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  1. Hadoop HDFS
  2. HDFS-4379

DN block reports should include a sequence number

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Details

    • Improvement
    • Status: Open
    • Major
    • Resolution: Unresolved
    • 2.0.0-alpha, 3.0.0-alpha1
    • None
    • datanode, namenode
    • 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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          is related to

          Bug - A problem which impairs or prevents the functions of the product. HDFS-4288 NN accepts incremental BR as IBR in safemode

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

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              Unassigned Unassigned
              daryn Daryn Sharp
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              Dates

                Created:
                Updated: