ZooKeeper

ZooKeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services.

The Librato Agent allows you to easily monitor ZooKeeper’s health and performance. We use collectd’s native ZooKeeper plugin to gather metrics from your running ZooKeeper instance(s).

Installation

The ZooKeeper integration depends on the Librato Agent. If you haven’t already, you will first need to install the Librato Agent. Once this is complete, select the ZooKeeper icon in the integrations catalogue.

Toggle the Enabled switch to activate the ZooKeeper integration on your Librato account and create the preconfigured ZooKeeper Space.

At this point your integration is complete and any ZooKeeper metrics associated with this integration will be allowed through your Librato Agent service-side filters.

Plugin Configuration

By default, ZooKeeper listens on localhost port 2181. If necessary, this can be adjusted in your /opt/collectd/etc/collectd.conf.d/zookeeper.conf file.

LoadPlugin zookeeper
<Plugin "zookeeper">
  Host "127.0.0.1"
  Port "2181"
</Plugin>

Note: You must restart the agent after any changes to your Librato Agent configuration files.

$ sudo service collectd restart

At this point you should begin seeing librato.zookeeper.* metrics in your Librato account.

ZooKeeper Workspace

Visit your preconfigured Space to observe your new metrics as they stream in. You can use our dynamic source field at the top to filter your view to a subset of metric sources. For example, you may want to isolate the view to a specific tier of web servers or even to an individual machine that is behaving badly.

FAQ

For specific answers to Librato Agent questions check out our Librato Agent FAQ.

Let us know what you think when you take this for a spin. We would love to incorporate your feedback and any new dashboards you design into the ongoing development of this key server monitoring technology.