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  1. Hive
  2. HIVE-16553

Change default value for hive.tez.bigtable.minsize.semijoin.reduction

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 3.0.0
    • Configuration

    Description

      Current value is 1M rows, would like to bump this up to make sure we are not creating semjoin optimizations on dimension tables, since having too many semijoin optimizations can cause serialized execution of tasks if lots of tasks are waiting for semijoin optimizations to be computed.

      Attachments

        1. HIVE-16553.1.patch
          1 kB
          Jason Dere

        Issue Links

          relates to

          Task - A task that needs to be done. HIVE-16260 Remove parallel edges of semijoin with map joins.

          • Major - Major loss of function.
          • Resolved

          Activity

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              jdere Jason Dere
              jdere Jason Dere
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              Dates

                Created:
                Updated:
                Resolved: