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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:
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      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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              • Assignee:
                ashutoshc Ashutosh Chauhan
                Reporter:
                ashutoshc Ashutosh Chauhan
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                • Created:
                  Updated:
                  Resolved: