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  1. Hadoop HDFS
  2. HDFS-8492

DN should notify NN when client requests a missing block

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 2.0.0-alpha
    • 2.8.0, 3.0.0-alpha2
    • None
    • None
    • Reviewed

    Description

      If the DN has a block its volume map but not on-disk, it tells clients it's an invalid block id. The NN is not informed of the missing block until either the bp slice scanner or the directory scanner detects the missing block. DN should remove the replica from the volume map and inform the NN.

      Attachments

        1. HDFS-8492-02.patch
          6 kB
          Rakesh Radhakrishnan
        2. HDFS-8492.01.patch
          5 kB
          Walter Su

        Issue Links

          breaks

          Bug - A problem which impairs or prevents the functions of the product. HDFS-11711 DN should not delete the block On "Too many open files" Exception

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

          Activity

            People

              walter.k.su Walter Su
              daryn Daryn Sharp
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              Dates

                Created:
                Updated:
                Resolved: