Jing Zhao created HDFS-9145:
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Summary: Tracking methods that hold FSNamesytemLock for too long
Key: HDFS-9145
URL: https://issues.apache.org/jira/browse/HDFS-9145
Project: Hadoop HDFS
Issue Type: Improvement
Components: namenode
Reporter: Jing Zhao
Assignee: Mingliang Liu
It will be helpful that if we can have a way to track (or at least log a msg)
if some operation is hold the FSNamesystem lock for a long time.
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