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  1. Hadoop HDFS
  2. HDFS-877

Client-driven block verification not functioning

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.20.1, 0.21.0, 0.22.0
    • Fix Version/s: 0.21.0
    • Component/s: hdfs-client, test
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      This is actually the reason for HDFS-734 (TestDatanodeBlockScanner timing out). The issue is that DFSInputStream relies on readChunk being called one last time at the end of the file in order to receive the lastPacketInBlock=true packet from the DN. However, DFSInputStream.read checks pos < getFileLength() before issuing the read. Thus gotEOS never shifts to true and checksumOk() is never called.

        Attachments

        1. hdfs-877.txt
          14 kB
          Todd Lipcon
        2. hdfs-877.txt
          14 kB
          Todd Lipcon
        3. hdfs-877.txt
          15 kB
          Todd Lipcon
        4. hdfs-877.txt
          5 kB
          Todd Lipcon
        5. hdfs-877.txt
          5 kB
          Todd Lipcon
        6. hdfs-877.txt
          4 kB
          Todd Lipcon
        7. hdfs-877-branch20.txt
          10 kB
          Todd Lipcon

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              • Assignee:
                tlipcon Todd Lipcon
                Reporter:
                tlipcon Todd Lipcon
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                Dates

                • Created:
                  Updated:
                  Resolved: