Zhe Zhang created HDFS-10798:
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Summary: Make the threshold of reporting FSNamesystem lock
contention configurable
Key: HDFS-10798
URL: https://issues.apache.org/jira/browse/HDFS-10798
Project: Hadoop HDFS
Issue Type: Improvement
Components: namenode
Reporter: Zhe Zhang
Currently {{FSNamesystem#WRITELOCK_REPORTING_THRESHOLD}} is set at 1 second. In
a busy system this might add too much overhead. We should make the threshold
configurable.
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