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  1. Hive
  2. HIVE-19875

increase LLAP IO queue size for perf

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 3.1.0, 4.0.0
    • Fix Version/s: 3.1.0, 4.0.0
    • Component/s: None
    • Labels:
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      Description

      According to Gopal Vijayaraghavan queue limit has perf impact, esp. during hashtable load for mapjoin where in the past IO used to queue up more data for processing to process.
      1) Overall the default limit could be adjusted higher.
      2) Depending on Decimal64 availability, the weight for decimal columns could be reduced.

        Attachments

        1. HIVE-19875.2.patch
          4 kB
          Prasanth Jayachandran
        2. HIVE-19875.1.patch
          4 kB
          Prasanth Jayachandran

          Activity

            People

            • Assignee:
              prasanth_j Prasanth Jayachandran
              Reporter:
              prasanth_j Prasanth Jayachandran
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              Dates

              • Created:
                Updated:
                Resolved: