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  1. Hive
  2. HIVE-7292 Hive on Spark
  3. HIVE-9574

Lazy computing in HiveBaseFunctionResultList may hurt performance [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

      RowContainer.first may call InputFormat.getSplits, which is expensive. If we switch container and backupContainer frequently in HiveKVResultCache, it will downgrade performance.

        Attachments

        1. HIVE-9574.6-spark.patch
          23 kB
          Jimmy Xiang
        2. HIVE-9574.5-spark.patch
          23 kB
          Jimmy Xiang
        3. HIVE-9574.4-spark.patch
          29 kB
          Jimmy Xiang
        4. HIVE-9574.3-spark.patch
          29 kB
          Jimmy Xiang
        5. HIVE-9574.2-spark.patch
          29 kB
          Jimmy Xiang
        6. HIVE-9574.1-spark.patch
          30 kB
          Jimmy Xiang

          Activity

            People

            • Assignee:
              jxiang Jimmy Xiang
              Reporter:
              lirui Rui Li
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              Dates

              • Created:
                Updated:
                Resolved: