Jason Dere created HIVE-18899:

             Summary: Separate FetchWork required for each query that uses the 
results cache
                 Key: HIVE-18899
                 URL: https://issues.apache.org/jira/browse/HIVE-18899
             Project: Hive
          Issue Type: Sub-task
            Reporter: Jason Dere
            Assignee: Jason Dere

[~gopalv] found issues when running lots of concurrent queries against HS2 with 
the query cache. Looks like the FetchWork held by the results cache cannot be 
shared between multiple queries because it contains a ListSinkOperator that is 
used to hold the results of a fetch.

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