[jira] [Closed] (ARTEMIS-2955) commons-dbcp2 performance issue with Derby Embedded DBMS

["Clebert Suconic (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARTEMIS-2955?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Clebert Suconic closed ARTEMIS-2955.
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> 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
>             Fix For: 2.16.0
>
>         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
>
>          Time Spent: 3h 40m
>  Remaining Estimate: 0h
>
> 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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