Jason Dere created HIVE-20834:

             Summary: Hive QueryResultCache entries keeping reference to 
SemanticAnalyzer from cached query
                 Key: HIVE-20834
                 URL: https://issues.apache.org/jira/browse/HIVE-20834
             Project: Hive
          Issue Type: Bug
            Reporter: Jason Dere
            Assignee: Jason Dere

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.

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