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https://issues.apache.org/jira/browse/HIVE-2084?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13446183#comment-13446183
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Sushanth Sowmyan commented on HIVE-2084:
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@Carl : There's actually another issue I discovered with this patch, that I'm
currently looking at where unit tests that use indexes start failing. (With
different versions of datanucleus, I find a different number of
rollbackTransaction() being called from the ObjectStore) I almost have the root
cause, so I'll update this patch with that and bumping it to 3.1.0 in another
day or two.
> 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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