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  1. Hadoop HDFS
  2. HDFS-812

FSNamesystem#internalReleaseLease throws NullPointerException on a single-block file's lease recovery

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: 0.21.0, 0.22.0
    • Fix Version/s: 0.21.0
    • Component/s: namenode
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      FSNamesystem.internalReleaseLease() uses the result of iFile#numBlocks(); call to get a number of an under construction file's blocks. numBlock() can return 0 if the file doesn't have any blocks yet. This will cause internalReleaseLease() to throw ArrayIndexOutOfBoundException.

      In case of a single block file, the same method will throw NullPointerException because the penultimate block is going to be null according to the logic of INodeFile#getPenultimateBlock().

        Attachments

        1. HDFS-812.patch
          5 kB
          Konstantin Boudnik
        2. HDFS-812.patch
          5 kB
          Konstantin Boudnik
        3. HDFS-812.patch
          9 kB
          Konstantin Boudnik
        4. HDFS-812.patch
          2 kB
          Konstantin Boudnik
        5. HDFS-812.patch
          2 kB
          Konstantin Boudnik

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              • Assignee:
                cos Konstantin Boudnik
                Reporter:
                cos Konstantin Boudnik
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                Dates

                • Created:
                  Updated:
                  Resolved: