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https://issues.apache.org/jira/browse/DBCP-436?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14984960#comment-14984960
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Mark Thomas commented on DBCP-436:
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Tracking whether or not a transaction is active looks like 'fun'. I agree that
the driver is likely to be a much better place to do this. I'm fine with
WONT_FIX.
> Avoid executing ROLLBACK when transaction is not active
> -------------------------------------------------------
>
> Key: DBCP-436
> URL: https://issues.apache.org/jira/browse/DBCP-436
> Project: Commons Dbcp
> Issue Type: Improvement
> Reporter: Michael Mikhulya
> Labels: performance
> Fix For: 2.2
>
>
> {{rollbackOnReturn}} terminates the transaction by calling {{rollback}} on
> the connection as it is returned to the pool.
> It hurts performance.
> I suggest to don't call {{rollback}} if transaction is not active.
> Such improvement is done in HikariCP:
> https://github.com/brettwooldridge/HikariCP/issues/177
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