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From "Phabricator (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-2560) speed up Hive unit tests by configuring Derby to be non-durable
Date Tue, 08 Nov 2011 22:25:52 GMT

    [ https://issues.apache.org/jira/browse/HIVE-2560?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13146608#comment-13146608
] 

Phabricator commented on HIVE-2560:
-----------------------------------

jsichi has commented on the revision "HIVE-2560 [jira] speed up Hive unit tests by configuring
Derby to be non-durable".

  You should be able to verify that the setting has been picked up by seeing this in derby.log:

  WARNING: The database is booted with derby.system.durability=test.
  In this mode, it is possible that database may not be able to recover, committed transactions
may be lost, and the database may be in an inconsistent state. Please use this mode only when
these consequences are acceptable.


REVISION DETAIL
  https://reviews.facebook.net/D327

                
> speed up Hive unit tests by configuring Derby to be non-durable
> ---------------------------------------------------------------
>
>                 Key: HIVE-2560
>                 URL: https://issues.apache.org/jira/browse/HIVE-2560
>             Project: Hive
>          Issue Type: Improvement
>          Components: Testing Infrastructure
>    Affects Versions: 0.9.0
>            Reporter: John Sichi
>            Assignee: Marek Sapota
>         Attachments: D327.1.patch, D327.2.patch
>
>
> Try setting derby.system.durability=test to see if it can speed up metastore writes while
running Hive ant test.
> http://db.apache.org/derby/docs/10.1/tuning/rtunproperdurability.html

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