Erik Krogen created HDFS-10872:
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Summary: Add MutableRate metrics for FSNamesystemLock operations
Key: HDFS-10872
URL: https://issues.apache.org/jira/browse/HDFS-10872
Project: Hadoop HDFS
Issue Type: Sub-task
Components: namenode
Reporter: Erik Krogen
Assignee: Erik Krogen
Add metrics for FSNamesystemLock operations to see, overall, how long each
operation is holding the lock for. Use MutableRate metrics for now.
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