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https://issues.apache.org/jira/browse/HIVE-18846?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16399955#comment-16399955
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Gopal V commented on HIVE-18846:
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LGTM - +1
Tested with 1024 users and 1min expiry - this produces a neat sawtooth graph
going from 5s -> 110ms and repeating.
> Query results cache: Allow queries to refer to the pending results of a query
> that has not finished yet
> -------------------------------------------------------------------------------------------------------
>
> Key: HIVE-18846
> URL: https://issues.apache.org/jira/browse/HIVE-18846
> Project: Hive
> Issue Type: Sub-task
> Components: Query Planning
> Reporter: Jason Dere
> Assignee: Jason Dere
> Priority: Major
> Attachments: HIVE-18846.1.patch, HIVE-18846.2.patch
>
>
> Currently, a query's results can only be looked up in the cache if the query
> has completely finished execution. Allow new queries to use the results cache
> to find queries that are still executing so they can re-use the results when
> the query has finished.
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