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  1. Hive
  2. HIVE-20834

Hive QueryResultCache entries keeping reference to SemanticAnalyzer from cached query

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 4.0.0-alpha-1
    • None
    • 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. dominator_tree.png
          564 kB
          Jason Dere
        2. HIVE-20834.1.patch
          3 kB
          Jason Dere
        3. HIVE-20834.2.patch
          3 kB
          Jason Dere
        4. HIVE-20834.3.patch
          3 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

          Activity

            People

              jdere Jason Dere
              jdere Jason Dere
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              Dates

                Created:
                Updated:
                Resolved: