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From "Bruce Snyder (JIRA)" <>
Subject [jira] Commented: (AMQ-2294) MessageProducer hangs when using many concurrent sessions
Date Wed, 17 Jun 2009 19:04:35 GMT


Bruce Snyder commented on AMQ-2294:

You indicated that you're using the default configuration which limits the size of all queues
and topics to 5mb and, by default in ActiveMQ, [producer flow control|]
is enabled. So either the destination to which you're sending has filled up or the has flow
control kicked in and paused the producers. Chances are this is the producer flow control.

> MessageProducer hangs when using many concurrent sessions
> ---------------------------------------------------------
>                 Key: AMQ-2294
>                 URL:
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker, JMS client
>    Affects Versions: 5.2.0
>         Environment: I am using the default activemq.xml config. tested and reproduced
on both windows and linux machines
>            Reporter: Puneet Gupta
>         Attachments: Producer_ThreadDump.txt, ServerDebugLog_ThreadDump.txt
> If you create a client (producer) that creates 25 non-transacted sessions and concurrently
starts sending messages. The producer will hang after sending exactly 2560 1K messages. 
> This behavior is very easily reproducible.

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