Yogesh Rao created AMQ-6534:
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Summary: QueueBrowser can view messages being processed by
consumers which are not yet acknowledged
Key: AMQ-6534
URL: https://issues.apache.org/jira/browse/AMQ-6534
Project: ActiveMQ
Issue Type: Bug
Components: Broker
Affects Versions: 5.14.1
Reporter: Yogesh Rao
ActiveMQ's Queue Browser API returns messages list that includes the ones
which currently getting processed by a consumer (not sent the acknowledgment).
I have seen this behaviour in ActiveMQ 5.13.3 and 5.14.1
To replicate this issue following needs to be done.
1. Publish 3 messages to queue Test
2. In a stand alone code have a message listener which goes to sleep call of
onMessage() (sleep for 10 mins) (Session is transacted false and Auto
Acknowledge)
3. In a different Stand alone code have a queue browser code with no selector
specified.
We can see that QueueBrowser returns all the three messages instead of 2.
This behaviour differ from how Weblogic JMS, HornetQ and Apache Artemis work.
I am not sure if the above behaviour is intended. However it would be a great
if ActiveMQ provides a way for QueueBrowsers to not see unacknowledged messages.
Disscussion on ActiveMQ Dev Forum :-
http://activemq.2283324.n4.nabble.com/ActiveMQ-5-14-1-QueueBrowser-can-view-messages-being-processed-by-consumers-which-are-not-yet-unacknd-td4719662.html
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