Details

    • Type: Sub-task
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Component/s: None
    • Labels:
      None
    • Target Version/s:
    • Hadoop Flags:
      Reviewed

      Description

      Add an ability for data nodes to send an OOB response in order to indicate an upcoming upgrade-restart. Client should ignore the pipeline error from the node for a configured amount of time and try reconstruct the pipeline without excluding the restarted node. If the node does not come back in time, regular pipeline recovery should happen.

      This feature is useful for the applications with a need to keep blocks local. If the upgrade-restart is fast, the wait is preferable to losing locality. It could also be used in general instead of the draining-writer strategy.

        Attachments

        1. HDFS-5583.patch
          31 kB
          Kihwal Lee
        2. HDFS-5583.patch
          31 kB
          Kihwal Lee
        3. HDFS-5583.patch
          31 kB
          Kihwal Lee
        4. HDFS-5583.patch
          29 kB
          Kihwal Lee

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              • Assignee:
                kihwal Kihwal Lee
                Reporter:
                kihwal Kihwal Lee
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                Dates

                • Created:
                  Updated:
                  Resolved: