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From "Brian Moran (JIRA)" <j...@apache.org>
Subject [jira] Created: (AMQ-2155) ActiveMQ with STOMP producer, multiple consumers -- ActiveMQ doesn't distribute messages to additional consumers.
Date Tue, 10 Mar 2009 22:28:39 GMT
ActiveMQ with STOMP producer, multiple consumers -- ActiveMQ doesn't distribute messages to
additional consumers.
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                 Key: AMQ-2155
                 URL: https://issues.apache.org/activemq/browse/AMQ-2155
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker
    Affects Versions: 5.2.0, 5.1.0
         Environment: mac osx; rails 2.1.1; ruby 1.8.6;
            Reporter: Brian Moran


Using the stock ActiveMQ 5.2.0 install, with a very small producer and consumer (see source
code here: http://groups.google.com/group/activemessaging-discuss/browse_thread/thread/0b45ae6f030a13af#)
, using client :ack mode;
Adding additional consumers to a queue results has no affect on message distribution -- only
the originally connected consumers receive the messages UNTIL the queue is empty, or the original
message consumes disconnect. One would LIKE to be able to add additional consumers for a queue,
and have the broker distrubute messages to those consumers -- this does NOT happen in 5.1.0
and 5.2.0.  

ALSO, when there are multiple consumers attached to the broker, performance can degrade so
that only one or two consumers are being sent messages. THIS may be related, perhaps not.

ATTACHED is a dump of the STOMP TRANSPORT trace. 




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