Zookeeper

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Zookeeper

Author: Outlyer | Version: 1.0.2 | License: MIT | Categories:

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

This integration will monitor your ZooKeeper cluster by collecting ZooKeeper metrics using four letter words commands.

Once enabled you will get a default ZooKeeper dashboard and alert rules to help you get started monitoring your key ZooKeeper metrics.

Metric Name Type Labels Unit Description
zk_avg_latency Gauge   millisecond The average time it takes for the server to respond to a client request.
zk_max_latency Gauge   millisecond The maximum time it takes for the server to respond to a client request.
zk_min_latency Gauge   millisecond The minimum time it takes for the server to respond to a client request.
zk_packets_received Counter     The number of packets received.
zk_packets_sent Counter     The number of packets sent.
zk_num_alive_connections Gauge     The total count of client connections.
zk_outstanding_requests Gauge     The number of queued requests when the server is under load and is receiving more sustained requests than it can process.
zk_znode_count Gauge     The number of znodes in the ZooKeeper namespace (the data).
zk_watch_count Gauge     Watch count.
zk_ephemerals_count Gauge     Ephemerals Count.
zk_approximate_data_size Gauge   byte Approximate data size.
zk_open_file_descriptor_count Gauge     Number of currently open file descriptors.
zk_max_file_descriptor_count Gauge     Maximum number of open file descriptors.
zk_followers Gauge     Number of followers.
zk_synced_followers Gauge     Current number of synced followers.
zk_pending_syncs Gauge     Current number of pending syncs.
zk_disk_used_pct Gauge device fraction The percentage of disk used per partition.

Run the ZooKeeper plugin against your ZooKeeper instances and it will start collecting metrics.

Plugin Environment Variables

The ZooKeeper plugin can be customized via environment variables.

Variable Default Description
ip localhost ZooKeeper host.
port 2181 ZooKeeper port.
Version Release Date Description
1.0.3 04-Oct-2018 Adds dashboard scope and fixes widgets.
1.0.2 28-Sep-2018 Fixes ZooKeeper dashboard logo URL and updates docs.
1.0.1 28-Sep-2018 Uses ip environment variable instead of host.
1.0 25-May-2018 Initial version of our ZooKeeper monitoring integration.