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  1. Hive
  2. HIVE-13293

Cache RDD to improve parallel order by performance for HoS

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 2.0.0
    • 2.1.0
    • Spark
    • None

    Description

      I use TPCx-BB to do some performance test on Hive on Spark engine. And found query 10 has performance degradation when enabling parallel order by.
      It seems that sampling cost much time before running the real query.

      Attachments

        1. HIVE-13293.1.patch
          2 kB
          Rui Li
        2. HIVE-13293.2.patch
          2 kB
          Rui Li
        3. HIVE-13293.3.patch
          2 kB
          Rui Li
        4. HIVE-13293.3.patch
          2 kB
          Rui Li
        5. HIVE-13293.3.patch
          2 kB
          Rui Li

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          People

            lirui Rui Li Assign to me
            Lifeng Wang Lifeng Wang
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            Dates

              Created:
              Updated:
              Resolved:

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