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https://issues.apache.org/jira/browse/OPENJPA-2773?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16759143#comment-16759143
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Mark Struberg commented on OPENJPA-2773:
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the default is 8/8/0
https://commons.apache.org/proper/commons-dbcp/configuration.html
We now have 10/10/0. So we are at really pretty close now.
> set minIdle to > 0 in DBCPDriverDataSource
> ------------------------------------------
>
> Key: OPENJPA-2773
> URL: https://issues.apache.org/jira/browse/OPENJPA-2773
> Project: OpenJPA
> Issue Type: Improvement
> Components: jdbc
> Affects Versions: 3.0.0
> Reporter: Mark Struberg
> Assignee: Mark Struberg
> Priority: Major
> Fix For: 3.0.1
>
>
> Right now our {{DBCPDriverDataSource}} by default sets the {{maxIdle}} to 1.
> This is not wrong but also not really good in terms of performance.
> It is usually much better to keep it at a much higher number. Usually
> somewhere around {{maxActive}}, except when maxActive is really high.
> So I'd rather keep it at 10 or even at maxActive if this param is set.
> If the connections are not used, then they will get unlocked after some time
> anyway.
> But keeping the number 1 for {{maxIdle}} basically disables the pool, which
> is not wise.
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