Hadoop HDFS
  1. Hadoop HDFS
  2. HDFS-2655

BlockReaderLocal#skip performs unnecessary IO

    Details

    • Type: Improvement Improvement
    • Status: Resolved
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: 0.23.1, 2.0.0-alpha
    • Fix Version/s: 0.23.2
    • Component/s: datanode
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      Per HDFS-2654 BlockReaderLocal#skip performs the skip by reading the data so we stay in sync with checksums. This could be implemented more efficiently in the future to skip to the beginning of the appropriate checksum chunk and then only read to the middle of that chunk.

      1. HDFS-2655.txt
        5 kB
        Brandon Li
      2. HDFS-2655.txt
        5 kB
        Brandon Li

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          People

          • Assignee:
            Brandon Li
            Reporter:
            Eli Collins
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            Dates

            • Created:
              Updated:
              Resolved:

              Development