0.3.0: update README and documentation
This commit is contained in:
Cameron Sparr
parent
9c5db1057d
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7169aedf79
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@ -11,8 +11,11 @@ directory.
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- **breaking change** `jolokia` plugin: must use global tag/drop/pass parameters
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for configuration.
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- **breaking change** `twemproxy` plugin: `prefix` option removed.
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- **breaking change** `procstat` cpu measurements are now prepended with `cpu_time_` instead of
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only `cpu_`
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- **breaking change** `procstat` cpu measurements are now prepended with `cpu_time_`
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instead of only `cpu_`
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- **breaking change** some command-line flags have been renamed to separate words.
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`-configdirectory` -> `-config-directory`, `-filter` -> `-input-filter`,
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`-outputfilter` -> `-output-filter`
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- The prometheus plugin schema has not been changed (measurements have not been
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aggregated).
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@ -9,7 +9,7 @@ To generate a file with specific inputs and outputs, you can use the
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`-input-filter` and `-output-filter` flags, like this:
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`telegraf -sample-config -input-filter cpu:mem:net:swap -output-filter influxdb:kafka`
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## Plugin Configuration
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## Input Configuration
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There are some configuration options that are configurable per plugin:
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@ -22,7 +22,7 @@ There are some configuration options that are configurable per plugin:
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global interval, but if one particular plugin should be run less or more often,
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you can configure that here.
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### Plugin Filters
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### Input Filters
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There are also filters that can be configured per plugin:
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@ -36,7 +36,7 @@ match against the tag name, and if it matches the measurement is emitted.
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* **tagdrop**: The inverse of tagpass. If a tag matches, the measurement is not
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emitted. This is tested on measurements that have passed the tagpass test.
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### Plugin Configuration Examples
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### Input Configuration Examples
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This is a full working config that will output CPU data to an InfluxDB instance
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at 192.168.59.103:8086, tagging measurements with dc="denver-1". It will output
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@ -57,8 +57,8 @@ fields which begin with `time_`.
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database = "telegraf" # required.
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precision = "s"
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# PLUGINS
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[plugins]
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# INPUTS
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[inputs]
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[[inputs.cpu]]
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percpu = true
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totalcpu = false
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@ -66,10 +66,10 @@ fields which begin with `time_`.
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drop = ["time_*"]
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```
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### Plugin Config: tagpass and tagdrop
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### Input Config: tagpass and tagdrop
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```toml
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[plugins]
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[inputs]
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[[inputs.cpu]]
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percpu = true
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totalcpu = false
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@ -88,7 +88,7 @@ fields which begin with `time_`.
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path = [ "/opt", "/home*" ]
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```
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### Plugin Config: pass and drop
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### Input Config: pass and drop
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```toml
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# Drop all metrics for guest & steal CPU usage
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@ -102,7 +102,7 @@ fields which begin with `time_`.
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pass = ["inodes*"]
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```
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### Plugin config: prefix, suffix, and override
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### Input config: prefix, suffix, and override
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This plugin will emit measurements with the name `cpu_total`
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@ -122,7 +122,7 @@ This will emit measurements with the name `foobar`
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totalcpu = true
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```
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### Plugin config: tags
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### Input config: tags
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This plugin will emit measurements with two additional tags: `tag1=foo` and
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`tag2=bar`
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@ -136,10 +136,12 @@ This plugin will emit measurements with two additional tags: `tag1=foo` and
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tag2 = "bar"
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```
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### Multiple plugins of the same type
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### Multiple inputs of the same type
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Additional plugins (or outputs) of the same type can be specified,
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just define more instances in the config file:
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Additional inputs (or outputs) of the same type can be specified,
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just define more instances in the config file. It is highly recommended that
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you utilize `name_override`, `name_prefix`, or `name_suffix` config options
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to avoid measurement collisions:
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```toml
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[[inputs.cpu]]
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@ -149,6 +151,7 @@ just define more instances in the config file:
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[[inputs.cpu]]
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percpu = true
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totalcpu = false
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name_override = "percpu_usage"
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drop = ["cpu_time*"]
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```
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@ -158,8 +161,8 @@ Telegraf also supports specifying multiple output sinks to send data to,
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configuring each output sink is different, but examples can be
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found by running `telegraf -sample-config`.
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Outputs also support the same configurable options as plugins
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(pass, drop, tagpass, tagdrop), added in 0.2.4
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Outputs also support the same configurable options as inputs
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(pass, drop, tagpass, tagdrop)
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```toml
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[[outputs.influxdb]]
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61
README.md
61
README.md
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@ -1,23 +1,35 @@
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# Telegraf - A native agent for InfluxDB [](https://circleci.com/gh/influxdata/telegraf)
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# Telegraf [](https://circleci.com/gh/influxdata/telegraf)
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Telegraf is an agent written in Go for collecting metrics from the system it's
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running on, or from other services, and writing them into InfluxDB.
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running on, or from other services, and writing them into InfluxDB or other
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[outputs](https://github.com/influxdata/telegraf#supported-output-plugins).
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Design goals are to have a minimal memory footprint with a plugin system so
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that developers in the community can easily add support for collecting metrics
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from well known services (like Hadoop, Postgres, or Redis) and third party
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APIs (like Mailchimp, AWS CloudWatch, or Google Analytics).
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We'll eagerly accept pull requests for new plugins and will manage the set of
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plugins that Telegraf supports. See the
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[contributing guide](CONTRIBUTING.md) for instructions on
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writing new inputs.
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New input and output plugins are designed to be easy to contribute,
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we'll eagerly accept pull
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requests and will manage the set of plugins that Telegraf supports.
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See the [contributing guide](CONTRIBUTING.md) for instructions on writing
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new plugins.
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## Installation:
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NOTE: Telegraf 0.3.x is **not** backwards-compatible with previous versions of
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telegraf, both in the database layout and the configuration file. 0.2.x will
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continue to be supported, see below for download links.
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TODO: link to blog post about 0.3.x changes.
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### Linux deb and rpm packages:
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Latest:
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* http://get.influxdb.org/telegraf/telegraf_0.3.0_amd64.deb
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* http://get.influxdb.org/telegraf/telegraf-0.3.0-1.x86_64.rpm
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0.2.x:
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* http://get.influxdb.org/telegraf/telegraf_0.2.4_amd64.deb
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* http://get.influxdb.org/telegraf/telegraf-0.2.4-1.x86_64.rpm
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@ -33,6 +45,11 @@ controlled via `systemctl [action] telegraf`
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### Linux binaries:
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Latest:
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* http://get.influxdb.org/telegraf/telegraf_linux_amd64_0.3.0.tar.gz
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* http://get.influxdb.org/telegraf/telegraf_linux_386_0.3.0.tar.gz
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* http://get.influxdb.org/telegraf/telegraf_linux_arm_0.3.0.tar.gz
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0.2.x:
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* http://get.influxdb.org/telegraf/telegraf_linux_amd64_0.2.4.tar.gz
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* http://get.influxdb.org/telegraf/telegraf_linux_386_0.2.4.tar.gz
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* http://get.influxdb.org/telegraf/telegraf_linux_arm_0.2.4.tar.gz
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@ -51,32 +68,6 @@ brew update
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brew install telegraf
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```
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### Version 0.3.0 Beta
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Version 0.3.0 will introduce many new breaking changes to Telegraf. For starters,
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plugin measurements will be aggregated into fields. This means that there will no
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longer be a `cpu_usage_idle` measurement, there will be a `cpu` measurement with
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a `usage_idle` field.
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There will also be config file changes, meaning that your 0.2.x Telegraf config
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files will no longer work properly. It is recommended that you use the
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`-sample-config` flag to generate a new config file to see what the changes are.
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You can also read the
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[0.3.0 configuration guide](https://github.com/influxdb/telegraf/blob/0.3.0/CONFIGURATION.md)
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to see some of the new features and options available.
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You can read more about the justifications for the aggregated measurements
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[here](https://github.com/influxdb/telegraf/issues/152), and a more detailed
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breakdown of the work [here](https://github.com/influxdb/telegraf/pull/437).
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Once we're closer to a full release, there will be a detailed blog post
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explaining all the changes.
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* http://get.influxdb.org/telegraf/telegraf_0.3.0-beta2_amd64.deb
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* http://get.influxdb.org/telegraf/telegraf-0.3.0_beta2-1.x86_64.rpm
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* http://get.influxdb.org/telegraf/telegraf_linux_amd64_0.3.0-beta2.tar.gz
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* http://get.influxdb.org/telegraf/telegraf_linux_386_0.3.0-beta2.tar.gz
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* http://get.influxdb.org/telegraf/telegraf_linux_arm_0.3.0-beta2.tar.gz
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### From Source:
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Telegraf manages dependencies via [gdm](https://github.com/sparrc/gdm),
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@ -121,7 +112,7 @@ InfluxDB.
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See the [configuration guide](CONFIGURATION.md) for a rundown of the more advanced
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configuration options.
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## Supported Plugins
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## Supported Input Plugins
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**You can view usage instructions for each plugin by running**
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`telegraf -usage <pluginname>`.
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@ -166,7 +157,7 @@ Telegraf currently has support for collecting metrics from:
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* diskio
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* swap
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## Supported Service Plugins
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## Supported Input Service Plugins
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Telegraf can collect metrics via the following services:
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@ -176,7 +167,7 @@ Telegraf can collect metrics via the following services:
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We'll be adding support for many more over the coming months. Read on if you
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want to add support for another service or third-party API.
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## Supported Outputs
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## Supported Output Plugins
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* influxdb
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* nsq
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@ -31,43 +31,50 @@ var fOutputFilters = flag.String("output-filter", "",
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var fUsage = flag.String("usage", "",
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"print usage for a plugin, ie, 'telegraf -usage mysql'")
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var fInputFiltersLegacy = flag.String("filter", "",
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"filter the plugins to enable, separator is :")
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var fOutputFiltersLegacy = flag.String("outputfilter", "",
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"filter the outputs to enable, separator is :")
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var fConfigDirectoryLegacy = flag.String("configdirectory", "",
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"directory containing additional *.conf files")
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// Telegraf version
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// -ldflags "-X main.Version=`git describe --always --tags`"
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var Version string
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const usage = `Telegraf, The plugin-driven server agent for reporting metrics into InfluxDB
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const usage = `Telegraf, The plugin-driven server agent for collecting and reporting metrics.
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Usage:
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telegraf <flags>
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telegraf <flags>
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The flags are:
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-config <file> configuration file to load
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-test gather metrics once, print them to stdout, and exit
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-sample-config print out full sample configuration to stdout
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-config-directory directory containing additional *.conf files
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-input-filter filter the input plugins to enable, separator is :
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-output-filter filter the output plugins to enable, separator is :
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-usage print usage for a plugin, ie, 'telegraf -usage mysql'
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-version print the version to stdout
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-config <file> configuration file to load
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-test gather metrics once, print them to stdout, and exit
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-sample-config print out full sample configuration to stdout
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-config-directory directory containing additional *.conf files
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-input-filter filter the input plugins to enable, separator is :
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-output-filter filter the output plugins to enable, separator is :
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-usage print usage for a plugin, ie, 'telegraf -usage mysql'
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-version print the version to stdout
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Examples:
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# generate a telegraf config file:
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telegraf -sample-config > telegraf.conf
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# generate a telegraf config file:
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telegraf -sample-config > telegraf.conf
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# generate a telegraf config file with only cpu input and influxdb output enabled
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telegraf -sample-config -input-filter cpu -output-filter influxdb
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# generate config with only cpu input & influxdb output plugins defined
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telegraf -sample-config -input-filter cpu -output-filter influxdb
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# run a single telegraf collection, outputting metrics to stdout
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telegraf -config telegraf.conf -test
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# run a single telegraf collection, outputing metrics to stdout
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telegraf -config telegraf.conf -test
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# run telegraf with all plugins defined in config file
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telegraf -config telegraf.conf
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# run telegraf with all plugins defined in config file
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telegraf -config telegraf.conf
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# run telegraf, enabling only the cpu and memory inputs and influxdb output
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telegraf -config telegraf.conf -input-filter cpu:mem -output-filter influxdb
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# run telegraf, enabling the cpu & memory input, and influxdb output plugins
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telegraf -config telegraf.conf -input-filter cpu:mem -output-filter influxdb
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`
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func main() {
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@ -79,12 +86,20 @@ func main() {
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}
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var inputFilters []string
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if *fInputFiltersLegacy != "" {
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inputFilter := strings.TrimSpace(*fInputFiltersLegacy)
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inputFilters = strings.Split(":"+inputFilter+":", ":")
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}
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if *fInputFilters != "" {
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inputFilter := strings.TrimSpace(*fInputFilters)
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inputFilters = strings.Split(":"+inputFilter+":", ":")
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}
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var outputFilters []string
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if *fOutputFiltersLegacy != "" {
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outputFilter := strings.TrimSpace(*fOutputFiltersLegacy)
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outputFilters = strings.Split(":"+outputFilter+":", ":")
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}
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if *fOutputFilters != "" {
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outputFilter := strings.TrimSpace(*fOutputFilters)
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outputFilters = strings.Split(":"+outputFilter+":", ":")
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@ -129,6 +144,13 @@ func main() {
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return
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}
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if *fConfigDirectoryLegacy != "" {
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err = c.LoadDirectory(*fConfigDirectoryLegacy)
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if err != nil {
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log.Fatal(err)
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}
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}
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if *fConfigDirectory != "" {
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err = c.LoadDirectory(*fConfigDirectory)
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if err != nil {
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