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  1. Hadoop HDFS
  2. HDFS-4379

DN block reports should include a sequence number

    Details

    • Type: Improvement
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: 2.0.0-alpha, 3.0.0-alpha1
    • Fix Version/s: None
    • Component/s: datanode, namenode
    • Labels:
      None

      Description

      Block reports should include a monotonically increasing sequence number. If the sequence starts from zero, this will aid the NN in being able to distinguish a DN restart (seqNum == 0) versus a re-registration after network interruption (seqNum != 0). The NN may also use it to identify and skip already processed block reports.

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            • Assignee:
              Unassigned
              Reporter:
              daryn Daryn Sharp
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              Dates

              • Created:
                Updated:

                Development