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  1. Hive
  2. HIVE-20364

Update default for hive.map.aggr.hash.min.reduction

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    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 4.0.0
    • Component/s: Configuration
    • Labels:
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      Description

      Default value is 0.5 Lets update it to 0.99
      In average case its a trade-off between cpu vs network. Erring on side of CPU is better since perf loss caused by network is usually larger.

        Attachments

        1. HIVE-20364.patch
          2 kB
          Ashutosh Chauhan

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              • Assignee:
                ashutoshc Ashutosh Chauhan
                Reporter:
                ndembla Nita Dembla
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                  Updated:
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