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ZooKeeper mntr metricset

Stack

mntr Metricset fetches the data returned by the mntr admin keyword. It exposes the following metrics:

  • zookeeper.mntr.approximate_data_size: Approximate size of ZooKeeper data.
  • zookeeper.mntr.latency.avg: Average latency between ensemble hosts in milliseconds.
  • zookeeper.mntr.ephemerals_count: Number of ephemeral znodes.
  • zookeeper.mntr.followers: Number of followers seen by the current host.
  • zookeeper.mntr.max_file_descriptor_count: Maximum number of file descriptors allowed for the ZooKeeper process.
  • zookeeper.mntr.latency.max: Maximum latency in milliseconds.
  • zookeeper.mntr.latency.min: Minimum latency in milliseconds.
  • zookeeper.mntr.num_alive_connections: Number of connections to ZooKeeper that are currently alive.
  • zookeeper.mntr.open_file_descriptor_count: Number of file descriptors open by the ZooKeeper process.
  • zookeeper.mntr.outstanding_requests: Number of outstanding requests that need to be processed by the cluster.
  • zookeeper.mntr.packets.received: Number of ZooKeeper network packets received.
  • zookeeper.mntr.packets.sent: Number of ZooKeeper network packets sent.
  • zookeeper.mntr.pending_syncs: Number of pending syncs to carry out to ZooKeeper ensemble followers.
  • zookeeper.mntr.server_state: Role in the ZooKeeper ensemble.
  • zookeeper.mntr.synced_followers: Number of synced followers reported when a node server_state is leader.
  • zookeeper.mntr.version: Version and build string reported.
  • zookeeper.mntr.watch_count: Number of watches currently set on the local ZooKeeper process.
  • zookeeper.mntr.znode_count: Number of znodes reported by the local ZooKeeper process.

This is a default metricset. If the host module is unconfigured, this metricset is enabled by default.

Fields

For a description of each field in the metricset, see the exported fields section.

Here is an example document generated by this metricset:

 { "@timestamp": "2017-10-12T08:05:34.853Z", "event": { "dataset": "zookeeper.mntr", "duration": 115000, "module": "zookeeper" }, "metricset": { "name": "mntr", "period": 10000 }, "service": { "address": "192.168.176.2:2181", "node": { "name": "0" }, "type": "zookeeper", "version": "3.5.5-390fe37ea45dee01bf87dc1c042b5e3dcce88653, built on 05/03/2019 12:07 GMT" }, "zookeeper": { "mntr": { "approximate_data_size": 44, "ephemerals_count": 0, "latency": { "avg": 0, "max": 0, "min": 0 }, "max_file_descriptor_count": 1048576, "num_alive_connections": 1, "open_file_descriptor_count": 49, "outstanding_requests": 0, "packets": { "received": 34, "sent": 33 }, "server_state": "standalone", "watch_count": 0, "znode_count": 5 } } }