The exporter peridically scrapes Zookeeper metrics via four letter word commands, see https://zookeeper.apache.org/doc/trunk/zookeeperAdmin.html#The+Four+Letter+Words. Currently exposes metrics from the "mntr" and "ruok" (requires ZooKeeper 3.4.0 or above)
These are parsed into prometheus metrics and served on an endpoint at /metrics
Still a WIP
Currently requires go for installation. Binaries and a docker image will be coming.
To install the latest version run:
go get -u github.com/lucianjon/zk-exporter
Note: you should have $GOPATH/bin added to your $PATH
Once installed run:
zk-exporter -port <port> -servers <zookeeper servers> -pollinterval <how often to poll>
The ZooKeeper servers are a string in the host:port,host2:port2 format.
The pollinterval is a go time.Duration value, eg: 30s
- By default metrics are exposed on
0.0.0.0:9120/metrics