189 lines
5.5 KiB
Markdown
189 lines
5.5 KiB
Markdown
# 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 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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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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##### Package instructions:
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* Telegraf binary is installed in `/opt/telegraf/telegraf`
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* Telegraf daemon configuration file is in `/etc/opt/telegraf/telegraf.conf`
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* On sysv systems, the telegraf daemon can be controlled via
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`service telegraf [action]`
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* On systemd systems (such as Ubuntu 15+), the telegraf daemon can be
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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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##### Binary instructions:
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These are standalone binaries that can be unpacked and executed on any linux
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system. They can be unpacked and renamed in a location such as
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`/usr/local/bin` for convenience. A config file will need to be generated,
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see "How to use it" below.
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### OSX via Homebrew:
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```
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brew update
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brew install telegraf
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```
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### From Source:
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Telegraf manages dependencies via [gdm](https://github.com/sparrc/gdm),
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which gets installed via the Makefile
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if you don't have it already. You also must build with golang version 1.4+.
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1. [Install Go](https://golang.org/doc/install)
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2. [Setup your GOPATH](https://golang.org/doc/code.html#GOPATH)
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3. Run `go get github.com/influxdb/telegraf`
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4. Run `cd $GOPATH/src/github.com/influxdb/telegraf`
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5. Run `make`
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### How to use it:
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* Run `telegraf -sample-config > telegraf.conf` to create an initial configuration.
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* Or run `telegraf -sample-config -input-filter cpu:mem -output-filter influxdb > telegraf.conf`.
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to create a config file with only CPU and memory plugins defined, and InfluxDB
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output defined.
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* Edit the configuration to match your needs.
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* Run `telegraf -config telegraf.conf -test` to output one full measurement
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sample to STDOUT. NOTE: you may want to run as the telegraf user if you are using
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the linux packages `sudo -u telegraf telegraf -config telegraf.conf -test`
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* Run `telegraf -config telegraf.conf` to gather and send metrics to configured outputs.
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* Run `telegraf -config telegraf.conf -input-filter system:swap`.
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to run telegraf with only the system & swap plugins defined in the config.
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## Telegraf Options
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Telegraf has a few options you can configure under the `agent` section of the
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config.
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* **hostname**: The hostname is passed as a tag. By default this will be
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the value returned by `hostname` on the machine running Telegraf.
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You can override that value here.
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* **interval**: How often to gather metrics. Uses a simple number +
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unit parser, e.g. "10s" for 10 seconds or "5m" for 5 minutes.
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* **debug**: Set to true to gather and send metrics to STDOUT as well as
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InfluxDB.
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## Configuration
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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 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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Telegraf currently has support for collecting metrics from:
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* aerospike
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* apache
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* bcache
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* disque
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* elasticsearch
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* exec (generic JSON-emitting executable plugin)
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* haproxy
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* httpjson (generic JSON-emitting http service plugin)
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* influxdb
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* jolokia
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* leofs
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* lustre2
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* mailchimp
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* memcached
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* mongodb
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* mysql
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* nginx
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* phpfpm
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* ping
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* postgresql
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* procstat
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* prometheus
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* puppetagent
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* rabbitmq
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* redis
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* rethinkdb
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* twemproxy
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* zfs
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* zookeeper
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* system
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* cpu
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* mem
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* net
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* netstat
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* disk
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* diskio
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* swap
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## Supported Input Service Plugins
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Telegraf can collect metrics via the following services:
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* statsd
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* kafka_consumer
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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 Output Plugins
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* influxdb
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* nsq
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* kafka
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* datadog
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* opentsdb
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* amqp (rabbitmq)
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* mqtt
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* librato
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* prometheus
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* amon
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* riemann
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## Contributing
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Please see the
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[contributing guide](CONTRIBUTING.md)
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for details on contributing a plugin or output to Telegraf.
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