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  1. Hadoop HDFS
  2. HDFS-12299

Race Between update pipeline and DN Re-Registration

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Details

    • Bug
    • Status: Resolved
    • Critical
    • Resolution: Fixed
    • None
    • 2.9.0, 3.0.0-beta1, 2.8.2, 2.7.6
    • None
    • None
    • Reviewed

    Description

      Scenario

      • Started pipeline with DN1->DN2->DN3
      • DN1 is re-reg and update pipeline is called
      • Update pipeline will success with DN1->DN3->DN4
      • Again update pipeline is called,which will fail with NPE.

      In step3 updatepipeline will set the storages as null since DN1 re-reg(which will remove and add the storages)
      FSNamesystem#updatePipelineInternal

         lastBlock.getUnderConstructionFeature().setExpectedLocations(lastBlock,
        storages, lastBlock.getBlockType())

      Attachments

        1. HDFS-12299-branch-2-002.patch
          5 kB
          Brahma Reddy Battula
        2. HDFS-12299-branch-2.patch
          5 kB
          Brahma Reddy Battula
        3. HDFS-12299.patch
          4 kB
          Brahma Reddy Battula
        4. HDFS-12299.002.branch-2.7.patch
          7 kB
          Konstantin Shvachko
        5. HDFS-12299.001.branch-2.7.patch
          6 kB
          Wei-Chiu Chuang

        Issue Links

          breaks

          Bug - A problem which impairs or prevents the functions of the product. HDFS-12364 [branch-2.8.2] Fix the Compile Error after HDFS-12299

          • Blocker - Blocks development and/or testing work, production could not run
          • Resolved
          is related to

          Bug - A problem which impairs or prevents the functions of the product. HDFS-13486 Backport HDFS-11817 (A faulty node can cause a lease leak and NPE on accessing data) to branch-2.7

          • Major - Major loss of function.
          • Resolved

          Activity

            People

              brahmareddy Brahma Reddy Battula
              brahmareddy Brahma Reddy Battula
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              Dates

                Created:
                Updated:
                Resolved: