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Daniel Nelson 9ba023fd67
[inputs/diskio] Fix how major and minor identifiers of block devices are read. (#5566) 
* Fix how major and minor identifiers of block devices are read.

The current implementation assure that the major and the minor are
coded on one byte. But they are not:

```
brw-rw----  1 root disk    252, 290 Feb 25 11:36 dm-290
```

290 as minor in this example is over 1 byte.

So after wondering why all my devices iops weren't correctly stored,
I found out that several points were added for some disks. For `dm-290`
it was overriding `252:34`, instead of getting udev stats for `252:290`.

The solution is here:
https://sites.uclouvain.be/SystInfo/usr/include/sys/sysmacros.h.html

The implementation is directly taken from this, fixing my bug.

* Use unix.Major/unix.Minor instead of custom implementation

* [diskio] Force type of stat.Rdev uint64 for mipsle compatibility

For most platforms, stat.Rdev is already a uint64 so this is without any effect
for linux,mipsle, unix.Stat_t.Rdev is a uint32, but the way to compute major and minor doesn't change, casting the uint32 has no impact either
 		2019-03-22 14:03:48 -07:00
.circleci Exclude dep check on windows CI 2019-03-05 10:42:25 -08:00
.github Remove combined issue template 2018-05-07 11:43:23 -07:00
agent Fix open error handling in file output (#5540) 2019-03-22 13:59:30 -07:00
cmd/telegraf Log warning when wireless plugin is used on unsupported platform (#4986) 2018-11-15 15:45:56 -08:00
docs Remove unused dependencies 2019-03-04 17:17:35 -08:00
etc Update telegraf.conf 2019-03-11 12:32:45 -07:00
filter Add test for include/exclude filter (#5193) 2018-12-26 13:15:13 -08:00
internal Fix open error handling in file output (#5540) 2019-03-22 13:59:30 -07:00
logger Create log file in append mode (#5497) 2019-02-27 16:33:38 -08:00
metric Dereference pointer fields in metrics (#5525) 2019-03-04 13:34:52 -08:00
plugins [inputs/diskio] Fix how major and minor identifiers of block devices are read. (#5566) 2019-03-22 14:03:48 -07:00
scripts Add owned directories to rpm package (#5607) 2019-03-22 14:02:45 -07:00
selfstat Implement telegraf collecting stats on itself 2016-12-05 18:56:54 +00:00
testutil Add stackdriver input plugin (#5406) 2019-02-20 13:23:59 -08:00
.gitattributes update gitattributes for easier fork mngmnt 2016-06-01 16:18:17 +01:00
.gitignore Update vendoring to dep from gdm (#4314) 2018-06-19 11:55:38 -07:00
CHANGELOG.md Update changelog 2019-03-22 14:00:58 -07:00
CONTRIBUTING.md Remove outputs blocking inputs when output is slow (#4938) 2018-11-05 13:34:28 -08:00
Gopkg.lock Improve stability of appveyor builds (#5578) 2019-03-18 17:54:12 -07:00
Gopkg.toml Add kinesis input plugin (#5341) 2019-02-25 12:02:57 -08:00
LICENSE Update License (#4865) 2018-10-16 11:05:58 -07:00
Makefile Exclude dep check on windows CI 2019-03-05 10:42:25 -08:00
README.md Add a link to x509_cert plugin in the README (#5515) 2019-03-04 13:00:22 -08:00
accumulator.go Remove outputs blocking inputs when output is slow (#4938) 2018-11-05 13:34:28 -08:00
aggregator.go Refactor handling of MinMax functionality into RunningAggregator 2016-10-12 14:50:19 +01:00
appveyor.yml Improve stability of appveyor builds (#5578) 2019-03-18 17:54:12 -07:00
docker-compose.yml Add pgbouncer input plugin (#3918) 2018-08-01 16:44:10 -06:00
input.go Remove outputs blocking inputs when output is slow (#4938) 2018-11-05 13:34:28 -08:00
metric.go Remove outputs blocking inputs when output is slow (#4938) 2018-11-05 13:34:28 -08:00
output.go Remove outputs blocking inputs when output is slow (#4938) 2018-11-05 13:34:28 -08:00
processor.go Remove outputs blocking inputs when output is slow (#4938) 2018-11-05 13:34:28 -08:00

README.md

Telegraf Circle CI Docker pulls

Telegraf is an agent for collecting, processing, aggregating, and writing metrics.

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.

Telegraf is plugin-driven and has the concept of 4 distinct plugin types:

  1. Input Plugins collect metrics from the system, services, or 3rd party APIs
  2. Processor Plugins transform, decorate, and/or filter metrics
  3. Aggregator Plugins create aggregate metrics (e.g. mean, min, max, quantiles, etc.)
  4. Output Plugins write metrics to various destinations

New plugins are designed to be easy to contribute, we'll eagerly accept pull requests and will manage the set of plugins that Telegraf supports.

Contributing

There are many ways to contribute:

Installation:

You can download the binaries directly from the downloads page or from the releases section.

Ansible Role:

Ansible role: https://github.com/rossmcdonald/telegraf

From Source:

Telegraf requires golang version 1.9 or newer, the Makefile requires GNU make.

  1. Install Go >=1.9 (1.11 recommended)
  2. Install dep ==v0.5.0
  3. Download Telegraf source: 
    go get -d github.com/influxdata/telegraf
  4. Run make from the source directory 
    cd "$HOME/go/src/github.com/influxdata/telegraf"
make

Changelog

View the changelog for the latest updates and changes by version.

Nightly Builds

These builds are generated from the master branch:

How to use it:

See usage with:

telegraf --help

Generate a telegraf config file:

telegraf config > telegraf.conf

Generate config with only cpu input & influxdb output plugins defined:

telegraf --input-filter cpu --output-filter influxdb config

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

Documentation

Latest Release Documentation.

For documentation on the latest development code see the documentation index.

Input Plugins

Parsers

Serializers

Processor Plugins

Aggregator Plugins

Output Plugins