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https://issues.apache.org/jira/browse/QPID-6647?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rob Godfrey reassigned QPID-6647:
---------------------------------
Assignee: Rob Godfrey
> Thread Leak when Connection is closed while a MessageConsumer is in a
> receive()
> -------------------------------------------------------------------------------
>
> Key: QPID-6647
> URL: https://issues.apache.org/jira/browse/QPID-6647
> Project: Qpid
> Issue Type: Bug
> Components: Java Client
> Affects Versions: 0.32
> Environment: Tested in the following environments:
> OSX 10.10.4 with Oracle Java SE Runtime 1.8.0_45-b14
> OSX 10.10.4 with Oracle Java SE Runtime 1.7.0_67
> RHEL 6.3 with OpenJDK RE Java 1.7.0_71 (rhel-2.5.3.2.el6_6-x86_64 u71-b14)
> Reporter: Marty B
> Assignee: Rob Godfrey
> Attachments: QPID-6647.tar.bz2, Thread usage over time.png
>
>
> A thread leak occurs in our environment running the QPID 0.32 Java client
> over time. As best as I can tell from the reproduction code and
> troubleshooting with jconsole the Dispatcher-X-Conn-X threads are not always
> getting cleaned up. It appears to happen when the Connection is interrupted
> / closed while the MessageConsumer is in receive() but I don't know that for
> a fact.
> I've attached a zip with some demo code and a gradle build script that
> reproduces the problem.
> Steps to reproduce:
> 1. Unzip archive.
> 2. Start up a QPID broker (tried with Java and C++, no difference but I
> didn't expect to see one)
> 3. Run ./gradlew run
> -PbrokerUrl="amqp://guest:guest@localhost/default?brokerlist='tcp://your.qpid.broker:5672?heartbeat='5'&retries='5'&connectdelay='5000''"
> -Pconsumers=100 -Pruntime=30
> 4. Launch jconsole and connect to the {{Main ....}} process.
> 5. Switch to the Threads tab and watch that it grows over time and the
> Dispatcher-X-Conn-X threads continue to accumulate.
> *Note:* I disabled the WARN and INFO error logging from QPID since it is
> _very_ spammy with thrown InterruptedExceptions and makes it hard to see any
> other errors that pop up. That can be changed by changing the system
> property being sent to the slf4j simple logger set in build.gradle.
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