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From "James Green (JIRA)" <>
Subject [jira] Created: (AMQ-2923) Clients are send messages out of producer-order
Date Thu, 16 Sep 2010 15:22:40 GMT
Clients are send messages out of producer-order

                 Key: AMQ-2923
             Project: ActiveMQ
          Issue Type: Bug
    Affects Versions: 5.4.0
         Environment: Ubuntu 10.04.
            Reporter: James Green
            Priority: Critical

On a single host:
Producer P1 posts message M1 to Queue Q.
Producer P2 posts message M2 to Queue Q a few seconds later.

Consumer C1 comes a few seconds further along along and begins reading from Queue Q. Occassionally,
C1 receives M2 before M1.

This is what I'm seeing in two PHP application connecting to ActiveMQ via STOMP. After dozens
of tests I've finally reproduced it with trace=true. I am not sure what environmental conditions
cause this to occur.

I will attach a log. Watch for destination:/queue/Outbound.Account.200000 which is Q. M1 has
a reason="MJINITIALSTATE" and M2 has a reason="E----:Confirmed..."

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