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https://issues.apache.org/jira/browse/ARTEMIS-3093?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Clebert Suconic reassigned ARTEMIS-3093:
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Assignee: Clebert Suconic
> Message Order broken with Core Protocol when rolling back transactions
> ----------------------------------------------------------------------
>
> Key: ARTEMIS-3093
> URL: https://issues.apache.org/jira/browse/ARTEMIS-3093
> Project: ActiveMQ Artemis
> Issue Type: Bug
> Components: Broker
> Affects Versions: 2.16.0
> Reporter: John Behm
> Assignee: Clebert Suconic
> Priority: Critical
> Labels: artemis, bug, order, queue
> Time Spent: 10m
> Remaining Estimate: 0h
>
> ARTEMIS-2458
> This issue still persists.
>
> Consuming from a queue with two threads with distinct sessions while rolling
> back directly in each thread when receiving a message breaks the whole order
> of the queue. Even with delays of 500ms.
> The queue/addresse is configured as ANYCAST queue.
>
> (In 2.10 this issue persists as well.)
> Basic Test setup is like this:
> You have a non-clustered single instance of Artemis.
> You do have a redelivery-delay of 0.
> You fill an anycast queue with 1000/10000 ordered messages.
> You disconnect your producer and start the two or more consumers that try to
> fetch all of the messages from that exact same queue, but can only get one,
> as you always roll back the session.
> Each time any of those two(or more) consumers receives a message, they
> rollback the session instantly and sleep 0 to 500 ms.
> After rolling back every time you receive a message on any of your consumer
> threads, you expect to always get the message with the content "0".
> After like ten iterations of this ping-pong rollback between your two
> consumer threads, you start to get completely random messages, not even
> within the range of 0 through 10, but completely arbitrary ones from within
> the queue.
> You disconnect your consumers and try dumping the queue. You get a completely
> unordered message queue.
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