Apache > ZooKeeper
 

ZooKeeper Monitor Guide

New Metrics System

The feature:New Metrics System has been available since 3.6.0 which provides the abundant metrics to help users monitor the ZooKeeper on the topic: znode, network, disk, quorum, leader election, client, security, failures, watch/session, requestProcessor, and so forth.

Metrics

All the metrics are included in the ServerMetrics.java.

Prometheus

Grafana

JMX

More details can be found in here

Four letter words

More details can be found in here