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  1. Hadoop Common
  2. HADOOP-3478

The algorithm to decide map re-execution on fetch failures can be improved

    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.19.0
    • Component/s: None
    • Labels:
      None
    • Hadoop Flags:
      Reviewed
    • Release Note:
      Changed reducers to fetch maps in the same order for a given host to speed up identification of the faulty maps; reducers still randomize the host selection to distribute load.

      Description

      The algorithm to decide map re-execution on fetch failures can be improved.

        Attachments

        1. hadoop-3478-v1.patch
          11 kB
          Jothi Padmanabhan
        2. hadoop-3478.patch
          11 kB
          Jothi Padmanabhan

          Activity

            People

            • Assignee:
              jothipn Jothi Padmanabhan
              Reporter:
              jothipn Jothi Padmanabhan
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              Dates

              • Created:
                Updated:
                Resolved: