JMX Exporter on Kafka not working on compute instance

[Azher Khan]

Hi Team,

I am trying to setup JMX exporter for Kafka running on a compute Instance (Virtual Machine).

As suggested, I downloaded the JMX Exporter jar and the Kafka yaml from the following location.

wget https://repo1.maven.org/maven2/io/prometheus/jmx/jmx_prometheus_javaagent/0.12.0/jmx_prometheus_javaagent-0.12.0.jar
wget https://raw.githubusercontent.com/prometheus/jmx_exporter/master/example_configs/kafka-0-8-2.yml


I set the environment variables in the "/etc/systemd/system/kafka.service" file as below:

Environment="KAFKA_OPTS=$KAFKA_OPTS -javaagent:/home/kafka_user/jmx_kafka_exporter/jmx_prometheus_javaagent-0.12.0.jar=7070:/home/kafka_user/jmx_kafka_exporter/kafka-0-8-2.yml"

After performing a reload and restart; Kafka fails to start.

Would highly appreciate any suggestions to run JMX exporter for Kafka running on a compute instance.

Thank you in Advance,

sudo systemctl daemon-reload
sudo systemctl restart kafka

sudo systemctl status kafka
● kafka.service - Kafka Daemon
   Loaded: loaded (/etc/systemd/system/kafka.service; enabled; vendor preset: disabled)
   Active: failed (Result: start-limit) since Thu 2020-03-26 06:05:52 UTC; 935ms ago
  Process: 9842 ExecStart=/opt/kafka/bin/kafka-server-start.sh /opt/kafka/config/server.properties (code=exited, status=1/FAILURE)
 Main PID: 9842 (code=exited, status=1/FAILURE)

Mar 26 06:05:51 kafka1.com systemd[1]: Unit kafka.service entered failed state.
Mar 26 06:05:51 kafka1.com systemd[1]: kafka.service failed.
Mar 26 06:05:52 kafka1.com systemd[1]: kafka.service holdoff time over, scheduling restart.
Mar 26 06:05:52 kafka1.com systemd[1]: Stopped Kafka Daemon.
Mar 26 06:05:52 kafka1.com systemd[1]: start request repeated too quickly for kafka.service
Mar 26 06:05:52 kafka1.com systemd[1]: Failed to start Kafka Daemon.
Mar 26 06:05:52 kafka1.com systemd[1]: Unit kafka.service entered failed state.
Mar 26 06:05:52 kafka1.com systemd[1]: kafka.service failed.

[Brian Candler]

You need to look a bit further back in the logs to find the error:

journalctl -eu kafka