[jira] Commented: (OPENJPA-1469) Turn on DataCache by default

["Kevin Sutter (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/OPENJPA-1469?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12802340#action_12802340 ] 

Kevin Sutter commented on OPENJPA-1469:
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Currently, the QueryCache is turned "on" by default if the DataCache is turned "on".  But, we're finding some performance issues with the default QueryCache (reference OPENJPA-1471).  Depending on how quickly we can turn around openjpa-1471, this JIRA may enable DataCache and disable QueryCache.  I'm running the JUnit bucket right now with this configuration to see if this combination introduces any functional changes.

> Turn on DataCache by default
> ----------------------------
>
>                 Key: OPENJPA-1469
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-1469
>             Project: OpenJPA
>          Issue Type: Improvement
>          Components: datacache
>    Affects Versions: 2.0.0-M1, 2.0.0-M2, 2.0.0-M3, 2.0.0-M4
>            Reporter: Kevin Sutter
>             Fix For: 2.0.0
>
>
> I'm proposing that we change the default behavior for the DataCache.  Currently, the DataCache is turned off by default.  Our competition is turning on their L2 cache by default.  Thus, out-of-the-box comparisons are killing us.  We have to explain the difference, get them to change the configuration one way or the other for apples-to-apples comparisons, and then re-run the benchmark.  By that time, it's too late.  We already lost.
> Due to the upcoming 2.0.0 release, it seems like a good time to change this default.  Please comment directly to this JIRA.
> Thanks,
> Kevin

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