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  1. Hadoop HDFS
  2. HDFS-978

Record every new block allocation of a file into the transaction log.

    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Duplicate
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: namenode
    • Labels:
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      Description

      HDFS should record every new block allocation (of a file) into its transaction logs. In the current code, block allocations are persisted only when a file is closed or hflush-ed. This feature will enable HDFS writers to survive namenode restarts.

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              • Assignee:
                tlipcon Todd Lipcon
                Reporter:
                dhruba dhruba borthakur
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                • Created:
                  Updated:
                  Resolved: