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From "Ning Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-2084) Upgrade datanucleus to from 2.0.3 to 2.2.3
Date Thu, 31 Mar 2011 06:29:05 GMT

    [ https://issues.apache.org/jira/browse/HIVE-2084?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13013852#comment-13013852
] 

Ning Zhang commented on HIVE-2084:
----------------------------------

Devaraj/Mac, could you also test this patch on your production environment if you have other
testing scripts? I'm testing the script uploaded by Namit in HIVE-1862 and this patch seems
working fine so far. 

> Upgrade datanucleus to from 2.0.3 to 2.2.3
> ------------------------------------------
>
>                 Key: HIVE-2084
>                 URL: https://issues.apache.org/jira/browse/HIVE-2084
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Ning Zhang
>            Assignee: Ning Zhang
>         Attachments: 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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