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https://issues.apache.org/jira/browse/POOL-277?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14141772#comment-14141772
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Bernd Eckenfels commented on POOL-277:
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Hm, tests fail for me because counter can be 0. I fixed that in my patch. I am
not sure about the potential overflow in there (and I am waiting for feedback
on dev@commons).
> Monitor contention at BaseGenericObjectPool
> -------------------------------------------
>
> Key: POOL-277
> URL: https://issues.apache.org/jira/browse/POOL-277
> Project: Commons Pool
> Issue Type: Improvement
> Affects Versions: 2.2
> Reporter: Lucas Pouzac
> Labels: concurrency, performance
> Fix For: 2.3
>
> Attachments: monitor_contention_basegenericobjectpool.png,
> monitor_contention_basegenericobjectpool_after_pull_request.png,
> nonlockstats.diff
>
>
> Updating JMX causes synchronization while the service is secondary. See
> screenshot.
> I create a Pull Request [#1|https://github.com/apache/commons-pool/pull/1].
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