How to monitor JMX metrics of Kafka broker on command line?

Question

A Kafka cluster can be monitored in granular detail via the JMX metrics it exposes. Usually an external GUI or application like jconsole needs to be hooked up to a broker's exposed JMX_PORT in order to view these metrics.

Is there a way that I can view a broker's JMX metrics in an SSH session, via STDOUT? Is there a native Kafka command that I can run to view these metrics?

Answer 1

Download the jar located here:

https://sourceforge.net/projects/cyclops-group/files/jmxterm/1.0-alpha-4/

On the machine, then run:

wget https://sourceforge.net/projects/cyclops-group/files/jmxterm/1.0-alpha-4/ -o jmxterm.jar

java -jar jmxterm.jar

>open localhost:$jmx_port

Help will give you what you need after that :)

Save this jar somewhere useful, I use it nearly every day.