Update (2026): This note is from 2014 and refers to Chukwa 0.5.0 (incubator) and Hadoop 1.2.1/2.2.0, all long outdated. Apache Chukwa appears to be retired, so check the project status before using it; for log collection today, consider tools such as Fluentd, Fluent Bit, Logstash or Vector.

I was working with some log collection and aggregation tools from the Apache project. When I got to Chukwa, I read the introduction and release notes and didn't know what to do, because it seemed like the project had been in and out for a while and was a bit obsolete. I tried to find information about it online but found very little, so I decided to email the project lead.

To summarize:

• Chukwa 0.5.0 (incubator), the most current release at the time, works with Hadoop 1.2.1.

So anyone like me who wants to test it on Hadoop 2.2.0 will have to wait for a while.