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https://issues.apache.org/activemq/browse/AMQ-1351?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_39784
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patrice commented on AMQ-1351:
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I suspect the issue of only consumer seeing messages is due to some message
batching by the broker for each session. If this is the case, what is the
parameter ?
Concerning the message evaporating after a number of rollbacks, this may also
be configurable, but where is the message evaporating to ? Is there a default
deadletter repository somewhere ?
> 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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