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  1. Hadoop Map/Reduce
  2. MAPREDUCE-6735

Performance degradation caused by MAPREDUCE-5465 and HADOOP-12107

    Details

    • Type: Bug
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
    • Labels:
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      Description

      Two commits, MAPREDUCE-5465 and HADOOP-12107 are making Terasort on YARN 10% slower.

      Reduce phase with those commits ~5 mins
      Reduce phase without ~3.5 mins

      Average Reduce is taking 4mins, 16sec with those commits compared to 3mins, 48sec without.

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              • Assignee:
                Unassigned
                Reporter:
                alexbalitsky Alexandr Balitsky
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                Dates

                • Created:
                  Updated: