Details
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Type:
Sub-task
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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: QuorumJournalManager (HDFS-3077)
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Fix Version/s: QuorumJournalManager (HDFS-3077)
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Component/s: None
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Labels:None
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Target Version/s:
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Hadoop Flags:Reviewed
Description
Simple bug in the JournalNode: it caches certain values (eg accepted epoch) in memory, and the cached values aren't reset when the journal is formatted. So, after a format, further calls to the same Journal will see the old value for accepted epoch, writer epoch, etc, preventing the journal from being re-used until the JN is restarted.