Hi, For a few days I'm trying to make hadoop work with the Ganglia monitoring software. I'm using hadoop 0.18.3 with ganglia 3.0.6, I've changed the hadoop-metrics file as described in the wiki and also used HADOOP-3422 patch.Now, I can only see system metrics in the ganglia data and nothing about hadoop itself.
I also tried to add a collection group to gmond.conf for metric mapred.tasktracker.mapTaskSlots, but that caused gmond to stop working because it couldn't "collect the metric on the platform" which means that it doesn't recognize the metric. It should be possible to do this like in http://rcf.unl.edu/ganglia/?c=red. There're some posts of this issue but I couldn't find any answer or detailed description of how to monitor hadoop with ganglia. Does anyone have any experience with this ? Thanks, Tamir
