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From greenbean <>
Subject Re: Deadlock 4.0.1 Delivery
Date Wed, 23 Aug 2006 14:56:58 GMT

A note:  I was successful in reproducing this problem using activemq 4.0.2.

I did not explicitly mention that we set the maximumRedeliveries very high
since we want the message to be redelivered until the MDP is successul in
the request to a SOAP server.  It usually takes serveral hundred rollback
and redeliver cycles for the deadlock to occur.  So the chances of occurance
are pretty low.

greenbean wrote:
> I have a mdp that attempts to connect to a soap server.  The MDP does a
> rollback and the message is redelivered on failure.  The soap server was
> down today by chance.  I noticed that the rollback and redelivery stopped
> after a period of time.  I ran the Jboss through JProfiler and it reported
> a deadlock situation with the ServerSessionPoolImp used by the ActiveMQ
> Schedulers.  Is this a known issue?
> I can attempt to provide a test case if needed.  However, I thought I
> would provide some of the output from JProfiler first to see if that is
> enough to explain it, or get it fixed.
> We deploy activemq 4.0.1 into JBoss 4.0.3SP1 as a RAR.  We use Jencks from
> that I pulled from CVS a month or two ago so it would work correctly with
> activemq 4.
> Current_monitor_usage.csv 

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