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Posted to issues@spark.apache.org by "Reynold Xin (JIRA)" <ji...@apache.org> on 2015/06/05 02:34:38 UTC
[jira] [Resolved] (SPARK-8106) Set derby.system.durability=test in
order to speed up Hive compatibility tests
[ https://issues.apache.org/jira/browse/SPARK-8106?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Reynold Xin resolved SPARK-8106.
--------------------------------
Resolution: Fixed
Fix Version/s: 1.5.0
> Set derby.system.durability=test in order to speed up Hive compatibility tests
> ------------------------------------------------------------------------------
>
> Key: SPARK-8106
> URL: https://issues.apache.org/jira/browse/SPARK-8106
> Project: Spark
> Issue Type: Improvement
> Components: Build, SQL, Tests
> Reporter: Josh Rosen
> Assignee: Josh Rosen
> Fix For: 1.5.0
>
>
> Derby has a configuration property named {{derby.system.durability}} that disables I/O synchronization calls for many writes. This sacrifices durability but can result in large performance gains, which is appropriate for tests.
> We should enable this in our test system properties in order to speed up the Hive compatibility tests. I saw 2-3x speedups locally with this change.
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