Reliable Insights

A blog on monitoring, scale and operational Sanity

May 14, 2018

Converting string states to booleans with the JMX exporter

You may have come across a mBean attribute with a value such as STARTED or RUNNING. How do you convert that to a more useful boolean metric?

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May 7, 2018

Exposing version numbers with the JMX exporter

While the JMX attributes you are usually working with will be numbers, the JMX exporter also has support for strings.

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October 24, 2016

Monitoring Kafka with Prometheus

We've previously looked at how to monitor Cassandra with Prometheus. Let's see the process for getting metrics from another popular Java application, Kafka.

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October 22, 2015

Monitoring Cassandra with Prometheus

Cassandra is one of many Java-based systems that offers metrics via JMX. The JMX Exporter offers way to use these with Prometheus. By following these steps you can be up and running in under a minute!

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August 19, 2015

Viewing Logs for the JMX Exporter

Sometimes mBeans produce errors when scraped by the JMX exporter. Being able to look at detailed logs can help you figure out exactly which mBean is having issues and why.

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