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  1. Hadoop HDFS
  2. HDFS-6601

Issues in finalizing rolling upgrade when there is a layout version change

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: 2.5.0
    • Fix Version/s: 2.5.0
    • Component/s: None
    • Labels:
      None
    • Target Version/s:
    • Hadoop Flags:
      Reviewed

      Description

      After HDFS-6545, we have noticed a couple of issues.

      • The storage dir's VERSION file is not properly updated. This becomes a problem when there is a layout version change. We can have the finalization do storage.writeAll()
      • OP_ROLLING_UPGRADE_FINALIZE cannot be replayed, once the corresponding OP_ROLLING_UPGRADE_START is consumed and a new fsimage is created (e.g. rollback image). On restart, NN terminates complaining it can't finalize something that it didn't start. We can make NN ignore OP_ROLLING_UPGRADE_FINALIZE if no rolling upgrade is in progress.

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            • Assignee:
              kihwal Kihwal Lee
              Reporter:
              kihwal Kihwal Lee
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              • Created:
                Updated:
                Resolved: