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  1. Hadoop HDFS
  2. HDFS-1218

20 append: Blocks recovered on startup should be treated with lower priority during block synchronization

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: 0.20-append
    • Fix Version/s: 0.20.205.0
    • Component/s: datanode
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      When a datanode experiences power loss, it can come back up with truncated replicas (due to local FS journal replay). Those replicas should not be allowed to truncate the block during block synchronization if there are other replicas from DNs that have not restarted.

        Attachments

        1. hdfs-1281.txt
          32 kB
          Todd Lipcon
        2. HDFS-1218.20s.2.patch
          30 kB
          Suresh Srinivas

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              • Assignee:
                tlipcon Todd Lipcon
                Reporter:
                tlipcon Todd Lipcon
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                Dates

                • Created:
                  Updated:
                  Resolved: