Erik Krogen created HDFS-10896:
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Summary: Move lock logging logic from FSNamesystem into
FSNamesystemLock
Key: HDFS-10896
URL: https://issues.apache.org/jira/browse/HDFS-10896
Project: Hadoop HDFS
Issue Type: Sub-task
Components: namenode
Reporter: Erik Krogen
Assignee: Erik Krogen
There are a number of tickets (HDFS-10742, HDFS-10817, HDFS-10713, this
subtask's story HDFS-10475) which are adding/improving logging/metrics around
the {{FSNamesystemLock}}. All of this is done in {{FSNamesystem}} right now,
which is polluting the namesystem with ThreadLocal variables, timing counters,
etc. which are only relevant to the lock itself and the number of these
increases as the logging/metrics become more sophisticated. It would be best to
move these all into FSNamesystemLock to keep the metrics/logging tied directly
to the item of interest.
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