Erik Krogen created HDFS-11021:
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Summary: Add FSNamesystemLock metrics for BlockManager operations
Key: HDFS-11021
URL: https://issues.apache.org/jira/browse/HDFS-11021
Project: Hadoop HDFS
Issue Type: Sub-task
Components: namenode
Reporter: Erik Krogen
Assignee: Erik Krogen
Right now the operations which the {{BlockManager}} issues to the
{{Namesystem}} will not emit metrics about which operation caused the
{{FSNamesystemLock}} to be held; they are all grouped under "OTHER". We should
fix this since the {{BlockManager}} creates many acquisitions of both the read
and write locks.
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