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Posted to dev@hive.apache.org by "Esteban Gutierrez (JIRA)" <ji...@apache.org> on 2012/06/28 23:33:43 UTC

[jira] [Created] (HIVE-3214) Use datanucleus performance settings in HiveConf

Esteban Gutierrez created HIVE-3214:
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             Summary: Use datanucleus performance settings in HiveConf
                 Key: HIVE-3214
                 URL: https://issues.apache.org/jira/browse/HIVE-3214
             Project: Hive
          Issue Type: Bug
          Components: Database/Schema, Metastore
    Affects Versions: 0.9.0
            Reporter: Esteban Gutierrez
            Assignee: Esteban Gutierrez
            Priority: Trivial


Datanucleus recommends the following properties to be enabled for better performance:

http://www.datanucleus.org/products/accessplatform/performance_tuning.html

Some of this settings like "datanucleus.validateTables" can improve access performance to the metastore database by reducing the number of operations to the RDBMS or in some cases if bunch of DELETME* tables get stuck due some misconfiguration that won't block the ObjectStore until datanuclues completes the validatation of all the tables.

For backwards compatibility, hive-site.xml should provide the old settings.





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