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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 edited comment on AMQ-1351 at 7/28/07 9:30 PM:
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I suspect that the issue of only one consumer seeing messages is due to some
message batching by the broker for each session (load balancing?). 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 ?
was:
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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