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  1. Hive
  2. HIVE-11291

Avoid allocation storm while doing rule matching on operator/expression trees

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 2.0.0
    • Component/s: None
    • Labels:
      None

      Description

      RuleRegExMatch repeatedly allocates string while trying to find a matching pattern. This results in huge GC churn for large trees.

        Attachments

        1. HIVE-11291.patch
          9 kB
          Ashutosh Chauhan

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            People

            • Assignee:
              ashutoshc Ashutosh Chauhan Assign to me
              Reporter:
              ashutoshc Ashutosh Chauhan

              Dates

              • Created:
                Updated:
                Resolved:

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