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https://issues.apache.org/jira/browse/CAMEL-10215?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Claus Ibsen resolved CAMEL-10215.
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Resolution: Fixed
Assignee: Claus Ibsen
Fix Version/s: 2.17.3
2.16.4
Thanks for reporting and the PR
> EventDrivenPollingConsumer is not thread safe when used with ConsumerCache
> ---------------------------------------------------------------------------
>
> Key: CAMEL-10215
> URL: https://issues.apache.org/jira/browse/CAMEL-10215
> Project: Camel
> Issue Type: Bug
> Components: camel-core
> Affects Versions: 2.18.0
> Reporter: Siddharth Sharma
> Assignee: Claus Ibsen
> Fix For: 2.16.4, 2.17.3, 2.18.0
>
>
> For static endpoints, if DefaultConsumerTemplate#receive() is used,
> ConsumerCache will return the cached instance of PollingConsumer for every
> thread part of parallel processing of split/aggregate.
> Now, if EventDrivenPollingConsumer is used, returning same cache instance
> causes race condition in receive and receive(long) as the methods are not
> thread safe. The ordering of beforePoll, poll and afterPoll needs to be
> synchronized, otherwise the consumer might end up being suspended in
> afterPoll and the client whose beforePoll couldn't wake up the suspended
> thread will get no data.
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