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  1. Hadoop HDFS
  2. HDFS-4288

NN accepts incremental BR as IBR in safemode

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Details

    • Bug
    • Status: Closed
    • Critical
    • Resolution: Fixed
    • 0.23.0, 2.0.0-alpha, 3.0.0-alpha1
    • 2.0.3-alpha, 0.23.7
    • namenode
    • None

    Description

      If a DN is ready to send an incremental BR and the NN goes down, the DN will repeatedly try to reconnect. The NN will then process the DN's incremental BR as an initial BR. The NN now thinks the DN has only a few blocks, and will ignore all subsequent BRs from that DN until out of safemode – which it may never do because of all the "missing" blocks on the affected DNs.

      Attachments

        1. HDFS-4288.patch
          7 kB
          Daryn Sharp
        2. HDFS-4288.patch
          8 kB
          Daryn Sharp
        3. HDFS-4288.branch-23.patch
          3 kB
          Daryn Sharp
        4. HDFS-4288.branch-23.patch
          10 kB
          Daryn Sharp

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            daryn Daryn Sharp
            daryn Daryn Sharp
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              Updated:
              Resolved:

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