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From "Carl Steinbach (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-2084) Upgrade datanucleus from 2.0.3 to 2.2.3
Date Thu, 31 Mar 2011 20:43:05 GMT

     [ https://issues.apache.org/jira/browse/HIVE-2084?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Carl Steinbach updated HIVE-2084:
---------------------------------

    Status: Open  (was: Patch Available)

@Ning: Why did you modify the class mapping in package.jdo? Does this require a metastore
upgrade script?

> Upgrade datanucleus 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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