Haiyang Hu created HDFS-17172:
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Summary: Support FSNamesystemLock Parameters reconfigurable
Key: HDFS-17172
URL: https://issues.apache.org/jira/browse/HDFS-17172
Project: Hadoop HDFS
Issue Type: Improvement
Reporter: Haiyang Hu
Assignee: Haiyang Hu
For Namesystem lock some parameters such as
"dfs.namenode.lock.detailed-metrics.enabled",
"dfs.namenode.read-lock-reporting-threshold-ms",
"dfs.namenode.write-lock-reporting-threshold-ms"
we will support reconfigurable these parameters without namenode restart is
convenient for us to check the metrics operation of FSNamesystemLock.
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