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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

    • Type: Sub-task
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 1.1.0
    • Component/s: Spark
    • Labels:
      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

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              • Assignee:
                lirui Rui Li
                Reporter:
                lirui Rui Li
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                Dates

                • Created:
                  Updated:
                  Resolved: