].Config,
 		"Testdata did not produce correct memcached metadata.")
 }
 
@@ -57,240 +110,70 @@ func TestConfig_LoadDirectory(t *testing.T) {
 		t.Error(err)
 	}
 
-	memcached := plugins.Plugins["memcached"]().(*memcached.Memcached)
+	memcached := inputs.Inputs["memcached"]().(*memcached.Memcached)
 	memcached.Servers = []string{"localhost"}
 
-	mConfig := &PluginConfig{
+	filter := internal_models.Filter{
-		Name: "memcached",
+		NameDrop:  []string{"metricname2"},
-		Filter: Filter{
+		NamePass:  []string{"metricname1"},
-			Drop: []string{"other", "stuff"},
+		FieldDrop: []string{"other", "stuff"},
-			Pass: []string{"some", "strings"},
+		FieldPass: []string{"some", "strings"},
-			TagDrop: []TagFilter{
+		TagDrop: []internal_models.TagFilter{
-				TagFilter{
+			internal_models.TagFilter{
-					Name:   "badtag",
+				Name:   "badtag",
-					Filter: []string{"othertag"},
+				Filter: []string{"othertag"},
-				},
 			},
-			TagPass: []TagFilter{
-				TagFilter{
-					Name:   "goodtag",
-					Filter: []string{"mytag"},
-				},
-			},
-			IsActive: true,
 		},
+		TagPass: []internal_models.TagFilter{
+			internal_models.TagFilter{
+				Name:   "goodtag",
+				Filter: []string{"mytag"},
+			},
+		},
+		IsActive: true,
+	}
+	assert.NoError(t, filter.CompileFilter())
+	mConfig := &internal_models.InputConfig{
+		Name:     "memcached",
+		Filter:   filter,
 		Interval: 5 * time.Second,
 	}
-	assert.Equal(t, memcached, c.Plugins[0].Plugin,
+	mConfig.Tags = make(map[string]string)
+
+	assert.Equal(t, memcached, c.Inputs[0].Input,
 		"Testdata did not produce a correct memcached struct.")
-	assert.Equal(t, mConfig, c.Plugins[0].Config,
+	assert.Equal(t, mConfig, c.Inputs[0].Config,
 		"Testdata did not produce correct memcached metadata.")
 
-	ex := plugins.Plugins["exec"]().(*exec.Exec)
+	ex := inputs.Inputs["exec"]().(*exec.Exec)
-	ex.Commands = []*exec.Command{
+	p, err := parsers.NewJSONParser("exec", nil, nil)
-		&exec.Command{
+	assert.NoError(t, err)
-			Command: "/usr/bin/myothercollector --foo=bar",
+	ex.SetParser(p)
-			Name:    "myothercollector",
+	ex.Command = "/usr/bin/myothercollector --foo=bar"
-		},
+	eConfig := &internal_models.InputConfig{
+		Name:              "exec",
+		MeasurementSuffix: "_myothercollector",
 	}
-	eConfig := &PluginConfig{Name: "exec"}
+	eConfig.Tags = make(map[string]string)
-	assert.Equal(t, ex, c.Plugins[1].Plugin,
+	assert.Equal(t, ex, c.Inputs[1].Input,
 		"Merged Testdata did not produce a correct exec struct.")
-	assert.Equal(t, eConfig, c.Plugins[1].Config,
+	assert.Equal(t, eConfig, c.Inputs[1].Config,
 		"Merged Testdata did not produce correct exec metadata.")
 
 	memcached.Servers = []string{"192.168.1.1"}
-	assert.Equal(t, memcached, c.Plugins[2].Plugin,
+	assert.Equal(t, memcached, c.Inputs[2].Input,
 		"Testdata did not produce a correct memcached struct.")
-	assert.Equal(t, mConfig, c.Plugins[2].Config,
+	assert.Equal(t, mConfig, c.Inputs[2].Config,
 		"Testdata did not produce correct memcached metadata.")
 
-	pstat := plugins.Plugins["procstat"]().(*procstat.Procstat)
+	pstat := inputs.Inputs["procstat"]().(*procstat.Procstat)
-	pstat.Specifications = []*procstat.Specification{
+	pstat.PidFile = "/var/run/grafana-server.pid"
-		&procstat.Specification{
-			PidFile: "/var/run/grafana-server.pid",
-		},
-		&procstat.Specification{
-			PidFile: "/var/run/influxdb/influxd.pid",
-		},
-	}
 
-	pConfig := &PluginConfig{Name: "procstat"}
+	pConfig := &internal_models.InputConfig{Name: "procstat"}
+	pConfig.Tags = make(map[string]string)
 
-	assert.Equal(t, pstat, c.Plugins[3].Plugin,
+	assert.Equal(t, pstat, c.Inputs[3].Input,
 		"Merged Testdata did not produce a correct procstat struct.")
-	assert.Equal(t, pConfig, c.Plugins[3].Config,
+	assert.Equal(t, pConfig, c.Inputs[3].Config,
 		"Merged Testdata did not produce correct procstat metadata.")
 }
-
-func TestFilter_Empty(t *testing.T) {
-	f := Filter{}
-
-	measurements := []string{
-		"foo",
-		"bar",
-		"barfoo",
-		"foo_bar",
-		"foo.bar",
-		"foo-bar",
-		"supercalifradjulisticexpialidocious",
-	}
-
-	for _, measurement := range measurements {
-		if !f.ShouldPass(measurement) {
-			t.Errorf("Expected measurement %s to pass", measurement)
-		}
-	}
-}
-
-func TestFilter_Pass(t *testing.T) {
-	f := Filter{
-		Pass: []string{"foo*", "cpu_usage_idle"},
-	}
-
-	passes := []string{
-		"foo",
-		"foo_bar",
-		"foo.bar",
-		"foo-bar",
-		"cpu_usage_idle",
-	}
-
-	drops := []string{
-		"bar",
-		"barfoo",
-		"bar_foo",
-		"cpu_usage_busy",
-	}
-
-	for _, measurement := range passes {
-		if !f.ShouldPass(measurement) {
-			t.Errorf("Expected measurement %s to pass", measurement)
-		}
-	}
-
-	for _, measurement := range drops {
-		if f.ShouldPass(measurement) {
-			t.Errorf("Expected measurement %s to drop", measurement)
-		}
-	}
-}
-
-func TestFilter_Drop(t *testing.T) {
-	f := Filter{
-		Drop: []string{"foo*", "cpu_usage_idle"},
-	}
-
-	drops := []string{
-		"foo",
-		"foo_bar",
-		"foo.bar",
-		"foo-bar",
-		"cpu_usage_idle",
-	}
-
-	passes := []string{
-		"bar",
-		"barfoo",
-		"bar_foo",
-		"cpu_usage_busy",
-	}
-
-	for _, measurement := range passes {
-		if !f.ShouldPass(measurement) {
-			t.Errorf("Expected measurement %s to pass", measurement)
-		}
-	}
-
-	for _, measurement := range drops {
-		if f.ShouldPass(measurement) {
-			t.Errorf("Expected measurement %s to drop", measurement)
-		}
-	}
-}
-
-func TestFilter_TagPass(t *testing.T) {
-	filters := []TagFilter{
-		TagFilter{
-			Name:   "cpu",
-			Filter: []string{"cpu-*"},
-		},
-		TagFilter{
-			Name:   "mem",
-			Filter: []string{"mem_free"},
-		}}
-	f := Filter{
-		TagPass: filters,
-	}
-
-	passes := []map[string]string{
-		{"cpu": "cpu-total"},
-		{"cpu": "cpu-0"},
-		{"cpu": "cpu-1"},
-		{"cpu": "cpu-2"},
-		{"mem": "mem_free"},
-	}
-
-	drops := []map[string]string{
-		{"cpu": "cputotal"},
-		{"cpu": "cpu0"},
-		{"cpu": "cpu1"},
-		{"cpu": "cpu2"},
-		{"mem": "mem_used"},
-	}
-
-	for _, tags := range passes {
-		if !f.ShouldTagsPass(tags) {
-			t.Errorf("Expected tags %v to pass", tags)
-		}
-	}
-
-	for _, tags := range drops {
-		if f.ShouldTagsPass(tags) {
-			t.Errorf("Expected tags %v to drop", tags)
-		}
-	}
-}
-
-func TestFilter_TagDrop(t *testing.T) {
-	filters := []TagFilter{
-		TagFilter{
-			Name:   "cpu",
-			Filter: []string{"cpu-*"},
-		},
-		TagFilter{
-			Name:   "mem",
-			Filter: []string{"mem_free"},
-		}}
-	f := Filter{
-		TagDrop: filters,
-	}
-
-	drops := []map[string]string{
-		{"cpu": "cpu-total"},
-		{"cpu": "cpu-0"},
-		{"cpu": "cpu-1"},
-		{"cpu": "cpu-2"},
-		{"mem": "mem_free"},
-	}
-
-	passes := []map[string]string{
-		{"cpu": "cputotal"},
-		{"cpu": "cpu0"},
-		{"cpu": "cpu1"},
-		{"cpu": "cpu2"},
-		{"mem": "mem_used"},
-	}
-
-	for _, tags := range passes {
-		if !f.ShouldTagsPass(tags) {
-			t.Errorf("Expected tags %v to pass", tags)
-		}
-	}
-
-	for _, tags := range drops {
-		if f.ShouldTagsPass(tags) {
-			t.Errorf("Expected tags %v to drop", tags)
-		}
-	}
-}

internal/config/testdata/single_plugin.toml

@@ -1,9 +1,11 @@
-[[plugins.memcached]]
+[[inputs.memcached]]
   servers = ["localhost"]
-  pass = ["some", "strings"]
+  namepass = ["metricname1"]
-  drop = ["other", "stuff"]
+  namedrop = ["metricname2"]
+  fieldpass = ["some", "strings"]
+  fielddrop = ["other", "stuff"]
   interval = "5s"
-  [plugins.memcached.tagpass]
+  [inputs.memcached.tagpass]
     goodtag = ["mytag"]
-  [plugins.memcached.tagdrop]
+  [inputs.memcached.tagdrop]
     badtag = ["othertag"]

internal/config/testdata/single_plugin_env_vars.toml

@@ -0,0 +1,11 @@
+[[inputs.memcached]]
+  servers = ["$MY_TEST_SERVER"]
+  namepass = ["metricname1"]
+  namedrop = ["metricname2"]
+  fieldpass = ["some", "strings"]
+  fielddrop = ["other", "stuff"]
+  interval = "$TEST_INTERVAL"
+  [inputs.memcached.tagpass]
+    goodtag = ["mytag"]
+  [inputs.memcached.tagdrop]
+    badtag = ["othertag"]

internal/config/testdata/subconfig/exec.conf

@@ -1,8 +1,4 @@
-[[plugins.exec]]
+[[inputs.exec]]
-  # specify commands via an array of tables
-  [[plugins.exec.commands]]
   # the command to run
   command = "/usr/bin/myothercollector --foo=bar"
-
+  name_suffix = "_myothercollector"
-  # name of the command (used as a prefix for measurements)
-  name = "myothercollector"

internal/config/testdata/subconfig/memcached.conf

@@ -1,9 +1,11 @@
-[[plugins.memcached]]
+[[inputs.memcached]]
   servers = ["192.168.1.1"]
+  namepass = ["metricname1"]
+  namedrop = ["metricname2"]
   pass = ["some", "strings"]
   drop = ["other", "stuff"]
   interval = "5s"
-  [plugins.memcached.tagpass]
+  [inputs.memcached.tagpass]
     goodtag = ["mytag"]
-  [plugins.memcached.tagdrop]
+  [inputs.memcached.tagdrop]
     badtag = ["othertag"]

internal/config/testdata/subconfig/procstat.conf

@@ -1,5 +1,2 @@
-[[plugins.procstat]]
+[[inputs.procstat]]
-  [[plugins.procstat.specifications]]
   pid_file = "/var/run/grafana-server.pid"
-  [[plugins.procstat.specifications]]
-  pid_file = "/var/run/influxdb/influxd.pid"

internal/config/testdata/telegraf-agent.toml

@@ -1,7 +1,7 @@
 # Telegraf configuration
 
 # Telegraf is entirely plugin driven. All metrics are gathered from the
-# declared plugins.
+# declared inputs.
 
 # Even if a plugin has no configuration, it must be declared in here
 # to be active. Declaring a plugin means just specifying the name
@@ -20,21 +20,14 @@
 # with 'required'. Be sure to edit those to make this configuration work.
 
 # Tags can also be specified via a normal map, but only one form at a time:
-[tags]
+[global_tags]
-  # dc = "us-east-1"
+  dc = "us-east-1"
 
 # Configuration for telegraf agent
 [agent]
   # Default data collection interval for all plugins
   interval = "10s"
 
-  # If utc = false, uses local time (utc is highly recommended)
-  utc = true
-
-  # Precision of writes, valid values are n, u, ms, s, m, and h
-  # note: using second precision greatly helps InfluxDB compression
-  precision = "s"
-
   # run telegraf in debug mode
   debug = false
 
@@ -46,8 +39,6 @@
 #                                  OUTPUTS                                    #
 ###############################################################################
 
-[outputs]
-
 # Configuration for influxdb server to send metrics to
 [[outputs.influxdb]]
   # The full HTTP endpoint URL for your InfluxDB instance
@@ -58,17 +49,6 @@
   # The target database for metrics. This database must already exist
   database = "telegraf" # required.
 
-  # Connection timeout (for the connection with InfluxDB), formatted as a string.
-  # Valid time units are "ns", "us" (or "µs"), "ms", "s", "m", "h".
-  # If not provided, will default to 0 (no timeout)
-  # timeout = "5s"
-
-  # username = "telegraf"
-  # password = "metricsmetricsmetricsmetrics"
-
-  # Set the user agent for the POSTs (can be useful for log differentiation)
-  # user_agent = "telegraf"
-
 [[outputs.influxdb]]
   urls = ["udp://localhost:8089"]
   database = "udp-telegraf"
@@ -88,15 +68,13 @@
 #                                  PLUGINS                                    #
 ###############################################################################
 
-[plugins]
-
 # Read Apache status information (mod_status)
-[[plugins.apache]]
+[[inputs.apache]]
-# An array of Apache status URI to gather stats.
+  # An array of Apache status URI to gather stats.
-urls = ["http://localhost/server-status?auto"]
+  urls = ["http://localhost/server-status?auto"]
 
 # Read metrics about cpu usage
-[[plugins.cpu]]
+[[inputs.cpu]]
   # Whether to report per-cpu stats or not
   percpu = true
   # Whether to report total system cpu stats or not
@@ -105,11 +83,11 @@ urls = ["http://localhost/server-status?auto"]
   drop = ["cpu_time"]
 
 # Read metrics about disk usage by mount point
-[[plugins.disk]]
+[[inputs.diskio]]
   # no configuration
 
 # Read metrics from one or many disque servers
-[[plugins.disque]]
+[[inputs.disque]]
   # An array of URI to gather stats about. Specify an ip or hostname
   # with optional port and password. ie disque://localhost, disque://10.10.3.33:18832,
   # 10.0.0.1:10000, etc.
@@ -118,7 +96,7 @@ urls = ["http://localhost/server-status?auto"]
   servers = ["localhost"]
 
 # Read stats from one or more Elasticsearch servers or clusters
-[[plugins.elasticsearch]]
+[[inputs.elasticsearch]]
   # specify a list of one or more Elasticsearch servers
   servers = ["http://localhost:9200"]
 
@@ -127,17 +105,13 @@ urls = ["http://localhost/server-status?auto"]
   local = true
 
 # Read flattened metrics from one or more commands that output JSON to stdout
-[[plugins.exec]]
+[[inputs.exec]]
-  # specify commands via an array of tables
-  [[exec.commands]]
   # the command to run
   command = "/usr/bin/mycollector --foo=bar"
-
+  name_suffix = "_mycollector"
-  # name of the command (used as a prefix for measurements)
-  name = "mycollector"
 
 # Read metrics of haproxy, via socket or csv stats page
-[[plugins.haproxy]]
+[[inputs.haproxy]]
   # An array of address to gather stats about. Specify an ip on hostname
   # with optional port. ie localhost, 10.10.3.33:1936, etc.
   #
@@ -147,33 +121,30 @@ urls = ["http://localhost/server-status?auto"]
   # servers = ["socket:/run/haproxy/admin.sock"]
 
 # Read flattened metrics from one or more JSON HTTP endpoints
-[[plugins.httpjson]]
+[[inputs.httpjson]]
-  # Specify services via an array of tables
+  # a name for the service being polled
-  [[httpjson.services]]
+  name = "webserver_stats"
 
-    # a name for the service being polled
+  # URL of each server in the service's cluster
-    name = "webserver_stats"
+  servers = [
+    "http://localhost:9999/stats/",
+    "http://localhost:9998/stats/",
+  ]
 
-    # URL of each server in the service's cluster
+  # HTTP method to use (case-sensitive)
-    servers = [
+  method = "GET"
-      "http://localhost:9999/stats/",
-      "http://localhost:9998/stats/",
-    ]
 
-    # HTTP method to use (case-sensitive)
+  # HTTP parameters (all values must be strings)
-    method = "GET"
+  [httpjson.parameters]
-
+    event_type = "cpu_spike"
-    # HTTP parameters (all values must be strings)
+    threshold = "0.75"
-    [httpjson.services.parameters]
-      event_type = "cpu_spike"
-      threshold = "0.75"
 
 # Read metrics about disk IO by device
-[[plugins.io]]
+[[inputs.diskio]]
   # no configuration
 
 # read metrics from a Kafka topic
-[[plugins.kafka_consumer]]
+[[inputs.kafka_consumer]]
   # topic(s) to consume
   topics = ["telegraf"]
   # an array of Zookeeper connection strings
@@ -186,7 +157,7 @@ urls = ["http://localhost/server-status?auto"]
   offset = "oldest"
 
 # Read metrics from a LeoFS Server via SNMP
-[[plugins.leofs]]
+[[inputs.leofs]]
   # An array of URI to gather stats about LeoFS.
   # Specify an ip or hostname with port. ie 127.0.0.1:4020
   #
@@ -194,7 +165,7 @@ urls = ["http://localhost/server-status?auto"]
   servers = ["127.0.0.1:4021"]
 
 # Read metrics from local Lustre service on OST, MDS
-[[plugins.lustre2]]
+[[inputs.lustre2]]
   # An array of /proc globs to search for Lustre stats
   # If not specified, the default will work on Lustre 2.5.x
   #
@@ -202,19 +173,28 @@ urls = ["http://localhost/server-status?auto"]
   # mds_procfiles = ["/proc/fs/lustre/mdt/*/md_stats"]
 
 # Read metrics about memory usage
-[[plugins.mem]]
+[[inputs.mem]]
   # no configuration
 
 # Read metrics from one or many memcached servers
-[[plugins.memcached]]
+[[inputs.memcached]]
   # An array of address to gather stats about. Specify an ip on hostname
   # with optional port. ie localhost, 10.0.0.1:11211, etc.
   #
   # If no servers are specified, then localhost is used as the host.
   servers = ["localhost"]
 
+# Telegraf plugin for gathering metrics from N Mesos masters
+[[inputs.mesos]]
+  # Timeout, in ms.
+  timeout = 100
+  # A list of Mesos masters, default value is localhost:5050.
+  masters = ["localhost:5050"]
+  # Metrics groups to be collected, by default, all enabled.
+  master_collections = ["resources","master","system","slaves","frameworks","messages","evqueue","registrar"]
+
 # Read metrics from one or many MongoDB servers
-[[plugins.mongodb]]
+[[inputs.mongodb]]
   # An array of URI to gather stats about. Specify an ip or hostname
   # with optional port add password. ie mongodb://user:auth_key@10.10.3.30:27017,
   # mongodb://10.10.3.33:18832, 10.0.0.1:10000, etc.
@@ -223,7 +203,7 @@ urls = ["http://localhost/server-status?auto"]
   servers = ["127.0.0.1:27017"]
 
 # Read metrics from one or many mysql servers
-[[plugins.mysql]]
+[[inputs.mysql]]
   # specify servers via a url matching:
   #  [username[:password]@][protocol[(address)]]/[?tls=[true|false|skip-verify]]
   #  e.g.
@@ -234,7 +214,7 @@ urls = ["http://localhost/server-status?auto"]
   servers = ["localhost"]
 
 # Read metrics about network interface usage
-[[plugins.net]]
+[[inputs.net]]
   # By default, telegraf gathers stats from any up interface (excluding loopback)
   # Setting interfaces will tell it to gather these explicit interfaces,
   # regardless of status.
@@ -242,12 +222,12 @@ urls = ["http://localhost/server-status?auto"]
   # interfaces = ["eth0", ... ]
 
 # Read Nginx's basic status information (ngx_http_stub_status_module)
-[[plugins.nginx]]
+[[inputs.nginx]]
   # An array of Nginx stub_status URI to gather stats.
   urls = ["http://localhost/status"]
 
 # Ping given url(s) and return statistics
-[[plugins.ping]]
+[[inputs.ping]]
   # urls to ping
   urls = ["www.google.com"] # required
   # number of pings to send (ping -c <COUNT>)
@@ -260,10 +240,7 @@ urls = ["http://localhost/server-status?auto"]
   interface = ""
 
 # Read metrics from one or many postgresql servers
-[[plugins.postgresql]]
+[[inputs.postgresql]]
-  # specify servers via an array of tables
-  [[postgresql.servers]]
-
   # specify address via a url matching:
   #   postgres://[pqgotest[:password]]@localhost[/dbname]?sslmode=[disable|verify-ca|verify-full]
   # or a simple string:
@@ -290,14 +267,13 @@ urls = ["http://localhost/server-status?auto"]
   # address = "influx@remoteserver"
 
 # Read metrics from one or many prometheus clients
-[[plugins.prometheus]]
+[[inputs.prometheus]]
   # An array of urls to scrape metrics from.
   urls = ["http://localhost:9100/metrics"]
 
 # Read metrics from one or many RabbitMQ servers via the management API
-[[plugins.rabbitmq]]
+[[inputs.rabbitmq]]
   # Specify servers via an array of tables
-  [[rabbitmq.servers]]
   # name = "rmq-server-1" # optional tag
   # url = "http://localhost:15672"
   # username = "guest"
@@ -308,7 +284,7 @@ urls = ["http://localhost/server-status?auto"]
   # nodes = ["rabbit@node1", "rabbit@node2"]
 
 # Read metrics from one or many redis servers
-[[plugins.redis]]
+[[inputs.redis]]
   # An array of URI to gather stats about. Specify an ip or hostname
   # with optional port add password. ie redis://localhost, redis://10.10.3.33:18832,
   # 10.0.0.1:10000, etc.
@@ -317,7 +293,7 @@ urls = ["http://localhost/server-status?auto"]
   servers = ["localhost"]
 
 # Read metrics from one or many RethinkDB servers
-[[plugins.rethinkdb]]
+[[inputs.rethinkdb]]
   # An array of URI to gather stats about. Specify an ip or hostname
   # with optional port add password. ie rethinkdb://user:auth_key@10.10.3.30:28105,
   # rethinkdb://10.10.3.33:18832, 10.0.0.1:10000, etc.
@@ -326,9 +302,9 @@ urls = ["http://localhost/server-status?auto"]
   servers = ["127.0.0.1:28015"]
 
 # Read metrics about swap memory usage
-[[plugins.swap]]
+[[inputs.swap]]
   # no configuration
 
 # Read metrics about system load & uptime
-[[plugins.system]]
+[[inputs.system]]
   # no configuration

internal/errchan/errchan.go

@@ -0,0 +1,37 @@
+package errchan
+
+import (
+	"fmt"
+	"strings"
+)
+
+type ErrChan struct {
+	C chan error
+}
+
+// New returns an error channel of max length 'n'
+// errors can be sent to the ErrChan.C channel, and will be returned when
+// ErrChan.Error() is called.
+func New(n int) *ErrChan {
+	return &ErrChan{
+		C: make(chan error, n),
+	}
+}
+
+// Error closes the ErrChan.C channel and returns an error if there are any
+// non-nil errors, otherwise returns nil.
+func (e *ErrChan) Error() error {
+	close(e.C)
+
+	var out string
+	for err := range e.C {
+		if err != nil {
+			out += "[" + err.Error() + "], "
+		}
+	}
+
+	if out != "" {
+		return fmt.Errorf("Errors encountered: " + strings.TrimRight(out, ", "))
+	}
+	return nil
+}

internal/globpath/globpath.go

@@ -0,0 +1,98 @@
+package globpath
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/gobwas/glob"
+)
+
+var sepStr = fmt.Sprintf("%v", string(os.PathSeparator))
+
+type GlobPath struct {
+	path    string
+	hasMeta bool
+	g       glob.Glob
+	root    string
+}
+
+func Compile(path string) (*GlobPath, error) {
+	out := GlobPath{
+		hasMeta: hasMeta(path),
+		path:    path,
+	}
+
+	// if there are no glob meta characters in the path, don't bother compiling
+	// a glob object or finding the root directory. (see short-circuit in Match)
+	if !out.hasMeta {
+		return &out, nil
+	}
+
+	var err error
+	if out.g, err = glob.Compile(path, os.PathSeparator); err != nil {
+		return nil, err
+	}
+	// Get the root directory for this filepath
+	out.root = findRootDir(path)
+	return &out, nil
+}
+
+func (g *GlobPath) Match() map[string]os.FileInfo {
+	if !g.hasMeta {
+		out := make(map[string]os.FileInfo)
+		info, err := os.Stat(g.path)
+		if !os.IsNotExist(err) {
+			out[g.path] = info
+		}
+		return out
+	}
+	return walkFilePath(g.root, g.g)
+}
+
+// walk the filepath from the given root and return a list of files that match
+// the given glob.
+func walkFilePath(root string, g glob.Glob) map[string]os.FileInfo {
+	matchedFiles := make(map[string]os.FileInfo)
+	walkfn := func(path string, info os.FileInfo, _ error) error {
+		if g.Match(path) {
+			matchedFiles[path] = info
+		}
+		return nil
+	}
+	filepath.Walk(root, walkfn)
+	return matchedFiles
+}
+
+// find the root dir of the given path (could include globs).
+// ie:
+//   /var/log/telegraf.conf -> /var/log
+//   /home/** ->               /home
+//   /home/*/** ->             /home
+//   /lib/share/*/*/**.txt ->  /lib/share
+func findRootDir(path string) string {
+	pathItems := strings.Split(path, sepStr)
+	out := sepStr
+	for i, item := range pathItems {
+		if i == len(pathItems)-1 {
+			break
+		}
+		if item == "" {
+			continue
+		}
+		if hasMeta(item) {
+			break
+		}
+		out += item + sepStr
+	}
+	if out != "/" {
+		out = strings.TrimSuffix(out, "/")
+	}
+	return out
+}
+
+// hasMeta reports whether path contains any magic glob characters.
+func hasMeta(path string) bool {
+	return strings.IndexAny(path, "*?[") >= 0
+}

internal/globpath/globpath_test.go

@@ -0,0 +1,62 @@
+package globpath
+
+import (
+	"runtime"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestCompileAndMatch(t *testing.T) {
+	dir := getTestdataDir()
+	// test super asterisk
+	g1, err := Compile(dir + "/**")
+	require.NoError(t, err)
+	// test single asterisk
+	g2, err := Compile(dir + "/*.log")
+	require.NoError(t, err)
+	// test no meta characters (file exists)
+	g3, err := Compile(dir + "/log1.log")
+	require.NoError(t, err)
+	// test file that doesn't exist
+	g4, err := Compile(dir + "/i_dont_exist.log")
+	require.NoError(t, err)
+	// test super asterisk that doesn't exist
+	g5, err := Compile(dir + "/dir_doesnt_exist/**")
+	require.NoError(t, err)
+
+	matches := g1.Match()
+	assert.Len(t, matches, 3)
+	matches = g2.Match()
+	assert.Len(t, matches, 2)
+	matches = g3.Match()
+	assert.Len(t, matches, 1)
+	matches = g4.Match()
+	assert.Len(t, matches, 0)
+	matches = g5.Match()
+	assert.Len(t, matches, 0)
+}
+
+func TestFindRootDir(t *testing.T) {
+	tests := []struct {
+		input  string
+		output string
+	}{
+		{"/var/log/telegraf.conf", "/var/log"},
+		{"/home/**", "/home"},
+		{"/home/*/**", "/home"},
+		{"/lib/share/*/*/**.txt", "/lib/share"},
+	}
+
+	for _, test := range tests {
+		actual := findRootDir(test.input)
+		assert.Equal(t, test.output, actual)
+	}
+}
+
+func getTestdataDir() string {
+	_, filename, _, _ := runtime.Caller(1)
+	return strings.Replace(filename, "globpath_test.go", "testdata", 1)
+}

internal/globpath/testdata/test.conf

@@ -0,0 +1,5 @@
+# this is a fake testing config file
+# for testing the filestat plugin
+
+option1 = "foo"
+option2 = "bar"

internal/internal.go

@@ -2,10 +2,31 @@ package internal
 
 import (
 	"bufio"
+	"bytes"
+	"crypto/rand"
+	"crypto/tls"
+	"crypto/x509"
 	"errors"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"math/big"
 	"os"
+	"os/exec"
+	"strconv"
 	"strings"
 	"time"
+	"unicode"
+
+	"github.com/gobwas/glob"
+)
+
+const alphanum string = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
+
+var (
+	TimeoutErr = errors.New("Command timed out.")
+
+	NotImplementedError = errors.New("not implemented yet")
 )
 
 // Duration just wraps time.Duration
@@ -15,18 +36,29 @@ type Duration struct {
 
 // UnmarshalTOML parses the duration from the TOML config file
 func (d *Duration) UnmarshalTOML(b []byte) error {
-	dur, err := time.ParseDuration(string(b[1 : len(b)-1]))
+	var err error
-	if err != nil {
+	// Parse string duration, ie, "1s"
-		return err
+	d.Duration, err = time.ParseDuration(string(b[1 : len(b)-1]))
+	if err == nil {
+		return nil
 	}
 
-	d.Duration = dur
+	// First try parsing as integer seconds
+	sI, err := strconv.ParseInt(string(b), 10, 64)
+	if err == nil {
+		d.Duration = time.Second * time.Duration(sI)
+		return nil
+	}
+	// Second try parsing as float seconds
+	sF, err := strconv.ParseFloat(string(b), 64)
+	if err == nil {
+		d.Duration = time.Second * time.Duration(sF)
+		return nil
+	}
 
 	return nil
 }
 
-var NotImplementedError = errors.New("not implemented yet")
-
 // ReadLines reads contents from a file and splits them by new lines.
 // A convenience wrapper to ReadLinesOffsetN(filename, 0, -1).
 func ReadLines(filename string) ([]string, error) {
@@ -62,58 +94,162 @@ func ReadLinesOffsetN(filename string, offset uint, n int) ([]string, error) {
 	return ret, nil
 }
 
-// Glob will test a string pattern, potentially containing globs, against a
+// RandomString returns a random string of alpha-numeric characters
-// subject string. The result is a simple true/false, determining whether or
+func RandomString(n int) string {
-// not the glob pattern matched the subject text.
+	var bytes = make([]byte, n)
-//
+	rand.Read(bytes)
-// Adapted from https://github.com/ryanuber/go-glob/blob/master/glob.go
+	for i, b := range bytes {
-// thanks Ryan Uber!
+		bytes[i] = alphanum[b%byte(len(alphanum))]
-func Glob(pattern, measurement string) bool {
+	}
-	// Empty pattern can only match empty subject
+	return string(bytes)
-	if pattern == "" {
+}
-		return measurement == pattern
+
+// GetTLSConfig gets a tls.Config object from the given certs, key, and CA files.
+// you must give the full path to the files.
+// If all files are blank and InsecureSkipVerify=false, returns a nil pointer.
+func GetTLSConfig(
+	SSLCert, SSLKey, SSLCA string,
+	InsecureSkipVerify bool,
+) (*tls.Config, error) {
+	if SSLCert == "" && SSLKey == "" && SSLCA == "" && !InsecureSkipVerify {
+		return nil, nil
 	}
 
-	// If the pattern _is_ a glob, it matches everything
+	t := &tls.Config{
-	if pattern == "*" {
+		InsecureSkipVerify: InsecureSkipVerify,
-		return true
 	}
 
-	parts := strings.Split(pattern, "*")
+	if SSLCA != "" {
-
+		caCert, err := ioutil.ReadFile(SSLCA)
-	if len(parts) == 1 {
+		if err != nil {
-		// No globs in pattern, so test for match
+			return nil, errors.New(fmt.Sprintf("Could not load TLS CA: %s",
-		return pattern == measurement
+				err))
-	}
-
-	leadingGlob := strings.HasPrefix(pattern, "*")
-	trailingGlob := strings.HasSuffix(pattern, "*")
-	end := len(parts) - 1
-
-	for i, part := range parts {
-		switch i {
-		case 0:
-			if leadingGlob {
-				continue
-			}
-			if !strings.HasPrefix(measurement, part) {
-				return false
-			}
-		case end:
-			if len(measurement) > 0 {
-				return trailingGlob || strings.HasSuffix(measurement, part)
-			}
-		default:
-			if !strings.Contains(measurement, part) {
-				return false
-			}
 		}
 
-		// Trim evaluated text from measurement as we loop over the pattern.
+		caCertPool := x509.NewCertPool()
-		idx := strings.Index(measurement, part) + len(part)
+		caCertPool.AppendCertsFromPEM(caCert)
-		measurement = measurement[idx:]
+		t.RootCAs = caCertPool
 	}
 
-	// All parts of the pattern matched
+	if SSLCert != "" && SSLKey != "" {
-	return true
+		cert, err := tls.LoadX509KeyPair(SSLCert, SSLKey)
+		if err != nil {
+			return nil, errors.New(fmt.Sprintf(
+				"Could not load TLS client key/certificate: %s",
+				err))
+		}
+
+		t.Certificates = []tls.Certificate{cert}
+		t.BuildNameToCertificate()
+	}
+
+	// will be nil by default if nothing is provided
+	return t, nil
+}
+
+// SnakeCase converts the given string to snake case following the Golang format:
+// acronyms are converted to lower-case and preceded by an underscore.
+func SnakeCase(in string) string {
+	runes := []rune(in)
+	length := len(runes)
+
+	var out []rune
+	for i := 0; i < length; i++ {
+		if i > 0 && unicode.IsUpper(runes[i]) && ((i+1 < length && unicode.IsLower(runes[i+1])) || unicode.IsLower(runes[i-1])) {
+			out = append(out, '_')
+		}
+		out = append(out, unicode.ToLower(runes[i]))
+	}
+
+	return string(out)
+}
+
+// CombinedOutputTimeout runs the given command with the given timeout and
+// returns the combined output of stdout and stderr.
+// If the command times out, it attempts to kill the process.
+func CombinedOutputTimeout(c *exec.Cmd, timeout time.Duration) ([]byte, error) {
+	var b bytes.Buffer
+	c.Stdout = &b
+	c.Stderr = &b
+	if err := c.Start(); err != nil {
+		return nil, err
+	}
+	err := WaitTimeout(c, timeout)
+	return b.Bytes(), err
+}
+
+// RunTimeout runs the given command with the given timeout.
+// If the command times out, it attempts to kill the process.
+func RunTimeout(c *exec.Cmd, timeout time.Duration) error {
+	if err := c.Start(); err != nil {
+		return err
+	}
+	return WaitTimeout(c, timeout)
+}
+
+// WaitTimeout waits for the given command to finish with a timeout.
+// It assumes the command has already been started.
+// If the command times out, it attempts to kill the process.
+func WaitTimeout(c *exec.Cmd, timeout time.Duration) error {
+	timer := time.NewTimer(timeout)
+	done := make(chan error)
+	go func() { done <- c.Wait() }()
+	select {
+	case err := <-done:
+		timer.Stop()
+		return err
+	case <-timer.C:
+		if err := c.Process.Kill(); err != nil {
+			log.Printf("FATAL error killing process: %s", err)
+			return err
+		}
+		// wait for the command to return after killing it
+		<-done
+		return TimeoutErr
+	}
+}
+
+// CompileFilter takes a list of glob "filters", ie:
+//   ["MAIN.*", "CPU.*", "NET"]
+// and compiles them into a glob object. This glob object can
+// then be used to match keys to the filter.
+func CompileFilter(filters []string) (glob.Glob, error) {
+	var out glob.Glob
+
+	// return if there is nothing to compile
+	if len(filters) == 0 {
+		return out, nil
+	}
+
+	var err error
+	if len(filters) == 1 {
+		out, err = glob.Compile(filters[0])
+	} else {
+		out, err = glob.Compile("{" + strings.Join(filters, ",") + "}")
+	}
+	return out, err
+}
+
+// RandomSleep will sleep for a random amount of time up to max.
+// If the shutdown channel is closed, it will return before it has finished
+// sleeping.
+func RandomSleep(max time.Duration, shutdown chan struct{}) {
+	if max == 0 {
+		return
+	}
+	maxSleep := big.NewInt(max.Nanoseconds())
+
+	var sleepns int64
+	if j, err := rand.Int(rand.Reader, maxSleep); err == nil {
+		sleepns = j.Int64()
+	}
+
+	t := time.NewTimer(time.Nanosecond * time.Duration(sleepns))
+	select {
+	case <-t.C:
+		return
+	case <-shutdown:
+		t.Stop()
+		return
+	}
 }

internal/internal_test.go

@@ -1,44 +1,164 @@
 package internal
 
-import "testing"
+import (
+	"os/exec"
+	"testing"
+	"time"
 
-func testGlobMatch(t *testing.T, pattern, subj string) {
+	"github.com/stretchr/testify/assert"
-	if !Glob(pattern, subj) {
+)
-		t.Errorf("%s should match %s", pattern, subj)
+
+type SnakeTest struct {
+	input  string
+	output string
+}
+
+var tests = []SnakeTest{
+	{"a", "a"},
+	{"snake", "snake"},
+	{"A", "a"},
+	{"ID", "id"},
+	{"MOTD", "motd"},
+	{"Snake", "snake"},
+	{"SnakeTest", "snake_test"},
+	{"APIResponse", "api_response"},
+	{"SnakeID", "snake_id"},
+	{"SnakeIDGoogle", "snake_id_google"},
+	{"LinuxMOTD", "linux_motd"},
+	{"OMGWTFBBQ", "omgwtfbbq"},
+	{"omg_wtf_bbq", "omg_wtf_bbq"},
+}
+
+func TestSnakeCase(t *testing.T) {
+	for _, test := range tests {
+		if SnakeCase(test.input) != test.output {
+			t.Errorf(`SnakeCase("%s"), wanted "%s", got \%s"`, test.input, test.output, SnakeCase(test.input))
+		}
 	}
 }
 
-func testGlobNoMatch(t *testing.T, pattern, subj string) {
+var (
-	if Glob(pattern, subj) {
+	sleepbin, _ = exec.LookPath("sleep")
-		t.Errorf("%s should not match %s", pattern, subj)
+	echobin, _  = exec.LookPath("echo")
+)
+
+func TestRunTimeout(t *testing.T) {
+	if sleepbin == "" {
+		t.Skip("'sleep' binary not available on OS, skipping.")
 	}
+	cmd := exec.Command(sleepbin, "10")
+	start := time.Now()
+	err := RunTimeout(cmd, time.Millisecond*20)
+	elapsed := time.Since(start)
+
+	assert.Equal(t, TimeoutErr, err)
+	// Verify that command gets killed in 20ms, with some breathing room
+	assert.True(t, elapsed < time.Millisecond*75)
 }
 
-func TestEmptyPattern(t *testing.T) {
+func TestCombinedOutputTimeout(t *testing.T) {
-	testGlobMatch(t, "", "")
+	if sleepbin == "" {
-	testGlobNoMatch(t, "", "test")
+		t.Skip("'sleep' binary not available on OS, skipping.")
-}
-
-func TestPatternWithoutGlobs(t *testing.T) {
-	testGlobMatch(t, "test", "test")
-}
-
-func TestGlob(t *testing.T) {
-	for _, pattern := range []string{
-		"*test",           // Leading glob
-		"this*",           // Trailing glob
-		"*is*a*",          // Lots of globs
-		"**test**",        // Double glob characters
-		"**is**a***test*", // Varying number of globs
-	} {
-		testGlobMatch(t, pattern, "this_is_a_test")
 	}
+	cmd := exec.Command(sleepbin, "10")
+	start := time.Now()
+	_, err := CombinedOutputTimeout(cmd, time.Millisecond*20)
+	elapsed := time.Since(start)
 
-	for _, pattern := range []string{
+	assert.Equal(t, TimeoutErr, err)
-		"test*", // Implicit substring match should fail
+	// Verify that command gets killed in 20ms, with some breathing room
-		"*is",   // Partial match should fail
+	assert.True(t, elapsed < time.Millisecond*75)
-		"*no*",  // Globs without a match between them should fail
+}
-	} {
+
-		testGlobNoMatch(t, pattern, "this_is_a_test")
+func TestCombinedOutput(t *testing.T) {
-	}
+	if echobin == "" {
+		t.Skip("'echo' binary not available on OS, skipping.")
+	}
+	cmd := exec.Command(echobin, "foo")
+	out, err := CombinedOutputTimeout(cmd, time.Second)
+
+	assert.NoError(t, err)
+	assert.Equal(t, "foo\n", string(out))
+}
+
+// test that CombinedOutputTimeout and exec.Cmd.CombinedOutput return
+// the same output from a failed command.
+func TestCombinedOutputError(t *testing.T) {
+	if sleepbin == "" {
+		t.Skip("'sleep' binary not available on OS, skipping.")
+	}
+	cmd := exec.Command(sleepbin, "foo")
+	expected, err := cmd.CombinedOutput()
+
+	cmd2 := exec.Command(sleepbin, "foo")
+	actual, err := CombinedOutputTimeout(cmd2, time.Second)
+
+	assert.Error(t, err)
+	assert.Equal(t, expected, actual)
+}
+
+func TestRunError(t *testing.T) {
+	if sleepbin == "" {
+		t.Skip("'sleep' binary not available on OS, skipping.")
+	}
+	cmd := exec.Command(sleepbin, "foo")
+	err := RunTimeout(cmd, time.Second)
+
+	assert.Error(t, err)
+}
+
+func TestCompileFilter(t *testing.T) {
+	f, err := CompileFilter([]string{})
+	assert.NoError(t, err)
+	assert.Nil(t, f)
+
+	f, err = CompileFilter([]string{"cpu"})
+	assert.NoError(t, err)
+	assert.True(t, f.Match("cpu"))
+	assert.False(t, f.Match("cpu0"))
+	assert.False(t, f.Match("mem"))
+
+	f, err = CompileFilter([]string{"cpu*"})
+	assert.NoError(t, err)
+	assert.True(t, f.Match("cpu"))
+	assert.True(t, f.Match("cpu0"))
+	assert.False(t, f.Match("mem"))
+
+	f, err = CompileFilter([]string{"cpu", "mem"})
+	assert.NoError(t, err)
+	assert.True(t, f.Match("cpu"))
+	assert.False(t, f.Match("cpu0"))
+	assert.True(t, f.Match("mem"))
+
+	f, err = CompileFilter([]string{"cpu", "mem", "net*"})
+	assert.NoError(t, err)
+	assert.True(t, f.Match("cpu"))
+	assert.False(t, f.Match("cpu0"))
+	assert.True(t, f.Match("mem"))
+	assert.True(t, f.Match("network"))
+}
+
+func TestRandomSleep(t *testing.T) {
+	// test that zero max returns immediately
+	s := time.Now()
+	RandomSleep(time.Duration(0), make(chan struct{}))
+	elapsed := time.Since(s)
+	assert.True(t, elapsed < time.Millisecond)
+
+	// test that max sleep is respected
+	s = time.Now()
+	RandomSleep(time.Millisecond*50, make(chan struct{}))
+	elapsed = time.Since(s)
+	assert.True(t, elapsed < time.Millisecond*50)
+
+	// test that shutdown is respected
+	s = time.Now()
+	shutdown := make(chan struct{})
+	go func() {
+		time.Sleep(time.Millisecond * 100)
+		close(shutdown)
+	}()
+	RandomSleep(time.Second, shutdown)
+	elapsed = time.Since(s)
+	assert.True(t, elapsed < time.Millisecond*150)
 }

internal/limiter/limiter.go

@@ -0,0 +1,59 @@
+package limiter
+
+import (
+	"sync"
+	"time"
+)
+
+// NewRateLimiter returns a rate limiter that will will emit from the C
+// channel only 'n' times every 'rate' seconds.
+func NewRateLimiter(n int, rate time.Duration) *rateLimiter {
+	r := &rateLimiter{
+		C:        make(chan bool),
+		rate:     rate,
+		n:        n,
+		shutdown: make(chan bool),
+	}
+	r.wg.Add(1)
+	go r.limiter()
+	return r
+}
+
+type rateLimiter struct {
+	C    chan bool
+	rate time.Duration
+	n    int
+
+	shutdown chan bool
+	wg       sync.WaitGroup
+}
+
+func (r *rateLimiter) Stop() {
+	close(r.shutdown)
+	r.wg.Wait()
+	close(r.C)
+}
+
+func (r *rateLimiter) limiter() {
+	defer r.wg.Done()
+	ticker := time.NewTicker(r.rate)
+	defer ticker.Stop()
+	counter := 0
+	for {
+		select {
+		case <-r.shutdown:
+			return
+		case <-ticker.C:
+			counter = 0
+		default:
+			if counter < r.n {
+				select {
+				case r.C <- true:
+					counter++
+				case <-r.shutdown:
+					return
+				}
+			}
+		}
+	}
+}

internal/limiter/limiter_test.go

@@ -0,0 +1,54 @@
+package limiter
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestRateLimiter(t *testing.T) {
+	r := NewRateLimiter(5, time.Second)
+	ticker := time.NewTicker(time.Millisecond * 75)
+
+	// test that we can only get 5 receives from the rate limiter
+	counter := 0
+outer:
+	for {
+		select {
+		case <-r.C:
+			counter++
+		case <-ticker.C:
+			break outer
+		}
+	}
+
+	assert.Equal(t, 5, counter)
+	r.Stop()
+	// verify that the Stop function closes the channel.
+	_, ok := <-r.C
+	assert.False(t, ok)
+}
+
+func TestRateLimiterMultipleIterations(t *testing.T) {
+	r := NewRateLimiter(5, time.Millisecond*50)
+	ticker := time.NewTicker(time.Millisecond * 250)
+
+	// test that we can get 15 receives from the rate limiter
+	counter := 0
+outer:
+	for {
+		select {
+		case <-ticker.C:
+			break outer
+		case <-r.C:
+			counter++
+		}
+	}
+
+	assert.True(t, counter > 10)
+	r.Stop()
+	// verify that the Stop function closes the channel.
+	_, ok := <-r.C
+	assert.False(t, ok)
+}

internal/models/filter.go

@@ -0,0 +1,182 @@
+package internal_models
+
+import (
+	"fmt"
+
+	"github.com/gobwas/glob"
+
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/internal"
+)
+
+// TagFilter is the name of a tag, and the values on which to filter
+type TagFilter struct {
+	Name   string
+	Filter []string
+	filter glob.Glob
+}
+
+// Filter containing drop/pass and tagdrop/tagpass rules
+type Filter struct {
+	NameDrop []string
+	nameDrop glob.Glob
+	NamePass []string
+	namePass glob.Glob
+
+	FieldDrop []string
+	fieldDrop glob.Glob
+	FieldPass []string
+	fieldPass glob.Glob
+
+	TagDrop []TagFilter
+	TagPass []TagFilter
+
+	TagExclude []string
+	tagExclude glob.Glob
+	TagInclude []string
+	tagInclude glob.Glob
+
+	IsActive bool
+}
+
+// Compile all Filter lists into glob.Glob objects.
+func (f *Filter) CompileFilter() error {
+	var err error
+	f.nameDrop, err = internal.CompileFilter(f.NameDrop)
+	if err != nil {
+		return fmt.Errorf("Error compiling 'namedrop', %s", err)
+	}
+	f.namePass, err = internal.CompileFilter(f.NamePass)
+	if err != nil {
+		return fmt.Errorf("Error compiling 'namepass', %s", err)
+	}
+
+	f.fieldDrop, err = internal.CompileFilter(f.FieldDrop)
+	if err != nil {
+		return fmt.Errorf("Error compiling 'fielddrop', %s", err)
+	}
+	f.fieldPass, err = internal.CompileFilter(f.FieldPass)
+	if err != nil {
+		return fmt.Errorf("Error compiling 'fieldpass', %s", err)
+	}
+
+	f.tagExclude, err = internal.CompileFilter(f.TagExclude)
+	if err != nil {
+		return fmt.Errorf("Error compiling 'tagexclude', %s", err)
+	}
+	f.tagInclude, err = internal.CompileFilter(f.TagInclude)
+	if err != nil {
+		return fmt.Errorf("Error compiling 'taginclude', %s", err)
+	}
+
+	for i, _ := range f.TagDrop {
+		f.TagDrop[i].filter, err = internal.CompileFilter(f.TagDrop[i].Filter)
+		if err != nil {
+			return fmt.Errorf("Error compiling 'tagdrop', %s", err)
+		}
+	}
+	for i, _ := range f.TagPass {
+		f.TagPass[i].filter, err = internal.CompileFilter(f.TagPass[i].Filter)
+		if err != nil {
+			return fmt.Errorf("Error compiling 'tagpass', %s", err)
+		}
+	}
+	return nil
+}
+
+func (f *Filter) ShouldMetricPass(metric telegraf.Metric) bool {
+	if f.ShouldNamePass(metric.Name()) && f.ShouldTagsPass(metric.Tags()) {
+		return true
+	}
+	return false
+}
+
+// ShouldFieldsPass returns true if the metric should pass, false if should drop
+// based on the drop/pass filter parameters
+func (f *Filter) ShouldNamePass(key string) bool {
+	if f.namePass != nil {
+		if f.namePass.Match(key) {
+			return true
+		}
+		return false
+	}
+
+	if f.nameDrop != nil {
+		if f.nameDrop.Match(key) {
+			return false
+		}
+	}
+	return true
+}
+
+// ShouldFieldsPass returns true if the metric should pass, false if should drop
+// based on the drop/pass filter parameters
+func (f *Filter) ShouldFieldsPass(key string) bool {
+	if f.fieldPass != nil {
+		if f.fieldPass.Match(key) {
+			return true
+		}
+		return false
+	}
+
+	if f.fieldDrop != nil {
+		if f.fieldDrop.Match(key) {
+			return false
+		}
+	}
+	return true
+}
+
+// ShouldTagsPass returns true if the metric should pass, false if should drop
+// based on the tagdrop/tagpass filter parameters
+func (f *Filter) ShouldTagsPass(tags map[string]string) bool {
+	if f.TagPass != nil {
+		for _, pat := range f.TagPass {
+			if pat.filter == nil {
+				continue
+			}
+			if tagval, ok := tags[pat.Name]; ok {
+				if pat.filter.Match(tagval) {
+					return true
+				}
+			}
+		}
+		return false
+	}
+
+	if f.TagDrop != nil {
+		for _, pat := range f.TagDrop {
+			if pat.filter == nil {
+				continue
+			}
+			if tagval, ok := tags[pat.Name]; ok {
+				if pat.filter.Match(tagval) {
+					return false
+				}
+			}
+		}
+		return true
+	}
+
+	return true
+}
+
+// Apply TagInclude and TagExclude filters.
+// modifies the tags map in-place.
+func (f *Filter) FilterTags(tags map[string]string) {
+	if f.tagInclude != nil {
+		for k, _ := range tags {
+			if !f.tagInclude.Match(k) {
+				delete(tags, k)
+			}
+		}
+	}
+
+	if f.tagExclude != nil {
+		for k, _ := range tags {
+			if f.tagExclude.Match(k) {
+				delete(tags, k)
+			}
+		}
+	}
+}

internal/models/filter_test.go

@@ -0,0 +1,366 @@
+package internal_models
+
+import (
+	"testing"
+
+	"github.com/influxdata/telegraf/testutil"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestFilter_Empty(t *testing.T) {
+	f := Filter{}
+
+	measurements := []string{
+		"foo",
+		"bar",
+		"barfoo",
+		"foo_bar",
+		"foo.bar",
+		"foo-bar",
+		"supercalifradjulisticexpialidocious",
+	}
+
+	for _, measurement := range measurements {
+		if !f.ShouldFieldsPass(measurement) {
+			t.Errorf("Expected measurement %s to pass", measurement)
+		}
+	}
+}
+
+func TestFilter_NamePass(t *testing.T) {
+	f := Filter{
+		NamePass: []string{"foo*", "cpu_usage_idle"},
+	}
+	require.NoError(t, f.CompileFilter())
+
+	passes := []string{
+		"foo",
+		"foo_bar",
+		"foo.bar",
+		"foo-bar",
+		"cpu_usage_idle",
+	}
+
+	drops := []string{
+		"bar",
+		"barfoo",
+		"bar_foo",
+		"cpu_usage_busy",
+	}
+
+	for _, measurement := range passes {
+		if !f.ShouldNamePass(measurement) {
+			t.Errorf("Expected measurement %s to pass", measurement)
+		}
+	}
+
+	for _, measurement := range drops {
+		if f.ShouldNamePass(measurement) {
+			t.Errorf("Expected measurement %s to drop", measurement)
+		}
+	}
+}
+
+func TestFilter_NameDrop(t *testing.T) {
+	f := Filter{
+		NameDrop: []string{"foo*", "cpu_usage_idle"},
+	}
+	require.NoError(t, f.CompileFilter())
+
+	drops := []string{
+		"foo",
+		"foo_bar",
+		"foo.bar",
+		"foo-bar",
+		"cpu_usage_idle",
+	}
+
+	passes := []string{
+		"bar",
+		"barfoo",
+		"bar_foo",
+		"cpu_usage_busy",
+	}
+
+	for _, measurement := range passes {
+		if !f.ShouldNamePass(measurement) {
+			t.Errorf("Expected measurement %s to pass", measurement)
+		}
+	}
+
+	for _, measurement := range drops {
+		if f.ShouldNamePass(measurement) {
+			t.Errorf("Expected measurement %s to drop", measurement)
+		}
+	}
+}
+
+func TestFilter_FieldPass(t *testing.T) {
+	f := Filter{
+		FieldPass: []string{"foo*", "cpu_usage_idle"},
+	}
+	require.NoError(t, f.CompileFilter())
+
+	passes := []string{
+		"foo",
+		"foo_bar",
+		"foo.bar",
+		"foo-bar",
+		"cpu_usage_idle",
+	}
+
+	drops := []string{
+		"bar",
+		"barfoo",
+		"bar_foo",
+		"cpu_usage_busy",
+	}
+
+	for _, measurement := range passes {
+		if !f.ShouldFieldsPass(measurement) {
+			t.Errorf("Expected measurement %s to pass", measurement)
+		}
+	}
+
+	for _, measurement := range drops {
+		if f.ShouldFieldsPass(measurement) {
+			t.Errorf("Expected measurement %s to drop", measurement)
+		}
+	}
+}
+
+func TestFilter_FieldDrop(t *testing.T) {
+	f := Filter{
+		FieldDrop: []string{"foo*", "cpu_usage_idle"},
+	}
+	require.NoError(t, f.CompileFilter())
+
+	drops := []string{
+		"foo",
+		"foo_bar",
+		"foo.bar",
+		"foo-bar",
+		"cpu_usage_idle",
+	}
+
+	passes := []string{
+		"bar",
+		"barfoo",
+		"bar_foo",
+		"cpu_usage_busy",
+	}
+
+	for _, measurement := range passes {
+		if !f.ShouldFieldsPass(measurement) {
+			t.Errorf("Expected measurement %s to pass", measurement)
+		}
+	}
+
+	for _, measurement := range drops {
+		if f.ShouldFieldsPass(measurement) {
+			t.Errorf("Expected measurement %s to drop", measurement)
+		}
+	}
+}
+
+func TestFilter_TagPass(t *testing.T) {
+	filters := []TagFilter{
+		TagFilter{
+			Name:   "cpu",
+			Filter: []string{"cpu-*"},
+		},
+		TagFilter{
+			Name:   "mem",
+			Filter: []string{"mem_free"},
+		}}
+	f := Filter{
+		TagPass: filters,
+	}
+	require.NoError(t, f.CompileFilter())
+
+	passes := []map[string]string{
+		{"cpu": "cpu-total"},
+		{"cpu": "cpu-0"},
+		{"cpu": "cpu-1"},
+		{"cpu": "cpu-2"},
+		{"mem": "mem_free"},
+	}
+
+	drops := []map[string]string{
+		{"cpu": "cputotal"},
+		{"cpu": "cpu0"},
+		{"cpu": "cpu1"},
+		{"cpu": "cpu2"},
+		{"mem": "mem_used"},
+	}
+
+	for _, tags := range passes {
+		if !f.ShouldTagsPass(tags) {
+			t.Errorf("Expected tags %v to pass", tags)
+		}
+	}
+
+	for _, tags := range drops {
+		if f.ShouldTagsPass(tags) {
+			t.Errorf("Expected tags %v to drop", tags)
+		}
+	}
+}
+
+func TestFilter_TagDrop(t *testing.T) {
+	filters := []TagFilter{
+		TagFilter{
+			Name:   "cpu",
+			Filter: []string{"cpu-*"},
+		},
+		TagFilter{
+			Name:   "mem",
+			Filter: []string{"mem_free"},
+		}}
+	f := Filter{
+		TagDrop: filters,
+	}
+	require.NoError(t, f.CompileFilter())
+
+	drops := []map[string]string{
+		{"cpu": "cpu-total"},
+		{"cpu": "cpu-0"},
+		{"cpu": "cpu-1"},
+		{"cpu": "cpu-2"},
+		{"mem": "mem_free"},
+	}
+
+	passes := []map[string]string{
+		{"cpu": "cputotal"},
+		{"cpu": "cpu0"},
+		{"cpu": "cpu1"},
+		{"cpu": "cpu2"},
+		{"mem": "mem_used"},
+	}
+
+	for _, tags := range passes {
+		if !f.ShouldTagsPass(tags) {
+			t.Errorf("Expected tags %v to pass", tags)
+		}
+	}
+
+	for _, tags := range drops {
+		if f.ShouldTagsPass(tags) {
+			t.Errorf("Expected tags %v to drop", tags)
+		}
+	}
+}
+
+func TestFilter_CompileFilterError(t *testing.T) {
+	f := Filter{
+		NameDrop: []string{"", ""},
+	}
+	assert.Error(t, f.CompileFilter())
+	f = Filter{
+		NamePass: []string{"", ""},
+	}
+	assert.Error(t, f.CompileFilter())
+	f = Filter{
+		FieldDrop: []string{"", ""},
+	}
+	assert.Error(t, f.CompileFilter())
+	f = Filter{
+		FieldPass: []string{"", ""},
+	}
+	assert.Error(t, f.CompileFilter())
+	f = Filter{
+		TagExclude: []string{"", ""},
+	}
+	assert.Error(t, f.CompileFilter())
+	f = Filter{
+		TagInclude: []string{"", ""},
+	}
+	assert.Error(t, f.CompileFilter())
+	filters := []TagFilter{
+		TagFilter{
+			Name:   "cpu",
+			Filter: []string{"{foobar}"},
+		}}
+	f = Filter{
+		TagDrop: filters,
+	}
+	require.Error(t, f.CompileFilter())
+	filters = []TagFilter{
+		TagFilter{
+			Name:   "cpu",
+			Filter: []string{"{foobar}"},
+		}}
+	f = Filter{
+		TagPass: filters,
+	}
+	require.Error(t, f.CompileFilter())
+}
+
+func TestFilter_ShouldMetricsPass(t *testing.T) {
+	m := testutil.TestMetric(1, "testmetric")
+	f := Filter{
+		NameDrop: []string{"foobar"},
+	}
+	require.NoError(t, f.CompileFilter())
+	require.True(t, f.ShouldMetricPass(m))
+
+	m = testutil.TestMetric(1, "foobar")
+	require.False(t, f.ShouldMetricPass(m))
+}
+
+func TestFilter_FilterTagsNoMatches(t *testing.T) {
+	pretags := map[string]string{
+		"host":  "localhost",
+		"mytag": "foobar",
+	}
+	f := Filter{
+		TagExclude: []string{"nomatch"},
+	}
+	require.NoError(t, f.CompileFilter())
+
+	f.FilterTags(pretags)
+	assert.Equal(t, map[string]string{
+		"host":  "localhost",
+		"mytag": "foobar",
+	}, pretags)
+
+	f = Filter{
+		TagInclude: []string{"nomatch"},
+	}
+	require.NoError(t, f.CompileFilter())
+
+	f.FilterTags(pretags)
+	assert.Equal(t, map[string]string{}, pretags)
+}
+
+func TestFilter_FilterTagsMatches(t *testing.T) {
+	pretags := map[string]string{
+		"host":  "localhost",
+		"mytag": "foobar",
+	}
+	f := Filter{
+		TagExclude: []string{"ho*"},
+	}
+	require.NoError(t, f.CompileFilter())
+
+	f.FilterTags(pretags)
+	assert.Equal(t, map[string]string{
+		"mytag": "foobar",
+	}, pretags)
+
+	pretags = map[string]string{
+		"host":  "localhost",
+		"mytag": "foobar",
+	}
+	f = Filter{
+		TagInclude: []string{"my*"},
+	}
+	require.NoError(t, f.CompileFilter())
+
+	f.FilterTags(pretags)
+	assert.Equal(t, map[string]string{
+		"mytag": "foobar",
+	}, pretags)
+}

internal/models/running_input.go

@@ -0,0 +1,24 @@
+package internal_models
+
+import (
+	"time"
+
+	"github.com/influxdata/telegraf"
+)
+
+type RunningInput struct {
+	Name   string
+	Input  telegraf.Input
+	Config *InputConfig
+}
+
+// InputConfig containing a name, interval, and filter
+type InputConfig struct {
+	Name              string
+	NameOverride      string
+	MeasurementPrefix string
+	MeasurementSuffix string
+	Tags              map[string]string
+	Filter            Filter
+	Interval          time.Duration
+}

internal/models/running_output.go

@@ -0,0 +1,160 @@
+package internal_models
+
+import (
+	"log"
+	"time"
+
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/internal/buffer"
+)
+
+const (
+	// Default size of metrics batch size.
+	DEFAULT_METRIC_BATCH_SIZE = 1000
+
+	// Default number of metrics kept. It should be a multiple of batch size.
+	DEFAULT_METRIC_BUFFER_LIMIT = 10000
+)
+
+// RunningOutput contains the output configuration
+type RunningOutput struct {
+	Name              string
+	Output            telegraf.Output
+	Config            *OutputConfig
+	Quiet             bool
+	MetricBufferLimit int
+	MetricBatchSize   int
+
+	metrics     *buffer.Buffer
+	failMetrics *buffer.Buffer
+}
+
+func NewRunningOutput(
+	name string,
+	output telegraf.Output,
+	conf *OutputConfig,
+	batchSize int,
+	bufferLimit int,
+) *RunningOutput {
+	if bufferLimit == 0 {
+		bufferLimit = DEFAULT_METRIC_BUFFER_LIMIT
+	}
+	if batchSize == 0 {
+		batchSize = DEFAULT_METRIC_BATCH_SIZE
+	}
+	ro := &RunningOutput{
+		Name:              name,
+		metrics:           buffer.NewBuffer(batchSize),
+		failMetrics:       buffer.NewBuffer(bufferLimit),
+		Output:            output,
+		Config:            conf,
+		MetricBufferLimit: bufferLimit,
+		MetricBatchSize:   batchSize,
+	}
+	return ro
+}
+
+// AddMetric adds a metric to the output. This function can also write cached
+// points if FlushBufferWhenFull is true.
+func (ro *RunningOutput) AddMetric(metric telegraf.Metric) {
+	if ro.Config.Filter.IsActive {
+		if !ro.Config.Filter.ShouldMetricPass(metric) {
+			return
+		}
+	}
+
+	// Filter any tagexclude/taginclude parameters before adding metric
+	if len(ro.Config.Filter.TagExclude) != 0 || len(ro.Config.Filter.TagInclude) != 0 {
+		// In order to filter out tags, we need to create a new metric, since
+		// metrics are immutable once created.
+		tags := metric.Tags()
+		fields := metric.Fields()
+		t := metric.Time()
+		name := metric.Name()
+		ro.Config.Filter.FilterTags(tags)
+		// error is not possible if creating from another metric, so ignore.
+		metric, _ = telegraf.NewMetric(name, tags, fields, t)
+	}
+
+	ro.metrics.Add(metric)
+	if ro.metrics.Len() == ro.MetricBatchSize {
+		batch := ro.metrics.Batch(ro.MetricBatchSize)
+		err := ro.write(batch)
+		if err != nil {
+			ro.failMetrics.Add(batch...)
+		}
+	}
+}
+
+// Write writes all cached points to this output.
+func (ro *RunningOutput) Write() error {
+	if !ro.Quiet {
+		log.Printf("Output [%s] buffer fullness: %d / %d metrics. "+
+			"Total gathered metrics: %d. Total dropped metrics: %d.",
+			ro.Name,
+			ro.failMetrics.Len()+ro.metrics.Len(),
+			ro.MetricBufferLimit,
+			ro.metrics.Total(),
+			ro.metrics.Drops()+ro.failMetrics.Drops())
+	}
+
+	var err error
+	if !ro.failMetrics.IsEmpty() {
+		bufLen := ro.failMetrics.Len()
+		// how many batches of failed writes we need to write.
+		nBatches := bufLen/ro.MetricBatchSize + 1
+		batchSize := ro.MetricBatchSize
+
+		for i := 0; i < nBatches; i++ {
+			// If it's the last batch, only grab the metrics that have not had
+			// a write attempt already (this is primarily to preserve order).
+			if i == nBatches-1 {
+				batchSize = bufLen % ro.MetricBatchSize
+			}
+			batch := ro.failMetrics.Batch(batchSize)
+			// If we've already failed previous writes, don't bother trying to
+			// write to this output again. We are not exiting the loop just so
+			// that we can rotate the metrics to preserve order.
+			if err == nil {
+				err = ro.write(batch)
+			}
+			if err != nil {
+				ro.failMetrics.Add(batch...)
+			}
+		}
+	}
+
+	batch := ro.metrics.Batch(ro.MetricBatchSize)
+	// see comment above about not trying to write to an already failed output.
+	// if ro.failMetrics is empty then err will always be nil at this point.
+	if err == nil {
+		err = ro.write(batch)
+	}
+	if err != nil {
+		ro.failMetrics.Add(batch...)
+		return err
+	}
+	return nil
+}
+
+func (ro *RunningOutput) write(metrics []telegraf.Metric) error {
+	if len(metrics) == 0 {
+		return nil
+	}
+	start := time.Now()
+	err := ro.Output.Write(metrics)
+	elapsed := time.Since(start)
+	if err == nil {
+		if !ro.Quiet {
+			log.Printf("Output [%s] wrote batch of %d metrics in %s\n",
+				ro.Name, len(metrics), elapsed)
+		}
+	}
+	return err
+}
+
+// OutputConfig containing name and filter
+type OutputConfig struct {
+	Name   string
+	Filter Filter
+}

internal/models/running_output_test.go

@@ -0,0 +1,568 @@
+package internal_models
+
+import (
+	"fmt"
+	"sync"
+	"testing"
+
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/testutil"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+var first5 = []telegraf.Metric{
+	testutil.TestMetric(101, "metric1"),
+	testutil.TestMetric(101, "metric2"),
+	testutil.TestMetric(101, "metric3"),
+	testutil.TestMetric(101, "metric4"),
+	testutil.TestMetric(101, "metric5"),
+}
+
+var next5 = []telegraf.Metric{
+	testutil.TestMetric(101, "metric6"),
+	testutil.TestMetric(101, "metric7"),
+	testutil.TestMetric(101, "metric8"),
+	testutil.TestMetric(101, "metric9"),
+	testutil.TestMetric(101, "metric10"),
+}
+
+// Benchmark adding metrics.
+func BenchmarkRunningOutputAddWrite(b *testing.B) {
+	conf := &OutputConfig{
+		Filter: Filter{
+			IsActive: false,
+		},
+	}
+
+	m := &perfOutput{}
+	ro := NewRunningOutput("test", m, conf, 1000, 10000)
+	ro.Quiet = true
+
+	for n := 0; n < b.N; n++ {
+		ro.AddMetric(first5[0])
+		ro.Write()
+	}
+}
+
+// Benchmark adding metrics.
+func BenchmarkRunningOutputAddWriteEvery100(b *testing.B) {
+	conf := &OutputConfig{
+		Filter: Filter{
+			IsActive: false,
+		},
+	}
+
+	m := &perfOutput{}
+	ro := NewRunningOutput("test", m, conf, 1000, 10000)
+	ro.Quiet = true
+
+	for n := 0; n < b.N; n++ {
+		ro.AddMetric(first5[0])
+		if n%100 == 0 {
+			ro.Write()
+		}
+	}
+}
+
+// Benchmark adding metrics.
+func BenchmarkRunningOutputAddFailWrites(b *testing.B) {
+	conf := &OutputConfig{
+		Filter: Filter{
+			IsActive: false,
+		},
+	}
+
+	m := &perfOutput{}
+	m.failWrite = true
+	ro := NewRunningOutput("test", m, conf, 1000, 10000)
+	ro.Quiet = true
+
+	for n := 0; n < b.N; n++ {
+		ro.AddMetric(first5[0])
+	}
+}
+
+// Test that NameDrop filters ger properly applied.
+func TestRunningOutput_DropFilter(t *testing.T) {
+	conf := &OutputConfig{
+		Filter: Filter{
+			IsActive: true,
+			NameDrop: []string{"metric1", "metric2"},
+		},
+	}
+	assert.NoError(t, conf.Filter.CompileFilter())
+
+	m := &mockOutput{}
+	ro := NewRunningOutput("test", m, conf, 1000, 10000)
+
+	for _, metric := range first5 {
+		ro.AddMetric(metric)
+	}
+	for _, metric := range next5 {
+		ro.AddMetric(metric)
+	}
+	assert.Len(t, m.Metrics(), 0)
+
+	err := ro.Write()
+	assert.NoError(t, err)
+	assert.Len(t, m.Metrics(), 8)
+}
+
+// Test that NameDrop filters without a match do nothing.
+func TestRunningOutput_PassFilter(t *testing.T) {
+	conf := &OutputConfig{
+		Filter: Filter{
+			IsActive: true,
+			NameDrop: []string{"metric1000", "foo*"},
+		},
+	}
+	assert.NoError(t, conf.Filter.CompileFilter())
+
+	m := &mockOutput{}
+	ro := NewRunningOutput("test", m, conf, 1000, 10000)
+
+	for _, metric := range first5 {
+		ro.AddMetric(metric)
+	}
+	for _, metric := range next5 {
+		ro.AddMetric(metric)
+	}
+	assert.Len(t, m.Metrics(), 0)
+
+	err := ro.Write()
+	assert.NoError(t, err)
+	assert.Len(t, m.Metrics(), 10)
+}
+
+// Test that tags are properly included
+func TestRunningOutput_TagIncludeNoMatch(t *testing.T) {
+	conf := &OutputConfig{
+		Filter: Filter{
+			IsActive:   true,
+			TagInclude: []string{"nothing*"},
+		},
+	}
+	assert.NoError(t, conf.Filter.CompileFilter())
+
+	m := &mockOutput{}
+	ro := NewRunningOutput("test", m, conf, 1000, 10000)
+
+	ro.AddMetric(first5[0])
+	assert.Len(t, m.Metrics(), 0)
+
+	err := ro.Write()
+	assert.NoError(t, err)
+	assert.Len(t, m.Metrics(), 1)
+	assert.Empty(t, m.Metrics()[0].Tags())
+}
+
+// Test that tags are properly excluded
+func TestRunningOutput_TagExcludeMatch(t *testing.T) {
+	conf := &OutputConfig{
+		Filter: Filter{
+			IsActive:   true,
+			TagExclude: []string{"tag*"},
+		},
+	}
+	assert.NoError(t, conf.Filter.CompileFilter())
+
+	m := &mockOutput{}
+	ro := NewRunningOutput("test", m, conf, 1000, 10000)
+
+	ro.AddMetric(first5[0])
+	assert.Len(t, m.Metrics(), 0)
+
+	err := ro.Write()
+	assert.NoError(t, err)
+	assert.Len(t, m.Metrics(), 1)
+	assert.Len(t, m.Metrics()[0].Tags(), 0)
+}
+
+// Test that tags are properly Excluded
+func TestRunningOutput_TagExcludeNoMatch(t *testing.T) {
+	conf := &OutputConfig{
+		Filter: Filter{
+			IsActive:   true,
+			TagExclude: []string{"nothing*"},
+		},
+	}
+	assert.NoError(t, conf.Filter.CompileFilter())
+
+	m := &mockOutput{}
+	ro := NewRunningOutput("test", m, conf, 1000, 10000)
+
+	ro.AddMetric(first5[0])
+	assert.Len(t, m.Metrics(), 0)
+
+	err := ro.Write()
+	assert.NoError(t, err)
+	assert.Len(t, m.Metrics(), 1)
+	assert.Len(t, m.Metrics()[0].Tags(), 1)
+}
+
+// Test that tags are properly included
+func TestRunningOutput_TagIncludeMatch(t *testing.T) {
+	conf := &OutputConfig{
+		Filter: Filter{
+			IsActive:   true,
+			TagInclude: []string{"tag*"},
+		},
+	}
+	assert.NoError(t, conf.Filter.CompileFilter())
+
+	m := &mockOutput{}
+	ro := NewRunningOutput("test", m, conf, 1000, 10000)
+
+	ro.AddMetric(first5[0])
+	assert.Len(t, m.Metrics(), 0)
+
+	err := ro.Write()
+	assert.NoError(t, err)
+	assert.Len(t, m.Metrics(), 1)
+	assert.Len(t, m.Metrics()[0].Tags(), 1)
+}
+
+// Test that we can write metrics with simple default setup.
+func TestRunningOutputDefault(t *testing.T) {
+	conf := &OutputConfig{
+		Filter: Filter{
+			IsActive: false,
+		},
+	}
+
+	m := &mockOutput{}
+	ro := NewRunningOutput("test", m, conf, 1000, 10000)
+
+	for _, metric := range first5 {
+		ro.AddMetric(metric)
+	}
+	for _, metric := range next5 {
+		ro.AddMetric(metric)
+	}
+	assert.Len(t, m.Metrics(), 0)
+
+	err := ro.Write()
+	assert.NoError(t, err)
+	assert.Len(t, m.Metrics(), 10)
+}
+
+// Test that running output doesn't flush until it's full when
+// FlushBufferWhenFull is set.
+func TestRunningOutputFlushWhenFull(t *testing.T) {
+	conf := &OutputConfig{
+		Filter: Filter{
+			IsActive: false,
+		},
+	}
+
+	m := &mockOutput{}
+	ro := NewRunningOutput("test", m, conf, 6, 10)
+
+	// Fill buffer to 1 under limit
+	for _, metric := range first5 {
+		ro.AddMetric(metric)
+	}
+	// no flush yet
+	assert.Len(t, m.Metrics(), 0)
+
+	// add one more metric
+	ro.AddMetric(next5[0])
+	// now it flushed
+	assert.Len(t, m.Metrics(), 6)
+
+	// add one more metric and write it manually
+	ro.AddMetric(next5[1])
+	err := ro.Write()
+	assert.NoError(t, err)
+	assert.Len(t, m.Metrics(), 7)
+}
+
+// Test that running output doesn't flush until it's full when
+// FlushBufferWhenFull is set, twice.
+func TestRunningOutputMultiFlushWhenFull(t *testing.T) {
+	conf := &OutputConfig{
+		Filter: Filter{
+			IsActive: false,
+		},
+	}
+
+	m := &mockOutput{}
+	ro := NewRunningOutput("test", m, conf, 4, 12)
+
+	// Fill buffer past limit twive
+	for _, metric := range first5 {
+		ro.AddMetric(metric)
+	}
+	for _, metric := range next5 {
+		ro.AddMetric(metric)
+	}
+	// flushed twice
+	assert.Len(t, m.Metrics(), 8)
+}
+
+func TestRunningOutputWriteFail(t *testing.T) {
+	conf := &OutputConfig{
+		Filter: Filter{
+			IsActive: false,
+		},
+	}
+
+	m := &mockOutput{}
+	m.failWrite = true
+	ro := NewRunningOutput("test", m, conf, 4, 12)
+
+	// Fill buffer to limit twice
+	for _, metric := range first5 {
+		ro.AddMetric(metric)
+	}
+	for _, metric := range next5 {
+		ro.AddMetric(metric)
+	}
+	// no successful flush yet
+	assert.Len(t, m.Metrics(), 0)
+
+	// manual write fails
+	err := ro.Write()
+	require.Error(t, err)
+	// no successful flush yet
+	assert.Len(t, m.Metrics(), 0)
+
+	m.failWrite = false
+	err = ro.Write()
+	require.NoError(t, err)
+
+	assert.Len(t, m.Metrics(), 10)
+}
+
+// Verify that the order of points is preserved during a write failure.
+func TestRunningOutputWriteFailOrder(t *testing.T) {
+	conf := &OutputConfig{
+		Filter: Filter{
+			IsActive: false,
+		},
+	}
+
+	m := &mockOutput{}
+	m.failWrite = true
+	ro := NewRunningOutput("test", m, conf, 100, 1000)
+
+	// add 5 metrics
+	for _, metric := range first5 {
+		ro.AddMetric(metric)
+	}
+	// no successful flush yet
+	assert.Len(t, m.Metrics(), 0)
+
+	// Write fails
+	err := ro.Write()
+	require.Error(t, err)
+	// no successful flush yet
+	assert.Len(t, m.Metrics(), 0)
+
+	m.failWrite = false
+	// add 5 more metrics
+	for _, metric := range next5 {
+		ro.AddMetric(metric)
+	}
+	err = ro.Write()
+	require.NoError(t, err)
+
+	// Verify that 10 metrics were written
+	assert.Len(t, m.Metrics(), 10)
+	// Verify that they are in order
+	expected := append(first5, next5...)
+	assert.Equal(t, expected, m.Metrics())
+}
+
+// Verify that the order of points is preserved during many write failures.
+func TestRunningOutputWriteFailOrder2(t *testing.T) {
+	conf := &OutputConfig{
+		Filter: Filter{
+			IsActive: false,
+		},
+	}
+
+	m := &mockOutput{}
+	m.failWrite = true
+	ro := NewRunningOutput("test", m, conf, 5, 100)
+
+	// add 5 metrics
+	for _, metric := range first5 {
+		ro.AddMetric(metric)
+	}
+	// Write fails
+	err := ro.Write()
+	require.Error(t, err)
+	// no successful flush yet
+	assert.Len(t, m.Metrics(), 0)
+
+	// add 5 metrics
+	for _, metric := range next5 {
+		ro.AddMetric(metric)
+	}
+	// Write fails
+	err = ro.Write()
+	require.Error(t, err)
+	// no successful flush yet
+	assert.Len(t, m.Metrics(), 0)
+
+	// add 5 metrics
+	for _, metric := range first5 {
+		ro.AddMetric(metric)
+	}
+	// Write fails
+	err = ro.Write()
+	require.Error(t, err)
+	// no successful flush yet
+	assert.Len(t, m.Metrics(), 0)
+
+	// add 5 metrics
+	for _, metric := range next5 {
+		ro.AddMetric(metric)
+	}
+	// Write fails
+	err = ro.Write()
+	require.Error(t, err)
+	// no successful flush yet
+	assert.Len(t, m.Metrics(), 0)
+
+	m.failWrite = false
+	err = ro.Write()
+	require.NoError(t, err)
+
+	// Verify that 10 metrics were written
+	assert.Len(t, m.Metrics(), 20)
+	// Verify that they are in order
+	expected := append(first5, next5...)
+	expected = append(expected, first5...)
+	expected = append(expected, next5...)
+	assert.Equal(t, expected, m.Metrics())
+}
+
+// Verify that the order of points is preserved when there is a remainder
+// of points for the batch.
+//
+// ie, with a batch size of 5:
+//
+//     1 2 3 4 5 6 <-- order, failed points
+//     6 1 2 3 4 5 <-- order, after 1st write failure (1 2 3 4 5 was batch)
+//     1 2 3 4 5 6 <-- order, after 2nd write failure, (6 was batch)
+//
+func TestRunningOutputWriteFailOrder3(t *testing.T) {
+	conf := &OutputConfig{
+		Filter: Filter{
+			IsActive: false,
+		},
+	}
+
+	m := &mockOutput{}
+	m.failWrite = true
+	ro := NewRunningOutput("test", m, conf, 5, 1000)
+
+	// add 5 metrics
+	for _, metric := range first5 {
+		ro.AddMetric(metric)
+	}
+	// no successful flush yet
+	assert.Len(t, m.Metrics(), 0)
+
+	// Write fails
+	err := ro.Write()
+	require.Error(t, err)
+	// no successful flush yet
+	assert.Len(t, m.Metrics(), 0)
+
+	// add and attempt to write a single metric:
+	ro.AddMetric(next5[0])
+	err = ro.Write()
+	require.Error(t, err)
+
+	// unset fail and write metrics
+	m.failWrite = false
+	err = ro.Write()
+	require.NoError(t, err)
+
+	// Verify that 6 metrics were written
+	assert.Len(t, m.Metrics(), 6)
+	// Verify that they are in order
+	expected := append(first5, next5[0])
+	assert.Equal(t, expected, m.Metrics())
+}
+
+type mockOutput struct {
+	sync.Mutex
+
+	metrics []telegraf.Metric
+
+	// if true, mock a write failure
+	failWrite bool
+}
+
+func (m *mockOutput) Connect() error {
+	return nil
+}
+
+func (m *mockOutput) Close() error {
+	return nil
+}
+
+func (m *mockOutput) Description() string {
+	return ""
+}
+
+func (m *mockOutput) SampleConfig() string {
+	return ""
+}
+
+func (m *mockOutput) Write(metrics []telegraf.Metric) error {
+	m.Lock()
+	defer m.Unlock()
+	if m.failWrite {
+		return fmt.Errorf("Failed Write!")
+	}
+
+	if m.metrics == nil {
+		m.metrics = []telegraf.Metric{}
+	}
+
+	for _, metric := range metrics {
+		m.metrics = append(m.metrics, metric)
+	}
+	return nil
+}
+
+func (m *mockOutput) Metrics() []telegraf.Metric {
+	m.Lock()
+	defer m.Unlock()
+	return m.metrics
+}
+
+type perfOutput struct {
+	// if true, mock a write failure
+	failWrite bool
+}
+
+func (m *perfOutput) Connect() error {
+	return nil
+}
+
+func (m *perfOutput) Close() error {
+	return nil
+}
+
+func (m *perfOutput) Description() string {
+	return ""
+}
+
+func (m *perfOutput) SampleConfig() string {
+	return ""
+}
+
+func (m *perfOutput) Write(metrics []telegraf.Metric) error {
+	if m.failWrite {
+		return fmt.Errorf("Failed Write!")
+	}
+	return nil
+}

metric.go

@@ -0,0 +1,94 @@
+package telegraf
+
+import (
+	"time"
+
+	"github.com/influxdata/influxdb/client/v2"
+)
+
+type Metric interface {
+	// Name returns the measurement name of the metric
+	Name() string
+
+	// Name returns the tags associated with the metric
+	Tags() map[string]string
+
+	// Time return the timestamp for the metric
+	Time() time.Time
+
+	// UnixNano returns the unix nano time of the metric
+	UnixNano() int64
+
+	// Fields returns the fields for the metric
+	Fields() map[string]interface{}
+
+	// String returns a line-protocol string of the metric
+	String() string
+
+	// PrecisionString returns a line-protocol string of the metric, at precision
+	PrecisionString(precison string) string
+
+	// Point returns a influxdb client.Point object
+	Point() *client.Point
+}
+
+// metric is a wrapper of the influxdb client.Point struct
+type metric struct {
+	pt *client.Point
+}
+
+// NewMetric returns a metric with the given timestamp. If a timestamp is not
+// given, then data is sent to the database without a timestamp, in which case
+// the server will assign local time upon reception. NOTE: it is recommended to
+// send data with a timestamp.
+func NewMetric(
+	name string,
+	tags map[string]string,
+	fields map[string]interface{},
+	t ...time.Time,
+) (Metric, error) {
+	var T time.Time
+	if len(t) > 0 {
+		T = t[0]
+	}
+
+	pt, err := client.NewPoint(name, tags, fields, T)
+	if err != nil {
+		return nil, err
+	}
+	return &metric{
+		pt: pt,
+	}, nil
+}
+
+func (m *metric) Name() string {
+	return m.pt.Name()
+}
+
+func (m *metric) Tags() map[string]string {
+	return m.pt.Tags()
+}
+
+func (m *metric) Time() time.Time {
+	return m.pt.Time()
+}
+
+func (m *metric) UnixNano() int64 {
+	return m.pt.UnixNano()
+}
+
+func (m *metric) Fields() map[string]interface{} {
+	return m.pt.Fields()
+}
+
+func (m *metric) String() string {
+	return m.pt.String()
+}
+
+func (m *metric) PrecisionString(precison string) string {
+	return m.pt.PrecisionString(precison)
+}
+
+func (m *metric) Point() *client.Point {
+	return m.pt
+}

metric_test.go

@@ -0,0 +1,83 @@
+package telegraf
+
+import (
+	"fmt"
+	"math"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestNewMetric(t *testing.T) {
+	now := time.Now()
+
+	tags := map[string]string{
+		"host":       "localhost",
+		"datacenter": "us-east-1",
+	}
+	fields := map[string]interface{}{
+		"usage_idle": float64(99),
+		"usage_busy": float64(1),
+	}
+	m, err := NewMetric("cpu", tags, fields, now)
+	assert.NoError(t, err)
+
+	assert.Equal(t, tags, m.Tags())
+	assert.Equal(t, fields, m.Fields())
+	assert.Equal(t, "cpu", m.Name())
+	assert.Equal(t, now, m.Time())
+	assert.Equal(t, now.UnixNano(), m.UnixNano())
+}
+
+func TestNewMetricString(t *testing.T) {
+	now := time.Now()
+
+	tags := map[string]string{
+		"host": "localhost",
+	}
+	fields := map[string]interface{}{
+		"usage_idle": float64(99),
+	}
+	m, err := NewMetric("cpu", tags, fields, now)
+	assert.NoError(t, err)
+
+	lineProto := fmt.Sprintf("cpu,host=localhost usage_idle=99 %d",
+		now.UnixNano())
+	assert.Equal(t, lineProto, m.String())
+
+	lineProtoPrecision := fmt.Sprintf("cpu,host=localhost usage_idle=99 %d",
+		now.Unix())
+	assert.Equal(t, lineProtoPrecision, m.PrecisionString("s"))
+}
+
+func TestNewMetricStringNoTime(t *testing.T) {
+	tags := map[string]string{
+		"host": "localhost",
+	}
+	fields := map[string]interface{}{
+		"usage_idle": float64(99),
+	}
+	m, err := NewMetric("cpu", tags, fields)
+	assert.NoError(t, err)
+
+	lineProto := fmt.Sprintf("cpu,host=localhost usage_idle=99")
+	assert.Equal(t, lineProto, m.String())
+
+	lineProtoPrecision := fmt.Sprintf("cpu,host=localhost usage_idle=99")
+	assert.Equal(t, lineProtoPrecision, m.PrecisionString("s"))
+}
+
+func TestNewMetricFailNaN(t *testing.T) {
+	now := time.Now()
+
+	tags := map[string]string{
+		"host": "localhost",
+	}
+	fields := map[string]interface{}{
+		"usage_idle": math.NaN(),
+	}
+
+	_, err := NewMetric("cpu", tags, fields, now)
+	assert.Error(t, err)
+}

output.go

@@ -1,8 +1,4 @@
-package outputs
+package telegraf
-
-import (
-	"github.com/influxdb/influxdb/client/v2"
-)
 
 type Output interface {
 	// Connect to the Output
@@ -14,7 +10,7 @@ type Output interface {
 	// SampleConfig returns the default configuration of the Output
 	SampleConfig() string
 	// Write takes in group of points to be written to the Output
-	Write(points []*client.Point) error
+	Write(metrics []Metric) error
 }
 
 type ServiceOutput interface {
@@ -27,17 +23,9 @@ type ServiceOutput interface {
 	// SampleConfig returns the default configuration of the Output
 	SampleConfig() string
 	// Write takes in group of points to be written to the Output
-	Write(points []*client.Point) error
+	Write(metrics []Metric) error
 	// Start the "service" that will provide an Output
 	Start() error
 	// Stop the "service" that will provide an Output
 	Stop()
 }
-
-type Creator func() Output
-
-var Outputs = map[string]Creator{}
-
-func Add(name string, creator Creator) {
-	Outputs[name] = creator
-}

outputs/all/all.go

@@ -1,16 +0,0 @@
-package all
-
-import (
-	_ "github.com/influxdb/telegraf/outputs/amon"
-	_ "github.com/influxdb/telegraf/outputs/amqp"
-	_ "github.com/influxdb/telegraf/outputs/datadog"
-	_ "github.com/influxdb/telegraf/outputs/influxdb"
-	_ "github.com/influxdb/telegraf/outputs/kafka"
-	_ "github.com/influxdb/telegraf/outputs/kinesis"
-	_ "github.com/influxdb/telegraf/outputs/librato"
-	_ "github.com/influxdb/telegraf/outputs/mqtt"
-	_ "github.com/influxdb/telegraf/outputs/nsq"
-	_ "github.com/influxdb/telegraf/outputs/opentsdb"
-	_ "github.com/influxdb/telegraf/outputs/prometheus_client"
-	_ "github.com/influxdb/telegraf/outputs/riemann"
-)

outputs/amqp/amqp.go

@@ -1,161 +0,0 @@
-package amqp
-
-import (
-	"bytes"
-	"fmt"
-	"log"
-	"sync"
-	"time"
-
-	"github.com/influxdb/influxdb/client/v2"
-	"github.com/influxdb/telegraf/outputs"
-	"github.com/streadway/amqp"
-)
-
-type AMQP struct {
-	// AMQP brokers to send metrics to
-	URL string
-	// AMQP exchange
-	Exchange string
-	// Routing Key Tag
-	RoutingTag string `toml:"routing_tag"`
-	// InfluxDB database
-	Database string
-	// InfluxDB retention policy
-	RetentionPolicy string
-	// InfluxDB precision
-	Precision string
-
-	channel *amqp.Channel
-	sync.Mutex
-	headers amqp.Table
-}
-
-const (
-	DefaultRetentionPolicy = "default"
-	DefaultDatabase        = "telegraf"
-	DefaultPrecision       = "s"
-)
-
-var sampleConfig = `
-  # AMQP url
-  url = "amqp://localhost:5672/influxdb"
-  # AMQP exchange
-  exchange = "telegraf"
-  # Telegraf tag to use as a routing key
-  #  ie, if this tag exists, it's value will be used as the routing key
-  routing_tag = "host"
-
-  # InfluxDB retention policy
-  #retention_policy = "default"
-  # InfluxDB database
-  #database = "telegraf"
-  # InfluxDB precision
-  #precision = "s"
-`
-
-func (q *AMQP) Connect() error {
-	q.Lock()
-	defer q.Unlock()
-
-	q.headers = amqp.Table{
-		"precision":        q.Precision,
-		"database":         q.Database,
-		"retention_policy": q.RetentionPolicy,
-	}
-
-	connection, err := amqp.Dial(q.URL)
-	if err != nil {
-		return err
-	}
-	channel, err := connection.Channel()
-	if err != nil {
-		return fmt.Errorf("Failed to open a channel: %s", err)
-	}
-
-	err = channel.ExchangeDeclare(
-		q.Exchange, // name
-		"topic",    // type
-		true,       // durable
-		false,      // delete when unused
-		false,      // internal
-		false,      // no-wait
-		nil,        // arguments
-	)
-	if err != nil {
-		return fmt.Errorf("Failed to declare an exchange: %s", err)
-	}
-	q.channel = channel
-	go func() {
-		log.Printf("Closing: %s", <-connection.NotifyClose(make(chan *amqp.Error)))
-		log.Printf("Trying to reconnect")
-		for err := q.Connect(); err != nil; err = q.Connect() {
-			log.Println(err)
-			time.Sleep(10 * time.Second)
-		}
-
-	}()
-	return nil
-}
-
-func (q *AMQP) Close() error {
-	return q.channel.Close()
-}
-
-func (q *AMQP) SampleConfig() string {
-	return sampleConfig
-}
-
-func (q *AMQP) Description() string {
-	return "Configuration for the AMQP server to send metrics to"
-}
-
-func (q *AMQP) Write(points []*client.Point) error {
-	q.Lock()
-	defer q.Unlock()
-	if len(points) == 0 {
-		return nil
-	}
-	var outbuf = make(map[string][][]byte)
-
-	for _, p := range points {
-		// Combine tags from Point and BatchPoints and grab the resulting
-		// line-protocol output string to write to AMQP
-		var value, key string
-		value = p.String()
-
-		if q.RoutingTag != "" {
-			if h, ok := p.Tags()[q.RoutingTag]; ok {
-				key = h
-			}
-		}
-		outbuf[key] = append(outbuf[key], []byte(value))
-
-	}
-	for key, buf := range outbuf {
-		err := q.channel.Publish(
-			q.Exchange, // exchange
-			key,        // routing key
-			false,      // mandatory
-			false,      // immediate
-			amqp.Publishing{
-				Headers:     q.headers,
-				ContentType: "text/plain",
-				Body:        bytes.Join(buf, []byte("\n")),
-			})
-		if err != nil {
-			return fmt.Errorf("FAILED to send amqp message: %s", err)
-		}
-	}
-	return nil
-}
-
-func init() {
-	outputs.Add("amqp", func() outputs.Output {
-		return &AMQP{
-			Database:        DefaultDatabase,
-			Precision:       DefaultPrecision,
-			RetentionPolicy: DefaultRetentionPolicy,
-		}
-	})
-}

outputs/influxdb/README.md

@@ -1,12 +0,0 @@
-# InfluxDB Output Plugin
-
-This plugin writes to [InfluxDB](https://www.influxdb.com) via HTTP or UDP.
-
-Required parameters:
-
-* `urls`: List of strings, this is for InfluxDB clustering
-support. On each flush interval, Telegraf will randomly choose one of the urls
-to write to. Each URL should start with either `http://` or `udp://`
-* `database`: The name of the database to write to.
-
-

outputs/influxdb/influxdb.go

@@ -1,160 +0,0 @@
-package influxdb
-
-import (
-	"errors"
-	"fmt"
-	"log"
-	"math/rand"
-	"net/url"
-	"strings"
-
-	"github.com/influxdb/influxdb/client/v2"
-	"github.com/influxdb/telegraf/internal"
-	"github.com/influxdb/telegraf/outputs"
-)
-
-type InfluxDB struct {
-	// URL is only for backwards compatability
-	URL        string
-	URLs       []string `toml:"urls"`
-	Username   string
-	Password   string
-	Database   string
-	UserAgent  string
-	Precision  string
-	Timeout    internal.Duration
-	UDPPayload int `toml:"udp_payload"`
-
-	conns []client.Client
-}
-
-var sampleConfig = `
-  # The full HTTP or UDP endpoint URL for your InfluxDB instance.
-  # Multiple urls can be specified but it is assumed that they are part of the same
-  # cluster, this means that only ONE of the urls will be written to each interval.
-  # urls = ["udp://localhost:8089"] # UDP endpoint example
-  urls = ["http://localhost:8086"] # required
-  # The target database for metrics (telegraf will create it if not exists)
-  database = "telegraf" # required
-  # Precision of writes, valid values are n, u, ms, s, m, and h
-  # note: using second precision greatly helps InfluxDB compression
-  precision = "s"
-
-  # Connection timeout (for the connection with InfluxDB), formatted as a string.
-  # If not provided, will default to 0 (no timeout)
-  # timeout = "5s"
-  # username = "telegraf"
-  # password = "metricsmetricsmetricsmetrics"
-  # Set the user agent for HTTP POSTs (can be useful for log differentiation)
-  # user_agent = "telegraf"
-  # Set UDP payload size, defaults to InfluxDB UDP Client default (512 bytes)
-  # udp_payload = 512
-`
-
-func (i *InfluxDB) Connect() error {
-	var urls []string
-	for _, u := range i.URLs {
-		urls = append(urls, u)
-	}
-
-	// Backward-compatability with single Influx URL config files
-	// This could eventually be removed in favor of specifying the urls as a list
-	if i.URL != "" {
-		urls = append(urls, i.URL)
-	}
-
-	var conns []client.Client
-	for _, u := range urls {
-		switch {
-		case strings.HasPrefix(u, "udp"):
-			parsed_url, err := url.Parse(u)
-			if err != nil {
-				return err
-			}
-
-			if i.UDPPayload == 0 {
-				i.UDPPayload = client.UDPPayloadSize
-			}
-			c, err := client.NewUDPClient(client.UDPConfig{
-				Addr:        parsed_url.Host,
-				PayloadSize: i.UDPPayload,
-			})
-			if err != nil {
-				return err
-			}
-			conns = append(conns, c)
-		default:
-			// If URL doesn't start with "udp", assume HTTP client
-			c, err := client.NewHTTPClient(client.HTTPConfig{
-				Addr:      u,
-				Username:  i.Username,
-				Password:  i.Password,
-				UserAgent: i.UserAgent,
-				Timeout:   i.Timeout.Duration,
-			})
-			if err != nil {
-				return err
-			}
-
-			// Create Database if it doesn't exist
-			_, e := c.Query(client.Query{
-				Command: fmt.Sprintf("CREATE DATABASE IF NOT EXISTS %s", i.Database),
-			})
-
-			if e != nil {
-				log.Println("Database creation failed: " + e.Error())
-			}
-
-			conns = append(conns, c)
-		}
-	}
-
-	i.conns = conns
-	return nil
-}
-
-func (i *InfluxDB) Close() error {
-	// InfluxDB client does not provide a Close() function
-	return nil
-}
-
-func (i *InfluxDB) SampleConfig() string {
-	return sampleConfig
-}
-
-func (i *InfluxDB) Description() string {
-	return "Configuration for influxdb server to send metrics to"
-}
-
-// Choose a random server in the cluster to write to until a successful write
-// occurs, logging each unsuccessful. If all servers fail, return error.
-func (i *InfluxDB) Write(points []*client.Point) error {
-	bp, _ := client.NewBatchPoints(client.BatchPointsConfig{
-		Database:  i.Database,
-		Precision: i.Precision,
-	})
-
-	for _, point := range points {
-		bp.AddPoint(point)
-	}
-
-	// This will get set to nil if a successful write occurs
-	err := errors.New("Could not write to any InfluxDB server in cluster")
-
-	p := rand.Perm(len(i.conns))
-	for _, n := range p {
-		if e := i.conns[n].Write(bp); e != nil {
-			log.Println("ERROR: " + e.Error())
-		} else {
-			err = nil
-			break
-		}
-	}
-	return err
-}
-
-func init() {
-	outputs.Add("influxdb", func() outputs.Output {
-		return &InfluxDB{}
-	})
-}

outputs/kafka/kafka.go

@@ -1,85 +0,0 @@
-package kafka
-
-import (
-	"errors"
-	"fmt"
-
-	"github.com/Shopify/sarama"
-	"github.com/influxdb/influxdb/client/v2"
-	"github.com/influxdb/telegraf/outputs"
-)
-
-type Kafka struct {
-	// Kafka brokers to send metrics to
-	Brokers []string
-	// Kafka topic
-	Topic string
-	// Routing Key Tag
-	RoutingTag string `toml:"routing_tag"`
-
-	producer sarama.SyncProducer
-}
-
-var sampleConfig = `
-  # URLs of kafka brokers
-  brokers = ["localhost:9092"]
-  # Kafka topic for producer messages
-  topic = "telegraf"
-  # Telegraf tag to use as a routing key
-  #  ie, if this tag exists, it's value will be used as the routing key
-  routing_tag = "host"
-`
-
-func (k *Kafka) Connect() error {
-	producer, err := sarama.NewSyncProducer(k.Brokers, nil)
-	if err != nil {
-		return err
-	}
-	k.producer = producer
-	return nil
-}
-
-func (k *Kafka) Close() error {
-	return k.producer.Close()
-}
-
-func (k *Kafka) SampleConfig() string {
-	return sampleConfig
-}
-
-func (k *Kafka) Description() string {
-	return "Configuration for the Kafka server to send metrics to"
-}
-
-func (k *Kafka) Write(points []*client.Point) error {
-	if len(points) == 0 {
-		return nil
-	}
-
-	for _, p := range points {
-		// Combine tags from Point and BatchPoints and grab the resulting
-		// line-protocol output string to write to Kafka
-		value := p.String()
-
-		m := &sarama.ProducerMessage{
-			Topic: k.Topic,
-			Value: sarama.StringEncoder(value),
-		}
-		if h, ok := p.Tags()[k.RoutingTag]; ok {
-			m.Key = sarama.StringEncoder(h)
-		}
-
-		_, _, err := k.producer.SendMessage(m)
-		if err != nil {
-			return errors.New(fmt.Sprintf("FAILED to send kafka message: %s\n",
-				err))
-		}
-	}
-	return nil
-}
-
-func init() {
-	outputs.Add("kafka", func() outputs.Output {
-		return &Kafka{}
-	})
-}

outputs/librato/librato.go

@@ -1,165 +0,0 @@
-package librato
-
-import (
-	"bytes"
-	"encoding/json"
-	"fmt"
-	"log"
-	"net/http"
-
-	"github.com/influxdb/influxdb/client/v2"
-	"github.com/influxdb/telegraf/internal"
-	"github.com/influxdb/telegraf/outputs"
-)
-
-type Librato struct {
-	ApiUser   string
-	ApiToken  string
-	SourceTag string
-	Timeout   internal.Duration
-
-	apiUrl string
-	client *http.Client
-}
-
-var sampleConfig = `
-  # Librator API Docs
-  # http://dev.librato.com/v1/metrics-authentication
-
-  # Librato API user
-  api_user = "telegraf@influxdb.com" # required.
-
-  # Librato API token
-  api_token = "my-secret-token" # required.
-
-  # Tag Field to populate source attribute (optional)
-  # This is typically the _hostname_ from which the metric was obtained.
-  source_tag = "hostname"
-
-  # Connection timeout.
-  # timeout = "5s"
-`
-
-type Metrics struct {
-	Gauges []*Gauge `json:"gauges"`
-}
-
-type Gauge struct {
-	Name        string  `json:"name"`
-	Value       float64 `json:"value"`
-	Source      string  `json:"source"`
-	MeasureTime int64   `json:"measure_time"`
-}
-
-const librato_api = "https://metrics-api.librato.com/v1/metrics"
-
-func NewLibrato(apiUrl string) *Librato {
-	return &Librato{
-		apiUrl: apiUrl,
-	}
-}
-
-func (l *Librato) Connect() error {
-	if l.ApiUser == "" || l.ApiToken == "" {
-		return fmt.Errorf("api_user and api_token are required fields for librato output")
-	}
-	l.client = &http.Client{
-		Timeout: l.Timeout.Duration,
-	}
-	return nil
-}
-
-func (l *Librato) Write(points []*client.Point) error {
-	if len(points) == 0 {
-		return nil
-	}
-	metrics := Metrics{}
-	var tempGauges = make([]*Gauge, len(points))
-	var acceptablePoints = 0
-	for _, pt := range points {
-		if gauge, err := l.buildGauge(pt); err == nil {
-			tempGauges[acceptablePoints] = gauge
-			acceptablePoints += 1
-		} else {
-			log.Printf("unable to build Gauge for %s, skipping\n", pt.Name())
-		}
-	}
-	metrics.Gauges = make([]*Gauge, acceptablePoints)
-	copy(metrics.Gauges, tempGauges[0:])
-	metricsBytes, err := json.Marshal(metrics)
-	if err != nil {
-		return fmt.Errorf("unable to marshal Metrics, %s\n", err.Error())
-	}
-	req, err := http.NewRequest("POST", l.apiUrl, bytes.NewBuffer(metricsBytes))
-	if err != nil {
-		return fmt.Errorf("unable to create http.Request, %s\n", err.Error())
-	}
-	req.Header.Add("Content-Type", "application/json")
-	req.SetBasicAuth(l.ApiUser, l.ApiToken)
-
-	resp, err := l.client.Do(req)
-	if err != nil {
-		return fmt.Errorf("error POSTing metrics, %s\n", err.Error())
-	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode != 200 {
-		return fmt.Errorf("received bad status code, %d\n", resp.StatusCode)
-	}
-
-	return nil
-}
-
-func (l *Librato) SampleConfig() string {
-	return sampleConfig
-}
-
-func (l *Librato) Description() string {
-	return "Configuration for Librato API to send metrics to."
-}
-
-func (l *Librato) buildGauge(pt *client.Point) (*Gauge, error) {
-	gauge := &Gauge{
-		Name:        pt.Name(),
-		MeasureTime: pt.Time().Unix(),
-	}
-	if err := gauge.setValue(pt.Fields()["value"]); err != nil {
-		return gauge, fmt.Errorf("unable to extract value from Fields, %s\n", err.Error())
-	}
-	if l.SourceTag != "" {
-		if source, ok := pt.Tags()[l.SourceTag]; ok {
-			gauge.Source = source
-		} else {
-			return gauge, fmt.Errorf("undeterminable Source type from Field, %s\n", l.SourceTag)
-		}
-	}
-	return gauge, nil
-}
-
-func (g *Gauge) setValue(v interface{}) error {
-	switch d := v.(type) {
-	case int:
-		g.Value = float64(int(d))
-	case int32:
-		g.Value = float64(int32(d))
-	case int64:
-		g.Value = float64(int64(d))
-	case float32:
-		g.Value = float64(d)
-	case float64:
-		g.Value = float64(d)
-	default:
-		return fmt.Errorf("undeterminable type %+v", d)
-	}
-	return nil
-}
-
-func (l *Librato) Close() error {
-	return nil
-}
-
-func init() {
-	outputs.Add("librato", func() outputs.Output {
-		return NewLibrato(librato_api)
-	})
-}

outputs/mqtt/mqtt.go

@@ -1,190 +0,0 @@
-package mqtt
-
-import (
-	"crypto/rand"
-	"crypto/tls"
-	"crypto/x509"
-	"fmt"
-	"io/ioutil"
-	"strings"
-	"sync"
-
-	paho "git.eclipse.org/gitroot/paho/org.eclipse.paho.mqtt.golang.git"
-	"github.com/influxdb/influxdb/client/v2"
-	"github.com/influxdb/telegraf/internal"
-	"github.com/influxdb/telegraf/outputs"
-)
-
-const MaxClientIdLen = 8
-const MaxRetryCount = 3
-const ClientIdPrefix = "telegraf"
-
-type MQTT struct {
-	Servers     []string `toml:"servers"`
-	Username    string
-	Password    string
-	Database    string
-	Timeout     internal.Duration
-	TopicPrefix string
-
-	Client *paho.Client
-	Opts   *paho.ClientOptions
-	sync.Mutex
-}
-
-var sampleConfig = `
-  servers = ["localhost:1883"] # required.
-
-  # MQTT outputs send metrics to this topic format
-  #    "<topic_prefix>/host/<hostname>/<pluginname>/"
-  #   ex: prefix/host/web01.example.com/mem/available
-  # topic_prefix = "prefix"
-
-  # username and password to connect MQTT server.
-  # username = "telegraf"
-  # password = "metricsmetricsmetricsmetrics"
-`
-
-func (m *MQTT) Connect() error {
-	var err error
-	m.Lock()
-	defer m.Unlock()
-
-	m.Opts, err = m.CreateOpts()
-	if err != nil {
-		return err
-	}
-
-	m.Client = paho.NewClient(m.Opts)
-	if token := m.Client.Connect(); token.Wait() && token.Error() != nil {
-		return token.Error()
-	}
-
-	return nil
-}
-
-func (m *MQTT) Close() error {
-	if m.Client.IsConnected() {
-		m.Client.Disconnect(20)
-	}
-	return nil
-}
-
-func (m *MQTT) SampleConfig() string {
-	return sampleConfig
-}
-
-func (m *MQTT) Description() string {
-	return "Configuration for MQTT server to send metrics to"
-}
-
-func (m *MQTT) Write(points []*client.Point) error {
-	m.Lock()
-	defer m.Unlock()
-	if len(points) == 0 {
-		return nil
-	}
-	hostname, ok := points[0].Tags()["host"]
-	if !ok {
-		hostname = ""
-	}
-
-	for _, p := range points {
-		var t []string
-		if m.TopicPrefix != "" {
-			t = append(t, m.TopicPrefix)
-		}
-		tm := strings.Split(p.Name(), "_")
-		if len(tm) < 2 {
-			tm = []string{p.Name(), "stat"}
-		}
-
-		t = append(t, "host", hostname, tm[0], tm[1])
-		topic := strings.Join(t, "/")
-
-		value := p.String()
-		err := m.publish(topic, value)
-		if err != nil {
-			return fmt.Errorf("Could not write to MQTT server, %s", err)
-		}
-	}
-
-	return nil
-}
-
-func (m *MQTT) publish(topic, body string) error {
-	token := m.Client.Publish(topic, 0, false, body)
-	token.Wait()
-	if token.Error() != nil {
-		return token.Error()
-	}
-	return nil
-}
-
-func (m *MQTT) CreateOpts() (*paho.ClientOptions, error) {
-	opts := paho.NewClientOptions()
-
-	clientId := getRandomClientId()
-	opts.SetClientID(clientId)
-
-	TLSConfig := &tls.Config{InsecureSkipVerify: false}
-	ca := "" // TODO
-	scheme := "tcp"
-	if ca != "" {
-		scheme = "ssl"
-		certPool, err := getCertPool(ca)
-		if err != nil {
-			return nil, err
-		}
-		TLSConfig.RootCAs = certPool
-	}
-	TLSConfig.InsecureSkipVerify = true // TODO
-	opts.SetTLSConfig(TLSConfig)
-
-	user := m.Username
-	if user == "" {
-		opts.SetUsername(user)
-	}
-	password := m.Password
-	if password != "" {
-		opts.SetPassword(password)
-	}
-
-	if len(m.Servers) == 0 {
-		return opts, fmt.Errorf("could not get host infomations")
-	}
-	for _, host := range m.Servers {
-		server := fmt.Sprintf("%s://%s", scheme, host)
-
-		opts.AddBroker(server)
-	}
-	opts.SetAutoReconnect(true)
-	return opts, nil
-}
-
-func getRandomClientId() string {
-	const alphanum = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
-	var bytes = make([]byte, MaxClientIdLen)
-	rand.Read(bytes)
-	for i, b := range bytes {
-		bytes[i] = alphanum[b%byte(len(alphanum))]
-	}
-	return ClientIdPrefix + "-" + string(bytes)
-}
-
-func getCertPool(pemPath string) (*x509.CertPool, error) {
-	certs := x509.NewCertPool()
-
-	pemData, err := ioutil.ReadFile(pemPath)
-	if err != nil {
-		return nil, err
-	}
-	certs.AppendCertsFromPEM(pemData)
-	return certs, nil
-}
-
-func init() {
-	outputs.Add("mqtt", func() outputs.Output {
-		return &MQTT{}
-	})
-}

outputs/nsq/nsq.go

@@ -1,71 +0,0 @@
-package nsq
-
-import (
-	"fmt"
-	"github.com/influxdb/influxdb/client/v2"
-	"github.com/influxdb/telegraf/outputs"
-	"github.com/nsqio/go-nsq"
-)
-
-type NSQ struct {
-	Server   string
-	Topic    string
-	producer *nsq.Producer
-}
-
-var sampleConfig = `
-  # Location of nsqd instance listening on TCP
-  server = "localhost:4150"
-  # NSQ topic for producer messages
-  topic = "telegraf"
-`
-
-func (n *NSQ) Connect() error {
-	config := nsq.NewConfig()
-	producer, err := nsq.NewProducer(n.Server, config)
-
-	if err != nil {
-		return err
-	}
-
-	n.producer = producer
-	return nil
-}
-
-func (n *NSQ) Close() error {
-	n.producer.Stop()
-	return nil
-}
-
-func (n *NSQ) SampleConfig() string {
-	return sampleConfig
-}
-
-func (n *NSQ) Description() string {
-	return "Send telegraf measurements to NSQD"
-}
-
-func (n *NSQ) Write(points []*client.Point) error {
-	if len(points) == 0 {
-		return nil
-	}
-
-	for _, p := range points {
-		// Combine tags from Point and BatchPoints and grab the resulting
-		// line-protocol output string to write to NSQ
-		value := p.String()
-
-		err := n.producer.Publish(n.Topic, []byte(value))
-
-		if err != nil {
-			return fmt.Errorf("FAILED to send NSQD message: %s", err)
-		}
-	}
-	return nil
-}
-
-func init() {
-	outputs.Add("nsq", func() outputs.Output {
-		return &NSQ{}
-	})
-}

outputs/opentsdb/opentsdb_test.go

@@ -1,71 +0,0 @@
-package opentsdb
-
-import (
-	"reflect"
-	"testing"
-
-	"github.com/influxdb/telegraf/testutil"
-	"github.com/stretchr/testify/require"
-)
-
-func TestBuildTagsTelnet(t *testing.T) {
-	var tagtests = []struct {
-		ptIn    map[string]string
-		outTags []string
-	}{
-		{
-			map[string]string{"one": "two", "three": "four"},
-			[]string{"one=two", "three=four"},
-		},
-		{
-			map[string]string{"aaa": "bbb"},
-			[]string{"aaa=bbb"},
-		},
-		{
-			map[string]string{"one": "two", "aaa": "bbb"},
-			[]string{"aaa=bbb", "one=two"},
-		},
-		{
-			map[string]string{},
-			[]string{},
-		},
-	}
-	for _, tt := range tagtests {
-		tags := buildTags(tt.ptIn)
-		if !reflect.DeepEqual(tags, tt.outTags) {
-			t.Errorf("\nexpected %+v\ngot %+v\n", tt.outTags, tags)
-		}
-	}
-}
-
-func TestWrite(t *testing.T) {
-	if testing.Short() {
-		t.Skip("Skipping integration test in short mode")
-	}
-
-	o := &OpenTSDB{
-		Host:   testutil.GetLocalHost(),
-		Port:   4242,
-		Prefix: "prefix.test.",
-	}
-
-	// Verify that we can connect to the OpenTSDB instance
-	err := o.Connect()
-	require.NoError(t, err)
-
-	// Verify that we can successfully write data to OpenTSDB
-	err = o.Write(testutil.MockBatchPoints().Points())
-	require.NoError(t, err)
-
-	// Verify postive and negative test cases of writing data
-	bp := testutil.MockBatchPoints()
-	bp.AddPoint(testutil.TestPoint(float64(1.0), "justametric.float"))
-	bp.AddPoint(testutil.TestPoint(int64(123456789), "justametric.int"))
-	bp.AddPoint(testutil.TestPoint(uint64(123456789012345), "justametric.uint"))
-	bp.AddPoint(testutil.TestPoint("Lorem Ipsum", "justametric.string"))
-	bp.AddPoint(testutil.TestPoint(float64(42.0), "justametric.anotherfloat"))
-
-	err = o.Write(bp.Points())
-	require.NoError(t, err)
-
-}

outputs/prometheus_client/prometheus_client.go

@@ -1,125 +0,0 @@
-package prometheus_client
-
-import (
-	"fmt"
-	"log"
-	"net/http"
-
-	"github.com/influxdb/influxdb/client/v2"
-	"github.com/influxdb/telegraf/outputs"
-	"github.com/prometheus/client_golang/prometheus"
-)
-
-type PrometheusClient struct {
-	Listen  string
-	metrics map[string]*prometheus.UntypedVec
-}
-
-var sampleConfig = `
-  # Address to listen on
-  # listen = ":9126"
-`
-
-func (p *PrometheusClient) Start() error {
-	if p.Listen == "" {
-		p.Listen = "localhost:9126"
-	}
-
-	http.Handle("/metrics", prometheus.Handler())
-	server := &http.Server{
-		Addr: p.Listen,
-	}
-
-	p.metrics = make(map[string]*prometheus.UntypedVec)
-	go server.ListenAndServe()
-	return nil
-}
-
-func (p *PrometheusClient) Stop() {
-	// TODO: Use a listener for http.Server that counts active connections
-	//       that can be stopped and closed gracefully
-}
-
-func (p *PrometheusClient) Connect() error {
-	// This service output does not need to make any further connections
-	return nil
-}
-
-func (p *PrometheusClient) Close() error {
-	// This service output does not need to close any of its connections
-	return nil
-}
-
-func (p *PrometheusClient) SampleConfig() string {
-	return sampleConfig
-}
-
-func (p *PrometheusClient) Description() string {
-	return "Configuration for the Prometheus client to spawn"
-}
-
-func (p *PrometheusClient) Write(points []*client.Point) error {
-	if len(points) == 0 {
-		return nil
-	}
-
-	for _, point := range points {
-		var labels []string
-		key := point.Name()
-
-		for k, _ := range point.Tags() {
-			if len(k) > 0 {
-				labels = append(labels, k)
-			}
-		}
-
-		if _, ok := p.metrics[key]; !ok {
-			p.metrics[key] = prometheus.NewUntypedVec(
-				prometheus.UntypedOpts{
-					Name: key,
-					Help: fmt.Sprintf("Telegraf collected point '%s'", key),
-				},
-				labels,
-			)
-			prometheus.MustRegister(p.metrics[key])
-		}
-
-		l := prometheus.Labels{}
-		for tk, tv := range point.Tags() {
-			l[tk] = tv
-		}
-
-		for _, val := range point.Fields() {
-			switch val := val.(type) {
-			default:
-				log.Printf("Prometheus output, unsupported type. key: %s, type: %T\n",
-					key, val)
-			case int64:
-				m, err := p.metrics[key].GetMetricWith(l)
-				if err != nil {
-					log.Printf("ERROR Getting metric in Prometheus output, "+
-						"key: %s, labels: %v,\nerr: %s\n",
-						key, l, err.Error())
-					continue
-				}
-				m.Set(float64(val))
-			case float64:
-				m, err := p.metrics[key].GetMetricWith(l)
-				if err != nil {
-					log.Printf("ERROR Getting metric in Prometheus output, "+
-						"key: %s, labels: %v,\nerr: %s\n",
-						key, l, err.Error())
-					continue
-				}
-				m.Set(val)
-			}
-		}
-	}
-	return nil
-}
-
-func init() {
-	outputs.Add("prometheus_client", func() outputs.Output {
-		return &PrometheusClient{}
-	})
-}

outputs/prometheus_client/prometheus_client_test.go

@@ -1,98 +0,0 @@
-package prometheus_client
-
-import (
-	"testing"
-
-	"github.com/influxdb/influxdb/client/v2"
-	"github.com/influxdb/telegraf/plugins/prometheus"
-	"github.com/influxdb/telegraf/testutil"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-)
-
-var pTesting *PrometheusClient
-
-func TestPrometheusWritePointEmptyTag(t *testing.T) {
-	if testing.Short() {
-		t.Skip("Skipping integration test in short mode")
-	}
-
-	p := &prometheus.Prometheus{
-		Urls: []string{"http://localhost:9126/metrics"},
-	}
-	tags := make(map[string]string)
-	pt1, _ := client.NewPoint(
-		"test_point_1",
-		tags,
-		map[string]interface{}{"value": 0.0})
-	pt2, _ := client.NewPoint(
-		"test_point_2",
-		tags,
-		map[string]interface{}{"value": 1.0})
-	var points = []*client.Point{
-		pt1,
-		pt2,
-	}
-	require.NoError(t, pTesting.Write(points))
-
-	expected := []struct {
-		name  string
-		value float64
-		tags  map[string]string
-	}{
-		{"test_point_1", 0.0, tags},
-		{"test_point_2", 1.0, tags},
-	}
-
-	var acc testutil.Accumulator
-
-	require.NoError(t, p.Gather(&acc))
-	for _, e := range expected {
-		assert.NoError(t, acc.ValidateValue(e.name, e.value))
-	}
-}
-
-func TestPrometheusWritePointTag(t *testing.T) {
-	if testing.Short() {
-		t.Skip("Skipping integration test in short mode")
-	}
-
-	p := &prometheus.Prometheus{
-		Urls: []string{"http://localhost:9126/metrics"},
-	}
-	tags := make(map[string]string)
-	tags["testtag"] = "testvalue"
-	pt1, _ := client.NewPoint(
-		"test_point_3",
-		tags,
-		map[string]interface{}{"value": 0.0})
-	pt2, _ := client.NewPoint(
-		"test_point_4",
-		tags,
-		map[string]interface{}{"value": 1.0})
-	var points = []*client.Point{
-		pt1,
-		pt2,
-	}
-	require.NoError(t, pTesting.Write(points))
-
-	expected := []struct {
-		name  string
-		value float64
-	}{
-		{"test_point_3", 0.0},
-		{"test_point_4", 1.0},
-	}
-
-	var acc testutil.Accumulator
-
-	require.NoError(t, p.Gather(&acc))
-	for _, e := range expected {
-		assert.True(t, acc.CheckTaggedValue(e.name, e.value, tags))
-	}
-}
-
-func init() {
-	pTesting = &PrometheusClient{Listen: "localhost:9126"}
-	pTesting.Start()
-}

outputs/riemann/riemann.go

@@ -1,95 +0,0 @@
-package riemann
-
-import (
-	"errors"
-	"fmt"
-	"os"
-
-	"github.com/amir/raidman"
-	"github.com/influxdb/influxdb/client/v2"
-	"github.com/influxdb/telegraf/outputs"
-)
-
-type Riemann struct {
-	URL       string
-	Transport string
-
-	client *raidman.Client
-}
-
-var sampleConfig = `
-  # URL of server
-  url = "localhost:5555"
-  # transport protocol to use either tcp or udp
-  transport = "tcp"
-`
-
-func (r *Riemann) Connect() error {
-	c, err := raidman.Dial(r.Transport, r.URL)
-
-	if err != nil {
-		return err
-	}
-
-	r.client = c
-	return nil
-}
-
-func (r *Riemann) Close() error {
-	r.client.Close()
-	return nil
-}
-
-func (r *Riemann) SampleConfig() string {
-	return sampleConfig
-}
-
-func (r *Riemann) Description() string {
-	return "Configuration for the Riemann server to send metrics to"
-}
-
-func (r *Riemann) Write(points []*client.Point) error {
-	if len(points) == 0 {
-		return nil
-	}
-
-	var events []*raidman.Event
-	for _, p := range points {
-		ev := buildEvent(p)
-		events = append(events, ev)
-	}
-
-	var senderr = r.client.SendMulti(events)
-	if senderr != nil {
-		return errors.New(fmt.Sprintf("FAILED to send riemann message: %s\n",
-			senderr))
-	}
-
-	return nil
-}
-
-func buildEvent(p *client.Point) *raidman.Event {
-	host, ok := p.Tags()["host"]
-	if !ok {
-		hostname, err := os.Hostname()
-		if err != nil {
-			host = "unknown"
-		} else {
-			host = hostname
-		}
-	}
-
-	var event = &raidman.Event{
-		Host:    host,
-		Service: p.Name(),
-		Metric:  p.Fields()["value"],
-	}
-
-	return event
-}
-
-func init() {
-	outputs.Add("riemann", func() outputs.Output {
-		return &Riemann{}
-	})
-}

plugins/all/all.go

@@ -1,37 +0,0 @@
-package all
-
-import (
-	_ "github.com/influxdb/telegraf/plugins/aerospike"
-	_ "github.com/influxdb/telegraf/plugins/apache"
-	_ "github.com/influxdb/telegraf/plugins/bcache"
-	_ "github.com/influxdb/telegraf/plugins/disque"
-	_ "github.com/influxdb/telegraf/plugins/elasticsearch"
-	_ "github.com/influxdb/telegraf/plugins/exec"
-	_ "github.com/influxdb/telegraf/plugins/haproxy"
-	_ "github.com/influxdb/telegraf/plugins/httpjson"
-	_ "github.com/influxdb/telegraf/plugins/influxdb"
-	_ "github.com/influxdb/telegraf/plugins/jolokia"
-	_ "github.com/influxdb/telegraf/plugins/kafka_consumer"
-	_ "github.com/influxdb/telegraf/plugins/leofs"
-	_ "github.com/influxdb/telegraf/plugins/lustre2"
-	_ "github.com/influxdb/telegraf/plugins/mailchimp"
-	_ "github.com/influxdb/telegraf/plugins/memcached"
-	_ "github.com/influxdb/telegraf/plugins/mongodb"
-	_ "github.com/influxdb/telegraf/plugins/mysql"
-	_ "github.com/influxdb/telegraf/plugins/nginx"
-	_ "github.com/influxdb/telegraf/plugins/phpfpm"
-	_ "github.com/influxdb/telegraf/plugins/ping"
-	_ "github.com/influxdb/telegraf/plugins/postgresql"
-	_ "github.com/influxdb/telegraf/plugins/procstat"
-	_ "github.com/influxdb/telegraf/plugins/prometheus"
-	_ "github.com/influxdb/telegraf/plugins/puppetagent"
-	_ "github.com/influxdb/telegraf/plugins/rabbitmq"
-	_ "github.com/influxdb/telegraf/plugins/redis"
-	_ "github.com/influxdb/telegraf/plugins/rethinkdb"
-	_ "github.com/influxdb/telegraf/plugins/statsd"
-	_ "github.com/influxdb/telegraf/plugins/system"
-	_ "github.com/influxdb/telegraf/plugins/trig"
-	_ "github.com/influxdb/telegraf/plugins/twemproxy"
-	_ "github.com/influxdb/telegraf/plugins/zfs"
-	_ "github.com/influxdb/telegraf/plugins/zookeeper"
-)

plugins/elasticsearch/README.md

@@ -1,319 +0,0 @@
-# Elasticsearch plugin
-
-#### Plugin arguments:
-- **servers** []string: list of one or more Elasticsearch servers
-- **local** boolean: If false, it will read the indices stats from all nodes
-- **cluster_health** boolean: If true, it will also obtain cluster level stats
-
-#### Description
-
-The [elasticsearch](https://www.elastic.co/) plugin queries endpoints to obtain
-[node](https://www.elastic.co/guide/en/elasticsearch/reference/current/cluster-nodes-stats.html)
-and optionally [cluster](https://www.elastic.co/guide/en/elasticsearch/reference/current/cluster-health.html) stats.
-
-Example:
-
-```
-    [elasticsearch]
-
-    servers = ["http://localhost:9200"]
-
-    local = true
-
-    cluster_health = true
-```
-
-# Measurements
-#### cluster measurements (utilizes fields instead of single values):
-
-contains `status`, `timed_out`, `number_of_nodes`, `number_of_data_nodes`,
-`active_primary_shards`, `active_shards`, `relocating_shards`,
-`initializing_shards`, `unassigned_shards` fields
-- elasticsearch_cluster_health
-
-contains `status`, `number_of_shards`, `number_of_replicas`, `active_primary_shards`,
-`active_shards`, `relocating_shards`, `initializing_shards`, `unassigned_shards` fields
-- elasticsearch_indices
-
-#### node measurements:
-
-field data circuit breaker measurement names:
-- elasticsearch_breakers_fielddata_estimated_size_in_bytes value=0
-- elasticsearch_breakers_fielddata_overhead value=1.03
-- elasticsearch_breakers_fielddata_tripped value=0
-- elasticsearch_breakers_fielddata_limit_size_in_bytes value=623326003
-- elasticsearch_breakers_request_estimated_size_in_bytes value=0
-- elasticsearch_breakers_request_overhead value=1.0
-- elasticsearch_breakers_request_tripped value=0
-- elasticsearch_breakers_request_limit_size_in_bytes value=415550668
-- elasticsearch_breakers_parent_overhead value=1.0
-- elasticsearch_breakers_parent_tripped value=0
-- elasticsearch_breakers_parent_limit_size_in_bytes value=727213670
-- elasticsearch_breakers_parent_estimated_size_in_bytes value=0
-
-File system information, data path, free disk space, read/write measurement names:
-- elasticsearch_fs_timestamp value=1436460392946
-- elasticsearch_fs_total_free_in_bytes value=16909316096
-- elasticsearch_fs_total_available_in_bytes value=15894814720
-- elasticsearch_fs_total_total_in_bytes value=19507089408
-
-indices size, document count, indexing and deletion times, search times,
-field cache size, merges and flushes measurement names:
-- elasticsearch_indices_id_cache_memory_size_in_bytes value=0
-- elasticsearch_indices_completion_size_in_bytes value=0
-- elasticsearch_indices_suggest_total value=0
-- elasticsearch_indices_suggest_time_in_millis value=0
-- elasticsearch_indices_suggest_current value=0
-- elasticsearch_indices_query_cache_memory_size_in_bytes value=0
-- elasticsearch_indices_query_cache_evictions value=0
-- elasticsearch_indices_query_cache_hit_count value=0
-- elasticsearch_indices_query_cache_miss_count value=0
-- elasticsearch_indices_store_size_in_bytes value=37715234
-- elasticsearch_indices_store_throttle_time_in_millis value=215
-- elasticsearch_indices_merges_current_docs value=0
-- elasticsearch_indices_merges_current_size_in_bytes value=0
-- elasticsearch_indices_merges_total value=133
-- elasticsearch_indices_merges_total_time_in_millis value=21060
-- elasticsearch_indices_merges_total_docs value=203672
-- elasticsearch_indices_merges_total_size_in_bytes value=142900226
-- elasticsearch_indices_merges_current value=0
-- elasticsearch_indices_filter_cache_memory_size_in_bytes value=7384
-- elasticsearch_indices_filter_cache_evictions value=0
-- elasticsearch_indices_indexing_index_total value=84790
-- elasticsearch_indices_indexing_index_time_in_millis value=29680
-- elasticsearch_indices_indexing_index_current value=0
-- elasticsearch_indices_indexing_noop_update_total value=0
-- elasticsearch_indices_indexing_throttle_time_in_millis value=0
-- elasticsearch_indices_indexing_delete_tota value=13879
-- elasticsearch_indices_indexing_delete_time_in_millis value=1139
-- elasticsearch_indices_indexing_delete_current value=0
-- elasticsearch_indices_get_exists_time_in_millis value=0
-- elasticsearch_indices_get_missing_total value=1
-- elasticsearch_indices_get_missing_time_in_millis value=2
-- elasticsearch_indices_get_current value=0
-- elasticsearch_indices_get_total value=1
-- elasticsearch_indices_get_time_in_millis value=2
-- elasticsearch_indices_get_exists_total value=0
-- elasticsearch_indices_refresh_total value=1076
-- elasticsearch_indices_refresh_total_time_in_millis value=20078
-- elasticsearch_indices_percolate_current value=0
-- elasticsearch_indices_percolate_memory_size_in_bytes value=-1
-- elasticsearch_indices_percolate_queries value=0
-- elasticsearch_indices_percolate_total value=0
-- elasticsearch_indices_percolate_time_in_millis value=0
-- elasticsearch_indices_translog_operations value=17702
-- elasticsearch_indices_translog_size_in_bytes value=17
-- elasticsearch_indices_recovery_current_as_source value=0
-- elasticsearch_indices_recovery_current_as_target value=0
-- elasticsearch_indices_recovery_throttle_time_in_millis value=0
-- elasticsearch_indices_docs_count value=29652
-- elasticsearch_indices_docs_deleted value=5229
-- elasticsearch_indices_flush_total_time_in_millis value=2401
-- elasticsearch_indices_flush_total value=115
-- elasticsearch_indices_fielddata_memory_size_in_bytes value=12996
-- elasticsearch_indices_fielddata_evictions value=0
-- elasticsearch_indices_search_fetch_current value=0
-- elasticsearch_indices_search_open_contexts value=0
-- elasticsearch_indices_search_query_total value=1452
-- elasticsearch_indices_search_query_time_in_millis value=5695
-- elasticsearch_indices_search_query_current value=0
-- elasticsearch_indices_search_fetch_total value=414
-- elasticsearch_indices_search_fetch_time_in_millis value=146
-- elasticsearch_indices_warmer_current value=0
-- elasticsearch_indices_warmer_total value=2319
-- elasticsearch_indices_warmer_total_time_in_millis value=448
-- elasticsearch_indices_segments_count value=134
-- elasticsearch_indices_segments_memory_in_bytes value=1285212
-- elasticsearch_indices_segments_index_writer_memory_in_bytes value=0
-- elasticsearch_indices_segments_index_writer_max_memory_in_bytes value=172368955
-- elasticsearch_indices_segments_version_map_memory_in_bytes value=611844
-- elasticsearch_indices_segments_fixed_bit_set_memory_in_bytes value=0
-
-HTTP connection measurement names:
-- elasticsearch_http_current_open value=3
-- elasticsearch_http_total_opened value=3
-
-JVM stats, memory pool information, garbage collection, buffer pools measurement names:
-- elasticsearch_jvm_timestamp value=1436460392945
-- elasticsearch_jvm_uptime_in_millis value=202245
-- elasticsearch_jvm_mem_non_heap_used_in_bytes value=39634576
-- elasticsearch_jvm_mem_non_heap_committed_in_bytes value=40841216
-- elasticsearch_jvm_mem_pools_young_max_in_bytes value=279183360
-- elasticsearch_jvm_mem_pools_young_peak_used_in_bytes value=71630848
-- elasticsearch_jvm_mem_pools_young_peak_max_in_bytes value=279183360
-- elasticsearch_jvm_mem_pools_young_used_in_bytes value=32685760
-- elasticsearch_jvm_mem_pools_survivor_peak_used_in_bytes value=8912888
-- elasticsearch_jvm_mem_pools_survivor_peak_max_in_bytes value=34865152
-- elasticsearch_jvm_mem_pools_survivor_used_in_bytes value=8912880
-- elasticsearch_jvm_mem_pools_survivor_max_in_bytes value=34865152
-- elasticsearch_jvm_mem_pools_old_peak_max_in_bytes value=724828160
-- elasticsearch_jvm_mem_pools_old_used_in_bytes value=11110928
-- elasticsearch_jvm_mem_pools_old_max_in_bytes value=724828160
-- elasticsearch_jvm_mem_pools_old_peak_used_in_bytes value=14354608
-- elasticsearch_jvm_mem_heap_used_in_bytes value=52709568
-- elasticsearch_jvm_mem_heap_used_percent value=5
-- elasticsearch_jvm_mem_heap_committed_in_bytes value=259522560
-- elasticsearch_jvm_mem_heap_max_in_bytes value=1038876672
-- elasticsearch_jvm_threads_peak_count value=45
-- elasticsearch_jvm_threads_count value=44
-- elasticsearch_jvm_gc_collectors_young_collection_count value=2
-- elasticsearch_jvm_gc_collectors_young_collection_time_in_millis value=98
-- elasticsearch_jvm_gc_collectors_old_collection_count value=1
-- elasticsearch_jvm_gc_collectors_old_collection_time_in_millis value=24
-- elasticsearch_jvm_buffer_pools_direct_count value=40
-- elasticsearch_jvm_buffer_pools_direct_used_in_bytes value=6304239
-- elasticsearch_jvm_buffer_pools_direct_total_capacity_in_bytes value=6304239
-- elasticsearch_jvm_buffer_pools_mapped_count value=0
-- elasticsearch_jvm_buffer_pools_mapped_used_in_bytes value=0
-- elasticsearch_jvm_buffer_pools_mapped_total_capacity_in_bytes value=0
-
-TCP information measurement names:
-- elasticsearch_network_tcp_in_errs value=0
-- elasticsearch_network_tcp_passive_opens value=16
-- elasticsearch_network_tcp_curr_estab value=29
-- elasticsearch_network_tcp_in_segs value=113
-- elasticsearch_network_tcp_out_segs value=97
-- elasticsearch_network_tcp_retrans_segs value=0
-- elasticsearch_network_tcp_attempt_fails value=0
-- elasticsearch_network_tcp_active_opens value=13
-- elasticsearch_network_tcp_estab_resets value=0
-- elasticsearch_network_tcp_out_rsts value=0
-
-Operating system stats, load average, cpu, mem, swap measurement names:
-- elasticsearch_os_swap_used_in_bytes value=0
-- elasticsearch_os_swap_free_in_bytes value=487997440
-- elasticsearch_os_timestamp value=1436460392944
-- elasticsearch_os_uptime_in_millis value=25092
-- elasticsearch_os_cpu_sys value=0
-- elasticsearch_os_cpu_user value=0
-- elasticsearch_os_cpu_idle value=99
-- elasticsearch_os_cpu_usage value=0
-- elasticsearch_os_cpu_stolen value=0
-- elasticsearch_os_mem_free_percent value=74
-- elasticsearch_os_mem_used_percent value=25
-- elasticsearch_os_mem_actual_free_in_bytes value=1565470720
-- elasticsearch_os_mem_actual_used_in_bytes value=534159360
-- elasticsearch_os_mem_free_in_bytes value=477761536
-- elasticsearch_os_mem_used_in_bytes value=1621868544
-
-Process statistics, memory consumption, cpu usage, open file descriptors measurement names:
-- elasticsearch_process_mem_resident_in_bytes value=246382592
-- elasticsearch_process_mem_share_in_bytes value=18747392
-- elasticsearch_process_mem_total_virtual_in_bytes value=4747890688
-- elasticsearch_process_timestamp value=1436460392945
-- elasticsearch_process_open_file_descriptors value=160
-- elasticsearch_process_cpu_total_in_millis value=15480
-- elasticsearch_process_cpu_percent value=2
-- elasticsearch_process_cpu_sys_in_millis value=1870
-- elasticsearch_process_cpu_user_in_millis value=13610
-
-Statistics about each thread pool, including current size, queue and rejected tasks measurement names:
-- elasticsearch_thread_pool_merge_threads value=6
-- elasticsearch_thread_pool_merge_queue value=4
-- elasticsearch_thread_pool_merge_active value=5
-- elasticsearch_thread_pool_merge_rejected value=2
-- elasticsearch_thread_pool_merge_largest value=5
-- elasticsearch_thread_pool_merge_completed value=1
-- elasticsearch_thread_pool_bulk_threads value=4
-- elasticsearch_thread_pool_bulk_queue value=5
-- elasticsearch_thread_pool_bulk_active value=7
-- elasticsearch_thread_pool_bulk_rejected value=3
-- elasticsearch_thread_pool_bulk_largest value=1
-- elasticsearch_thread_pool_bulk_completed value=4
-- elasticsearch_thread_pool_warmer_threads value=2
-- elasticsearch_thread_pool_warmer_queue value=7
-- elasticsearch_thread_pool_warmer_active value=3
-- elasticsearch_thread_pool_warmer_rejected value=2
-- elasticsearch_thread_pool_warmer_largest value=3
-- elasticsearch_thread_pool_warmer_completed value=1
-- elasticsearch_thread_pool_get_largest value=2
-- elasticsearch_thread_pool_get_completed value=1
-- elasticsearch_thread_pool_get_threads value=1
-- elasticsearch_thread_pool_get_queue value=8
-- elasticsearch_thread_pool_get_active value=4
-- elasticsearch_thread_pool_get_rejected value=3
-- elasticsearch_thread_pool_index_threads value=6
-- elasticsearch_thread_pool_index_queue value=8
-- elasticsearch_thread_pool_index_active value=4
-- elasticsearch_thread_pool_index_rejected value=2
-- elasticsearch_thread_pool_index_largest value=3
-- elasticsearch_thread_pool_index_completed value=6
-- elasticsearch_thread_pool_suggest_threads value=2
-- elasticsearch_thread_pool_suggest_queue value=7
-- elasticsearch_thread_pool_suggest_active value=2
-- elasticsearch_thread_pool_suggest_rejected value=1
-- elasticsearch_thread_pool_suggest_largest value=8
-- elasticsearch_thread_pool_suggest_completed value=3
-- elasticsearch_thread_pool_fetch_shard_store_queue value=7
-- elasticsearch_thread_pool_fetch_shard_store_active value=4
-- elasticsearch_thread_pool_fetch_shard_store_rejected value=2
-- elasticsearch_thread_pool_fetch_shard_store_largest value=4
-- elasticsearch_thread_pool_fetch_shard_store_completed value=1
-- elasticsearch_thread_pool_fetch_shard_store_threads value=1
-- elasticsearch_thread_pool_management_threads value=2
-- elasticsearch_thread_pool_management_queue value=3
-- elasticsearch_thread_pool_management_active value=1
-- elasticsearch_thread_pool_management_rejected value=6
-- elasticsearch_thread_pool_management_largest value=2
-- elasticsearch_thread_pool_management_completed value=22
-- elasticsearch_thread_pool_percolate_queue value=23
-- elasticsearch_thread_pool_percolate_active value=13
-- elasticsearch_thread_pool_percolate_rejected value=235
-- elasticsearch_thread_pool_percolate_largest value=23
-- elasticsearch_thread_pool_percolate_completed value=33
-- elasticsearch_thread_pool_percolate_threads value=123
-- elasticsearch_thread_pool_listener_active value=4
-- elasticsearch_thread_pool_listener_rejected value=8
-- elasticsearch_thread_pool_listener_largest value=1
-- elasticsearch_thread_pool_listener_completed value=1
-- elasticsearch_thread_pool_listener_threads value=1
-- elasticsearch_thread_pool_listener_queue value=2
-- elasticsearch_thread_pool_search_rejected value=7
-- elasticsearch_thread_pool_search_largest value=2
-- elasticsearch_thread_pool_search_completed value=4
-- elasticsearch_thread_pool_search_threads value=5
-- elasticsearch_thread_pool_search_queue value=7
-- elasticsearch_thread_pool_search_active value=2
-- elasticsearch_thread_pool_fetch_shard_started_threads value=3
-- elasticsearch_thread_pool_fetch_shard_started_queue value=1
-- elasticsearch_thread_pool_fetch_shard_started_active value=5
-- elasticsearch_thread_pool_fetch_shard_started_rejected value=6
-- elasticsearch_thread_pool_fetch_shard_started_largest value=4
-- elasticsearch_thread_pool_fetch_shard_started_completed value=54
-- elasticsearch_thread_pool_refresh_rejected value=4
-- elasticsearch_thread_pool_refresh_largest value=8
-- elasticsearch_thread_pool_refresh_completed value=3
-- elasticsearch_thread_pool_refresh_threads value=23
-- elasticsearch_thread_pool_refresh_queue value=7
-- elasticsearch_thread_pool_refresh_active value=3
-- elasticsearch_thread_pool_optimize_threads value=3
-- elasticsearch_thread_pool_optimize_queue value=4
-- elasticsearch_thread_pool_optimize_active value=1
-- elasticsearch_thread_pool_optimize_rejected value=2
-- elasticsearch_thread_pool_optimize_largest value=7
-- elasticsearch_thread_pool_optimize_completed value=3
-- elasticsearch_thread_pool_snapshot_largest value=1
-- elasticsearch_thread_pool_snapshot_completed value=0
-- elasticsearch_thread_pool_snapshot_threads value=8
-- elasticsearch_thread_pool_snapshot_queue value=5
-- elasticsearch_thread_pool_snapshot_active value=6
-- elasticsearch_thread_pool_snapshot_rejected value=2
-- elasticsearch_thread_pool_generic_threads value=1
-- elasticsearch_thread_pool_generic_queue value=4
-- elasticsearch_thread_pool_generic_active value=6
-- elasticsearch_thread_pool_generic_rejected value=3
-- elasticsearch_thread_pool_generic_largest value=2
-- elasticsearch_thread_pool_generic_completed value=27
-- elasticsearch_thread_pool_flush_threads value=3
-- elasticsearch_thread_pool_flush_queue value=8
-- elasticsearch_thread_pool_flush_active value=0
-- elasticsearch_thread_pool_flush_rejected value=1
-- elasticsearch_thread_pool_flush_largest value=5
-- elasticsearch_thread_pool_flush_completed value=3
-
-Transport statistics about sent and received bytes in cluster communication measurement names:
-- elasticsearch_transport_server_open value=13
-- elasticsearch_transport_rx_count value=6
-- elasticsearch_transport_rx_size_in_bytes value=1380
-- elasticsearch_transport_tx_count value=6
-- elasticsearch_transport_tx_size_in_bytes value=1380

plugins/elasticsearch/testdata_test.go

@@ -1,759 +0,0 @@
-package elasticsearch
-
-const clusterResponse = `
-{
-   "cluster_name": "elasticsearch_telegraf",
-   "status": "green",
-   "timed_out": false,
-   "number_of_nodes": 3,
-   "number_of_data_nodes": 3,
-   "active_primary_shards": 5,
-   "active_shards": 15,
-   "relocating_shards": 0,
-   "initializing_shards": 0,
-   "unassigned_shards": 0,
-   "indices": {
-      "v1": {
-         "status": "green",
-         "number_of_shards": 10,
-         "number_of_replicas": 1,
-         "active_primary_shards": 10,
-         "active_shards": 20,
-         "relocating_shards": 0,
-         "initializing_shards": 0,
-         "unassigned_shards": 0
-      },
-      "v2": {
-         "status": "red",
-         "number_of_shards": 10,
-         "number_of_replicas": 1,
-         "active_primary_shards": 0,
-         "active_shards": 0,
-         "relocating_shards": 0,
-         "initializing_shards": 0,
-         "unassigned_shards": 20
-      }
-   }
-}
-`
-
-var clusterHealthExpected = map[string]interface{}{
-	"status":                "green",
-	"timed_out":             false,
-	"number_of_nodes":       3,
-	"number_of_data_nodes":  3,
-	"active_primary_shards": 5,
-	"active_shards":         15,
-	"relocating_shards":     0,
-	"initializing_shards":   0,
-	"unassigned_shards":     0,
-}
-
-var v1IndexExpected = map[string]interface{}{
-	"status":                "green",
-	"number_of_shards":      10,
-	"number_of_replicas":    1,
-	"active_primary_shards": 10,
-	"active_shards":         20,
-	"relocating_shards":     0,
-	"initializing_shards":   0,
-	"unassigned_shards":     0,
-}
-
-var v2IndexExpected = map[string]interface{}{
-	"status":                "red",
-	"number_of_shards":      10,
-	"number_of_replicas":    1,
-	"active_primary_shards": 0,
-	"active_shards":         0,
-	"relocating_shards":     0,
-	"initializing_shards":   0,
-	"unassigned_shards":     20,
-}
-
-const statsResponse = `
-{
-  "cluster_name": "es-testcluster",
-  "nodes": {
-    "SDFsfSDFsdfFSDSDfSFDSDF": {
-      "timestamp": 1436365550135,
-      "name": "test.host.com",
-      "transport_address": "inet[/127.0.0.1:9300]",
-      "host": "test",
-      "ip": [
-        "inet[/127.0.0.1:9300]",
-        "NONE"
-      ],
-      "attributes": {
-        "master": "true"
-      },
-      "indices": {
-        "docs": {
-          "count": 29652,
-          "deleted": 5229
-        },
-        "store": {
-          "size_in_bytes": 37715234,
-          "throttle_time_in_millis": 215
-        },
-        "indexing": {
-          "index_total": 84790,
-          "index_time_in_millis": 29680,
-          "index_current": 0,
-          "delete_total": 13879,
-          "delete_time_in_millis": 1139,
-          "delete_current": 0,
-          "noop_update_total": 0,
-          "is_throttled": false,
-          "throttle_time_in_millis": 0
-        },
-        "get": {
-          "total": 1,
-          "time_in_millis": 2,
-          "exists_total": 0,
-          "exists_time_in_millis": 0,
-          "missing_total": 1,
-          "missing_time_in_millis": 2,
-          "current": 0
-        },
-        "search": {
-          "open_contexts": 0,
-          "query_total": 1452,
-          "query_time_in_millis": 5695,
-          "query_current": 0,
-          "fetch_total": 414,
-          "fetch_time_in_millis": 146,
-          "fetch_current": 0
-        },
-        "merges": {
-          "current": 0,
-          "current_docs": 0,
-          "current_size_in_bytes": 0,
-          "total": 133,
-          "total_time_in_millis": 21060,
-          "total_docs": 203672,
-          "total_size_in_bytes": 142900226
-        },
-        "refresh": {
-          "total": 1076,
-          "total_time_in_millis": 20078
-        },
-        "flush": {
-          "total": 115,
-          "total_time_in_millis": 2401
-        },
-        "warmer": {
-          "current": 0,
-          "total": 2319,
-          "total_time_in_millis": 448
-        },
-        "filter_cache": {
-          "memory_size_in_bytes": 7384,
-          "evictions": 0
-        },
-        "id_cache": {
-          "memory_size_in_bytes": 0
-        },
-        "fielddata": {
-          "memory_size_in_bytes": 12996,
-          "evictions": 0
-        },
-        "percolate": {
-          "total": 0,
-          "time_in_millis": 0,
-          "current": 0,
-          "memory_size_in_bytes": -1,
-          "memory_size": "-1b",
-          "queries": 0
-        },
-        "completion": {
-          "size_in_bytes": 0
-        },
-        "segments": {
-          "count": 134,
-          "memory_in_bytes": 1285212,
-          "index_writer_memory_in_bytes": 0,
-          "index_writer_max_memory_in_bytes": 172368955,
-          "version_map_memory_in_bytes": 611844,
-          "fixed_bit_set_memory_in_bytes": 0
-        },
-        "translog": {
-          "operations": 17702,
-          "size_in_bytes": 17
-        },
-        "suggest": {
-          "total": 0,
-          "time_in_millis": 0,
-          "current": 0
-        },
-        "query_cache": {
-          "memory_size_in_bytes": 0,
-          "evictions": 0,
-          "hit_count": 0,
-          "miss_count": 0
-        },
-        "recovery": {
-          "current_as_source": 0,
-          "current_as_target": 0,
-          "throttle_time_in_millis": 0
-        }
-      },
-      "os": {
-        "timestamp": 1436460392944,
-        "load_average": [
-          0.01,
-          0.04,
-          0.05
-        ],
-        "mem": {
-          "free_in_bytes": 477761536,
-          "used_in_bytes": 1621868544,
-          "free_percent": 74,
-          "used_percent": 25,
-          "actual_free_in_bytes": 1565470720,
-          "actual_used_in_bytes": 534159360
-        },
-        "swap": {
-          "used_in_bytes": 0,
-          "free_in_bytes": 487997440
-        }
-      },
-      "process": {
-        "timestamp": 1436460392945,
-        "open_file_descriptors": 160,
-        "cpu": {
-          "percent": 2,
-          "sys_in_millis": 1870,
-          "user_in_millis": 13610,
-          "total_in_millis": 15480
-        },
-        "mem": {
-          "total_virtual_in_bytes": 4747890688
-        }
-      },
-      "jvm": {
-        "timestamp": 1436460392945,
-        "uptime_in_millis": 202245,
-        "mem": {
-          "heap_used_in_bytes": 52709568,
-          "heap_used_percent": 5,
-          "heap_committed_in_bytes": 259522560,
-          "heap_max_in_bytes": 1038876672,
-          "non_heap_used_in_bytes": 39634576,
-          "non_heap_committed_in_bytes": 40841216,
-          "pools": {
-            "young": {
-              "used_in_bytes": 32685760,
-              "max_in_bytes": 279183360,
-              "peak_used_in_bytes": 71630848,
-              "peak_max_in_bytes": 279183360
-            },
-            "survivor": {
-              "used_in_bytes": 8912880,
-              "max_in_bytes": 34865152,
-              "peak_used_in_bytes": 8912888,
-              "peak_max_in_bytes": 34865152
-            },
-            "old": {
-              "used_in_bytes": 11110928,
-              "max_in_bytes": 724828160,
-              "peak_used_in_bytes": 14354608,
-              "peak_max_in_bytes": 724828160
-            }
-          }
-        },
-        "threads": {
-          "count": 44,
-          "peak_count": 45
-        },
-        "gc": {
-          "collectors": {
-            "young": {
-              "collection_count": 2,
-              "collection_time_in_millis": 98
-            },
-            "old": {
-              "collection_count": 1,
-              "collection_time_in_millis": 24
-            }
-          }
-        },
-        "buffer_pools": {
-          "direct": {
-            "count": 40,
-            "used_in_bytes": 6304239,
-            "total_capacity_in_bytes": 6304239
-          },
-          "mapped": {
-            "count": 0,
-            "used_in_bytes": 0,
-            "total_capacity_in_bytes": 0
-          }
-        }
-      },
-      "thread_pool": {
-        "percolate": {
-          "threads": 123,
-          "queue": 23,
-          "active": 13,
-          "rejected": 235,
-          "largest": 23,
-          "completed": 33
-        },
-        "fetch_shard_started": {
-          "threads": 3,
-          "queue": 1,
-          "active": 5,
-          "rejected": 6,
-          "largest": 4,
-          "completed": 54
-        },
-        "listener": {
-          "threads": 1,
-          "queue": 2,
-          "active": 4,
-          "rejected": 8,
-          "largest": 1,
-          "completed": 1
-        },
-        "index": {
-          "threads": 6,
-          "queue": 8,
-          "active": 4,
-          "rejected": 2,
-          "largest": 3,
-          "completed": 6
-        },
-        "refresh": {
-          "threads": 23,
-          "queue": 7,
-          "active": 3,
-          "rejected": 4,
-          "largest": 8,
-          "completed": 3
-        },
-        "suggest": {
-          "threads": 2,
-          "queue": 7,
-          "active": 2,
-          "rejected": 1,
-          "largest": 8,
-          "completed": 3
-        },
-        "generic": {
-          "threads": 1,
-          "queue": 4,
-          "active": 6,
-          "rejected": 3,
-          "largest": 2,
-          "completed": 27
-        },
-        "warmer": {
-          "threads": 2,
-          "queue": 7,
-          "active": 3,
-          "rejected": 2,
-          "largest": 3,
-          "completed": 1
-        },
-        "search": {
-          "threads": 5,
-          "queue": 7,
-          "active": 2,
-          "rejected": 7,
-          "largest": 2,
-          "completed": 4
-        },
-        "flush": {
-          "threads": 3,
-          "queue": 8,
-          "active": 0,
-          "rejected": 1,
-          "largest": 5,
-          "completed": 3
-        },
-        "optimize": {
-          "threads": 3,
-          "queue": 4,
-          "active": 1,
-          "rejected": 2,
-          "largest": 7,
-          "completed": 3
-        },
-        "fetch_shard_store": {
-          "threads": 1,
-          "queue": 7,
-          "active": 4,
-          "rejected": 2,
-          "largest": 4,
-          "completed": 1
-        },
-        "management": {
-          "threads": 2,
-          "queue": 3,
-          "active": 1,
-          "rejected": 6,
-          "largest": 2,
-          "completed": 22
-        },
-        "get": {
-          "threads": 1,
-          "queue": 8,
-          "active": 4,
-          "rejected": 3,
-          "largest": 2,
-          "completed": 1
-        },
-        "merge": {
-          "threads": 6,
-          "queue": 4,
-          "active": 5,
-          "rejected": 2,
-          "largest": 5,
-          "completed": 1
-        },
-        "bulk": {
-          "threads": 4,
-          "queue": 5,
-          "active": 7,
-          "rejected": 3,
-          "largest": 1,
-          "completed": 4
-        },
-        "snapshot": {
-          "threads": 8,
-          "queue": 5,
-          "active": 6,
-          "rejected": 2,
-          "largest": 1,
-          "completed": 0
-        }
-      },
-      "fs": {
-        "timestamp": 1436460392946,
-        "total": {
-          "total_in_bytes": 19507089408,
-          "free_in_bytes": 16909316096,
-          "available_in_bytes": 15894814720
-        },
-        "data": [
-          {
-            "path": "/usr/share/elasticsearch/data/elasticsearch/nodes/0",
-            "mount": "/usr/share/elasticsearch/data",
-            "type": "ext4",
-            "total_in_bytes": 19507089408,
-            "free_in_bytes": 16909316096,
-            "available_in_bytes": 15894814720
-          }
-        ]
-      },
-      "transport": {
-        "server_open": 13,
-        "rx_count": 6,
-        "rx_size_in_bytes": 1380,
-        "tx_count": 6,
-        "tx_size_in_bytes": 1380
-      },
-      "http": {
-        "current_open": 3,
-        "total_opened": 3
-      },
-      "breakers": {
-        "fielddata": {
-          "limit_size_in_bytes": 623326003,
-          "limit_size": "594.4mb",
-          "estimated_size_in_bytes": 0,
-          "estimated_size": "0b",
-          "overhead": 1.03,
-          "tripped": 0
-        },
-        "request": {
-          "limit_size_in_bytes": 415550668,
-          "limit_size": "396.2mb",
-          "estimated_size_in_bytes": 0,
-          "estimated_size": "0b",
-          "overhead": 1.0,
-          "tripped": 0
-        },
-        "parent": {
-          "limit_size_in_bytes": 727213670,
-          "limit_size": "693.5mb",
-          "estimated_size_in_bytes": 0,
-          "estimated_size": "0b",
-          "overhead": 1.0,
-          "tripped": 0
-        }
-      }
-    }
-  }
-}
-`
-
-var indicesExpected = map[string]float64{
-	"indices_id_cache_memory_size_in_bytes":             0,
-	"indices_completion_size_in_bytes":                  0,
-	"indices_suggest_total":                             0,
-	"indices_suggest_time_in_millis":                    0,
-	"indices_suggest_current":                           0,
-	"indices_query_cache_memory_size_in_bytes":          0,
-	"indices_query_cache_evictions":                     0,
-	"indices_query_cache_hit_count":                     0,
-	"indices_query_cache_miss_count":                    0,
-	"indices_store_size_in_bytes":                       37715234,
-	"indices_store_throttle_time_in_millis":             215,
-	"indices_merges_current_docs":                       0,
-	"indices_merges_current_size_in_bytes":              0,
-	"indices_merges_total":                              133,
-	"indices_merges_total_time_in_millis":               21060,
-	"indices_merges_total_docs":                         203672,
-	"indices_merges_total_size_in_bytes":                142900226,
-	"indices_merges_current":                            0,
-	"indices_filter_cache_memory_size_in_bytes":         7384,
-	"indices_filter_cache_evictions":                    0,
-	"indices_indexing_index_total":                      84790,
-	"indices_indexing_index_time_in_millis":             29680,
-	"indices_indexing_index_current":                    0,
-	"indices_indexing_noop_update_total":                0,
-	"indices_indexing_throttle_time_in_millis":          0,
-	"indices_indexing_delete_total":                     13879,
-	"indices_indexing_delete_time_in_millis":            1139,
-	"indices_indexing_delete_current":                   0,
-	"indices_get_exists_time_in_millis":                 0,
-	"indices_get_missing_total":                         1,
-	"indices_get_missing_time_in_millis":                2,
-	"indices_get_current":                               0,
-	"indices_get_total":                                 1,
-	"indices_get_time_in_millis":                        2,
-	"indices_get_exists_total":                          0,
-	"indices_refresh_total":                             1076,
-	"indices_refresh_total_time_in_millis":              20078,
-	"indices_percolate_current":                         0,
-	"indices_percolate_memory_size_in_bytes":            -1,
-	"indices_percolate_queries":                         0,
-	"indices_percolate_total":                           0,
-	"indices_percolate_time_in_millis":                  0,
-	"indices_translog_operations":                       17702,
-	"indices_translog_size_in_bytes":                    17,
-	"indices_recovery_current_as_source":                0,
-	"indices_recovery_current_as_target":                0,
-	"indices_recovery_throttle_time_in_millis":          0,
-	"indices_docs_count":                                29652,
-	"indices_docs_deleted":                              5229,
-	"indices_flush_total_time_in_millis":                2401,
-	"indices_flush_total":                               115,
-	"indices_fielddata_memory_size_in_bytes":            12996,
-	"indices_fielddata_evictions":                       0,
-	"indices_search_fetch_current":                      0,
-	"indices_search_open_contexts":                      0,
-	"indices_search_query_total":                        1452,
-	"indices_search_query_time_in_millis":               5695,
-	"indices_search_query_current":                      0,
-	"indices_search_fetch_total":                        414,
-	"indices_search_fetch_time_in_millis":               146,
-	"indices_warmer_current":                            0,
-	"indices_warmer_total":                              2319,
-	"indices_warmer_total_time_in_millis":               448,
-	"indices_segments_count":                            134,
-	"indices_segments_memory_in_bytes":                  1285212,
-	"indices_segments_index_writer_memory_in_bytes":     0,
-	"indices_segments_index_writer_max_memory_in_bytes": 172368955,
-	"indices_segments_version_map_memory_in_bytes":      611844,
-	"indices_segments_fixed_bit_set_memory_in_bytes":    0,
-}
-
-var osExpected = map[string]float64{
-	"os_swap_used_in_bytes":       0,
-	"os_swap_free_in_bytes":       487997440,
-	"os_timestamp":                1436460392944,
-	"os_mem_free_percent":         74,
-	"os_mem_used_percent":         25,
-	"os_mem_actual_free_in_bytes": 1565470720,
-	"os_mem_actual_used_in_bytes": 534159360,
-	"os_mem_free_in_bytes":        477761536,
-	"os_mem_used_in_bytes":        1621868544,
-}
-
-var processExpected = map[string]float64{
-	"process_mem_total_virtual_in_bytes": 4747890688,
-	"process_timestamp":                  1436460392945,
-	"process_open_file_descriptors":      160,
-	"process_cpu_total_in_millis":        15480,
-	"process_cpu_percent":                2,
-	"process_cpu_sys_in_millis":          1870,
-	"process_cpu_user_in_millis":         13610,
-}
-
-var jvmExpected = map[string]float64{
-	"jvm_timestamp":                                     1436460392945,
-	"jvm_uptime_in_millis":                              202245,
-	"jvm_mem_non_heap_used_in_bytes":                    39634576,
-	"jvm_mem_non_heap_committed_in_bytes":               40841216,
-	"jvm_mem_pools_young_max_in_bytes":                  279183360,
-	"jvm_mem_pools_young_peak_used_in_bytes":            71630848,
-	"jvm_mem_pools_young_peak_max_in_bytes":             279183360,
-	"jvm_mem_pools_young_used_in_bytes":                 32685760,
-	"jvm_mem_pools_survivor_peak_used_in_bytes":         8912888,
-	"jvm_mem_pools_survivor_peak_max_in_bytes":          34865152,
-	"jvm_mem_pools_survivor_used_in_bytes":              8912880,
-	"jvm_mem_pools_survivor_max_in_bytes":               34865152,
-	"jvm_mem_pools_old_peak_max_in_bytes":               724828160,
-	"jvm_mem_pools_old_used_in_bytes":                   11110928,
-	"jvm_mem_pools_old_max_in_bytes":                    724828160,
-	"jvm_mem_pools_old_peak_used_in_bytes":              14354608,
-	"jvm_mem_heap_used_in_bytes":                        52709568,
-	"jvm_mem_heap_used_percent":                         5,
-	"jvm_mem_heap_committed_in_bytes":                   259522560,
-	"jvm_mem_heap_max_in_bytes":                         1038876672,
-	"jvm_threads_peak_count":                            45,
-	"jvm_threads_count":                                 44,
-	"jvm_gc_collectors_young_collection_count":          2,
-	"jvm_gc_collectors_young_collection_time_in_millis": 98,
-	"jvm_gc_collectors_old_collection_count":            1,
-	"jvm_gc_collectors_old_collection_time_in_millis":   24,
-	"jvm_buffer_pools_direct_count":                     40,
-	"jvm_buffer_pools_direct_used_in_bytes":             6304239,
-	"jvm_buffer_pools_direct_total_capacity_in_bytes":   6304239,
-	"jvm_buffer_pools_mapped_count":                     0,
-	"jvm_buffer_pools_mapped_used_in_bytes":             0,
-	"jvm_buffer_pools_mapped_total_capacity_in_bytes":   0,
-}
-
-var threadPoolExpected = map[string]float64{
-	"thread_pool_merge_threads":                 6,
-	"thread_pool_merge_queue":                   4,
-	"thread_pool_merge_active":                  5,
-	"thread_pool_merge_rejected":                2,
-	"thread_pool_merge_largest":                 5,
-	"thread_pool_merge_completed":               1,
-	"thread_pool_bulk_threads":                  4,
-	"thread_pool_bulk_queue":                    5,
-	"thread_pool_bulk_active":                   7,
-	"thread_pool_bulk_rejected":                 3,
-	"thread_pool_bulk_largest":                  1,
-	"thread_pool_bulk_completed":                4,
-	"thread_pool_warmer_threads":                2,
-	"thread_pool_warmer_queue":                  7,
-	"thread_pool_warmer_active":                 3,
-	"thread_pool_warmer_rejected":               2,
-	"thread_pool_warmer_largest":                3,
-	"thread_pool_warmer_completed":              1,
-	"thread_pool_get_largest":                   2,
-	"thread_pool_get_completed":                 1,
-	"thread_pool_get_threads":                   1,
-	"thread_pool_get_queue":                     8,
-	"thread_pool_get_active":                    4,
-	"thread_pool_get_rejected":                  3,
-	"thread_pool_index_threads":                 6,
-	"thread_pool_index_queue":                   8,
-	"thread_pool_index_active":                  4,
-	"thread_pool_index_rejected":                2,
-	"thread_pool_index_largest":                 3,
-	"thread_pool_index_completed":               6,
-	"thread_pool_suggest_threads":               2,
-	"thread_pool_suggest_queue":                 7,
-	"thread_pool_suggest_active":                2,
-	"thread_pool_suggest_rejected":              1,
-	"thread_pool_suggest_largest":               8,
-	"thread_pool_suggest_completed":             3,
-	"thread_pool_fetch_shard_store_queue":       7,
-	"thread_pool_fetch_shard_store_active":      4,
-	"thread_pool_fetch_shard_store_rejected":    2,
-	"thread_pool_fetch_shard_store_largest":     4,
-	"thread_pool_fetch_shard_store_completed":   1,
-	"thread_pool_fetch_shard_store_threads":     1,
-	"thread_pool_management_threads":            2,
-	"thread_pool_management_queue":              3,
-	"thread_pool_management_active":             1,
-	"thread_pool_management_rejected":           6,
-	"thread_pool_management_largest":            2,
-	"thread_pool_management_completed":          22,
-	"thread_pool_percolate_queue":               23,
-	"thread_pool_percolate_active":              13,
-	"thread_pool_percolate_rejected":            235,
-	"thread_pool_percolate_largest":             23,
-	"thread_pool_percolate_completed":           33,
-	"thread_pool_percolate_threads":             123,
-	"thread_pool_listener_active":               4,
-	"thread_pool_listener_rejected":             8,
-	"thread_pool_listener_largest":              1,
-	"thread_pool_listener_completed":            1,
-	"thread_pool_listener_threads":              1,
-	"thread_pool_listener_queue":                2,
-	"thread_pool_search_rejected":               7,
-	"thread_pool_search_largest":                2,
-	"thread_pool_search_completed":              4,
-	"thread_pool_search_threads":                5,
-	"thread_pool_search_queue":                  7,
-	"thread_pool_search_active":                 2,
-	"thread_pool_fetch_shard_started_threads":   3,
-	"thread_pool_fetch_shard_started_queue":     1,
-	"thread_pool_fetch_shard_started_active":    5,
-	"thread_pool_fetch_shard_started_rejected":  6,
-	"thread_pool_fetch_shard_started_largest":   4,
-	"thread_pool_fetch_shard_started_completed": 54,
-	"thread_pool_refresh_rejected":              4,
-	"thread_pool_refresh_largest":               8,
-	"thread_pool_refresh_completed":             3,
-	"thread_pool_refresh_threads":               23,
-	"thread_pool_refresh_queue":                 7,
-	"thread_pool_refresh_active":                3,
-	"thread_pool_optimize_threads":              3,
-	"thread_pool_optimize_queue":                4,
-	"thread_pool_optimize_active":               1,
-	"thread_pool_optimize_rejected":             2,
-	"thread_pool_optimize_largest":              7,
-	"thread_pool_optimize_completed":            3,
-	"thread_pool_snapshot_largest":              1,
-	"thread_pool_snapshot_completed":            0,
-	"thread_pool_snapshot_threads":              8,
-	"thread_pool_snapshot_queue":                5,
-	"thread_pool_snapshot_active":               6,
-	"thread_pool_snapshot_rejected":             2,
-	"thread_pool_generic_threads":               1,
-	"thread_pool_generic_queue":                 4,
-	"thread_pool_generic_active":                6,
-	"thread_pool_generic_rejected":              3,
-	"thread_pool_generic_largest":               2,
-	"thread_pool_generic_completed":             27,
-	"thread_pool_flush_threads":                 3,
-	"thread_pool_flush_queue":                   8,
-	"thread_pool_flush_active":                  0,
-	"thread_pool_flush_rejected":                1,
-	"thread_pool_flush_largest":                 5,
-	"thread_pool_flush_completed":               3,
-}
-
-var fsExpected = map[string]float64{
-	"fs_timestamp":                1436460392946,
-	"fs_total_free_in_bytes":      16909316096,
-	"fs_total_available_in_bytes": 15894814720,
-	"fs_total_total_in_bytes":     19507089408,
-}
-
-var transportExpected = map[string]float64{
-	"transport_server_open":      13,
-	"transport_rx_count":         6,
-	"transport_rx_size_in_bytes": 1380,
-	"transport_tx_count":         6,
-	"transport_tx_size_in_bytes": 1380,
-}
-
-var httpExpected = map[string]float64{
-	"http_current_open": 3,
-	"http_total_opened": 3,
-}
-
-var breakersExpected = map[string]float64{
-	"breakers_fielddata_estimated_size_in_bytes": 0,
-	"breakers_fielddata_overhead":                1.03,
-	"breakers_fielddata_tripped":                 0,
-	"breakers_fielddata_limit_size_in_bytes":     623326003,
-	"breakers_request_estimated_size_in_bytes":   0,
-	"breakers_request_overhead":                  1.0,
-	"breakers_request_tripped":                   0,
-	"breakers_request_limit_size_in_bytes":       415550668,
-	"breakers_parent_overhead":                   1.0,
-	"breakers_parent_tripped":                    0,
-	"breakers_parent_limit_size_in_bytes":        727213670,
-	"breakers_parent_estimated_size_in_bytes":    0,
-}

plugins/exec/README.md

@@ -1,42 +0,0 @@
-# Exec Plugin
-
-The exec plugin can execute arbitrary commands which output JSON. Then it flattens JSON and finds
-all numeric values, treating them as floats.
-
-For example, if you have a json-returning command called mycollector, you could
-setup the exec plugin with:
-
-```
-[[exec.commands]]
-command = "/usr/bin/mycollector --output=json"
-name = "mycollector"
-interval = 10
-```
-
-The name is used as a prefix for the measurements.
-
-The interval is used to determine how often a particular command should be run. Each
-time the exec plugin runs, it will only run a particular command if it has been at least
-`interval` seconds since the exec plugin last ran the command.
-
-
-# Sample
-
-Let's say that we have a command named "mycollector", which gives the following output:
-```json
-{
-    "a": 0.5,
-    "b": {
-        "c": "some text",
-        "d": 0.1,
-        "e": 5
-    }
-}
-```
-
-The collected metrics will be:
-```
-exec_mycollector_a value=0.5
-exec_mycollector_b_d value=0.1
-exec_mycollector_b_e value=5
-```

plugins/exec/exec.go

@@ -1,162 +0,0 @@
-package exec
-
-import (
-	"bytes"
-	"encoding/json"
-	"errors"
-	"fmt"
-	"github.com/gonuts/go-shellquote"
-	"github.com/influxdb/telegraf/plugins"
-	"math"
-	"os/exec"
-	"strings"
-	"sync"
-	"time"
-)
-
-const sampleConfig = `
-  # specify commands via an array of tables
-  [[plugins.exec.commands]]
-  # the command to run
-  command = "/usr/bin/mycollector --foo=bar"
-
-  # name of the command (used as a prefix for measurements)
-  name = "mycollector"
-
-  # Only run this command if it has been at least this many
-  # seconds since it last ran
-  interval = 10
-`
-
-type Exec struct {
-	Commands []*Command
-	runner   Runner
-	clock    Clock
-}
-
-type Command struct {
-	Command   string
-	Name      string
-	Interval  int
-	lastRunAt time.Time
-}
-
-type Runner interface {
-	Run(*Command) ([]byte, error)
-}
-
-type Clock interface {
-	Now() time.Time
-}
-
-type CommandRunner struct{}
-
-type RealClock struct{}
-
-func (c CommandRunner) Run(command *Command) ([]byte, error) {
-	command.lastRunAt = time.Now()
-	split_cmd, err := shellquote.Split(command.Command)
-	if err != nil || len(split_cmd) == 0 {
-		return nil, fmt.Errorf("exec: unable to parse command, %s", err)
-	}
-
-	cmd := exec.Command(split_cmd[0], split_cmd[1:]...)
-	var out bytes.Buffer
-	cmd.Stdout = &out
-
-	if err := cmd.Run(); err != nil {
-		return nil, fmt.Errorf("exec: %s for command '%s'", err, command.Command)
-	}
-
-	return out.Bytes(), nil
-}
-
-func (c RealClock) Now() time.Time {
-	return time.Now()
-}
-
-func NewExec() *Exec {
-	return &Exec{runner: CommandRunner{}, clock: RealClock{}}
-}
-
-func (e *Exec) SampleConfig() string {
-	return sampleConfig
-}
-
-func (e *Exec) Description() string {
-	return "Read flattened metrics from one or more commands that output JSON to stdout"
-}
-
-func (e *Exec) Gather(acc plugins.Accumulator) error {
-	var wg sync.WaitGroup
-
-	errorChannel := make(chan error, len(e.Commands))
-
-	for _, c := range e.Commands {
-		wg.Add(1)
-		go func(c *Command, acc plugins.Accumulator) {
-			defer wg.Done()
-			err := e.gatherCommand(c, acc)
-			if err != nil {
-				errorChannel <- err
-			}
-		}(c, acc)
-	}
-
-	wg.Wait()
-	close(errorChannel)
-
-	// Get all errors and return them as one giant error
-	errorStrings := []string{}
-	for err := range errorChannel {
-		errorStrings = append(errorStrings, err.Error())
-	}
-
-	if len(errorStrings) == 0 {
-		return nil
-	}
-	return errors.New(strings.Join(errorStrings, "\n"))
-}
-
-func (e *Exec) gatherCommand(c *Command, acc plugins.Accumulator) error {
-	secondsSinceLastRun := 0.0
-
-	if c.lastRunAt.Unix() == 0 { // means time is uninitialized
-		secondsSinceLastRun = math.Inf(1)
-	} else {
-		secondsSinceLastRun = (e.clock.Now().Sub(c.lastRunAt)).Seconds()
-	}
-
-	if secondsSinceLastRun >= float64(c.Interval) {
-		out, err := e.runner.Run(c)
-		if err != nil {
-			return err
-		}
-
-		var jsonOut interface{}
-		err = json.Unmarshal(out, &jsonOut)
-		if err != nil {
-			return fmt.Errorf("exec: unable to parse output of '%s' as JSON, %s", c.Command, err)
-		}
-
-		processResponse(acc, c.Name, map[string]string{}, jsonOut)
-	}
-	return nil
-}
-
-func processResponse(acc plugins.Accumulator, prefix string, tags map[string]string, v interface{}) {
-	switch t := v.(type) {
-	case map[string]interface{}:
-		for k, v := range t {
-			processResponse(acc, prefix+"_"+k, tags, v)
-		}
-	case float64:
-		acc.Add(prefix, v, tags)
-	}
-}
-
-func init() {
-	plugins.Add("exec", func() plugins.Plugin {
-		return NewExec()
-	})
-}

plugins/exec/exec_test.go

@@ -1,262 +0,0 @@
-package exec
-
-import (
-	"fmt"
-	"github.com/influxdb/telegraf/testutil"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	"math"
-	"testing"
-	"time"
-)
-
-// Midnight 9/22/2015
-const baseTimeSeconds = 1442905200
-
-const validJson = `
-{
-    "status": "green",
-    "num_processes": 82,
-    "cpu": {
-        "status": "red",
-        "nil_status": null,
-        "used": 8234,
-        "free": 32
-    },
-    "percent": 0.81,
-    "users": [0, 1, 2, 3]
-}`
-
-const malformedJson = `
-{
-    "status": "green",
-`
-
-type runnerMock struct {
-	out []byte
-	err error
-}
-
-type clockMock struct {
-	now time.Time
-}
-
-func newRunnerMock(out []byte, err error) Runner {
-	return &runnerMock{
-		out: out,
-		err: err,
-	}
-}
-
-func (r runnerMock) Run(command *Command) ([]byte, error) {
-	if r.err != nil {
-		return nil, r.err
-	}
-	return r.out, nil
-}
-
-func newClockMock(now time.Time) Clock {
-	return &clockMock{now: now}
-}
-
-func (c clockMock) Now() time.Time {
-	return c.now
-}
-
-func TestExec(t *testing.T) {
-	runner := newRunnerMock([]byte(validJson), nil)
-	clock := newClockMock(time.Unix(baseTimeSeconds+20, 0))
-	command := Command{
-		Command:   "testcommand arg1",
-		Name:      "mycollector",
-		Interval:  10,
-		lastRunAt: time.Unix(baseTimeSeconds, 0),
-	}
-
-	e := &Exec{
-		runner:   runner,
-		clock:    clock,
-		Commands: []*Command{&command},
-	}
-
-	var acc testutil.Accumulator
-	initialPoints := len(acc.Points)
-	err := e.Gather(&acc)
-	deltaPoints := len(acc.Points) - initialPoints
-	require.NoError(t, err)
-
-	checkFloat := []struct {
-		name  string
-		value float64
-	}{
-		{"mycollector_num_processes", 82},
-		{"mycollector_cpu_used", 8234},
-		{"mycollector_cpu_free", 32},
-		{"mycollector_percent", 0.81},
-	}
-
-	for _, c := range checkFloat {
-		assert.True(t, acc.CheckValue(c.name, c.value))
-	}
-
-	assert.Equal(t, deltaPoints, 4, "non-numeric measurements should be ignored")
-}
-
-func TestExecMalformed(t *testing.T) {
-	runner := newRunnerMock([]byte(malformedJson), nil)
-	clock := newClockMock(time.Unix(baseTimeSeconds+20, 0))
-	command := Command{
-		Command:   "badcommand arg1",
-		Name:      "mycollector",
-		Interval:  10,
-		lastRunAt: time.Unix(baseTimeSeconds, 0),
-	}
-
-	e := &Exec{
-		runner:   runner,
-		clock:    clock,
-		Commands: []*Command{&command},
-	}
-
-	var acc testutil.Accumulator
-	initialPoints := len(acc.Points)
-	err := e.Gather(&acc)
-	deltaPoints := len(acc.Points) - initialPoints
-	require.Error(t, err)
-
-	assert.Equal(t, deltaPoints, 0, "No new points should have been added")
-}
-
-func TestCommandError(t *testing.T) {
-	runner := newRunnerMock(nil, fmt.Errorf("exit status code 1"))
-	clock := newClockMock(time.Unix(baseTimeSeconds+20, 0))
-	command := Command{
-		Command:   "badcommand",
-		Name:      "mycollector",
-		Interval:  10,
-		lastRunAt: time.Unix(baseTimeSeconds, 0),
-	}
-
-	e := &Exec{
-		runner:   runner,
-		clock:    clock,
-		Commands: []*Command{&command},
-	}
-
-	var acc testutil.Accumulator
-	initialPoints := len(acc.Points)
-	err := e.Gather(&acc)
-	deltaPoints := len(acc.Points) - initialPoints
-	require.Error(t, err)
-
-	assert.Equal(t, deltaPoints, 0, "No new points should have been added")
-}
-
-func TestExecNotEnoughTime(t *testing.T) {
-	runner := newRunnerMock([]byte(validJson), nil)
-	clock := newClockMock(time.Unix(baseTimeSeconds+5, 0))
-	command := Command{
-		Command:   "testcommand arg1",
-		Name:      "mycollector",
-		Interval:  10,
-		lastRunAt: time.Unix(baseTimeSeconds, 0),
-	}
-
-	e := &Exec{
-		runner:   runner,
-		clock:    clock,
-		Commands: []*Command{&command},
-	}
-
-	var acc testutil.Accumulator
-	initialPoints := len(acc.Points)
-	err := e.Gather(&acc)
-	deltaPoints := len(acc.Points) - initialPoints
-	require.NoError(t, err)
-
-	assert.Equal(t, deltaPoints, 0, "No new points should have been added")
-}
-
-func TestExecUninitializedLastRunAt(t *testing.T) {
-	runner := newRunnerMock([]byte(validJson), nil)
-	clock := newClockMock(time.Unix(baseTimeSeconds, 0))
-	command := Command{
-		Command:  "testcommand arg1",
-		Name:     "mycollector",
-		Interval: math.MaxInt32,
-		// Uninitialized lastRunAt should default to time.Unix(0, 0), so this should
-		// run no matter what the interval is
-	}
-
-	e := &Exec{
-		runner:   runner,
-		clock:    clock,
-		Commands: []*Command{&command},
-	}
-
-	var acc testutil.Accumulator
-	initialPoints := len(acc.Points)
-	err := e.Gather(&acc)
-	deltaPoints := len(acc.Points) - initialPoints
-	require.NoError(t, err)
-
-	checkFloat := []struct {
-		name  string
-		value float64
-	}{
-		{"mycollector_num_processes", 82},
-		{"mycollector_cpu_used", 8234},
-		{"mycollector_cpu_free", 32},
-		{"mycollector_percent", 0.81},
-	}
-
-	for _, c := range checkFloat {
-		assert.True(t, acc.CheckValue(c.name, c.value))
-	}
-
-	assert.Equal(t, deltaPoints, 4, "non-numeric measurements should be ignored")
-}
-func TestExecOneNotEnoughTimeAndOneEnoughTime(t *testing.T) {
-	runner := newRunnerMock([]byte(validJson), nil)
-	clock := newClockMock(time.Unix(baseTimeSeconds+5, 0))
-	notEnoughTimeCommand := Command{
-		Command:   "testcommand arg1",
-		Name:      "mycollector",
-		Interval:  10,
-		lastRunAt: time.Unix(baseTimeSeconds, 0),
-	}
-	enoughTimeCommand := Command{
-		Command:   "testcommand arg1",
-		Name:      "mycollector",
-		Interval:  3,
-		lastRunAt: time.Unix(baseTimeSeconds, 0),
-	}
-
-	e := &Exec{
-		runner:   runner,
-		clock:    clock,
-		Commands: []*Command{&notEnoughTimeCommand, &enoughTimeCommand},
-	}
-
-	var acc testutil.Accumulator
-	initialPoints := len(acc.Points)
-	err := e.Gather(&acc)
-	deltaPoints := len(acc.Points) - initialPoints
-	require.NoError(t, err)
-
-	checkFloat := []struct {
-		name  string
-		value float64
-	}{
-		{"mycollector_num_processes", 82},
-		{"mycollector_cpu_used", 8234},
-		{"mycollector_cpu_free", 32},
-		{"mycollector_percent", 0.81},
-	}
-
-	for _, c := range checkFloat {
-		assert.True(t, acc.CheckValue(c.name, c.value))
-	}
-
-	assert.Equal(t, deltaPoints, 4, "Only one command should have been run")
-}

plugins/httpjson/httpjson.go

@@ -1,233 +0,0 @@
-package httpjson
-
-import (
-	"encoding/json"
-	"errors"
-	"fmt"
-	"io/ioutil"
-	"net/http"
-	"net/url"
-	"strings"
-	"sync"
-
-	"github.com/influxdb/telegraf/plugins"
-)
-
-type HttpJson struct {
-	Services []Service
-	client   HTTPClient
-}
-
-type Service struct {
-	Name       string
-	Servers    []string
-	Method     string
-	TagKeys    []string
-	Parameters map[string]string
-}
-
-type HTTPClient interface {
-	// Returns the result of an http request
-	//
-	// Parameters:
-	// req: HTTP request object
-	//
-	// Returns:
-	// http.Response:  HTTP respons object
-	// error        :  Any error that may have occurred
-	MakeRequest(req *http.Request) (*http.Response, error)
-}
-
-type RealHTTPClient struct {
-	client *http.Client
-}
-
-func (c RealHTTPClient) MakeRequest(req *http.Request) (*http.Response, error) {
-	return c.client.Do(req)
-}
-
-var sampleConfig = `
-  # Specify services via an array of tables
-  [[plugins.httpjson.services]]
-
-    # a name for the service being polled
-    name = "webserver_stats"
-
-    # URL of each server in the service's cluster
-    servers = [
-      "http://localhost:9999/stats/",
-      "http://localhost:9998/stats/",
-    ]
-
-    # HTTP method to use (case-sensitive)
-    method = "GET"
-
-    # List of tag names to extract from top-level of JSON server response
-    # tag_keys = [
-    #   "my_tag_1",
-    #   "my_tag_2"
-    # ]
-
-    # HTTP parameters (all values must be strings)
-    [plugins.httpjson.services.parameters]
-      event_type = "cpu_spike"
-      threshold = "0.75"
-`
-
-func (h *HttpJson) SampleConfig() string {
-	return sampleConfig
-}
-
-func (h *HttpJson) Description() string {
-	return "Read flattened metrics from one or more JSON HTTP endpoints"
-}
-
-// Gathers data for all servers.
-func (h *HttpJson) Gather(acc plugins.Accumulator) error {
-	var wg sync.WaitGroup
-
-	totalServers := 0
-	for _, service := range h.Services {
-		totalServers += len(service.Servers)
-	}
-	errorChannel := make(chan error, totalServers)
-
-	for _, service := range h.Services {
-		for _, server := range service.Servers {
-			wg.Add(1)
-			go func(service Service, server string) {
-				defer wg.Done()
-				if err := h.gatherServer(acc, service, server); err != nil {
-					errorChannel <- err
-				}
-			}(service, server)
-		}
-	}
-
-	wg.Wait()
-	close(errorChannel)
-
-	// Get all errors and return them as one giant error
-	errorStrings := []string{}
-	for err := range errorChannel {
-		errorStrings = append(errorStrings, err.Error())
-	}
-
-	if len(errorStrings) == 0 {
-		return nil
-	}
-	return errors.New(strings.Join(errorStrings, "\n"))
-}
-
-// Gathers data from a particular server
-// Parameters:
-//     acc      : The telegraf Accumulator to use
-//     serverURL: endpoint to send request to
-//     service  : the service being queried
-//
-// Returns:
-//     error: Any error that may have occurred
-func (h *HttpJson) gatherServer(
-	acc plugins.Accumulator,
-	service Service,
-	serverURL string,
-) error {
-	resp, err := h.sendRequest(service, serverURL)
-	if err != nil {
-		return err
-	}
-
-	var jsonOut map[string]interface{}
-	if err = json.Unmarshal([]byte(resp), &jsonOut); err != nil {
-		return errors.New("Error decoding JSON response")
-	}
-
-	tags := map[string]string{
-		"server": serverURL,
-	}
-
-	for _, tag := range service.TagKeys {
-		switch v := jsonOut[tag].(type) {
-		case string:
-			tags[tag] = v
-		}
-		delete(jsonOut, tag)
-	}
-
-	processResponse(acc, service.Name, tags, jsonOut)
-	return nil
-}
-
-// Sends an HTTP request to the server using the HttpJson object's HTTPClient
-// Parameters:
-//     serverURL: endpoint to send request to
-//
-// Returns:
-//     string: body of the response
-//     error : Any error that may have occurred
-func (h *HttpJson) sendRequest(service Service, serverURL string) (string, error) {
-	// Prepare URL
-	requestURL, err := url.Parse(serverURL)
-	if err != nil {
-		return "", fmt.Errorf("Invalid server URL \"%s\"", serverURL)
-	}
-
-	params := url.Values{}
-	for k, v := range service.Parameters {
-		params.Add(k, v)
-	}
-	requestURL.RawQuery = params.Encode()
-
-	// Create + send request
-	req, err := http.NewRequest(service.Method, requestURL.String(), nil)
-	if err != nil {
-		return "", err
-	}
-
-	resp, err := h.client.MakeRequest(req)
-	if err != nil {
-		return "", err
-	}
-
-	defer resp.Body.Close()
-	body, err := ioutil.ReadAll(resp.Body)
-	if err != nil {
-		return string(body), err
-	}
-
-	// Process response
-	if resp.StatusCode != http.StatusOK {
-		err = fmt.Errorf("Response from url \"%s\" has status code %d (%s), expected %d (%s)",
-			requestURL.String(),
-			resp.StatusCode,
-			http.StatusText(resp.StatusCode),
-			http.StatusOK,
-			http.StatusText(http.StatusOK))
-		return string(body), err
-	}
-
-	return string(body), err
-}
-
-// Flattens the map generated from the JSON object and stores its float values using a
-// plugins.Accumulator. It ignores any non-float values.
-// Parameters:
-//     acc: the Accumulator to use
-//     prefix: What the name of the measurement name should be prefixed by.
-//     tags: telegraf tags to
-func processResponse(acc plugins.Accumulator, prefix string, tags map[string]string, v interface{}) {
-	switch t := v.(type) {
-	case map[string]interface{}:
-		for k, v := range t {
-			processResponse(acc, prefix+"_"+k, tags, v)
-		}
-	case float64:
-		acc.Add(prefix, v, tags)
-	}
-}
-
-func init() {
-	plugins.Add("httpjson", func() plugins.Plugin {
-		return &HttpJson{client: RealHTTPClient{client: &http.Client{}}}
-	})
-}

plugins/httpjson/httpjson_test.go

@@ -1,223 +0,0 @@
-package httpjson
-
-import (
-	"fmt"
-	"io/ioutil"
-	"net/http"
-	"strings"
-	"testing"
-
-	"github.com/influxdb/telegraf/testutil"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-)
-
-const validJSON = `
-	{
-		"parent": {
-			"child": 3,
-			"ignored_child": "hi"
-		},
-		"ignored_null": null,
-		"integer": 4,
-		"ignored_list": [3, 4],
-		"ignored_parent": {
-			"another_ignored_list": [4],
-			"another_ignored_null": null,
-			"ignored_string": "hello, world!"
-		}
-	}`
-
-const validJSONTags = `
-	{
-		"value": 15,
-		"role": "master",
-		"build": "123"
-	}`
-
-const invalidJSON = "I don't think this is JSON"
-
-const empty = ""
-
-type mockHTTPClient struct {
-	responseBody string
-	statusCode   int
-}
-
-// Mock implementation of MakeRequest. Usually returns an http.Response with
-// hard-coded responseBody and statusCode. However, if the request uses a
-// nonstandard method, it uses status code 405 (method not allowed)
-func (c mockHTTPClient) MakeRequest(req *http.Request) (*http.Response, error) {
-	resp := http.Response{}
-	resp.StatusCode = c.statusCode
-
-	// basic error checking on request method
-	allowedMethods := []string{"GET", "HEAD", "POST", "PUT", "DELETE", "TRACE", "CONNECT"}
-	methodValid := false
-	for _, method := range allowedMethods {
-		if req.Method == method {
-			methodValid = true
-			break
-		}
-	}
-
-	if !methodValid {
-		resp.StatusCode = 405 // Method not allowed
-	}
-
-	resp.Body = ioutil.NopCloser(strings.NewReader(c.responseBody))
-	return &resp, nil
-}
-
-// Generates a pointer to an HttpJson object that uses a mock HTTP client.
-// Parameters:
-//     response  : Body of the response that the mock HTTP client should return
-//     statusCode: HTTP status code the mock HTTP client should return
-//
-// Returns:
-//     *HttpJson: Pointer to an HttpJson object that uses the generated mock HTTP client
-func genMockHttpJson(response string, statusCode int) *HttpJson {
-	return &HttpJson{
-		client: mockHTTPClient{responseBody: response, statusCode: statusCode},
-		Services: []Service{
-			Service{
-				Servers: []string{
-					"http://server1.example.com/metrics/",
-					"http://server2.example.com/metrics/",
-				},
-				Name:   "my_webapp",
-				Method: "GET",
-				Parameters: map[string]string{
-					"httpParam1": "12",
-					"httpParam2": "the second parameter",
-				},
-			},
-			Service{
-				Servers: []string{
-					"http://server3.example.com/metrics/",
-					"http://server4.example.com/metrics/",
-				},
-				Name:   "other_webapp",
-				Method: "POST",
-				Parameters: map[string]string{
-					"httpParam1": "12",
-					"httpParam2": "the second parameter",
-				},
-				TagKeys: []string{
-					"role",
-					"build",
-				},
-			},
-		},
-	}
-}
-
-// Test that the proper values are ignored or collected
-func TestHttpJson200(t *testing.T) {
-	httpjson := genMockHttpJson(validJSON, 200)
-
-	var acc testutil.Accumulator
-	err := httpjson.Gather(&acc)
-	require.NoError(t, err)
-
-	assert.Equal(t, 8, len(acc.Points))
-
-	for _, service := range httpjson.Services {
-		for _, srv := range service.Servers {
-			require.NoError(t,
-				acc.ValidateTaggedValue(
-					fmt.Sprintf("%s_parent_child", service.Name),
-					3.0,
-					map[string]string{"server": srv},
-				),
-			)
-			require.NoError(t,
-				acc.ValidateTaggedValue(
-					fmt.Sprintf("%s_integer", service.Name),
-					4.0,
-					map[string]string{"server": srv},
-				),
-			)
-		}
-	}
-}
-
-// Test response to HTTP 500
-func TestHttpJson500(t *testing.T) {
-	httpjson := genMockHttpJson(validJSON, 500)
-
-	var acc testutil.Accumulator
-	err := httpjson.Gather(&acc)
-
-	assert.NotNil(t, err)
-	// 4 error lines for (2 urls) * (2 services)
-	assert.Equal(t, len(strings.Split(err.Error(), "\n")), 4)
-	assert.Equal(t, 0, len(acc.Points))
-}
-
-// Test response to HTTP 405
-func TestHttpJsonBadMethod(t *testing.T) {
-	httpjson := genMockHttpJson(validJSON, 200)
-	httpjson.Services[0].Method = "NOT_A_REAL_METHOD"
-
-	var acc testutil.Accumulator
-	err := httpjson.Gather(&acc)
-
-	assert.NotNil(t, err)
-	// 2 error lines for (2 urls) * (1 falied service)
-	assert.Equal(t, len(strings.Split(err.Error(), "\n")), 2)
-
-	// (2 measurements) * (2 servers) * (1 successful service)
-	assert.Equal(t, 4, len(acc.Points))
-}
-
-// Test response to malformed JSON
-func TestHttpJsonBadJson(t *testing.T) {
-	httpjson := genMockHttpJson(invalidJSON, 200)
-
-	var acc testutil.Accumulator
-	err := httpjson.Gather(&acc)
-
-	assert.NotNil(t, err)
-	// 4 error lines for (2 urls) * (2 services)
-	assert.Equal(t, len(strings.Split(err.Error(), "\n")), 4)
-	assert.Equal(t, 0, len(acc.Points))
-}
-
-// Test response to empty string as response objectgT
-func TestHttpJsonEmptyResponse(t *testing.T) {
-	httpjson := genMockHttpJson(empty, 200)
-
-	var acc testutil.Accumulator
-	err := httpjson.Gather(&acc)
-
-	assert.NotNil(t, err)
-	// 4 error lines for (2 urls) * (2 services)
-	assert.Equal(t, len(strings.Split(err.Error(), "\n")), 4)
-	assert.Equal(t, 0, len(acc.Points))
-}
-
-// Test that the proper values are ignored or collected
-func TestHttpJson200Tags(t *testing.T) {
-	httpjson := genMockHttpJson(validJSONTags, 200)
-
-	var acc testutil.Accumulator
-	err := httpjson.Gather(&acc)
-	require.NoError(t, err)
-
-	assert.Equal(t, 4, len(acc.Points))
-
-	for _, service := range httpjson.Services {
-		if service.Name == "other_webapp" {
-			for _, srv := range service.Servers {
-				require.NoError(t,
-					acc.ValidateTaggedValue(
-						fmt.Sprintf("%s_value", service.Name),
-						15.0,
-						map[string]string{"server": srv, "role": "master", "build": "123"},
-					),
-				)
-			}
-		}
-	}
-}

plugins/influxdb/README.md

@@ -1,72 +0,0 @@
-# influxdb plugin
-
-The influxdb plugin collects InfluxDB-formatted data from JSON endpoints.
-
-With a configuration of:
-
-```toml
-[[plugins.influxdb]]
-  urls = [
-    "http://127.0.0.1:8086/debug/vars",
-    "http://192.168.2.1:8086/debug/vars"
-  ]
-```
-
-And if 127.0.0.1 responds with this JSON:
-
-```json
-{
-  "k1": {
-    "name": "fruit",
-    "tags": {
-      "kind": "apple"
-    },
-    "values": {
-      "inventory": 371,
-      "sold": 112
-    }
-  },
-  "k2": {
-    "name": "fruit",
-    "tags": {
-      "kind": "banana"
-    },
-    "values": {
-      "inventory": 1000,
-      "sold": 403
-    }
-  }
-}
-```
-
-And if 192.168.2.1 responds like so:
-
-```json
-{
-  "k3": {
-    "name": "transactions",
-    "tags": {},
-    "values": {
-      "total": 100,
-      "balance": 184.75
-    }
-  }
-}
-```
-
-Then the collected metrics will be:
-
-```
-influxdb_fruit,url='http://127.0.0.1:8086/debug/vars',kind='apple' inventory=371.0,sold=112.0
-influxdb_fruit,url='http://127.0.0.1:8086/debug/vars',kind='banana' inventory=1000.0,sold=403.0
-
-influxdb_transactions,url='http://192.168.2.1:8086/debug/vars' total=100.0,balance=184.75
-```
-
-There are two important details to note about the collected metrics:
-
-1. Even though the values in JSON are being displayed as integers, the metrics are reported as floats.
-JSON encoders usually don't print the fractional part for round floats.
-Because you cannot change the type of an existing field in InfluxDB, we assume all numbers are floats.
-
-2. The top-level keys' names (in the example above, `"k1"`, `"k2"`, and `"k3"`) are not considered when recording the metrics.

plugins/influxdb/influxdb.go

@@ -1,146 +0,0 @@
-package influxdb
-
-import (
-	"encoding/json"
-	"errors"
-	"fmt"
-	"net/http"
-	"strings"
-	"sync"
-
-	"github.com/influxdb/telegraf/plugins"
-)
-
-type InfluxDB struct {
-	URLs []string `toml:"urls"`
-}
-
-func (*InfluxDB) Description() string {
-	return "Read InfluxDB-formatted JSON metrics from one or more HTTP endpoints"
-}
-
-func (*InfluxDB) SampleConfig() string {
-	return `
-  # Works with InfluxDB debug endpoints out of the box,
-  # but other services can use this format too.
-  # See the influxdb plugin's README for more details.
-
-  # Multiple URLs from which to read InfluxDB-formatted JSON
-  urls = [
-    "http://localhost:8086/debug/vars"
-  ]
-`
-}
-
-func (i *InfluxDB) Gather(acc plugins.Accumulator) error {
-	errorChannel := make(chan error, len(i.URLs))
-
-	var wg sync.WaitGroup
-	for _, u := range i.URLs {
-		wg.Add(1)
-		go func(url string) {
-			defer wg.Done()
-			if err := i.gatherURL(acc, url); err != nil {
-				errorChannel <- fmt.Errorf("[url=%s]: %s", url, err)
-			}
-		}(u)
-	}
-
-	wg.Wait()
-	close(errorChannel)
-
-	// If there weren't any errors, we can return nil now.
-	if len(errorChannel) == 0 {
-		return nil
-	}
-
-	// There were errors, so join them all together as one big error.
-	errorStrings := make([]string, 0, len(errorChannel))
-	for err := range errorChannel {
-		errorStrings = append(errorStrings, err.Error())
-	}
-
-	return errors.New(strings.Join(errorStrings, "\n"))
-}
-
-type point struct {
-	Name   string                 `json:"name"`
-	Tags   map[string]string      `json:"tags"`
-	Values map[string]interface{} `json:"values"`
-}
-
-// Gathers data from a particular URL
-// Parameters:
-//     acc    : The telegraf Accumulator to use
-//     url    : endpoint to send request to
-//
-// Returns:
-//     error: Any error that may have occurred
-func (i *InfluxDB) gatherURL(
-	acc plugins.Accumulator,
-	url string,
-) error {
-	resp, err := http.Get(url)
-	if err != nil {
-		return err
-	}
-	defer resp.Body.Close()
-
-	// It would be nice to be able to decode into a map[string]point, but
-	// we'll get a decoder error like:
-	// `json: cannot unmarshal array into Go value of type influxdb.point`
-	// if any of the values aren't objects.
-	// To avoid that error, we decode by hand.
-	dec := json.NewDecoder(resp.Body)
-
-	// Parse beginning of object
-	if t, err := dec.Token(); err != nil {
-		return err
-	} else if t != json.Delim('{') {
-		return errors.New("document root must be a JSON object")
-	}
-
-	// Loop through rest of object
-	for {
-		// Nothing left in this object, we're done
-		if !dec.More() {
-			break
-		}
-
-		// Read in a string key. We don't do anything with the top-level keys, so it's discarded.
-		_, err := dec.Token()
-		if err != nil {
-			return err
-		}
-
-		// Attempt to parse a whole object into a point.
-		// It might be a non-object, like a string or array.
-		// If we fail to decode it into a point, ignore it and move on.
-		var p point
-		if err := dec.Decode(&p); err != nil {
-			continue
-		}
-
-		// If the object was a point, but was not fully initialized, ignore it and move on.
-		if p.Name == "" || p.Tags == nil || p.Values == nil || len(p.Values) == 0 {
-			continue
-		}
-
-		// Add a tag to indicate the source of the data.
-		p.Tags["url"] = url
-
-		acc.AddFields(
-			p.Name,
-			p.Values,
-			p.Tags,
-		)
-	}
-
-	return nil
-}
-
-func init() {
-	plugins.Add("influxdb", func() plugins.Plugin {
-		return &InfluxDB{}
-	})
-}

plugins/influxdb/influxdb_test.go

@@ -1,100 +0,0 @@
-package influxdb_test
-
-import (
-	"net/http"
-	"net/http/httptest"
-	"testing"
-
-	"github.com/influxdb/telegraf/plugins/influxdb"
-	"github.com/influxdb/telegraf/testutil"
-	"github.com/stretchr/testify/require"
-)
-
-func TestBasic(t *testing.T) {
-	js := `
-{
-  "_1": {
-    "name": "foo",
-    "tags": {
-      "id": "ex1"
-    },
-    "values": {
-      "i": -1,
-      "f": 0.5,
-      "b": true,
-      "s": "string"
-    }
-  },
-  "ignored": {
-    "willBeRecorded": false
-  },
-  "ignoredAndNested": {
-    "hash": {
-      "is": "nested"
-    }
-  },
-  "array": [
-   "makes parsing more difficult than necessary"
-  ],
-  "string": "makes parsing more difficult than necessary",
-  "_2": {
-    "name": "bar",
-    "tags": {
-      "id": "ex2"
-    },
-    "values": {
-      "x": "x"
-    }
-  },
-  "pointWithoutFields_willNotBeIncluded": {
-    "name": "asdf",
-    "tags": {
-      "id": "ex3"
-    },
-    "values": {}
-  }
-}
-`
-	fakeServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		if r.URL.Path == "/endpoint" {
-			_, _ = w.Write([]byte(js))
-		} else {
-			w.WriteHeader(http.StatusNotFound)
-		}
-	}))
-	defer fakeServer.Close()
-
-	plugin := &influxdb.InfluxDB{
-		URLs: []string{fakeServer.URL + "/endpoint"},
-	}
-
-	var acc testutil.Accumulator
-	require.NoError(t, plugin.Gather(&acc))
-
-	require.Len(t, acc.Points, 2)
-	require.NoError(t, acc.ValidateTaggedFieldsValue(
-		"foo",
-		map[string]interface{}{
-			// JSON will truncate floats to integer representations.
-			// Since there's no distinction in JSON, we can't assume it's an int.
-			"i": -1.0,
-			"f": 0.5,
-			"b": true,
-			"s": "string",
-		},
-		map[string]string{
-			"id":  "ex1",
-			"url": fakeServer.URL + "/endpoint",
-		},
-	))
-	require.NoError(t, acc.ValidateTaggedFieldsValue(
-		"bar",
-		map[string]interface{}{
-			"x": "x",
-		},
-		map[string]string{
-			"id":  "ex2",
-			"url": fakeServer.URL + "/endpoint",
-		},
-	))
-}

plugins/inputs/EXAMPLE_README.md

@@ -0,0 +1,37 @@
+# Example Input Plugin
+
+The example plugin gathers metrics about example things
+
+### Configuration:
+
+```toml
+# Description
+[[inputs.example]]
+  # SampleConfig
+```
+
+### Measurements & Fields:
+
+<optional description>
+
+- measurement1
+    - field1 (type, unit)
+    - field2 (float, percent)
+- measurement2
+    - field3 (integer, bytes)
+
+### Tags:
+
+- All measurements have the following tags:
+    - tag1 (optional description)
+    - tag2
+- measurement2 has the following tags:
+    - tag3
+
+### Example Output:
+
+```
+$ ./telegraf -config telegraf.conf -input-filter example -test
+measurement1,tag1=foo,tag2=bar field1=1i,field2=2.1 1453831884664956455
+measurement2,tag1=foo,tag2=bar,tag3=baz field3=1i 1453831884664956455
+```

plugins/inputs/aerospike/aerospike.go

@@ -4,7 +4,8 @@ import (
 	"bytes"
 	"encoding/binary"
 	"fmt"
-	"github.com/influxdb/telegraf/plugins"
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/plugins/inputs"
 	"net"
 	"strconv"
 	"strings"
@@ -103,11 +104,9 @@ type Aerospike struct {
 }
 
 var sampleConfig = `
-  # Aerospike servers to connect to (with port)
+  ## Aerospike servers to connect to (with port)
-  # Default: servers = ["localhost:3000"]
+  ## This plugin will query all namespaces the aerospike
-  #
+  ## server has configured and get stats for them.
-  # This plugin will query all namespaces the aerospike
-  # server has configured and get stats for them.
   servers = ["localhost:3000"]
  `
 
@@ -119,7 +118,7 @@ func (a *Aerospike) Description() string {
 	return "Read stats from an aerospike server"
 }
 
-func (a *Aerospike) Gather(acc plugins.Accumulator) error {
+func (a *Aerospike) Gather(acc telegraf.Accumulator) error {
 	if len(a.Servers) == 0 {
 		return a.gatherServer("127.0.0.1:3000", acc)
 	}
@@ -140,7 +139,7 @@ func (a *Aerospike) Gather(acc plugins.Accumulator) error {
 	return outerr
 }
 
-func (a *Aerospike) gatherServer(host string, acc plugins.Accumulator) error {
+func (a *Aerospike) gatherServer(host string, acc telegraf.Accumulator) error {
 	aerospikeInfo, err := getMap(STATISTICS_COMMAND, host)
 	if err != nil {
 		return fmt.Errorf("Aerospike info failed: %s", err)
@@ -247,26 +246,32 @@ func get(key []byte, host string) (map[string]string, error) {
 	return data, err
 }
 
-func readAerospikeStats(stats map[string]string, acc plugins.Accumulator, host, namespace string) {
+func readAerospikeStats(
+	stats map[string]string,
+	acc telegraf.Accumulator,
+	host string,
+	namespace string,
+) {
+	fields := make(map[string]interface{})
+	tags := map[string]string{
+		"aerospike_host": host,
+		"namespace":      "_service",
+	}
+
+	if namespace != "" {
+		tags["namespace"] = namespace
+	}
 	for key, value := range stats {
-		tags := map[string]string{
-			"aerospike_host": host,
-			"namespace":      "_service",
-		}
-
-		if namespace != "" {
-			tags["namespace"] = namespace
-		}
-
 		// We are going to ignore all string based keys
 		val, err := strconv.ParseInt(value, 10, 64)
 		if err == nil {
 			if strings.Contains(key, "-") {
 				key = strings.Replace(key, "-", "_", -1)
 			}
-			acc.Add(key, val, tags)
+			fields[key] = val
 		}
 	}
+	acc.AddFields("aerospike", fields, tags)
 }
 
 func unmarshalMapInfo(infoMap map[string]string, key string) (map[string]string, error) {
@@ -330,7 +335,7 @@ func msgLenFromBytes(buf [6]byte) int64 {
 }
 
 func init() {
-	plugins.Add("aerospike", func() plugins.Plugin {
+	inputs.Add("aerospike", func() telegraf.Input {
 		return &Aerospike{}
 	})
 }

plugins/inputs/aerospike/aerospike_test.go

@@ -1,11 +1,12 @@
 package aerospike
 
 import (
-	"github.com/influxdb/telegraf/testutil"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
 	"reflect"
 	"testing"
+
+	"github.com/influxdata/telegraf/testutil"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 )
 
 func TestAerospikeStatistics(t *testing.T) {
@@ -31,7 +32,7 @@ func TestAerospikeStatistics(t *testing.T) {
 	}
 
 	for _, metric := range asMetrics {
-		assert.True(t, acc.HasIntValue(metric), metric)
+		assert.True(t, acc.HasIntField("aerospike", metric), metric)
 	}
 
 }
@@ -49,13 +50,16 @@ func TestReadAerospikeStatsNoNamespace(t *testing.T) {
 		"stat_read_reqs":  "12345",
 	}
 	readAerospikeStats(stats, &acc, "host1", "")
-	for k := range stats {
+
-		if k == "stat-write-errs" {
+	fields := map[string]interface{}{
-			k = "stat_write_errs"
+		"stat_write_errs": int64(12345),
-		}
+		"stat_read_reqs":  int64(12345),
-		assert.True(t, acc.HasMeasurement(k))
-		assert.True(t, acc.CheckValue(k, int64(12345)))
 	}
+	tags := map[string]string{
+		"aerospike_host": "host1",
+		"namespace":      "_service",
+	}
+	acc.AssertContainsTaggedFields(t, "aerospike", fields, tags)
 }
 
 func TestReadAerospikeStatsNamespace(t *testing.T) {
@@ -66,13 +70,15 @@ func TestReadAerospikeStatsNamespace(t *testing.T) {
 	}
 	readAerospikeStats(stats, &acc, "host1", "test")
 
+	fields := map[string]interface{}{
+		"stat_write_errs": int64(12345),
+		"stat_read_reqs":  int64(12345),
+	}
 	tags := map[string]string{
 		"aerospike_host": "host1",
 		"namespace":      "test",
 	}
-	for k := range stats {
+	acc.AssertContainsTaggedFields(t, "aerospike", fields, tags)
-		assert.True(t, acc.ValidateTaggedValue(k, int64(12345), tags) == nil)
-	}
 }
 
 func TestAerospikeUnmarshalList(t *testing.T) {

plugins/inputs/all/all.go

@@ -0,0 +1,75 @@
+package all
+
+import (
+	_ "github.com/influxdata/telegraf/plugins/inputs/aerospike"
+	_ "github.com/influxdata/telegraf/plugins/inputs/apache"
+	_ "github.com/influxdata/telegraf/plugins/inputs/bcache"
+	_ "github.com/influxdata/telegraf/plugins/inputs/cassandra"
+	_ "github.com/influxdata/telegraf/plugins/inputs/ceph"
+	_ "github.com/influxdata/telegraf/plugins/inputs/chrony"
+	_ "github.com/influxdata/telegraf/plugins/inputs/cloudwatch"
+	_ "github.com/influxdata/telegraf/plugins/inputs/conntrack"
+	_ "github.com/influxdata/telegraf/plugins/inputs/consul"
+	_ "github.com/influxdata/telegraf/plugins/inputs/couchbase"
+	_ "github.com/influxdata/telegraf/plugins/inputs/couchdb"
+	_ "github.com/influxdata/telegraf/plugins/inputs/disque"
+	_ "github.com/influxdata/telegraf/plugins/inputs/dns_query"
+	_ "github.com/influxdata/telegraf/plugins/inputs/docker"
+	_ "github.com/influxdata/telegraf/plugins/inputs/dovecot"
+	_ "github.com/influxdata/telegraf/plugins/inputs/elasticsearch"
+	_ "github.com/influxdata/telegraf/plugins/inputs/exec"
+	_ "github.com/influxdata/telegraf/plugins/inputs/filestat"
+	_ "github.com/influxdata/telegraf/plugins/inputs/github_webhooks"
+	_ "github.com/influxdata/telegraf/plugins/inputs/graylog"
+	_ "github.com/influxdata/telegraf/plugins/inputs/haproxy"
+	_ "github.com/influxdata/telegraf/plugins/inputs/http_response"
+	_ "github.com/influxdata/telegraf/plugins/inputs/httpjson"
+	_ "github.com/influxdata/telegraf/plugins/inputs/influxdb"
+	_ "github.com/influxdata/telegraf/plugins/inputs/ipmi_sensor"
+	_ "github.com/influxdata/telegraf/plugins/inputs/jolokia"
+	_ "github.com/influxdata/telegraf/plugins/inputs/kafka_consumer"
+	_ "github.com/influxdata/telegraf/plugins/inputs/leofs"
+	_ "github.com/influxdata/telegraf/plugins/inputs/lustre2"
+	_ "github.com/influxdata/telegraf/plugins/inputs/mailchimp"
+	_ "github.com/influxdata/telegraf/plugins/inputs/memcached"
+	_ "github.com/influxdata/telegraf/plugins/inputs/mesos"
+	_ "github.com/influxdata/telegraf/plugins/inputs/mongodb"
+	_ "github.com/influxdata/telegraf/plugins/inputs/mqtt_consumer"
+	_ "github.com/influxdata/telegraf/plugins/inputs/mysql"
+	_ "github.com/influxdata/telegraf/plugins/inputs/nats_consumer"
+	_ "github.com/influxdata/telegraf/plugins/inputs/net_response"
+	_ "github.com/influxdata/telegraf/plugins/inputs/nginx"
+	_ "github.com/influxdata/telegraf/plugins/inputs/nsq"
+	_ "github.com/influxdata/telegraf/plugins/inputs/nstat"
+	_ "github.com/influxdata/telegraf/plugins/inputs/ntpq"
+	_ "github.com/influxdata/telegraf/plugins/inputs/passenger"
+	_ "github.com/influxdata/telegraf/plugins/inputs/phpfpm"
+	_ "github.com/influxdata/telegraf/plugins/inputs/ping"
+	_ "github.com/influxdata/telegraf/plugins/inputs/postgresql"
+	_ "github.com/influxdata/telegraf/plugins/inputs/postgresql_extensible"
+	_ "github.com/influxdata/telegraf/plugins/inputs/powerdns"
+	_ "github.com/influxdata/telegraf/plugins/inputs/procstat"
+	_ "github.com/influxdata/telegraf/plugins/inputs/prometheus"
+	_ "github.com/influxdata/telegraf/plugins/inputs/puppetagent"
+	_ "github.com/influxdata/telegraf/plugins/inputs/rabbitmq"
+	_ "github.com/influxdata/telegraf/plugins/inputs/raindrops"
+	_ "github.com/influxdata/telegraf/plugins/inputs/redis"
+	_ "github.com/influxdata/telegraf/plugins/inputs/rethinkdb"
+	_ "github.com/influxdata/telegraf/plugins/inputs/riak"
+	_ "github.com/influxdata/telegraf/plugins/inputs/rollbar_webhooks"
+	_ "github.com/influxdata/telegraf/plugins/inputs/sensors"
+	_ "github.com/influxdata/telegraf/plugins/inputs/snmp"
+	_ "github.com/influxdata/telegraf/plugins/inputs/sqlserver"
+	_ "github.com/influxdata/telegraf/plugins/inputs/statsd"
+	_ "github.com/influxdata/telegraf/plugins/inputs/sysstat"
+	_ "github.com/influxdata/telegraf/plugins/inputs/system"
+	_ "github.com/influxdata/telegraf/plugins/inputs/tail"
+	_ "github.com/influxdata/telegraf/plugins/inputs/tcp_listener"
+	_ "github.com/influxdata/telegraf/plugins/inputs/trig"
+	_ "github.com/influxdata/telegraf/plugins/inputs/twemproxy"
+	_ "github.com/influxdata/telegraf/plugins/inputs/udp_listener"
+	_ "github.com/influxdata/telegraf/plugins/inputs/varnish"
+	_ "github.com/influxdata/telegraf/plugins/inputs/win_perf_counters"
+	_ "github.com/influxdata/telegraf/plugins/inputs/zfs"
+	_ "github.com/influxdata/telegraf/plugins/inputs/zookeeper"
+)

plugins/inputs/apache/README.md

@@ -1,7 +1,7 @@
 # Telegraf plugin: Apache
 
 #### Plugin arguments:
-- **urls** []string: List of apache-status URLs to collect from.
+- **urls** []string: List of apache-status URLs to collect from. Default is "http://localhost/server-status?auto".
 
 #### Description
 

plugins/inputs/apache/apache.go

@@ -11,7 +11,8 @@ import (
 	"sync"
 	"time"
 
-	"github.com/influxdb/telegraf/plugins"
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/plugins/inputs"
 )
 
 type Apache struct {
@@ -19,7 +20,8 @@ type Apache struct {
 }
 
 var sampleConfig = `
-  # An array of Apache status URI to gather stats.
+  ## An array of Apache status URI to gather stats.
+  ## Default is "http://localhost/server-status?auto".
   urls = ["http://localhost/server-status?auto"]
 `
 
@@ -31,7 +33,11 @@ func (n *Apache) Description() string {
 	return "Read Apache status information (mod_status)"
 }
 
-func (n *Apache) Gather(acc plugins.Accumulator) error {
+func (n *Apache) Gather(acc telegraf.Accumulator) error {
+	if len(n.Urls) == 0 {
+		n.Urls = []string{"http://localhost/server-status?auto"}
+	}
+
 	var wg sync.WaitGroup
 	var outerr error
 
@@ -57,9 +63,12 @@ var tr = &http.Transport{
 	ResponseHeaderTimeout: time.Duration(3 * time.Second),
 }
 
-var client = &http.Client{Transport: tr}
+var client = &http.Client{
+	Transport: tr,
+	Timeout:   time.Duration(4 * time.Second),
+}
 
-func (n *Apache) gatherUrl(addr *url.URL, acc plugins.Accumulator) error {
+func (n *Apache) gatherUrl(addr *url.URL, acc telegraf.Accumulator) error {
 	resp, err := client.Get(addr.String())
 	if err != nil {
 		return fmt.Errorf("error making HTTP request to %s: %s", addr.String(), err)
@@ -72,32 +81,33 @@ func (n *Apache) gatherUrl(addr *url.URL, acc plugins.Accumulator) error {
 	tags := getTags(addr)
 
 	sc := bufio.NewScanner(resp.Body)
+	fields := make(map[string]interface{})
 	for sc.Scan() {
 		line := sc.Text()
 		if strings.Contains(line, ":") {
-
 			parts := strings.SplitN(line, ":", 2)
 			key, part := strings.Replace(parts[0], " ", "", -1), strings.TrimSpace(parts[1])
 
 			switch key {
-
 			case "Scoreboard":
-				n.gatherScores(part, acc, tags)
+				for field, value := range n.gatherScores(part) {
+					fields[field] = value
+				}
 			default:
 				value, err := strconv.ParseFloat(part, 64)
 				if err != nil {
 					continue
 				}
-				acc.Add(key, value, tags)
+				fields[key] = value
 			}
 		}
 	}
+	acc.AddFields("apache", fields, tags)
 
 	return nil
 }
 
-func (n *Apache) gatherScores(data string, acc plugins.Accumulator, tags map[string]string) {
+func (n *Apache) gatherScores(data string) map[string]interface{} {
-
 	var waiting, open int = 0, 0
 	var S, R, W, K, D, C, L, G, I int = 0, 0, 0, 0, 0, 0, 0, 0, 0
 
@@ -129,17 +139,20 @@ func (n *Apache) gatherScores(data string, acc plugins.Accumulator, tags map[str
 		}
 	}
 
-	acc.Add("scboard_waiting", float64(waiting), tags)
+	fields := map[string]interface{}{
-	acc.Add("scboard_starting", float64(S), tags)
+		"scboard_waiting":      float64(waiting),
-	acc.Add("scboard_reading", float64(R), tags)
+		"scboard_starting":     float64(S),
-	acc.Add("scboard_sending", float64(W), tags)
+		"scboard_reading":      float64(R),
-	acc.Add("scboard_keepalive", float64(K), tags)
+		"scboard_sending":      float64(W),
-	acc.Add("scboard_dnslookup", float64(D), tags)
+		"scboard_keepalive":    float64(K),
-	acc.Add("scboard_closing", float64(C), tags)
+		"scboard_dnslookup":    float64(D),
-	acc.Add("scboard_logging", float64(L), tags)
+		"scboard_closing":      float64(C),
-	acc.Add("scboard_finishing", float64(G), tags)
+		"scboard_logging":      float64(L),
-	acc.Add("scboard_idle_cleanup", float64(I), tags)
+		"scboard_finishing":    float64(G),
-	acc.Add("scboard_open", float64(open), tags)
+		"scboard_idle_cleanup": float64(I),
+		"scboard_open":         float64(open),
+	}
+	return fields
 }
 
 // Get tag(s) for the apache plugin
@@ -160,7 +173,7 @@ func getTags(addr *url.URL) map[string]string {
 }
 
 func init() {
-	plugins.Add("apache", func() plugins.Plugin {
+	inputs.Add("apache", func() telegraf.Input {
 		return &Apache{}
 	})
 }

plugins/inputs/apache/apache_test.go

@@ -6,9 +6,8 @@ import (
 	"net/http/httptest"
 	"testing"
 
-	"github.com/influxdb/telegraf/testutil"
+	"github.com/influxdata/telegraf/testutil"
 
-	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
 
@@ -44,37 +43,31 @@ func TestHTTPApache(t *testing.T) {
 	err := a.Gather(&acc)
 	require.NoError(t, err)
 
-	testInt := []struct {
+	fields := map[string]interface{}{
-		measurement string
+		"TotalAccesses":        float64(1.29811861e+08),
-		value       float64
+		"TotalkBytes":          float64(5.213701865e+09),
-	}{
+		"CPULoad":              float64(6.51929),
-		{"TotalAccesses", 1.29811861e+08},
+		"Uptime":               float64(941553),
-		{"TotalkBytes", 5.213701865e+09},
+		"ReqPerSec":            float64(137.87),
-		{"CPULoad", 6.51929},
+		"BytesPerSec":          float64(5.67024e+06),
-		{"Uptime", 941553},
+		"BytesPerReq":          float64(41127.4),
-		{"ReqPerSec", 137.87},
+		"BusyWorkers":          float64(270),
-		{"BytesPerSec", 5.67024e+06},
+		"IdleWorkers":          float64(630),
-		{"BytesPerReq", 41127.4},
+		"ConnsTotal":           float64(1451),
-		{"BusyWorkers", 270},
+		"ConnsAsyncWriting":    float64(32),
-		{"IdleWorkers", 630},
+		"ConnsAsyncKeepAlive":  float64(945),
-		{"ConnsTotal", 1451},
+		"ConnsAsyncClosing":    float64(205),
-		{"ConnsAsyncWriting", 32},
+		"scboard_waiting":      float64(630),
-		{"ConnsAsyncKeepAlive", 945},
+		"scboard_starting":     float64(0),
-		{"ConnsAsyncClosing", 205},
+		"scboard_reading":      float64(157),
-		{"scboard_waiting", 630},
+		"scboard_sending":      float64(113),
-		{"scboard_starting", 0},
+		"scboard_keepalive":    float64(0),
-		{"scboard_reading", 157},
+		"scboard_dnslookup":    float64(0),
-		{"scboard_sending", 113},
+		"scboard_closing":      float64(0),
-		{"scboard_keepalive", 0},
+		"scboard_logging":      float64(0),
-		{"scboard_dnslookup", 0},
+		"scboard_finishing":    float64(0),
-		{"scboard_closing", 0},
+		"scboard_idle_cleanup": float64(0),
-		{"scboard_logging", 0},
+		"scboard_open":         float64(2850),
-		{"scboard_finishing", 0},
-		{"scboard_idle_cleanup", 0},
-		{"scboard_open", 2850},
-	}
-
-	for _, test := range testInt {
-		assert.True(t, acc.CheckValue(test.measurement, test.value))
 	}
+	acc.AssertContainsFields(t, "apache", fields)
 }

plugins/inputs/bcache/README.md

@@ -26,27 +26,27 @@ Measurement names:
 dirty_data
   Amount of dirty data for this backing device in the cache. Continuously
   updated unlike the cache set's version, but may be slightly off.
-  
+
 bypassed
   Amount of IO (both reads and writes) that has bypassed the cache
-  
+
 
 cache_bypass_hits
 cache_bypass_misses
   Hits and misses for IO that is intended to skip the cache are still counted,
   but broken out here.
-  
+
 cache_hits
 cache_misses
 cache_hit_ratio
   Hits and misses are counted per individual IO as bcache sees them; a
   partial hit is counted as a miss.
-  
+
 cache_miss_collisions
   Counts instances where data was going to be inserted into the cache from a
   cache miss, but raced with a write and data was already present (usually 0
   since the synchronization for cache misses was rewritten)
-  
+
 cache_readaheads
   Count of times readahead occurred.
 ```
@@ -70,7 +70,7 @@ Using this configuration:
 When run with:
 
 ```
-./telegraf -config telegraf.conf -filter bcache -test
+./telegraf -config telegraf.conf -input-filter bcache -test
 ```
 
 It produces:

plugins/inputs/bcache/bcache.go

@@ -8,7 +8,8 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/influxdb/telegraf/plugins"
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/plugins/inputs"
 )
 
 type Bcache struct {
@@ -17,14 +18,14 @@ type Bcache struct {
 }
 
 var sampleConfig = `
-  # Bcache sets path
+  ## Bcache sets path
-  # If not specified, then default is:
+  ## If not specified, then default is:
-  # bcachePath = "/sys/fs/bcache"
+  bcachePath = "/sys/fs/bcache"
-  #
+
-  # By default, telegraf gather stats for all bcache devices
+  ## By default, telegraf gather stats for all bcache devices
-  # Setting devices will restrict the stats to the specified
+  ## Setting devices will restrict the stats to the specified
-  # bcache devices.
+  ## bcache devices.
-  # bcacheDevs = ["bcache0", ...]
+  bcacheDevs = ["bcache0"]
 `
 
 func (b *Bcache) SampleConfig() string {
@@ -69,7 +70,7 @@ func prettyToBytes(v string) uint64 {
 	return uint64(result)
 }
 
-func (b *Bcache) gatherBcache(bdev string, acc plugins.Accumulator) error {
+func (b *Bcache) gatherBcache(bdev string, acc telegraf.Accumulator) error {
 	tags := getTags(bdev)
 	metrics, err := filepath.Glob(bdev + "/stats_total/*")
 	if len(metrics) < 0 {
@@ -81,7 +82,9 @@ func (b *Bcache) gatherBcache(bdev string, acc plugins.Accumulator) error {
 	}
 	rawValue := strings.TrimSpace(string(file))
 	value := prettyToBytes(rawValue)
-	acc.Add("dirty_data", value, tags)
+
+	fields := make(map[string]interface{})
+	fields["dirty_data"] = value
 
 	for _, path := range metrics {
 		key := filepath.Base(path)
@@ -92,16 +95,17 @@ func (b *Bcache) gatherBcache(bdev string, acc plugins.Accumulator) error {
 		}
 		if key == "bypassed" {
 			value := prettyToBytes(rawValue)
-			acc.Add(key, value, tags)
+			fields[key] = value
 		} else {
 			value, _ := strconv.ParseUint(rawValue, 10, 64)
-			acc.Add(key, value, tags)
+			fields[key] = value
 		}
 	}
+	acc.AddFields("bcache", fields, tags)
 	return nil
 }
 
-func (b *Bcache) Gather(acc plugins.Accumulator) error {
+func (b *Bcache) Gather(acc telegraf.Accumulator) error {
 	bcacheDevsChecked := make(map[string]bool)
 	var restrictDevs bool
 	if len(b.BcacheDevs) != 0 {
@@ -117,7 +121,7 @@ func (b *Bcache) Gather(acc plugins.Accumulator) error {
 	}
 	bdevs, _ := filepath.Glob(bcachePath + "/*/bdev*")
 	if len(bdevs) < 1 {
-		return errors.New("Can't found any bcache device")
+		return errors.New("Can't find any bcache device")
 	}
 	for _, bdev := range bdevs {
 		if restrictDevs {
@@ -132,7 +136,7 @@ func (b *Bcache) Gather(acc plugins.Accumulator) error {
 }
 
 func init() {
-	plugins.Add("bcache", func() plugins.Plugin {
+	inputs.Add("bcache", func() telegraf.Input {
 		return &Bcache{}
 	})
 }

plugins/inputs/bcache/bcache_test.go

@@ -5,8 +5,7 @@ import (
 	"os"
 	"testing"
 
-	"github.com/influxdb/telegraf/testutil"
+	"github.com/influxdata/telegraf/testutil"
-	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
 
@@ -29,11 +28,6 @@ var (
 	testBcacheBackingDevPath = os.TempDir() + "/telegraf/sys/devices/virtual/block/md10"
 )
 
-type metrics struct {
-	name  string
-	value uint64
-}
-
 func TestBcacheGeneratesMetrics(t *testing.T) {
 	err := os.MkdirAll(testBcacheUuidPath, 0755)
 	require.NoError(t, err)
@@ -53,70 +47,52 @@ func TestBcacheGeneratesMetrics(t *testing.T) {
 	err = os.MkdirAll(testBcacheUuidPath+"/bdev0/stats_total", 0755)
 	require.NoError(t, err)
 
-	err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/dirty_data", []byte(dirty_data), 0644)
+	err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/dirty_data",
+		[]byte(dirty_data), 0644)
 	require.NoError(t, err)
 
-	err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/stats_total/bypassed", []byte(bypassed), 0644)
+	err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/stats_total/bypassed",
+		[]byte(bypassed), 0644)
 	require.NoError(t, err)
 
-	err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/stats_total/cache_bypass_hits", []byte(cache_bypass_hits), 0644)
+	err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/stats_total/cache_bypass_hits",
+		[]byte(cache_bypass_hits), 0644)
 	require.NoError(t, err)
 
-	err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/stats_total/cache_bypass_misses", []byte(cache_bypass_misses), 0644)
+	err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/stats_total/cache_bypass_misses",
+		[]byte(cache_bypass_misses), 0644)
 	require.NoError(t, err)
 
-	err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/stats_total/cache_hit_ratio", []byte(cache_hit_ratio), 0644)
+	err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/stats_total/cache_hit_ratio",
+		[]byte(cache_hit_ratio), 0644)
 	require.NoError(t, err)
 
-	err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/stats_total/cache_hits", []byte(cache_hits), 0644)
+	err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/stats_total/cache_hits",
+		[]byte(cache_hits), 0644)
 	require.NoError(t, err)
 
-	err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/stats_total/cache_miss_collisions", []byte(cache_miss_collisions), 0644)
+	err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/stats_total/cache_miss_collisions",
+		[]byte(cache_miss_collisions), 0644)
 	require.NoError(t, err)
 
-	err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/stats_total/cache_misses", []byte(cache_misses), 0644)
+	err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/stats_total/cache_misses",
+		[]byte(cache_misses), 0644)
 	require.NoError(t, err)
 
-	err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/stats_total/cache_readaheads", []byte(cache_readaheads), 0644)
+	err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/stats_total/cache_readaheads",
+		[]byte(cache_readaheads), 0644)
 	require.NoError(t, err)
 
-	intMetrics := []*metrics{
+	fields := map[string]interface{}{
-		{
+		"dirty_data":            uint64(1610612736),
-			name:  "dirty_data",
+		"bypassed":              uint64(5167704440832),
-			value: 1610612736,
+		"cache_bypass_hits":     uint64(146155333),
-		},
+		"cache_bypass_misses":   uint64(0),
-		{
+		"cache_hit_ratio":       uint64(90),
-			name:  "bypassed",
+		"cache_hits":            uint64(511469583),
-			value: 5167704440832,
+		"cache_miss_collisions": uint64(157567),
-		},
+		"cache_misses":          uint64(50616331),
-		{
+		"cache_readaheads":      uint64(2),
-			name:  "cache_bypass_hits",
-			value: 146155333,
-		},
-		{
-			name:  "cache_bypass_misses",
-			value: 0,
-		},
-		{
-			name:  "cache_hit_ratio",
-			value: 90,
-		},
-		{
-			name:  "cache_hits",
-			value: 511469583,
-		},
-		{
-			name:  "cache_miss_collisions",
-			value: 157567,
-		},
-		{
-			name:  "cache_misses",
-			value: 50616331,
-		},
-		{
-			name:  "cache_readaheads",
-			value: 2,
-		},
 	}
 
 	tags := map[string]string{
@@ -126,27 +102,19 @@ func TestBcacheGeneratesMetrics(t *testing.T) {
 
 	var acc testutil.Accumulator
 
-	//all devs
+	// all devs
 	b := &Bcache{BcachePath: testBcachePath}
 
 	err = b.Gather(&acc)
 	require.NoError(t, err)
+	acc.AssertContainsTaggedFields(t, "bcache", fields, tags)
 
-	for _, metric := range intMetrics {
+	// one exist dev
-		assert.True(t, acc.HasUIntValue(metric.name), metric.name)
-		assert.True(t, acc.CheckTaggedValue(metric.name, metric.value, tags))
-	}
-
-	//one exist dev
 	b = &Bcache{BcachePath: testBcachePath, BcacheDevs: []string{"bcache0"}}
 
 	err = b.Gather(&acc)
 	require.NoError(t, err)
-
+	acc.AssertContainsTaggedFields(t, "bcache", fields, tags)
-	for _, metric := range intMetrics {
-		assert.True(t, acc.HasUIntValue(metric.name), metric.name)
-		assert.True(t, acc.CheckTaggedValue(metric.name, metric.value, tags))
-	}
 
 	err = os.RemoveAll(os.TempDir() + "/telegraf")
 	require.NoError(t, err)

plugins/inputs/cassandra/README.md

@@ -0,0 +1,125 @@
+# Telegraf plugin: Cassandra
+
+#### Plugin arguments:
+- **context** string: Context root used for jolokia url
+- **servers** []string: List of servers with the format "<user:passwd@><host>:port"
+- **metrics** []string: List of Jmx paths that identify mbeans attributes
+
+#### Description
+
+The Cassandra plugin collects Cassandra/JVM metrics exposed as MBean's attributes through jolokia REST endpoint. All metrics are collected for each server configured.
+
+See: https://jolokia.org/ and [Cassandra Documentation](http://docs.datastax.com/en/cassandra/3.x/cassandra/operations/monitoringCassandraTOC.html)
+
+# Measurements:
+Cassandra plugin produces one or more measurements for each metric configured, adding Server's name  as `host` tag. More than one measurement is generated when querying table metrics with a wildcard for the keyspace or table name.
+
+Given a configuration like:
+
+```toml
+[[inputs.cassandra]]
+  context = "/jolokia/read"
+  servers = [":8778"]
+  metrics = ["/java.lang:type=Memory/HeapMemoryUsage"]
+```
+
+The collected metrics will be:
+
+```
+javaMemory,host=myHost,mname=HeapMemoryUsage HeapMemoryUsage_committed=1040187392,HeapMemoryUsage_init=1050673152,HeapMemoryUsage_max=1040187392,HeapMemoryUsage_used=368155000 1459551767230567084
+```
+
+# Useful Metrics:
+
+Here is a list of metrics that might be useful to monitor your cassandra cluster. This was put together from multiple sources on the web.
+
+- [How to monitor Cassandra performance metrics](https://www.datadoghq.com/blog/how-to-monitor-cassandra-performance-metrics)
+- [Cassandra Documentation](http://docs.datastax.com/en/cassandra/3.x/cassandra/operations/monitoringCassandraTOC.html)
+
+####measurement = javaGarbageCollector
+
+- /java.lang:type=GarbageCollector,name=ConcurrentMarkSweep/CollectionTime       
+- /java.lang:type=GarbageCollector,name=ConcurrentMarkSweep/CollectionCount
+- /java.lang:type=GarbageCollector,name=ParNew/CollectionTime          
+- /java.lang:type=GarbageCollector,name=ParNew/CollectionCount
+
+####measurement = javaMemory
+
+- /java.lang:type=Memory/HeapMemoryUsage
+- /java.lang:type=Memory/NonHeapMemoryUsage
+
+####measurement = cassandraCache
+
+- /org.apache.cassandra.metrics:type=Cache,scope=KeyCache,name=Hit
+- /org.apache.cassandra.metrics:type=Cache,scope=KeyCache,name=Requests
+- /org.apache.cassandra.metrics:type=Cache,scope=KeyCache,name=Entries
+- /org.apache.cassandra.metrics:type=Cache,scope=KeyCache,name=Size 
+- /org.apache.cassandra.metrics:type=Cache,scope=KeyCache,name=Capacity 
+- /org.apache.cassandra.metrics:type=Cache,scope=RowCache,name=Hit
+- /org.apache.cassandra.metrics:type=Cache,scope=RowCache,name=Requests     
+- /org.apache.cassandra.metrics:type=Cache,scope=RowCache,name=Entries
+- /org.apache.cassandra.metrics:type=Cache,scope=RowCache,name=Size
+- /org.apache.cassandra.metrics:type=Cache,scope=RowCache,name=Capacity
+
+####measurement = cassandraClient
+
+- /org.apache.cassandra.metrics:type=Client,name=connectedNativeClients
+
+####measurement = cassandraClientRequest
+
+- /org.apache.cassandra.metrics:type=ClientRequest,scope=Read,name=TotalLatency        
+- /org.apache.cassandra.metrics:type=ClientRequest,scope=Write,name=TotalLatency         
+- /org.apache.cassandra.metrics:type=ClientRequest,scope=Read,name=Latency       
+- /org.apache.cassandra.metrics:type=ClientRequest,scope=Write,name=Latency        
+- /org.apache.cassandra.metrics:type=ClientRequest,scope=Read,name=Timeouts       
+- /org.apache.cassandra.metrics:type=ClientRequest,scope=Write,name=Timeouts
+- /org.apache.cassandra.metrics:type=ClientRequest,scope=Read,name=Unavailables        
+- /org.apache.cassandra.metrics:type=ClientRequest,scope=Write,name=Unavailables         
+- /org.apache.cassandra.metrics:type=ClientRequest,scope=Read,name=Failures         
+- /org.apache.cassandra.metrics:type=ClientRequest,scope=Write,name=Failures 
+
+####measurement = cassandraCommitLog
+
+- /org.apache.cassandra.metrics:type=CommitLog,name=PendingTasks        
+- /org.apache.cassandra.metrics:type=CommitLog,name=TotalCommitLogSize
+
+####measurement = cassandraCompaction
+
+- /org.apache.cassandra.metrics:type=Compaction,name=CompletedTask
+- /org.apache.cassandra.metrics:type=Compaction,name=PendingTasks    
+- /org.apache.cassandra.metrics:type=Compaction,name=TotalCompactionsCompleted
+- /org.apache.cassandra.metrics:type=Compaction,name=BytesCompacted
+
+####measurement = cassandraStorage
+
+- /org.apache.cassandra.metrics:type=Storage,name=Load
+-  /org.apache.cassandra.metrics:type=Storage,name=Exceptions 
+
+####measurement = cassandraTable
+Using wildcards for "keyspace" and "scope" can create a lot of series as metrics will be reported for every table and keyspace including internal system tables. Specify a keyspace name and/or a table name to limit them.
+
+- /org.apache.cassandra.metrics:type=Table,keyspace=\*,scope=\*,name=LiveDiskSpaceUsed
+- /org.apache.cassandra.metrics:type=Table,keyspace=\*,scope=\*,name=TotalDiskSpaceUsed
+- /org.apache.cassandra.metrics:type=Table,keyspace=\*,scope=\*,name=ReadLatency
+- /org.apache.cassandra.metrics:type=Table,keyspace=\*,scope=\*,name=CoordinatorReadLatency 
+- /org.apache.cassandra.metrics:type=Table,keyspace=\*,scope=\*,name=WriteLatency 
+- /org.apache.cassandra.metrics:type=Table,keyspace=\*,scope=\*,name=ReadTotalLatency 
+- /org.apache.cassandra.metrics:type=Table,keyspace=\*,scope=\*,name=WriteTotalLatency              
+
+
+####measurement = cassandraThreadPools
+
+- /org.apache.cassandra.metrics:type=ThreadPools,path=internal,scope=CompactionExecutor,name=ActiveTasks          
+- /org.apache.cassandra.metrics:type=ThreadPools,path=internal,scope=AntiEntropyStage,name=ActiveTasks         
+-  /org.apache.cassandra.metrics:type=ThreadPools,path=request,scope=CounterMutationStage,name=PendingTasks
+- /org.apache.cassandra.metrics:type=ThreadPools,path=request,scope=CounterMutationStage,name=CurrentlyBlockedTasks        
+- /org.apache.cassandra.metrics:type=ThreadPools,path=request,scope=MutationStage,name=PendingTasks
+- /org.apache.cassandra.metrics:type=ThreadPools,path=request,scope=MutationStage,name=CurrentlyBlockedTasks        
+- /org.apache.cassandra.metrics:type=ThreadPools,path=request,scope=ReadRepairStage,name=PendingTasks
+- /org.apache.cassandra.metrics:type=ThreadPools,path=request,scope=ReadRepairStage,name=CurrentlyBlockedTasks        
+- /org.apache.cassandra.metrics:type=ThreadPools,path=request,scope=ReadStage,name=PendingTasks
+- /org.apache.cassandra.metrics:type=ThreadPools,path=request,scope=ReadStage,name=CurrentlyBlockedTasks          
+-  /org.apache.cassandra.metrics:type=ThreadPools,path=request,scope=RequestResponseStage,name=PendingTasks                  
+- /org.apache.cassandra.metrics:type=ThreadPools,path=request,scope=RequestResponseStage,name=CurrentlyBlockedTasks 
+
+

plugins/inputs/cassandra/cassandra.go

@@ -0,0 +1,309 @@
+package cassandra
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/plugins/inputs"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"net/url"
+	"strings"
+)
+
+type JolokiaClient interface {
+	MakeRequest(req *http.Request) (*http.Response, error)
+}
+
+type JolokiaClientImpl struct {
+	client *http.Client
+}
+
+func (c JolokiaClientImpl) MakeRequest(req *http.Request) (*http.Response, error) {
+	return c.client.Do(req)
+}
+
+type Cassandra struct {
+	jClient JolokiaClient
+	Context string
+	Servers []string
+	Metrics []string
+}
+
+type javaMetric struct {
+	host   string
+	metric string
+	acc    telegraf.Accumulator
+}
+
+type cassandraMetric struct {
+	host   string
+	metric string
+	acc    telegraf.Accumulator
+}
+
+type jmxMetric interface {
+	addTagsFields(out map[string]interface{})
+}
+
+func newJavaMetric(host string, metric string,
+	acc telegraf.Accumulator) *javaMetric {
+	return &javaMetric{host: host, metric: metric, acc: acc}
+}
+
+func newCassandraMetric(host string, metric string,
+	acc telegraf.Accumulator) *cassandraMetric {
+	return &cassandraMetric{host: host, metric: metric, acc: acc}
+}
+
+func addValuesAsFields(values map[string]interface{}, fields map[string]interface{},
+	mname string) {
+	for k, v := range values {
+		if v != nil {
+			fields[mname+"_"+k] = v
+		}
+	}
+}
+
+func parseJmxMetricRequest(mbean string) map[string]string {
+	tokens := make(map[string]string)
+	classAndPairs := strings.Split(mbean, ":")
+	if classAndPairs[0] == "org.apache.cassandra.metrics" {
+		tokens["class"] = "cassandra"
+	} else if classAndPairs[0] == "java.lang" {
+		tokens["class"] = "java"
+	} else {
+		return tokens
+	}
+	pairs := strings.Split(classAndPairs[1], ",")
+	for _, pair := range pairs {
+		p := strings.Split(pair, "=")
+		tokens[p[0]] = p[1]
+	}
+	return tokens
+}
+
+func addTokensToTags(tokens map[string]string, tags map[string]string) {
+	for k, v := range tokens {
+		if k == "name" {
+			tags["mname"] = v // name seems to a reserved word in influxdb
+		} else if k == "class" || k == "type" {
+			continue // class and type are used in the metric name
+		} else {
+			tags[k] = v
+		}
+	}
+}
+
+func (j javaMetric) addTagsFields(out map[string]interface{}) {
+	tags := make(map[string]string)
+	fields := make(map[string]interface{})
+
+	a := out["request"].(map[string]interface{})
+	attribute := a["attribute"].(string)
+	mbean := a["mbean"].(string)
+
+	tokens := parseJmxMetricRequest(mbean)
+	addTokensToTags(tokens, tags)
+	tags["cassandra_host"] = j.host
+
+	if _, ok := tags["mname"]; !ok {
+		//Queries for a single value will not return a "name" tag in the response.
+		tags["mname"] = attribute
+	}
+
+	if values, ok := out["value"]; ok {
+		switch t := values.(type) {
+		case map[string]interface{}:
+			addValuesAsFields(values.(map[string]interface{}), fields, attribute)
+		case interface{}:
+			fields[attribute] = t
+		}
+		j.acc.AddFields(tokens["class"]+tokens["type"], fields, tags)
+	} else {
+		fmt.Printf("Missing key 'value' in '%s' output response\n%v\n",
+			j.metric, out)
+	}
+}
+
+func addCassandraMetric(mbean string, c cassandraMetric,
+	values map[string]interface{}) {
+
+	tags := make(map[string]string)
+	fields := make(map[string]interface{})
+	tokens := parseJmxMetricRequest(mbean)
+	addTokensToTags(tokens, tags)
+	tags["cassandra_host"] = c.host
+	addValuesAsFields(values, fields, tags["mname"])
+	c.acc.AddFields(tokens["class"]+tokens["type"], fields, tags)
+
+}
+
+func (c cassandraMetric) addTagsFields(out map[string]interface{}) {
+
+	r := out["request"]
+
+	tokens := parseJmxMetricRequest(r.(map[string]interface{})["mbean"].(string))
+	// Requests with wildcards for keyspace or table names will return nested
+	// maps in the json response
+	if tokens["type"] == "Table" && (tokens["keyspace"] == "*" ||
+		tokens["scope"] == "*") {
+		if valuesMap, ok := out["value"]; ok {
+			for k, v := range valuesMap.(map[string]interface{}) {
+				addCassandraMetric(k, c, v.(map[string]interface{}))
+			}
+		} else {
+			fmt.Printf("Missing key 'value' in '%s' output response\n%v\n",
+				c.metric, out)
+			return
+		}
+	} else {
+		if values, ok := out["value"]; ok {
+			addCassandraMetric(r.(map[string]interface{})["mbean"].(string),
+				c, values.(map[string]interface{}))
+		} else {
+			fmt.Printf("Missing key 'value' in '%s' output response\n%v\n",
+				c.metric, out)
+			return
+		}
+	}
+}
+
+func (j *Cassandra) SampleConfig() string {
+	return `
+  # This is the context root used to compose the jolokia url
+  context = "/jolokia/read"
+  ## List of cassandra servers exposing jolokia read service
+  servers = ["myuser:mypassword@10.10.10.1:8778","10.10.10.2:8778",":8778"]
+  ## List of metrics collected on above servers
+  ## Each metric consists of a jmx path.
+  ## This will collect all heap memory usage metrics from the jvm and
+  ## ReadLatency metrics for all keyspaces and tables.
+  ## "type=Table" in the query works with Cassandra3.0. Older versions might
+  ## need to use "type=ColumnFamily"
+  metrics  = [
+    "/java.lang:type=Memory/HeapMemoryUsage",
+    "/org.apache.cassandra.metrics:type=Table,keyspace=*,scope=*,name=ReadLatency"
+  ]
+`
+}
+
+func (j *Cassandra) Description() string {
+	return "Read Cassandra metrics through Jolokia"
+}
+
+func (j *Cassandra) getAttr(requestUrl *url.URL) (map[string]interface{}, error) {
+	// Create + send request
+	req, err := http.NewRequest("GET", requestUrl.String(), nil)
+	if err != nil {
+		return nil, err
+	}
+
+	resp, err := j.jClient.MakeRequest(req)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	// Process response
+	if resp.StatusCode != http.StatusOK {
+		err = fmt.Errorf("Response from url \"%s\" has status code %d (%s), expected %d (%s)",
+			requestUrl,
+			resp.StatusCode,
+			http.StatusText(resp.StatusCode),
+			http.StatusOK,
+			http.StatusText(http.StatusOK))
+		return nil, err
+	}
+
+	// read body
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return nil, err
+	}
+
+	// Unmarshal json
+	var jsonOut map[string]interface{}
+	if err = json.Unmarshal([]byte(body), &jsonOut); err != nil {
+		return nil, errors.New("Error decoding JSON response")
+	}
+
+	return jsonOut, nil
+}
+
+func parseServerTokens(server string) map[string]string {
+	serverTokens := make(map[string]string)
+
+	hostAndUser := strings.Split(server, "@")
+	hostPort := ""
+	userPasswd := ""
+	if len(hostAndUser) == 2 {
+		hostPort = hostAndUser[1]
+		userPasswd = hostAndUser[0]
+	} else {
+		hostPort = hostAndUser[0]
+	}
+	hostTokens := strings.Split(hostPort, ":")
+	serverTokens["host"] = hostTokens[0]
+	serverTokens["port"] = hostTokens[1]
+
+	if userPasswd != "" {
+		userTokens := strings.Split(userPasswd, ":")
+		serverTokens["user"] = userTokens[0]
+		serverTokens["passwd"] = userTokens[1]
+	}
+	return serverTokens
+}
+
+func (c *Cassandra) Gather(acc telegraf.Accumulator) error {
+	context := c.Context
+	servers := c.Servers
+	metrics := c.Metrics
+
+	for _, server := range servers {
+		for _, metric := range metrics {
+			serverTokens := parseServerTokens(server)
+
+			var m jmxMetric
+			if strings.HasPrefix(metric, "/java.lang:") {
+				m = newJavaMetric(serverTokens["host"], metric, acc)
+			} else if strings.HasPrefix(metric,
+				"/org.apache.cassandra.metrics:") {
+				m = newCassandraMetric(serverTokens["host"], metric, acc)
+			} else {
+				// unsupported metric type
+				log.Printf("Unsupported Cassandra metric [%s], skipping",
+					metric)
+				continue
+			}
+
+			// Prepare URL
+			requestUrl, err := url.Parse("http://" + serverTokens["host"] + ":" +
+				serverTokens["port"] + context + metric)
+			if err != nil {
+				return err
+			}
+			if serverTokens["user"] != "" && serverTokens["passwd"] != "" {
+				requestUrl.User = url.UserPassword(serverTokens["user"],
+					serverTokens["passwd"])
+			}
+			fmt.Printf("host %s url %s\n", serverTokens["host"], requestUrl)
+
+			out, err := c.getAttr(requestUrl)
+			if out["status"] != 200.0 {
+				fmt.Printf("URL returned with status %v\n", out["status"])
+				continue
+			}
+			m.addTagsFields(out)
+		}
+	}
+	return nil
+}
+
+func init() {
+	inputs.Add("cassandra", func() telegraf.Input {
+		return &Cassandra{jClient: &JolokiaClientImpl{client: &http.Client{}}}
+	})
+}

plugins/inputs/cassandra/cassandra_test.go

@@ -0,0 +1,286 @@
+package cassandra
+
+import (
+	_ "fmt"
+	"io/ioutil"
+	"net/http"
+	"strings"
+	"testing"
+
+	"github.com/influxdata/telegraf/testutil"
+	"github.com/stretchr/testify/assert"
+	_ "github.com/stretchr/testify/require"
+)
+
+const validJavaMultiValueJSON = `
+{
+  "request":{
+    "mbean":"java.lang:type=Memory",
+    "attribute":"HeapMemoryUsage",
+    "type":"read"
+  },
+  "value":{
+    "init":67108864,
+    "committed":456130560,
+    "max":477626368,
+    "used":203288528
+  },
+  "timestamp":1446129191,
+  "status":200
+}`
+
+const validCassandraMultiValueJSON = `
+{
+	"request": {
+		"mbean": "org.apache.cassandra.metrics:keyspace=test_keyspace1,name=ReadLatency,scope=test_table,type=Table",
+		"type": "read"},
+	"status": 200,
+	"timestamp": 1458089229,
+	"value": {
+		"999thPercentile": 20.0,
+		"99thPercentile": 10.0,
+		"Count": 400,
+		"DurationUnit": "microseconds",
+		"Max": 30.0,
+		"Mean": null,
+		"MeanRate": 3.0,
+		"Min": 1.0,
+		"RateUnit": "events/second",
+		"StdDev": null
+	}
+}`
+
+const validCassandraNestedMultiValueJSON = `
+{
+	"request": {
+		"mbean": "org.apache.cassandra.metrics:keyspace=test_keyspace1,name=ReadLatency,scope=*,type=Table",
+		"type": "read"},
+    "status": 200,
+    "timestamp": 1458089184,
+    "value": {
+		"org.apache.cassandra.metrics:keyspace=test_keyspace1,name=ReadLatency,scope=test_table1,type=Table":
+		{  	"999thPercentile": 1.0,
+			"Count": 100,
+			"DurationUnit": "microseconds",
+			"OneMinuteRate": 1.0,
+			"RateUnit": "events/second",
+			"StdDev": null
+		},
+		"org.apache.cassandra.metrics:keyspace=test_keyspace2,name=ReadLatency,scope=test_table2,type=Table":
+		{  	"999thPercentile": 2.0,
+			"Count": 200,
+			"DurationUnit": "microseconds",
+			"OneMinuteRate": 2.0,
+			"RateUnit": "events/second",
+			"StdDev": null
+		}
+	}
+}`
+
+const validSingleValueJSON = `
+{
+  "request":{
+    "path":"used",
+    "mbean":"java.lang:type=Memory",
+    "attribute":"HeapMemoryUsage",
+    "type":"read"
+  },
+  "value":209274376,
+  "timestamp":1446129256,
+  "status":200
+}`
+
+const validJavaMultiTypeJSON = `
+{
+   "request":{
+	   "mbean":"java.lang:name=ConcurrentMarkSweep,type=GarbageCollector",
+	   "attribute":"CollectionCount",
+	   "type":"read"
+   },
+   "value":1,
+   "timestamp":1459316570,
+   "status":200
+}`
+
+const invalidJSON = "I don't think this is JSON"
+
+const empty = ""
+
+var Servers = []string{"10.10.10.10:8778"}
+var AuthServers = []string{"user:passwd@10.10.10.10:8778"}
+var MultipleServers = []string{"10.10.10.10:8778", "10.10.10.11:8778"}
+var HeapMetric = "/java.lang:type=Memory/HeapMemoryUsage"
+var ReadLatencyMetric = "/org.apache.cassandra.metrics:type=Table,keyspace=test_keyspace1,scope=test_table,name=ReadLatency"
+var NestedReadLatencyMetric = "/org.apache.cassandra.metrics:type=Table,keyspace=test_keyspace1,scope=*,name=ReadLatency"
+var GarbageCollectorMetric1 = "/java.lang:type=GarbageCollector,name=ConcurrentMarkSweep/CollectionCount"
+var GarbageCollectorMetric2 = "/java.lang:type=GarbageCollector,name=ConcurrentMarkSweep/CollectionTime"
+var Context = "/jolokia/read"
+
+type jolokiaClientStub struct {
+	responseBody string
+	statusCode   int
+}
+
+func (c jolokiaClientStub) MakeRequest(req *http.Request) (*http.Response, error) {
+	resp := http.Response{}
+	resp.StatusCode = c.statusCode
+	resp.Body = ioutil.NopCloser(strings.NewReader(c.responseBody))
+	return &resp, nil
+}
+
+// Generates a pointer to an HttpJson object that uses a mock HTTP client.
+// Parameters:
+//     response  : Body of the response that the mock HTTP client should return
+//     statusCode: HTTP status code the mock HTTP client should return
+//
+// Returns:
+//     *HttpJson: Pointer to an HttpJson object that uses the generated mock HTTP client
+func genJolokiaClientStub(response string, statusCode int, servers []string, metrics []string) *Cassandra {
+	return &Cassandra{
+		jClient: jolokiaClientStub{responseBody: response, statusCode: statusCode},
+		Context: Context,
+		Servers: servers,
+		Metrics: metrics,
+	}
+}
+
+// Test that the proper values are ignored or collected for class=Java
+func TestHttpJsonJavaMultiValue(t *testing.T) {
+	cassandra := genJolokiaClientStub(validJavaMultiValueJSON, 200,
+		MultipleServers, []string{HeapMetric})
+
+	var acc testutil.Accumulator
+	acc.SetDebug(true)
+	err := cassandra.Gather(&acc)
+
+	assert.Nil(t, err)
+	assert.Equal(t, 2, len(acc.Metrics))
+
+	fields := map[string]interface{}{
+		"HeapMemoryUsage_init":      67108864.0,
+		"HeapMemoryUsage_committed": 456130560.0,
+		"HeapMemoryUsage_max":       477626368.0,
+		"HeapMemoryUsage_used":      203288528.0,
+	}
+	tags1 := map[string]string{
+		"cassandra_host": "10.10.10.10",
+		"mname":          "HeapMemoryUsage",
+	}
+
+	tags2 := map[string]string{
+		"cassandra_host": "10.10.10.11",
+		"mname":          "HeapMemoryUsage",
+	}
+	acc.AssertContainsTaggedFields(t, "javaMemory", fields, tags1)
+	acc.AssertContainsTaggedFields(t, "javaMemory", fields, tags2)
+}
+
+func TestHttpJsonJavaMultiType(t *testing.T) {
+	cassandra := genJolokiaClientStub(validJavaMultiTypeJSON, 200, AuthServers, []string{GarbageCollectorMetric1, GarbageCollectorMetric2})
+
+	var acc testutil.Accumulator
+	acc.SetDebug(true)
+	err := cassandra.Gather(&acc)
+
+	assert.Nil(t, err)
+	assert.Equal(t, 2, len(acc.Metrics))
+
+	fields := map[string]interface{}{
+		"CollectionCount": 1.0,
+	}
+
+	tags := map[string]string{
+		"cassandra_host": "10.10.10.10",
+		"mname":          "ConcurrentMarkSweep",
+	}
+	acc.AssertContainsTaggedFields(t, "javaGarbageCollector", fields, tags)
+}
+
+// Test that the proper values are ignored or collected
+func TestHttpJsonOn404(t *testing.T) {
+
+	jolokia := genJolokiaClientStub(validJavaMultiValueJSON, 404, Servers,
+		[]string{HeapMetric})
+
+	var acc testutil.Accumulator
+	err := jolokia.Gather(&acc)
+
+	assert.Nil(t, err)
+	assert.Equal(t, 0, len(acc.Metrics))
+}
+
+// Test that the proper values are ignored or collected for class=Cassandra
+func TestHttpJsonCassandraMultiValue(t *testing.T) {
+	cassandra := genJolokiaClientStub(validCassandraMultiValueJSON, 200, Servers, []string{ReadLatencyMetric})
+
+	var acc testutil.Accumulator
+	err := cassandra.Gather(&acc)
+
+	assert.Nil(t, err)
+	assert.Equal(t, 1, len(acc.Metrics))
+
+	fields := map[string]interface{}{
+		"ReadLatency_999thPercentile": 20.0,
+		"ReadLatency_99thPercentile":  10.0,
+		"ReadLatency_Count":           400.0,
+		"ReadLatency_DurationUnit":    "microseconds",
+		"ReadLatency_Max":             30.0,
+		"ReadLatency_MeanRate":        3.0,
+		"ReadLatency_Min":             1.0,
+		"ReadLatency_RateUnit":        "events/second",
+	}
+
+	tags := map[string]string{
+		"cassandra_host": "10.10.10.10",
+		"mname":          "ReadLatency",
+		"keyspace":       "test_keyspace1",
+		"scope":          "test_table",
+	}
+	acc.AssertContainsTaggedFields(t, "cassandraTable", fields, tags)
+}
+
+// Test that the proper values are ignored or collected for class=Cassandra with
+// nested values
+func TestHttpJsonCassandraNestedMultiValue(t *testing.T) {
+	cassandra := genJolokiaClientStub(validCassandraNestedMultiValueJSON, 200, Servers, []string{NestedReadLatencyMetric})
+
+	var acc testutil.Accumulator
+	acc.SetDebug(true)
+	err := cassandra.Gather(&acc)
+
+	assert.Nil(t, err)
+	assert.Equal(t, 2, len(acc.Metrics))
+
+	fields1 := map[string]interface{}{
+		"ReadLatency_999thPercentile": 1.0,
+		"ReadLatency_Count":           100.0,
+		"ReadLatency_DurationUnit":    "microseconds",
+		"ReadLatency_OneMinuteRate":   1.0,
+		"ReadLatency_RateUnit":        "events/second",
+	}
+
+	fields2 := map[string]interface{}{
+		"ReadLatency_999thPercentile": 2.0,
+		"ReadLatency_Count":           200.0,
+		"ReadLatency_DurationUnit":    "microseconds",
+		"ReadLatency_OneMinuteRate":   2.0,
+		"ReadLatency_RateUnit":        "events/second",
+	}
+
+	tags1 := map[string]string{
+		"cassandra_host": "10.10.10.10",
+		"mname":          "ReadLatency",
+		"keyspace":       "test_keyspace1",
+		"scope":          "test_table1",
+	}
+
+	tags2 := map[string]string{
+		"cassandra_host": "10.10.10.10",
+		"mname":          "ReadLatency",
+		"keyspace":       "test_keyspace2",
+		"scope":          "test_table2",
+	}
+
+	acc.AssertContainsTaggedFields(t, "cassandraTable", fields1, tags1)
+	acc.AssertContainsTaggedFields(t, "cassandraTable", fields2, tags2)
+}

plugins/inputs/ceph/README.md

@@ -0,0 +1,109 @@
+# Ceph Storage Input Plugin
+
+Collects performance metrics from the MON and OSD nodes in a Ceph storage cluster.  
+
+The plugin works by scanning the configured SocketDir for OSD and MON socket files.  When it finds
+a MON socket, it runs **ceph --admin-daemon $file perfcounters_dump**. For OSDs it runs **ceph --admin-daemon $file perf dump** 
+
+The resulting JSON is parsed and grouped into collections, based on top-level key.  Top-level keys are
+used as collection tags, and all sub-keys are flattened. For example:
+
+```
+ { 
+   "paxos": { 
+     "refresh": 9363435,
+     "refresh_latency": { 
+       "avgcount": 9363435,
+       "sum": 5378.794002000
+     }
+   }
+ }
+```
+
+Would be parsed into the following metrics, all of which would be tagged with collection=paxos:
+
+ - refresh = 9363435
+ - refresh_latency.avgcount: 9363435
+ - refresh_latency.sum: 5378.794002000
+
+
+### Configuration:
+
+```
+# Collects performance metrics from the MON and OSD nodes in a Ceph storage cluster.
+[[inputs.ceph]]
+  ## All configuration values are optional, defaults are shown below
+
+  ## location of ceph binary
+  ceph_binary = "/usr/bin/ceph"
+
+  ## directory in which to look for socket files
+  socket_dir = "/var/run/ceph"
+
+  ## prefix of MON and OSD socket files, used to determine socket type
+  mon_prefix = "ceph-mon"
+  osd_prefix = "ceph-osd"
+
+  ## suffix used to identify socket files
+  socket_suffix = "asok"
+```
+
+### Measurements & Fields:
+
+All fields are collected under the **ceph** measurement and stored as float64s. For a full list of fields, see the sample perf dumps in ceph_test.go. 
+
+
+### Tags:
+
+All measurements will have the following tags:
+
+- type: either 'osd' or 'mon' to indicate which type of node was queried
+- id: a unique string identifier, parsed from the socket file name for the node
+- collection: the top-level key under which these fields were reported. Possible values are:
+  - for MON nodes:
+    - cluster
+    - leveldb
+    - mon
+    - paxos
+    - throttle-mon_client_bytes
+    - throttle-mon_daemon_bytes
+    - throttle-msgr_dispatch_throttler-mon
+  - for OSD nodes:
+    - WBThrottle
+    - filestore
+    - leveldb
+    - mutex-FileJournal::completions_lock
+    - mutex-FileJournal::finisher_lock
+    - mutex-FileJournal::write_lock
+    - mutex-FileJournal::writeq_lock
+    - mutex-JOS::ApplyManager::apply_lock
+    - mutex-JOS::ApplyManager::com_lock
+    - mutex-JOS::SubmitManager::lock
+    - mutex-WBThrottle::lock
+    - objecter
+    - osd
+    - recoverystate_perf
+    - throttle-filestore_bytes
+    - throttle-filestore_ops
+    - throttle-msgr_dispatch_throttler-client
+    - throttle-msgr_dispatch_throttler-cluster
+    - throttle-msgr_dispatch_throttler-hb_back_server
+    - throttle-msgr_dispatch_throttler-hb_front_serve
+    - throttle-msgr_dispatch_throttler-hbclient
+    - throttle-msgr_dispatch_throttler-ms_objecter
+    - throttle-objecter_bytes
+    - throttle-objecter_ops
+    - throttle-osd_client_bytes
+    - throttle-osd_client_messages
+ 
+
+### Example Output:
+
+<pre>
+telegraf -test -config /etc/telegraf/telegraf.conf -config-directory /etc/telegraf/telegraf.d  -input-filter ceph
+* Plugin: ceph, Collection 1
+> ceph,collection=paxos, id=node-2,role=openstack,type=mon accept_timeout=0,begin=14931264,begin_bytes.avgcount=14931264,begin_bytes.sum=180309683362,begin_keys.avgcount=0,begin_keys.sum=0,begin_latency.avgcount=14931264,begin_latency.sum=9293.29589,collect=1,collect_bytes.avgcount=1,collect_bytes.sum=24,collect_keys.avgcount=1,collect_keys.sum=1,collect_latency.avgcount=1,collect_latency.sum=0.00028,collect_timeout=0,collect_uncommitted=0,commit=14931264,commit_bytes.avgcount=0,commit_bytes.sum=0,commit_keys.avgcount=0,commit_keys.sum=0,commit_latency.avgcount=0,commit_latency.sum=0,lease_ack_timeout=0,lease_timeout=0,new_pn=0,new_pn_latency.avgcount=0,new_pn_latency.sum=0,refresh=14931264,refresh_latency.avgcount=14931264,refresh_latency.sum=8706.98498,restart=4,share_state=0,share_state_bytes.avgcount=0,share_state_bytes.sum=0,share_state_keys.avgcount=0,share_state_keys.sum=0,start_leader=0,start_peon=1,store_state=14931264,store_state_bytes.avgcount=14931264,store_state_bytes.sum=353119959211,store_state_keys.avgcount=14931264,store_state_keys.sum=289807523,store_state_latency.avgcount=14931264,store_state_latency.sum=10952.835724 1462821234814535148
+> ceph,collection=throttle-mon_client_bytes,id=node-2,type=mon get=1413017,get_or_fail_fail=0,get_or_fail_success=0,get_sum=71211705,max=104857600,put=1413013,put_sum=71211459,take=0,take_sum=0,val=246,wait.avgcount=0,wait.sum=0 1462821234814737219
+> ceph,collection=throttle-mon_daemon_bytes,id=node-2,type=mon get=4058121,get_or_fail_fail=0,get_or_fail_success=0,get_sum=6027348117,max=419430400,put=4058121,put_sum=6027348117,take=0,take_sum=0,val=0,wait.avgcount=0,wait.sum=0 1462821234814815661
+> ceph,collection=throttle-msgr_dispatch_throttler-mon,id=node-2,type=mon get=54276277,get_or_fail_fail=0,get_or_fail_success=0,get_sum=370232877040,max=104857600,put=54276277,put_sum=370232877040,take=0,take_sum=0,val=0,wait.avgcount=0,wait.sum=0 1462821234814872064
+</pre>

plugins/inputs/ceph/ceph.go

@@ -0,0 +1,249 @@
+package ceph
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/plugins/inputs"
+	"io/ioutil"
+	"log"
+	"os/exec"
+	"path/filepath"
+	"strings"
+)
+
+const (
+	measurement = "ceph"
+	typeMon     = "monitor"
+	typeOsd     = "osd"
+	osdPrefix   = "ceph-osd"
+	monPrefix   = "ceph-mon"
+	sockSuffix  = "asok"
+)
+
+type Ceph struct {
+	CephBinary   string
+	OsdPrefix    string
+	MonPrefix    string
+	SocketDir    string
+	SocketSuffix string
+}
+
+func (c *Ceph) setDefaults() {
+	if c.CephBinary == "" {
+		c.CephBinary = "/usr/bin/ceph"
+	}
+
+	if c.OsdPrefix == "" {
+		c.OsdPrefix = osdPrefix
+	}
+
+	if c.MonPrefix == "" {
+		c.MonPrefix = monPrefix
+	}
+
+	if c.SocketDir == "" {
+		c.SocketDir = "/var/run/ceph"
+	}
+
+	if c.SocketSuffix == "" {
+		c.SocketSuffix = sockSuffix
+	}
+}
+
+func (c *Ceph) Description() string {
+	return "Collects performance metrics from the MON and OSD nodes in a Ceph storage cluster."
+}
+
+var sampleConfig = `
+  ## All configuration values are optional, defaults are shown below
+
+  ## location of ceph binary
+  ceph_binary = "/usr/bin/ceph"
+
+  ## directory in which to look for socket files
+  socket_dir = "/var/run/ceph"
+
+  ## prefix of MON and OSD socket files, used to determine socket type
+  mon_prefix = "ceph-mon"
+  osd_prefix = "ceph-osd"
+
+  ## suffix used to identify socket files
+  socket_suffix = "asok"
+`
+
+func (c *Ceph) SampleConfig() string {
+	return sampleConfig
+}
+
+func (c *Ceph) Gather(acc telegraf.Accumulator) error {
+	c.setDefaults()
+	sockets, err := findSockets(c)
+	if err != nil {
+		return fmt.Errorf("failed to find sockets at path '%s': %v", c.SocketDir, err)
+	}
+
+	for _, s := range sockets {
+		dump, err := perfDump(c.CephBinary, s)
+		if err != nil {
+			log.Printf("error reading from socket '%s': %v", s.socket, err)
+			continue
+		}
+		data, err := parseDump(dump)
+		if err != nil {
+			log.Printf("error parsing dump from socket '%s': %v", s.socket, err)
+			continue
+		}
+		for tag, metrics := range *data {
+			acc.AddFields(measurement,
+				map[string]interface{}(metrics),
+				map[string]string{"type": s.sockType, "id": s.sockId, "collection": tag})
+		}
+	}
+	return nil
+}
+
+func init() {
+	inputs.Add(measurement, func() telegraf.Input { return &Ceph{} })
+}
+
+var perfDump = func(binary string, socket *socket) (string, error) {
+	cmdArgs := []string{"--admin-daemon", socket.socket}
+	if socket.sockType == typeOsd {
+		cmdArgs = append(cmdArgs, "perf", "dump")
+	} else if socket.sockType == typeMon {
+		cmdArgs = append(cmdArgs, "perfcounters_dump")
+	} else {
+		return "", fmt.Errorf("ignoring unknown socket type: %s", socket.sockType)
+	}
+
+	cmd := exec.Command(binary, cmdArgs...)
+	var out bytes.Buffer
+	cmd.Stdout = &out
+	err := cmd.Run()
+	if err != nil {
+		return "", fmt.Errorf("error running ceph dump: %s", err)
+	}
+
+	return out.String(), nil
+}
+
+var findSockets = func(c *Ceph) ([]*socket, error) {
+	listing, err := ioutil.ReadDir(c.SocketDir)
+	if err != nil {
+		return []*socket{}, fmt.Errorf("Failed to read socket directory '%s': %v", c.SocketDir, err)
+	}
+	sockets := make([]*socket, 0, len(listing))
+	for _, info := range listing {
+		f := info.Name()
+		var sockType string
+		var sockPrefix string
+		if strings.HasPrefix(f, c.MonPrefix) {
+			sockType = typeMon
+			sockPrefix = monPrefix
+		}
+		if strings.HasPrefix(f, c.OsdPrefix) {
+			sockType = typeOsd
+			sockPrefix = osdPrefix
+
+		}
+		if sockType == typeOsd || sockType == typeMon {
+			path := filepath.Join(c.SocketDir, f)
+			sockets = append(sockets, &socket{parseSockId(f, sockPrefix, c.SocketSuffix), sockType, path})
+		}
+	}
+	return sockets, nil
+}
+
+func parseSockId(fname, prefix, suffix string) string {
+	s := fname
+	s = strings.TrimPrefix(s, prefix)
+	s = strings.TrimSuffix(s, suffix)
+	s = strings.Trim(s, ".-_")
+	return s
+}
+
+type socket struct {
+	sockId   string
+	sockType string
+	socket   string
+}
+
+type metric struct {
+	pathStack []string // lifo stack of name components
+	value     float64
+}
+
+// Pops names of pathStack to build the flattened name for a metric
+func (m *metric) name() string {
+	buf := bytes.Buffer{}
+	for i := len(m.pathStack) - 1; i >= 0; i-- {
+		if buf.Len() > 0 {
+			buf.WriteString(".")
+		}
+		buf.WriteString(m.pathStack[i])
+	}
+	return buf.String()
+}
+
+type metricMap map[string]interface{}
+
+type taggedMetricMap map[string]metricMap
+
+// Parses a raw JSON string into a taggedMetricMap
+// Delegates the actual parsing to newTaggedMetricMap(..)
+func parseDump(dump string) (*taggedMetricMap, error) {
+	data := make(map[string]interface{})
+	err := json.Unmarshal([]byte(dump), &data)
+	if err != nil {
+		return nil, fmt.Errorf("failed to parse json: '%s': %v", dump, err)
+	}
+
+	tmm := newTaggedMetricMap(data)
+
+	if err != nil {
+		return nil, fmt.Errorf("failed to tag dataset: '%v': %v", tmm, err)
+	}
+
+	return tmm, nil
+}
+
+// Builds a TaggedMetricMap out of a generic string map.
+// The top-level key is used as a tag and all sub-keys are flattened into metrics
+func newTaggedMetricMap(data map[string]interface{}) *taggedMetricMap {
+	tmm := make(taggedMetricMap)
+	for tag, datapoints := range data {
+		mm := make(metricMap)
+		for _, m := range flatten(datapoints) {
+			mm[m.name()] = m.value
+		}
+		tmm[tag] = mm
+	}
+	return &tmm
+}
+
+// Recursively flattens any k-v hierarchy present in data.
+// Nested keys are flattened into ordered slices associated with a metric value.
+// The key slices are treated as stacks, and are expected to be reversed and concatenated
+// when passed as metrics to the accumulator. (see (*metric).name())
+func flatten(data interface{}) []*metric {
+	var metrics []*metric
+
+	switch val := data.(type) {
+	case float64:
+		metrics = []*metric{&metric{make([]string, 0, 1), val}}
+	case map[string]interface{}:
+		metrics = make([]*metric, 0, len(val))
+		for k, v := range val {
+			for _, m := range flatten(v) {
+				m.pathStack = append(m.pathStack, k)
+				metrics = append(metrics, m)
+			}
+		}
+	default:
+		log.Printf("Ignoring unexpected type '%T' for value %v", val, val)
+	}
+
+	return metrics
+}

plugins/inputs/ceph/ceph_test.go

@@ -0,0 +1,682 @@
+package ceph
+
+import (
+	"fmt"
+	"github.com/influxdata/telegraf/testutil"
+	"github.com/stretchr/testify/assert"
+	"io/ioutil"
+	"os"
+	"path"
+	"strconv"
+	"strings"
+	"testing"
+)
+
+const (
+	epsilon = float64(0.00000001)
+)
+
+func TestParseSockId(t *testing.T) {
+	s := parseSockId(sockFile(osdPrefix, 1), osdPrefix, sockSuffix)
+	assert.Equal(t, s, "1")
+}
+
+func TestParseMonDump(t *testing.T) {
+	dump, err := parseDump(monPerfDump)
+	assert.NoError(t, err)
+	assert.InEpsilon(t, 5678670180, (*dump)["cluster"]["osd_kb_used"], epsilon)
+	assert.InEpsilon(t, 6866.540527000, (*dump)["paxos"]["store_state_latency.sum"], epsilon)
+}
+
+func TestParseOsdDump(t *testing.T) {
+	dump, err := parseDump(osdPerfDump)
+	assert.NoError(t, err)
+	assert.InEpsilon(t, 552132.109360000, (*dump)["filestore"]["commitcycle_interval.sum"], epsilon)
+	assert.Equal(t, float64(0), (*dump)["mutex-FileJournal::finisher_lock"]["wait.avgcount"])
+}
+
+func TestGather(t *testing.T) {
+	saveFind := findSockets
+	saveDump := perfDump
+	defer func() {
+		findSockets = saveFind
+		perfDump = saveDump
+	}()
+
+	findSockets = func(c *Ceph) ([]*socket, error) {
+		return []*socket{&socket{"osd.1", typeOsd, ""}}, nil
+	}
+
+	perfDump = func(binary string, s *socket) (string, error) {
+		return osdPerfDump, nil
+	}
+
+	acc := &testutil.Accumulator{}
+	c := &Ceph{}
+	c.Gather(acc)
+
+}
+
+func TestFindSockets(t *testing.T) {
+	tmpdir, err := ioutil.TempDir("", "socktest")
+	assert.NoError(t, err)
+	defer func() {
+		err := os.Remove(tmpdir)
+		assert.NoError(t, err)
+	}()
+	c := &Ceph{
+		CephBinary: "foo",
+		SocketDir:  tmpdir,
+	}
+
+	c.setDefaults()
+
+	for _, st := range sockTestParams {
+		createTestFiles(tmpdir, st)
+
+		sockets, err := findSockets(c)
+		assert.NoError(t, err)
+
+		for i := 1; i <= st.osds; i++ {
+			assertFoundSocket(t, tmpdir, typeOsd, i, sockets)
+		}
+
+		for i := 1; i <= st.mons; i++ {
+			assertFoundSocket(t, tmpdir, typeMon, i, sockets)
+		}
+		cleanupTestFiles(tmpdir, st)
+	}
+}
+
+func assertFoundSocket(t *testing.T, dir, sockType string, i int, sockets []*socket) {
+	var prefix string
+	if sockType == typeOsd {
+		prefix = osdPrefix
+	} else {
+		prefix = monPrefix
+	}
+	expected := path.Join(dir, sockFile(prefix, i))
+	found := false
+	for _, s := range sockets {
+		fmt.Printf("Checking %s\n", s.socket)
+		if s.socket == expected {
+			found = true
+			assert.Equal(t, s.sockType, sockType, "Unexpected socket type for '%s'", s)
+			assert.Equal(t, s.sockId, strconv.Itoa(i))
+		}
+	}
+	assert.True(t, found, "Did not find socket: %s", expected)
+}
+
+func sockFile(prefix string, i int) string {
+	return strings.Join([]string{prefix, strconv.Itoa(i), sockSuffix}, ".")
+}
+
+func createTestFiles(dir string, st *SockTest) {
+	writeFile := func(prefix string, i int) {
+		f := sockFile(prefix, i)
+		fpath := path.Join(dir, f)
+		ioutil.WriteFile(fpath, []byte(""), 0777)
+	}
+	tstFileApply(st, writeFile)
+}
+
+func cleanupTestFiles(dir string, st *SockTest) {
+	rmFile := func(prefix string, i int) {
+		f := sockFile(prefix, i)
+		fpath := path.Join(dir, f)
+		err := os.Remove(fpath)
+		if err != nil {
+			fmt.Printf("Error removing test file %s: %v\n", fpath, err)
+		}
+	}
+	tstFileApply(st, rmFile)
+}
+
+func tstFileApply(st *SockTest, fn func(prefix string, i int)) {
+	for i := 1; i <= st.osds; i++ {
+		fn(osdPrefix, i)
+	}
+	for i := 1; i <= st.mons; i++ {
+		fn(monPrefix, i)
+	}
+}
+
+type SockTest struct {
+	osds int
+	mons int
+}
+
+var sockTestParams = []*SockTest{
+	&SockTest{
+		osds: 2,
+		mons: 2,
+	},
+	&SockTest{
+		mons: 1,
+	},
+	&SockTest{
+		osds: 1,
+	},
+	&SockTest{},
+}
+
+var monPerfDump = `
+{ "cluster": { "num_mon": 2,
+      "num_mon_quorum": 2,
+      "num_osd": 26,
+      "num_osd_up": 26,
+      "num_osd_in": 26,
+      "osd_epoch": 3306,
+      "osd_kb": 11487846448,
+      "osd_kb_used": 5678670180,
+      "osd_kb_avail": 5809176268,
+      "num_pool": 12,
+      "num_pg": 768,
+      "num_pg_active_clean": 768,
+      "num_pg_active": 768,
+      "num_pg_peering": 0,
+      "num_object": 397616,
+      "num_object_degraded": 0,
+      "num_object_unfound": 0,
+      "num_bytes": 2917848227467,
+      "num_mds_up": 0,
+      "num_mds_in": 0,
+      "num_mds_failed": 0,
+      "mds_epoch": 1},
+  "leveldb": { "leveldb_get": 321950312,
+      "leveldb_transaction": 18729922,
+      "leveldb_compact": 0,
+      "leveldb_compact_range": 74141,
+      "leveldb_compact_queue_merge": 0,
+      "leveldb_compact_queue_len": 0},
+  "mon": {},
+  "paxos": { "start_leader": 0,
+      "start_peon": 1,
+      "restart": 4,
+      "refresh": 9363435,
+      "refresh_latency": { "avgcount": 9363435,
+          "sum": 5378.794002000},
+      "begin": 9363435,
+      "begin_keys": { "avgcount": 0,
+          "sum": 0},
+      "begin_bytes": { "avgcount": 9363435,
+          "sum": 110468605489},
+      "begin_latency": { "avgcount": 9363435,
+          "sum": 5850.060682000},
+      "commit": 9363435,
+      "commit_keys": { "avgcount": 0,
+          "sum": 0},
+      "commit_bytes": { "avgcount": 0,
+          "sum": 0},
+      "commit_latency": { "avgcount": 0,
+          "sum": 0.000000000},
+      "collect": 1,
+      "collect_keys": { "avgcount": 1,
+          "sum": 1},
+      "collect_bytes": { "avgcount": 1,
+          "sum": 24},
+      "collect_latency": { "avgcount": 1,
+          "sum": 0.000280000},
+      "collect_uncommitted": 0,
+      "collect_timeout": 0,
+      "accept_timeout": 0,
+      "lease_ack_timeout": 0,
+      "lease_timeout": 0,
+      "store_state": 9363435,
+      "store_state_keys": { "avgcount": 9363435,
+          "sum": 176572789},
+      "store_state_bytes": { "avgcount": 9363435,
+          "sum": 216355887217},
+      "store_state_latency": { "avgcount": 9363435,
+          "sum": 6866.540527000},
+      "share_state": 0,
+      "share_state_keys": { "avgcount": 0,
+          "sum": 0},
+      "share_state_bytes": { "avgcount": 0,
+          "sum": 0},
+      "new_pn": 0,
+      "new_pn_latency": { "avgcount": 0,
+          "sum": 0.000000000}},
+  "throttle-mon_client_bytes": { "val": 246,
+      "max": 104857600,
+      "get": 896030,
+      "get_sum": 45854374,
+      "get_or_fail_fail": 0,
+      "get_or_fail_success": 0,
+      "take": 0,
+      "take_sum": 0,
+      "put": 896026,
+      "put_sum": 45854128,
+      "wait": { "avgcount": 0,
+          "sum": 0.000000000}},
+  "throttle-mon_daemon_bytes": { "val": 0,
+      "max": 419430400,
+      "get": 2773768,
+      "get_sum": 3627676976,
+      "get_or_fail_fail": 0,
+      "get_or_fail_success": 0,
+      "take": 0,
+      "take_sum": 0,
+      "put": 2773768,
+      "put_sum": 3627676976,
+      "wait": { "avgcount": 0,
+          "sum": 0.000000000}},
+  "throttle-msgr_dispatch_throttler-mon": { "val": 0,
+      "max": 104857600,
+      "get": 34504949,
+      "get_sum": 226860281124,
+      "get_or_fail_fail": 0,
+      "get_or_fail_success": 0,
+      "take": 0,
+      "take_sum": 0,
+      "put": 34504949,
+      "put_sum": 226860281124,
+      "wait": { "avgcount": 0,
+          "sum": 0.000000000}}}
+`
+
+var osdPerfDump = `
+{ "WBThrottle": { "bytes_dirtied": 28405539,
+      "bytes_wb": 0,
+      "ios_dirtied": 93,
+      "ios_wb": 0,
+      "inodes_dirtied": 86,
+      "inodes_wb": 0},
+  "filestore": { "journal_queue_max_ops": 0,
+      "journal_queue_ops": 0,
+      "journal_ops": 1108008,
+      "journal_queue_max_bytes": 0,
+      "journal_queue_bytes": 0,
+      "journal_bytes": 73233416196,
+      "journal_latency": { "avgcount": 1108008,
+          "sum": 290.981036000},
+      "journal_wr": 1091866,
+      "journal_wr_bytes": { "avgcount": 1091866,
+          "sum": 74925682688},
+      "journal_full": 0,
+      "committing": 0,
+      "commitcycle": 110389,
+      "commitcycle_interval": { "avgcount": 110389,
+          "sum": 552132.109360000},
+      "commitcycle_latency": { "avgcount": 110389,
+          "sum": 178.657804000},
+      "op_queue_max_ops": 50,
+      "op_queue_ops": 0,
+      "ops": 1108008,
+      "op_queue_max_bytes": 104857600,
+      "op_queue_bytes": 0,
+      "bytes": 73226768148,
+      "apply_latency": { "avgcount": 1108008,
+          "sum": 947.742722000},
+      "queue_transaction_latency_avg": { "avgcount": 1108008,
+          "sum": 0.511327000}},
+  "leveldb": { "leveldb_get": 4361221,
+      "leveldb_transaction": 4351276,
+      "leveldb_compact": 0,
+      "leveldb_compact_range": 0,
+      "leveldb_compact_queue_merge": 0,
+      "leveldb_compact_queue_len": 0},
+  "mutex-FileJournal::completions_lock": { "wait": { "avgcount": 0,
+          "sum": 0.000000000}},
+  "mutex-FileJournal::finisher_lock": { "wait": { "avgcount": 0,
+          "sum": 0.000000000}},
+  "mutex-FileJournal::write_lock": { "wait": { "avgcount": 0,
+          "sum": 0.000000000}},
+  "mutex-FileJournal::writeq_lock": { "wait": { "avgcount": 0,
+          "sum": 0.000000000}},
+  "mutex-JOS::ApplyManager::apply_lock": { "wait": { "avgcount": 0,
+          "sum": 0.000000000}},
+  "mutex-JOS::ApplyManager::com_lock": { "wait": { "avgcount": 0,
+          "sum": 0.000000000}},
+  "mutex-JOS::SubmitManager::lock": { "wait": { "avgcount": 0,
+          "sum": 0.000000000}},
+  "mutex-WBThrottle::lock": { "wait": { "avgcount": 0,
+          "sum": 0.000000000}},
+  "objecter": { "op_active": 0,
+      "op_laggy": 0,
+      "op_send": 0,
+      "op_send_bytes": 0,
+      "op_resend": 0,
+      "op_ack": 0,
+      "op_commit": 0,
+      "op": 0,
+      "op_r": 0,
+      "op_w": 0,
+      "op_rmw": 0,
+      "op_pg": 0,
+      "osdop_stat": 0,
+      "osdop_create": 0,
+      "osdop_read": 0,
+      "osdop_write": 0,
+      "osdop_writefull": 0,
+      "osdop_append": 0,
+      "osdop_zero": 0,
+      "osdop_truncate": 0,
+      "osdop_delete": 0,
+      "osdop_mapext": 0,
+      "osdop_sparse_read": 0,
+      "osdop_clonerange": 0,
+      "osdop_getxattr": 0,
+      "osdop_setxattr": 0,
+      "osdop_cmpxattr": 0,
+      "osdop_rmxattr": 0,
+      "osdop_resetxattrs": 0,
+      "osdop_tmap_up": 0,
+      "osdop_tmap_put": 0,
+      "osdop_tmap_get": 0,
+      "osdop_call": 0,
+      "osdop_watch": 0,
+      "osdop_notify": 0,
+      "osdop_src_cmpxattr": 0,
+      "osdop_pgls": 0,
+      "osdop_pgls_filter": 0,
+      "osdop_other": 0,
+      "linger_active": 0,
+      "linger_send": 0,
+      "linger_resend": 0,
+      "poolop_active": 0,
+      "poolop_send": 0,
+      "poolop_resend": 0,
+      "poolstat_active": 0,
+      "poolstat_send": 0,
+      "poolstat_resend": 0,
+      "statfs_active": 0,
+      "statfs_send": 0,
+      "statfs_resend": 0,
+      "command_active": 0,
+      "command_send": 0,
+      "command_resend": 0,
+      "map_epoch": 3300,
+      "map_full": 0,
+      "map_inc": 3293,
+      "osd_sessions": 0,
+      "osd_session_open": 0,
+      "osd_session_close": 0,
+      "osd_laggy": 0},
+  "osd": { "opq": 0,
+      "op_wip": 0,
+      "op": 23939,
+      "op_in_bytes": 1245903961,
+      "op_out_bytes": 29103083856,
+      "op_latency": { "avgcount": 23939,
+          "sum": 440.192015000},
+      "op_process_latency": { "avgcount": 23939,
+          "sum": 30.170685000},
+      "op_r": 23112,
+      "op_r_out_bytes": 29103056146,
+      "op_r_latency": { "avgcount": 23112,
+          "sum": 19.373526000},
+      "op_r_process_latency": { "avgcount": 23112,
+          "sum": 14.625928000},
+      "op_w": 549,
+      "op_w_in_bytes": 1245804358,
+      "op_w_rlat": { "avgcount": 549,
+          "sum": 17.022299000},
+      "op_w_latency": { "avgcount": 549,
+          "sum": 418.494610000},
+      "op_w_process_latency": { "avgcount": 549,
+          "sum": 13.316555000},
+      "op_rw": 278,
+      "op_rw_in_bytes": 99603,
+      "op_rw_out_bytes": 27710,
+      "op_rw_rlat": { "avgcount": 278,
+          "sum": 2.213785000},
+      "op_rw_latency": { "avgcount": 278,
+          "sum": 2.323879000},
+      "op_rw_process_latency": { "avgcount": 278,
+          "sum": 2.228202000},
+      "subop": 1074774,
+      "subop_in_bytes": 26841811636,
+      "subop_latency": { "avgcount": 1074774,
+          "sum": 745.509160000},
+      "subop_w": 0,
+      "subop_w_in_bytes": 26841811636,
+      "subop_w_latency": { "avgcount": 1074774,
+          "sum": 745.509160000},
+      "subop_pull": 0,
+      "subop_pull_latency": { "avgcount": 0,
+          "sum": 0.000000000},
+      "subop_push": 0,
+      "subop_push_in_bytes": 0,
+      "subop_push_latency": { "avgcount": 0,
+          "sum": 0.000000000},
+      "pull": 0,
+      "push": 28,
+      "push_out_bytes": 103483392,
+      "push_in": 0,
+      "push_in_bytes": 0,
+      "recovery_ops": 15,
+      "loadavg": 202,
+      "buffer_bytes": 0,
+      "numpg": 18,
+      "numpg_primary": 8,
+      "numpg_replica": 10,
+      "numpg_stray": 0,
+      "heartbeat_to_peers": 10,
+      "heartbeat_from_peers": 0,
+      "map_messages": 7413,
+      "map_message_epochs": 9792,
+      "map_message_epoch_dups": 10105,
+      "messages_delayed_for_map": 83,
+      "stat_bytes": 102123175936,
+      "stat_bytes_used": 49961820160,
+      "stat_bytes_avail": 52161355776,
+      "copyfrom": 0,
+      "tier_promote": 0,
+      "tier_flush": 0,
+      "tier_flush_fail": 0,
+      "tier_try_flush": 0,
+      "tier_try_flush_fail": 0,
+      "tier_evict": 0,
+      "tier_whiteout": 0,
+      "tier_dirty": 230,
+      "tier_clean": 0,
+      "tier_delay": 0,
+      "agent_wake": 0,
+      "agent_skip": 0,
+      "agent_flush": 0,
+      "agent_evict": 0},
+  "recoverystate_perf": { "initial_latency": { "avgcount": 473,
+          "sum": 0.027207000},
+      "started_latency": { "avgcount": 1480,
+          "sum": 9854902.397648000},
+      "reset_latency": { "avgcount": 1953,
+          "sum": 0.096206000},
+      "start_latency": { "avgcount": 1953,
+          "sum": 0.059947000},
+      "primary_latency": { "avgcount": 765,
+          "sum": 4688922.186935000},
+      "peering_latency": { "avgcount": 704,
+          "sum": 1668.652135000},
+      "backfilling_latency": { "avgcount": 0,
+          "sum": 0.000000000},
+      "waitremotebackfillreserved_latency": { "avgcount": 0,
+          "sum": 0.000000000},
+      "waitlocalbackfillreserved_latency": { "avgcount": 0,
+          "sum": 0.000000000},
+      "notbackfilling_latency": { "avgcount": 0,
+          "sum": 0.000000000},
+      "repnotrecovering_latency": { "avgcount": 462,
+          "sum": 5158922.114600000},
+      "repwaitrecoveryreserved_latency": { "avgcount": 15,
+          "sum": 0.008275000},
+      "repwaitbackfillreserved_latency": { "avgcount": 1,
+          "sum": 0.000095000},
+      "RepRecovering_latency": { "avgcount": 16,
+          "sum": 2274.944727000},
+      "activating_latency": { "avgcount": 514,
+          "sum": 261.008520000},
+      "waitlocalrecoveryreserved_latency": { "avgcount": 20,
+          "sum": 0.175422000},
+      "waitremoterecoveryreserved_latency": { "avgcount": 20,
+          "sum": 0.682778000},
+      "recovering_latency": { "avgcount": 20,
+          "sum": 0.697551000},
+      "recovered_latency": { "avgcount": 511,
+          "sum": 0.011038000},
+      "clean_latency": { "avgcount": 503,
+          "sum": 4686961.154278000},
+      "active_latency": { "avgcount": 506,
+          "sum": 4687223.640464000},
+      "replicaactive_latency": { "avgcount": 446,
+          "sum": 5161197.078966000},
+      "stray_latency": { "avgcount": 794,
+          "sum": 4805.105128000},
+      "getinfo_latency": { "avgcount": 704,
+          "sum": 1138.477937000},
+      "getlog_latency": { "avgcount": 678,
+          "sum": 0.036393000},
+      "waitactingchange_latency": { "avgcount": 69,
+          "sum": 59.172893000},
+      "incomplete_latency": { "avgcount": 0,
+          "sum": 0.000000000},
+      "getmissing_latency": { "avgcount": 609,
+          "sum": 0.012288000},
+      "waitupthru_latency": { "avgcount": 576,
+          "sum": 530.106999000}},
+  "throttle-filestore_bytes": { "val": 0,
+      "max": 0,
+      "get": 0,
+      "get_sum": 0,
+      "get_or_fail_fail": 0,
+      "get_or_fail_success": 0,
+      "take": 0,
+      "take_sum": 0,
+      "put": 0,
+      "put_sum": 0,
+      "wait": { "avgcount": 0,
+          "sum": 0.000000000}},
+  "throttle-filestore_ops": { "val": 0,
+      "max": 0,
+      "get": 0,
+      "get_sum": 0,
+      "get_or_fail_fail": 0,
+      "get_or_fail_success": 0,
+      "take": 0,
+      "take_sum": 0,
+      "put": 0,
+      "put_sum": 0,
+      "wait": { "avgcount": 0,
+          "sum": 0.000000000}},
+  "throttle-msgr_dispatch_throttler-client": { "val": 0,
+      "max": 104857600,
+      "get": 130730,
+      "get_sum": 1246039872,
+      "get_or_fail_fail": 0,
+      "get_or_fail_success": 0,
+      "take": 0,
+      "take_sum": 0,
+      "put": 130730,
+      "put_sum": 1246039872,
+      "wait": { "avgcount": 0,
+          "sum": 0.000000000}},
+  "throttle-msgr_dispatch_throttler-cluster": { "val": 0,
+      "max": 104857600,
+      "get": 1108033,
+      "get_sum": 71277949992,
+      "get_or_fail_fail": 0,
+      "get_or_fail_success": 0,
+      "take": 0,
+      "take_sum": 0,
+      "put": 1108033,
+      "put_sum": 71277949992,
+      "wait": { "avgcount": 0,
+          "sum": 0.000000000}},
+  "throttle-msgr_dispatch_throttler-hb_back_server": { "val": 0,
+      "max": 104857600,
+      "get": 18320575,
+      "get_sum": 861067025,
+      "get_or_fail_fail": 0,
+      "get_or_fail_success": 0,
+      "take": 0,
+      "take_sum": 0,
+      "put": 18320575,
+      "put_sum": 861067025,
+      "wait": { "avgcount": 0,
+          "sum": 0.000000000}},
+  "throttle-msgr_dispatch_throttler-hb_front_server": { "val": 0,
+      "max": 104857600,
+      "get": 18320575,
+      "get_sum": 861067025,
+      "get_or_fail_fail": 0,
+      "get_or_fail_success": 0,
+      "take": 0,
+      "take_sum": 0,
+      "put": 18320575,
+      "put_sum": 861067025,
+      "wait": { "avgcount": 0,
+          "sum": 0.000000000}},
+  "throttle-msgr_dispatch_throttler-hbclient": { "val": 0,
+      "max": 104857600,
+      "get": 40479394,
+      "get_sum": 1902531518,
+      "get_or_fail_fail": 0,
+      "get_or_fail_success": 0,
+      "take": 0,
+      "take_sum": 0,
+      "put": 40479394,
+      "put_sum": 1902531518,
+      "wait": { "avgcount": 0,
+          "sum": 0.000000000}},
+  "throttle-msgr_dispatch_throttler-ms_objecter": { "val": 0,
+      "max": 104857600,
+      "get": 0,
+      "get_sum": 0,
+      "get_or_fail_fail": 0,
+      "get_or_fail_success": 0,
+      "take": 0,
+      "take_sum": 0,
+      "put": 0,
+      "put_sum": 0,
+      "wait": { "avgcount": 0,
+          "sum": 0.000000000}},
+  "throttle-objecter_bytes": { "val": 0,
+      "max": 104857600,
+      "get": 0,
+      "get_sum": 0,
+      "get_or_fail_fail": 0,
+      "get_or_fail_success": 0,
+      "take": 0,
+      "take_sum": 0,
+      "put": 0,
+      "put_sum": 0,
+      "wait": { "avgcount": 0,
+          "sum": 0.000000000}},
+  "throttle-objecter_ops": { "val": 0,
+      "max": 1024,
+      "get": 0,
+      "get_sum": 0,
+      "get_or_fail_fail": 0,
+      "get_or_fail_success": 0,
+      "take": 0,
+      "take_sum": 0,
+      "put": 0,
+      "put_sum": 0,
+      "wait": { "avgcount": 0,
+          "sum": 0.000000000}},
+  "throttle-osd_client_bytes": { "val": 0,
+      "max": 524288000,
+      "get": 24241,
+      "get_sum": 1241992581,
+      "get_or_fail_fail": 0,
+      "get_or_fail_success": 0,
+      "take": 0,
+      "take_sum": 0,
+      "put": 25958,
+      "put_sum": 1241992581,
+      "wait": { "avgcount": 0,
+          "sum": 0.000000000}},
+  "throttle-osd_client_messages": { "val": 0,
+      "max": 100,
+      "get": 49214,
+      "get_sum": 49214,
+      "get_or_fail_fail": 0,
+      "get_or_fail_success": 0,
+      "take": 0,
+      "take_sum": 0,
+      "put": 49214,
+      "put_sum": 49214,
+      "wait": { "avgcount": 0,
+          "sum": 0.000000000}}}
+`

plugins/inputs/chrony/README.md

@@ -0,0 +1,92 @@
+# chrony Input Plugin
+
+Get standard chrony metrics, requires chronyc executable.
+
+Below is the documentation of the various headers returned by `chronyc tracking`.
+
+- Reference ID - This is the refid and name (or IP address) if available, of the
+server to which the computer is currently synchronised. If this is 127.127.1.1
+it means the computer is not synchronised to any external source and that you
+have the ‘local’ mode operating (via the local command in chronyc (see section local),
+or the local directive in the ‘/etc/chrony.conf’ file (see section local)).
+- Stratum - The stratum indicates how many hops away from a computer with an attached
+reference clock we are. Such a computer is a stratum-1 computer, so the computer in the
+example is two hops away (i.e. a.b.c is a stratum-2 and is synchronised from a stratum-1).
+- Ref time - This is the time (UTC) at which the last measurement from the reference
+source was processed.
+- System time - In normal operation, chronyd never steps the system clock, because any
+jump in the timescale can have adverse consequences for certain application programs.
+Instead, any error in the system clock is corrected by slightly speeding up or slowing
+down the system clock until the error has been removed, and then returning to the system
+clock’s normal speed. A consequence of this is that there will be a period when the
+system clock (as read by other programs using the gettimeofday() system call, or by the
+date command in the shell) will be different from chronyd's estimate of the current true
+time (which it reports to NTP clients when it is operating in server mode). The value
+reported on this line is the difference due to this effect.
+- Last offset - This is the estimated local offset on the last clock update.
+- RMS offset - This is a long-term average of the offset value.
+- Frequency - The ‘frequency’ is the rate by which the system’s clock would be
+wrong if chronyd was not correcting it. It is expressed in ppm (parts per million).
+For example, a value of 1ppm would mean that when the system’s clock thinks it has
+advanced 1 second, it has actually advanced by 1.000001 seconds relative to true time.
+- Residual freq - This shows the ‘residual frequency’ for the currently selected
+reference source. This reflects any difference between what the measurements from the
+reference source indicate the frequency should be and the frequency currently being used.
+The reason this is not always zero is that a smoothing procedure is applied to the
+frequency. Each time a measurement from the reference source is obtained and a new
+residual frequency computed, the estimated accuracy of this residual is compared with the
+estimated accuracy (see ‘skew’ next) of the existing frequency value. A weighted average
+is computed for the new frequency, with weights depending on these accuracies. If the
+measurements from the reference source follow a consistent trend, the residual will be
+driven to zero over time.
+- Skew - This is the estimated error bound on the frequency.
+- Root delay - This is the total of the network path delays to the stratum-1 computer
+from which the computer is ultimately synchronised. In certain extreme situations, this
+value can be negative. (This can arise in a symmetric peer arrangement where the computers’
+frequencies are not tracking each other and the network delay is very short relative to the
+turn-around time at each computer.)
+- Root dispersion - This is the total dispersion accumulated through all the computers
+back to the stratum-1 computer from which the computer is ultimately synchronised.
+Dispersion is due to system clock resolution, statistical measurement variations etc.
+- Leap status - This is the leap status, which can be Normal, Insert second,
+Delete second or Not synchronised.
+
+### Configuration:
+
+```toml
+# Get standard chrony metrics, requires chronyc executable.
+[[inputs.chrony]]
+  ## If true, chronyc tries to perform a DNS lookup for the time server.
+  # dns_lookup = false
+```
+
+### Measurements & Fields:
+
+- chrony
+    - last_offset (float, seconds)
+    - rms_offset (float, seconds)
+    - frequency (float, ppm)
+    - residual_freq (float, ppm)
+    - skew (float, ppm)
+    - root_delay (float, seconds)
+    - root_dispersion (float, seconds)
+    - update_interval (float, seconds)
+
+### Tags:
+
+- All measurements have the following tags:
+    - reference_id
+    - stratum
+    - leap_status
+
+### Example Output:
+
+```
+$ telegraf -config telegraf.conf -input-filter chrony -test
+* Plugin: chrony, Collection 1
+> chrony,leap_status=normal,reference_id=192.168.1.1,stratum=3 frequency=-35.657,last_offset=-0.000013616,residual_freq=-0,rms_offset=0.000027073,root_delay=0.000644,root_dispersion=0.003444,skew=0.001,update_interval=1031.2 1463750789687639161
+```
+
+
+
+

plugins/inputs/chrony/chrony.go

@@ -0,0 +1,129 @@
+// +build linux
+
+package chrony
+
+import (
+	"errors"
+	"fmt"
+	"os/exec"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/internal"
+	"github.com/influxdata/telegraf/plugins/inputs"
+)
+
+var (
+	execCommand = exec.Command // execCommand is used to mock commands in tests.
+)
+
+type Chrony struct {
+	DNSLookup bool `toml:"dns_lookup"`
+	path      string
+}
+
+func (*Chrony) Description() string {
+	return "Get standard chrony metrics, requires chronyc executable."
+}
+
+func (*Chrony) SampleConfig() string {
+	return `
+  ## If true, chronyc tries to perform a DNS lookup for the time server.
+  # dns_lookup = false
+  `
+}
+
+func (c *Chrony) Gather(acc telegraf.Accumulator) error {
+	if len(c.path) == 0 {
+		return errors.New("chronyc not found: verify that chrony is installed and that chronyc is in your PATH")
+	}
+
+	flags := []string{}
+	if !c.DNSLookup {
+		flags = append(flags, "-n")
+	}
+	flags = append(flags, "tracking")
+
+	cmd := execCommand(c.path, flags...)
+	out, err := internal.CombinedOutputTimeout(cmd, time.Second*5)
+	if err != nil {
+		return fmt.Errorf("failed to run command %s: %s - %s", strings.Join(cmd.Args, " "), err, string(out))
+	}
+	fields, tags, err := processChronycOutput(string(out))
+	if err != nil {
+		return err
+	}
+	acc.AddFields("chrony", fields, tags)
+	return nil
+}
+
+// processChronycOutput takes in a string output from the chronyc command, like:
+//
+//     Reference ID    : 192.168.1.22 (ntp.example.com)
+//     Stratum         : 3
+//     Ref time (UTC)  : Thu May 12 14:27:07 2016
+//     System time     : 0.000020390 seconds fast of NTP time
+//     Last offset     : +0.000012651 seconds
+//     RMS offset      : 0.000025577 seconds
+//     Frequency       : 16.001 ppm slow
+//     Residual freq   : -0.000 ppm
+//     Skew            : 0.006 ppm
+//     Root delay      : 0.001655 seconds
+//     Root dispersion : 0.003307 seconds
+//     Update interval : 507.2 seconds
+//     Leap status     : Normal
+//
+// The value on the left side of the colon is used as field name, if the first field on
+// the right side is a float. If it cannot be parsed as float, it is a tag name.
+//
+// Ref time is ignored and all names are converted to snake case.
+//
+// It returns (<fields>, <tags>)
+func processChronycOutput(out string) (map[string]interface{}, map[string]string, error) {
+	tags := map[string]string{}
+	fields := map[string]interface{}{}
+	lines := strings.Split(strings.TrimSpace(out), "\n")
+	for _, line := range lines {
+		stats := strings.Split(line, ":")
+		if len(stats) < 2 {
+			return nil, nil, fmt.Errorf("unexpected output from chronyc, expected ':' in %s", out)
+		}
+		name := strings.ToLower(strings.Replace(strings.TrimSpace(stats[0]), " ", "_", -1))
+		// ignore reference time
+		if strings.Contains(name, "time") {
+			continue
+		}
+		valueFields := strings.Fields(stats[1])
+		if len(valueFields) == 0 {
+			return nil, nil, fmt.Errorf("unexpected output from chronyc: %s", out)
+		}
+		if strings.Contains(strings.ToLower(name), "stratum") {
+			tags["stratum"] = valueFields[0]
+			continue
+		}
+		value, err := strconv.ParseFloat(valueFields[0], 64)
+		if err != nil {
+			tags[name] = strings.ToLower(valueFields[0])
+			continue
+		}
+		if strings.Contains(stats[1], "slow") {
+			value = -value
+		}
+		fields[name] = value
+	}
+
+	return fields, tags, nil
+}
+
+func init() {
+	c := Chrony{}
+	path, _ := exec.LookPath("chronyc")
+	if len(path) > 0 {
+		c.path = path
+	}
+	inputs.Add("chrony", func() telegraf.Input {
+		return &c
+	})
+}

plugins/inputs/chrony/chrony_notlinux.go

@@ -0,0 +1,3 @@
+// +build !linux
+
+package chrony

plugins/inputs/chrony/chrony_test.go

@@ -0,0 +1,109 @@
+// +build linux
+
+package chrony
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"testing"
+
+	"github.com/influxdata/telegraf/testutil"
+)
+
+func TestGather(t *testing.T) {
+	c := Chrony{
+		path: "chronyc",
+	}
+	// overwriting exec commands with mock commands
+	execCommand = fakeExecCommand
+	defer func() { execCommand = exec.Command }()
+	var acc testutil.Accumulator
+
+	err := c.Gather(&acc)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	tags := map[string]string{
+		"reference_id": "192.168.1.22",
+		"leap_status":  "normal",
+		"stratum":      "3",
+	}
+	fields := map[string]interface{}{
+		"last_offset":     0.000012651,
+		"rms_offset":      0.000025577,
+		"frequency":       -16.001,
+		"residual_freq":   0.0,
+		"skew":            0.006,
+		"root_delay":      0.001655,
+		"root_dispersion": 0.003307,
+		"update_interval": 507.2,
+	}
+
+	acc.AssertContainsTaggedFields(t, "chrony", fields, tags)
+
+	// test with dns lookup
+	c.DNSLookup = true
+	err = c.Gather(&acc)
+	if err != nil {
+		t.Fatal(err)
+	}
+	acc.AssertContainsTaggedFields(t, "chrony", fields, tags)
+
+}
+
+// fackeExecCommand is a helper function that mock
+// the exec.Command call (and call the test binary)
+func fakeExecCommand(command string, args ...string) *exec.Cmd {
+	cs := []string{"-test.run=TestHelperProcess", "--", command}
+	cs = append(cs, args...)
+	cmd := exec.Command(os.Args[0], cs...)
+	cmd.Env = []string{"GO_WANT_HELPER_PROCESS=1"}
+	return cmd
+}
+
+// TestHelperProcess isn't a real test. It's used to mock exec.Command
+// For example, if you run:
+// GO_WANT_HELPER_PROCESS=1 go test -test.run=TestHelperProcess -- chrony tracking
+// it returns below mockData.
+func TestHelperProcess(t *testing.T) {
+	if os.Getenv("GO_WANT_HELPER_PROCESS") != "1" {
+		return
+	}
+
+	lookup := "Reference ID    : 192.168.1.22 (ntp.example.com)\n"
+	noLookup := "Reference ID    : 192.168.1.22 (192.168.1.22)\n"
+	mockData := `Stratum         : 3
+Ref time (UTC)  : Thu May 12 14:27:07 2016
+System time     : 0.000020390 seconds fast of NTP time
+Last offset     : +0.000012651 seconds
+RMS offset      : 0.000025577 seconds
+Frequency       : 16.001 ppm slow
+Residual freq   : -0.000 ppm
+Skew            : 0.006 ppm
+Root delay      : 0.001655 seconds
+Root dispersion : 0.003307 seconds
+Update interval : 507.2 seconds
+Leap status     : Normal
+`
+
+	args := os.Args
+
+	// Previous arguments are tests stuff, that looks like :
+	// /tmp/go-build970079519/…/_test/integration.test -test.run=TestHelperProcess --
+	cmd, args := args[3], args[4:]
+
+	if cmd == "chronyc" {
+		if args[0] == "tracking" {
+			fmt.Fprint(os.Stdout, lookup+mockData)
+		} else {
+			fmt.Fprint(os.Stdout, noLookup+mockData)
+		}
+	} else {
+		fmt.Fprint(os.Stdout, "command not found")
+		os.Exit(1)
+
+	}
+	os.Exit(0)
+}