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README.md

Telegraf - A native agent for InfluxDB Circle CI

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.

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 plugins that Telegraf supports. See the contributing guide for instructions on writing new plugins.

Installation:

Linux deb and rpm packages:

Latest:

Package instructions:
  • Telegraf binary is installed in /opt/telegraf/telegraf
  • Telegraf daemon configuration file is in /etc/opt/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:

Latest:

Binary instructions:

These are standalone binaries that can be unpacked and executed on any linux system. They can be unpacked and renamed in a location such as /usr/local/bin for convenience. A config file will need to be generated, see "How to use it" below.

OSX via Homebrew:

brew update
brew install telegraf

Version 0.3.0 Beta

Version 0.3.0 will introduce many new breaking changes to Telegraf. For starters, plugin measurements will be aggregated into fields. This means that there will no longer be a cpu_usage_idle measurement, there will be a cpu measurement with a usage_idle field.

There will also be config file changes, meaning that your 0.2.x Telegraf config files will no longer work properly. It is recommended that you use the -sample-config flag to generate a new config file to see what the changes are. You can also read the 0.3.0 configuration guide to see some of the new features and options available.

You can read more about the justifications for the aggregated measurements here, and a more detailed breakdown of the work here. Once we're closer to a full release, there will be a detailed blog post explaining all the changes.

From Source:

Telegraf manages dependencies via gdm, which gets installed via the Makefile if you don't have it already. You also must build with golang version 1.4+.

  1. Install Go
  2. Setup your GOPATH
  3. Run go get github.com/influxdb/telegraf
  4. Run cd $GOPATH/src/github.com/influxdb/telegraf
  5. Run make

How to use it:

  • Run telegraf -sample-config > telegraf.conf to create an initial configuration.
  • Or run telegraf -sample-config -filter cpu:mem -outputfilter influxdb > telegraf.conf. to create a config file with only CPU and memory plugins defined, and InfluxDB 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

Telegraf has a few options you can configure under the agent section of the config.

  • hostname: The hostname is passed as a tag. By default this will be 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.

Configuration

See the configuration guide for a rundown of the more advanced configuration options.

Supported Plugins

You can view usage instructions for each plugin by running telegraf -usage <pluginname>.

Telegraf currently has support for collecting metrics from:

  • aerospike
  • apache
  • bcache
  • disque
  • elasticsearch
  • exec (generic JSON-emitting executable plugin)
  • haproxy
  • httpjson (generic JSON-emitting http service plugin)
  • influxdb
  • jolokia
  • leofs
  • lustre2
  • mailchimp
  • memcached
  • mongodb
  • mysql
  • nginx
  • phpfpm
  • ping
  • postgresql
  • procstat
  • prometheus
  • puppetagent
  • rabbitmq
  • redis
  • rethinkdb
  • twemproxy
  • zfs
  • zookeeper
  • system
    • cpu
    • mem
    • net
    • netstat
    • disk
    • diskio
    • swap

Supported Service Plugins

Telegraf can collect metrics via the following services:

  • statsd
  • kafka_consumer

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.

Supported Outputs

  • influxdb
  • nsq
  • kafka
  • datadog
  • opentsdb
  • amqp (rabbitmq)
  • mqtt
  • librato
  • prometheus
  • amon
  • riemann

Contributing

Please see the contributing guide for details on contributing a plugin or output to Telegraf.