Hey all, I have come pretty far along with using cacti to graph Hadoop JMX variables using caciti. http://www.jointhegrid.com/hadoop/. Currently I have about 8 different hadoop graph types available for the NameNode and the DataNode.
The NameNode has many fairly complete and detailed counters. I have been browsing the Hadoop Core Jira, Metrics on Secondary namenode's activity HADOOP-3990. I also notice that JobTracker in version 19.1 Has no JMX attributes. Also It seems like some of the JMX attributes that exists currently are non functional. I did not just want create multiple Jira for each JMX attribute that I found not to be working. I want to get some confirmation that I am not doing something wrong. I figured, I would wave a flag here and see who is currently involved or interested. I have some experience with hadoop internals and would like to get involved in implementing some of the JMX objects. Where to start?
