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From "John Sichi (JIRA)" <>
Subject [jira] Commented: (HIVE-1335) DataNucleus should use connection pooling
Date Wed, 05 May 2010 22:48:16 GMT


John Sichi commented on HIVE-1335:

Heh, whoops, looks like they made datanucleus-connectionpool depend on every available pool
implentation (plus datanucleus itself).  There may be a way to tell it to fetch just datanucleus-connectionpool
without its dependencies.

> DataNucleus should use connection pooling
> -----------------------------------------
>                 Key: HIVE-1335
>                 URL:
>             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,
> 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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