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  1. Hive
  2. HIVE-20834

Hive QueryResultCache entries keeping reference to SemanticAnalyzer from cached query

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 4.0.0
    • Component/s: None
    • Labels:
      None

      Description

      QueryResultCache.LookupInfo ends up keeping a reference to the SemanticAnalyzer from the cached query, for as long as the cached entry is in the cache. We should not be keeping the SemanticAnalyzer around after the query is done executing since they can hold on to quite a bit of memory.

        Attachments

        1. HIVE-20834.3.patch
          3 kB
          Jason Dere
        2. HIVE-20834.2.patch
          3 kB
          Jason Dere
        3. HIVE-20834.1.patch
          3 kB
          Jason Dere
        4. dominator_tree.png
          564 kB
          Jason Dere

          Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. HIVE-18513 Query results caching

          • Major - Major loss of function.
          • Closed

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              People

              • Assignee:
                jdere Jason Dere
                Reporter:
                jdere Jason Dere
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                Dates

                • Created:
                  Updated:
                  Resolved: