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From "patrice (JIRA)" <j...@apache.org>
Subject [jira] Created: (AMQ-1351) Multiple consumers on a single queue, each with a transacted session, fails; only one consumer sees messages; also message loss after a few of receiveNoWait/rollback
Date Sat, 28 Jul 2007 18:02:48 GMT
Multiple consumers on a single queue, each with a transacted session, fails; only one consumer
sees messages; also message loss after a few of receiveNoWait/rollback
---------------------------------------------------------------------------------------------------------------------------------------------------------------------

                 Key: AMQ-1351
                 URL: https://issues.apache.org/activemq/browse/AMQ-1351
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker
    Affects Versions: 4.1.1
         Environment: windows XP SP2
            Reporter: patrice


Setup:
one queue with a one producer and five consumers; each consumer has a transacted session over
a single connection.; each consumer is invoked in turn using consumer.receiveNoWait().
I have also tried this with a connection per consumer, instead of a single connection.

Result:
Only one consumer sees messages on the queue;  after a number of receiveNoWait and rollback
(always for the one consumer that can consume), the message disappears (???) and further calls
to the consumer will now receive the next message in the queue.

I see many messages concerning failures of multiple consumers on a single queue. If this is
really the case, this makes ActiveMQ useless, which is a grave issue for me since I was blindly
counting on this for a prototype presentation.

I've looked in your test suite for multiple consumers on separate sessions, but to no avail.
Is there one ?

Any help will be appreciated.

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