Report Java VM metrics
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Key: HADOOP-1562
URL: https://issues.apache.org/jira/browse/HADOOP-1562
Project: Hadoop
Issue Type: New Feature
Components: metrics
Reporter: David Bowen
Assignee: David Bowen
It would be useful to have each Java process in Hadoop (JobTracker,
TaskTracker, NameNode and DataNode) report some Java VM metrics. E.g.
heap/non-heap memory used/committed, number of garbage collections and
percentage of time spent in GC, number of threads that are
runnable/blocked/waiting/etc.
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