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  1. Hive
  2. HIVE-7292 Hive on Spark
  3. HIVE-9251

SetSparkReducerParallelism is likely to set too small number of reducers [Spark Branch]

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Details

    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 1.1.0
    • Spark
    • None

    Description

      This may hurt performance or even lead to task failures. For example, spark's netty-based shuffle limits the max frame size to be 2G.

      Attachments

        1. HIVE-9251.1-spark.patch
          4 kB
          Rui Li
        2. HIVE-9251.2-spark.patch
          10 kB
          Rui Li
        3. HIVE-9251.3-spark.patch
          151 kB
          Rui Li
        4. HIVE-9251.4-spark.patch
          170 kB
          Rui Li
        5. HIVE-9251.5-spark.patch
          171 kB
          Rui Li
        6. HIVE-9251.6-spark.patch
          171 kB
          Rui Li

        Issue Links

          is related to

          Improvement - An improvement or enhancement to an existing feature or task. SPARK-5080 Expose more cluster resource information to user

          • Major - Major loss of function.
          • Resolved

          Test - A new unit, integration or system test. HIVE-9290 Make some test results deterministic

          • Major - Major loss of function.
          • Resolved
          links to

          Web Link RB entry

          Activity

            People

              lirui Rui Li
              lirui Rui Li
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              Dates

                Created:
                Updated:
                Resolved: