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Posted to dev@hive.apache.org by "Navis (JIRA)" <ji...@apache.org> on 2013/03/18 02:52:15 UTC

[jira] [Commented] (HIVE-2084) Upgrade datanucleus from 2.0.3 to 3.0.1

    [ https://issues.apache.org/jira/browse/HIVE-2084?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13604835#comment-13604835 ] 

Navis commented on HIVE-2084:
-----------------------------

Is there any progress on this? With hiveserver2, I've seen 100% CPU problem (seemed to be http://www.datanucleus.org/servlet/jira/browse/NUCCORE-559) more frequently. 
                
> 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.D5685.1.patch, 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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