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https://issues.apache.org/jira/browse/ARTEMIS-2955?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17217427#comment-17217427
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Mikko commented on ARTEMIS-2955:
--------------------------------
And yeah, setting poolPreparedStatements to true should work, if I've done
everything right. The reason I did not enable it on my pull request was that
it's not something universal that's available on alternative datasources, and
couldn't quite figure out whether implementation changes were needed to prepare
for use of other datasources.
> commons-dbcp2 performance issue with Derby Embedded DBMS
> --------------------------------------------------------
>
> Key: ARTEMIS-2955
> URL: https://issues.apache.org/jira/browse/ARTEMIS-2955
> Project: ActiveMQ Artemis
> Issue Type: Bug
> Components: Broker, Tests
> Affects Versions: 2.16.0
> Reporter: Francesco Nigro
> Assignee: Francesco Nigro
> Priority: Major
> Attachments: image-2020-10-20-09-08-45-390.png,
> image-2020-10-20-09-10-10-644.png, pooling_off.svg, pooling_on.svg,
> screenshot-1.png, screenshot-2.png
>
>
> The test suite has shown an increase in duration of 30 minutes going from to
> 2:30 to 3 hours: it seems related to integration paging tests running on
> Embedded Derby with the changes of
> [ARTEMIS-2823|https://issues.apache.org/jira/browse/ARTEMIS-2823].
> After some profiling sessions on
> org/apache/activemq/artemis/tests/integration/paging/PagingTest.testQueueRemoveAll
> it seems that using commons-dbcp2 with Embedded Derby isn't working as
> expected:
> !image-2020-10-20-09-08-45-390.png!
> while, if we switch to
> [EmbeddedDataSource|https://db.apache.org/derby/docs/10.13/publishedapi/org/apache/derby/jdbc/EmbeddedDataSource.html]
> we have
> !image-2020-10-20-09-10-10-644.png!
> By not using commons-dbcp2 we get roughtly a ~10X improvement in performance:
> it seems that commons-dbcp2 is forcing to setup from the ground the prepared
> statement each time, while EmbeddedDataSource nope. Specifically it seems
> related to Derby GenericActivationHolder.
> I suggest to disable commons-dbcp2 for Derby and investigate if it could
> happen in a real broker too.
>
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