[jboss-remoting-issues] [JBoss JIRA] Closed: (JBREM-942) A deadlock encountered on ConnectionValidator
Ron Sigal (JIRA)
jira-events at lists.jboss.org
Fri Mar 28 02:51:50 EDT 2008
[ http://jira.jboss.com/jira/browse/JBREM-942?page=all ]
Ron Sigal closed JBREM-942.
---------------------------
Resolution: Done
The simplest solution is to eliminate one of the locks: only one lock is necessary. That has been done.
> A deadlock encountered on ConnectionValidator
> ----------------------------------------------
>
> Key: JBREM-942
> URL: http://jira.jboss.com/jira/browse/JBREM-942
> Project: JBoss Remoting
> Issue Type: Bug
> Security Level: Public(Everyone can see)
> Components: transport
> Affects Versions: 2.2.2.SP5
> Environment: JBoss-EAP-4.2, JBossMessaging-1.4.0-SP3, JBossRemoting-2.2.2-SP5
> Reporter: Tyronne Wickramarathne
> Assigned To: Ron Sigal
> Priority: Critical
> Fix For: 2.2.2.SP7
>
>
> This deadlock occurred on JBREM when a JBossMessaging Bridge was set and consuming messages. here's the StackTrace :
> Found one Java-level deadlock:
> =============================
> "Thread-278":
> waiting to lock monitor 0x08128544 (object 0xce8b25e0, a java.lang.Object),
> which is held by "Timer-4"
> "Timer-4":
> waiting to lock monitor 0x08129160 (object 0xce89f508, a java.util.ArrayList),
> which is held by "Thread-278"
> Java stack information for the threads listed above:
> ===================================================
> "Thread-278":
> at org.jboss.remoting.ConnectionValidator.doStop(ConnectionValidator.java:526)
> - waiting to lock <0xce8b25e0> (a java.lang.Object)
> at org.jboss.remoting.ConnectionValidator.stop(ConnectionValidator.java:252)
> at org.jboss.remoting.ConnectionValidator.removeConnectionListener(ConnectionValidator.java:344)
> - locked <0xce89f508> (a java.util.ArrayList)
> at org.jboss.remoting.Client.removeConnectionListener(Client.java:398)
> at org.jboss.jms.client.remoting.JMSRemotingConnection.removeConnectionListener(JMSRemotingConnection.java:493)
> - locked <0xce8b18c8> (a org.jboss.jms.client.remoting.JMSRemotingConnection)
> at org.jboss.jms.client.container.ConnectionAspect.handleClose(ConnectionAspect.java:184)
> at sun.reflect.GeneratedMethodAccessor134.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.jboss.aop.advice.PerInstanceAdvice.invoke(PerInstanceAdvice.java:121)
> at org.jboss.jms.client.delegate.ClientConnectionDelegate$close_N4742752445160157748.invokeNext(ClientConnectionDelegate$close_N4742752445160157748.java)
> at org.jboss.jms.client.container.FailoverValveInterceptor.invoke(FailoverValveInterceptor.java:92)
> at org.jboss.aop.advice.PerInstanceInterceptor.invoke(PerInstanceInterceptor.java:105)
> at org.jboss.jms.client.delegate.ClientConnectionDelegate$close_N4742752445160157748.invokeNext(ClientConnectionDelegate$close_N4742752445160157748.java)
> at org.jboss.jms.client.container.ClosedInterceptor.invoke(ClosedInterceptor.java:170)
> at org.jboss.aop.advice.PerInstanceInterceptor.invoke(PerInstanceInterceptor.java:105)
> at org.jboss.jms.client.delegate.ClientConnectionDelegate$close_N4742752445160157748.invokeNext(ClientConnectionDelegate$close_N4742752445160157748.java)
> at org.jboss.jms.client.delegate.ClientConnectionDelegate.close(ClientConnectionDelegate.java)
> at org.jboss.jms.client.JBossConnection.close(JBossConnection.java:132)
> at org.jboss.jms.server.bridge.Bridge.cleanup(Bridge.java:1098)
> at org.jboss.jms.server.bridge.Bridge.access$1100(Bridge.java:66)
> at org.jboss.jms.server.bridge.Bridge$FailureHandler.run(Bridge.java:1496)
> at java.lang.Thread.run(Thread.java:619)
> "Timer-4":
> at org.jboss.remoting.ConnectionValidator.notifyListeners(ConnectionValidator.java:553)
> - waiting to lock <0xce89f508> (a java.util.ArrayList)
> at org.jboss.remoting.ConnectionValidator.run(ConnectionValidator.java:286)
> - locked <0xce8b25e0> (a java.lang.Object)
> at java.util.TimerThread.mainLoop(Timer.java:512)
> at java.util.TimerThread.run(Timer.java:462)
> Found 1 deadlock.
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