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https://issues.apache.org/jira/browse/HIVE-2084?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13461992#comment-13461992
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Carl Steinbach commented on HIVE-2084:
--------------------------------------

@Andy: Thanks for the pointer.
                
> Upgrade datanucleus from 2.0.3 to 3.0.1
> ---------------------------------------
>
>                 Key: HIVE-2084
>                 URL: https://issues.apache.org/jira/browse/HIVE-2084
>             Project: Hive
>          Issue Type: Improvement
>          Components: Metastore
>            Reporter: Ning Zhang
>            Assignee: Sushanth Sowmyan
>              Labels: datanucleus
>         Attachments: ASF.LICENSE.NOT.GRANTED--HIVE-2084.D2397.1.patch, 
> HIVE-2084.1.patch.txt, HIVE-2084.2.patch.txt, HIVE-2084.patch
>
>
> It seems the datanucleus 2.2.3 does a better join in caching. The time it 
> takes to get the same set of partition objects takes about 1/4 of the time it 
> took for the first time. While with 2.0.3, it took almost the same amount of 
> time in the second execution. We should retest the test case mentioned in 
> HIVE-1853, HIVE-1862.

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