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  1. Hadoop HDFS
  2. HDFS-877

Client-driven block verification not functioning

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 0.20.1, 0.21.0, 0.22.0
    • 0.21.0
    • hdfs-client, test
    • None
    • 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-branch20.txt
          10 kB
          Todd Lipcon
        2. hdfs-877.txt
          4 kB
          Todd Lipcon
        3. hdfs-877.txt
          5 kB
          Todd Lipcon
        4. hdfs-877.txt
          5 kB
          Todd Lipcon
        5. hdfs-877.txt
          15 kB
          Todd Lipcon
        6. hdfs-877.txt
          14 kB
          Todd Lipcon
        7. hdfs-877.txt
          14 kB
          Todd Lipcon

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. HDFS-734 TestDatanodeBlockScanner times out in branch 0.20

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

          Activity

            People

              tlipcon Todd Lipcon
              tlipcon Todd Lipcon
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              Dates

                Created:
                Updated:
                Resolved: