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CollectD ZooKeeper plugin

CollectD plugin for getting metrics and information from ZooKeeper servers. Based off the ZooKeeper monitoring script check_zookeeper.py.

Requires ZooKeeper 3.4.0 or greater in order to use the mntr four letter word command.

TODO: if support for earlier versions is needed, add srvr command, available in since 3.3.0, or stat (fetches extra uneeded data but available pre-3.3).

Install

  1. Checkout this repository somewhere on your system accessible by collectd; for example as /usr/share/collectd/collectd-zookeeper
  2. Configure the plugin (see below).
  3. Restart collectd.

Configuration

Add the following to your collectd config:

<LoadPlugin "python">
  Globals true
</LoadPlugin>

<Plugin python>
  ModulePath "/usr/share/collectd/collectd-zookeeper"
  Import "zk-collectd"

  <Module "zk-collectd">
    Hosts "localhost"
    Port 2181
  </Module>

  # You may have as many Module sections as you want
  <Module "zk-collectd">
    Hosts "localhost"
    Port 2182
    Instance "dev"
  </Module>
</Plugin>

Metrics

All metrics are reported with the plugin:zookeeper dimension. Additionally, if you specify an Instance in your Module configuration block, its value will be reported as the plugin_instance dimension.

zk_is_leader is a synthetic metric which is 0 if the contents of zk_server_state is 'follower'. zk_service_health is a synthetic metric which tracks if service is running and servicing requests.

License

Available under the terms of the Apache Software License v2. See LICENSE file for details.