Arpit Agarwal created HDFS-10713:
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Summary: Throttle FsNameSystem lock warnings
Key: HDFS-10713
URL: https://issues.apache.org/jira/browse/HDFS-10713
Project: Hadoop HDFS
Issue Type: Bug
Components: logging, namenode
Reporter: Arpit Agarwal
The NameNode logs a message if the FSNamesystem write lock is held by a thread
for over 1 second. These messages can be throttled to at one most one per x
minutes to avoid potentially filling up NN logs. We can also log the number of
suppressed notices since the last log message.
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