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  1. Hive
  2. HIVE-19875

increase LLAP IO queue size for perf

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 3.1.0, 4.0.0
    • 3.1.0, 4.0.0, 4.0.0-alpha-1
    • None
    • None

    Description

      According to gopalv 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-19875.1.patch
          4 kB
          Prasanth Jayachandran
        2. HIVE-19875.2.patch
          4 kB
          Prasanth Jayachandran

        Activity

          People

            prasanth_j Prasanth Jayachandran
            prasanth_j Prasanth Jayachandran
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            Dates

              Created:
              Updated:
              Resolved: