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From "Edward Capriolo (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-1335) DataNucleus should use connection pooling
Date Thu, 06 May 2010 02:22:48 GMT

    [ https://issues.apache.org/jira/browse/HIVE-1335?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12864622#action_12864622
] 

Edward Capriolo commented on HIVE-1335:
---------------------------------------

No joy.

{noformat}
+        <dependency org="commons-dbcp" name="commons-dbcp" rev="1.2.2"/>
+        <dependency org="commons-pool" name="commons-pool" rev="1.2"/>
+        <dependency org="org.datanucleus" name="datanucleus-connectionpool" rev="1.0.2">
+          <exclude module="proxool" />
+          <exclude module="c3p0" />
+        </dependency>
{noformat}

Unfortunately the datanucleus-connectpool refuses to honor my request for commons-pool 1.2
and instead fetches 1.3, which ,you guest it, does not work. I am going to submit the original,
figuring out what ivy is trying to do is taking too long.

> DataNucleus should use connection pooling
> -----------------------------------------
>
>                 Key: HIVE-1335
>                 URL: https://issues.apache.org/jira/browse/HIVE-1335
>             Project: Hadoop Hive
>          Issue Type: Improvement
>            Reporter: Edward Capriolo
>            Assignee: Edward Capriolo
>             Fix For: 0.6.0
>
>         Attachments: commons-dbcp-1.2.2.jar, commons-dbcp.LICENSE, commons-pool-1.2.jar,
commons-pool.LICENSE, datanucleus-connectionpool-1.0.2.jar, datanucleus-connectionpool.LICENSE,
hive-1335.patch.txt
>
>
> Currently each Data Nucleus operation disconnects and reconnects to the MetaStore over
jdbc. Queries fail to even explain properly in cases where a table has many partitions. This
is fixed by enabling one parameter and including several jars.

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