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https://issues.apache.org/jira/browse/WW-3461?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Leigh Anderson updated WW-3461:
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Attachment: validatormanager.patch
> Don't hold locks as long when creating validators in
> AnnotationActionValidatorManager
> -------------------------------------------------------------------------------------
>
> Key: WW-3461
> URL: https://issues.apache.org/jira/browse/WW-3461
> Project: Struts 2
> Issue Type: Improvement
> Affects Versions: 2.1.6
> Reporter: Leigh Anderson
> Attachments: validatormanager.patch
>
>
> Under load, the lock held in AnnotationActionValidatorManager.getValidators
> on validatorCache becomes contended. This lock is currently held while all
> the validators are created. The attached patch reduces the scope of the lock
> to just doing the cache lookup + taking a defensive copy of the list of
> validators for that key. This improved throughput and latency in our tests.
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