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From "Michael Pilone (JIRA)" <>
Subject [jira] [Created] (AMQ-3938) Memory Leak w/Temporary Queues and JMX
Date Wed, 18 Jul 2012 16:23:34 GMT
Michael Pilone created AMQ-3938:

             Summary: Memory Leak w/Temporary Queues and JMX
                 Key: AMQ-3938
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker, JMX
    Affects Versions: 5.6.0
         Environment: Java 6
ActiveMQ 5.6.0
Apache Camel 2.10.0
Network of brokers (2 nodes)
            Reporter: Michael Pilone

I'm seeing a slow memory leak in our broker process which appears to be related to temporary
queues and JMX. We had major memory leak problems before, but the 5.6.0 release fixed the
majority of them. This leak seems to take about 2 weeks to fill 512MB heap but ultimately
it will bring down the JVM.
The process which eventually runs out of memory simply runs an embeded broker which other
clients connected to it via TCP. There are a couple static Camel routes, but nothing major
in this process. Other clients (connected via TCP) make heavy use of pooled connections, Apache
Camel, and temporary queues for request/reply messaging.
I'm still looking into the issue but I've attached a MAT memory analysis to see if anyone
else has seen a related problem. It looks like the temporary queues are getting registered
in JMX and never removed but I'm just guessing right now.

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