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Type:
Bug
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Status: Resolved
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Priority:
Major
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Resolution: Fixed
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Affects Version/s: None
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Fix Version/s: 2.8.0, 2.7.4, 3.0.0-alpha2
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Labels:None
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Hadoop Flags:Reviewed
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.
- is depended upon by
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HDFS-10829 Improve Testing for NN Lock Logging
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- Open
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- is related to
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HDFS-9145 Tracking methods that hold FSNamesystemLock for too long
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- Resolved
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- relates to
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HDFS-10475 Adding metrics for long FSNamesystem read and write locks
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- Open
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