Hadoop Map/Reduce
  1. Hadoop Map/Reduce
  2. MAPREDUCE-2787

MR-279: Performance improvement in running Uber MapTasks

    Details

    • Type: Improvement Improvement
    • Status: Resolved
    • Priority: Major Major
    • Resolution: Won't Fix
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: mrv2
    • Labels:
      None

      Description

      The runUberMapTasks() in org.apache.hadoop.mapred.UberTask obtains the local fileSystem and local job configuration for every task attempt. This will have a negative performance impact.

        Activity

        Ahmed Radwan created issue -
        Ahmed Radwan made changes -
        Field Original Value New Value
        Attachment MAPREDUCE-2787.patch [ 12489730 ]
        Ahmed Radwan made changes -
        Status Open [ 1 ] Resolved [ 5 ]
        Resolution Won't Fix [ 2 ]

          People

          • Assignee:
            Ahmed Radwan
            Reporter:
            Ahmed Radwan
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            Dates

            • Created:
              Updated:
              Resolved:

              Development