Details
Description
JobTracker does not initialize MetricsSystem before starting. (In JobTracker.java's startTracker method)
It seems CDH4's JobTracker does not load hadoop-metrics2.properties.
Does CDH4 support jobtracker's rpc metrics if it is configurated in hadoop-metrics2.properties??
In hadoop brunch 1, JobTracker load hadoop-metrics2.properties before it started.( DefaultMetricsSystem.initialize("JobTracker") )
https://svn.apache.org/repos/asf/hadoop/common/branches/branch-1/src/mapred/org/apache/hadoop/mapred/JobTracker.java