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

        Activity

        Eli Collins created issue -
        Brandon Li made changes -
        Field Original Value New Value
        Assignee Brandon Li [ brandonli ]
        Brandon Li made changes -
        Attachment HDFS-2655.txt [ 12511209 ]
        Jitendra Nath Pandey made changes -
        Status Open [ 1 ] Patch Available [ 10002 ]
        Brandon Li made changes -
        Attachment HDFS-2655.txt [ 12514747 ]
        Brandon Li made changes -
        Affects Version/s 0.24.0 [ 12317653 ]
        Jitendra Nath Pandey made changes -
        Status Patch Available [ 10002 ] Open [ 1 ]
        Jitendra Nath Pandey made changes -
        Status Open [ 1 ] Patch Available [ 10002 ]
        Jitendra Nath Pandey made changes -
        Status Patch Available [ 10002 ] Resolved [ 5 ]
        Hadoop Flags Reviewed [ 10343 ]
        Resolution Fixed [ 1 ]
        Suresh Srinivas made changes -
        Fix Version/s 0.23.2 [ 12319852 ]
        Allen Wittenauer made changes -
        Affects Version/s 2.0.0-alpha [ 12320353 ]
        Affects Version/s 0.24.0 [ 12317653 ]

          People

          • Assignee:
            Brandon Li
            Reporter:
            Eli Collins
          • Votes:
            0 Vote for this issue
            Watchers:
            1 Start watching this issue

            Dates

            • Created:
              Updated:
              Resolved:

              Development