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  1. Hadoop Common
  2. HADOOP-3478

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

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 0.19.0
    • None
    • None
    • Reviewed
    • 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.patch
          11 kB
          Jothi Padmanabhan
        2. hadoop-3478-v1.patch
          11 kB
          Jothi Padmanabhan

        Activity

          People

            jothipn Jothi Padmanabhan
            jothipn Jothi Padmanabhan
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            Dates

              Created:
              Updated:
              Resolved: