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https://issues.apache.org/activemq/browse/AMQ-1468?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hiram Chirino resolved AMQ-1468.
--------------------------------
Resolution: Fixed
Yeah patch was not really applicable since synchronization are now more fine
gained.
> Deadlock between ActiveMQTransport and ActiveMQScheduler
> --------------------------------------------------------
>
> Key: AMQ-1468
> URL: https://issues.apache.org/activemq/browse/AMQ-1468
> Project: ActiveMQ
> Issue Type: Bug
> Reporter: Nicky Sandhu
> Assignee: Hiram Chirino
> Priority: Critical
> Attachments: patch-deadlock-inactivitymonitor.txt
>
>
> The ActiveMQTransport thread waits on InactivityMonitor and the
> ActiveMQScheduler waits on ManagedTransportConnection and each thread owns
> the monitor on the other. Here are the details against svn rev # 585186
> {code}
> ----------------------------------------------------------------------------------------------------------------------------------------------
> Name: ActiveMQ Scheduler
> State: BLOCKED on [EMAIL PROTECTED] owned by: ActiveMQ Transport:
> tcp:///167.235.7.27:4470
> Total blocked: 8 Total waited: 1,931
> Stack trace:
> org.apache.activemq.broker.TransportConnection.stop(TransportConnection.java:865)
> org.apache.activemq.util.ServiceSupport.dispose(ServiceSupport.java:40)
> org.apache.activemq.broker.TransportConnection.serviceTransportException(TransportConnection.java:206)
> org.apache.activemq.broker.TransportConnection$1.onException(TransportConnection.java:185)
> org.apache.activemq.transport.TransportFilter.onException(TransportFilter.java:98)
> org.apache.activemq.transport.TransportFilter.onException(TransportFilter.java:98)
> org.apache.activemq.transport.WireFormatNegotiator.onException(WireFormatNegotiator.java:143)
> org.apache.activemq.transport.InactivityMonitor.onException(InactivityMonitor.java:155)
> org.apache.activemq.transport.InactivityMonitor.writeCheck(InactivityMonitor.java:81)
> - locked [EMAIL PROTECTED]
> org.apache.activemq.transport.InactivityMonitor$2.run(InactivityMonitor.java:56)
> org.apache.activemq.thread.Scheduler$SchedulerTimerTask.run(Scheduler.java:36)
> java.util.TimerThread.mainLoop(Timer.java:512)
> java.util.TimerThread.run(Timer.java:462)
> --------------------------------------------------------------------------------------------------------------------------------------------------
> Name: ActiveMQ Transport: tcp:///167.235.7.27:4470
> State: BLOCKED on [EMAIL PROTECTED] owned by: ActiveMQ Scheduler
> Total blocked: 1 Total waited: 2
> Stack trace:
> org.apache.activemq.transport.InactivityMonitor.oneway(InactivityMonitor.java:135)
> org.apache.activemq.transport.TransportFilter.oneway(TransportFilter.java:82)
> org.apache.activemq.transport.WireFormatNegotiator.oneway(WireFormatNegotiator.java:91)
> org.apache.activemq.transport.MutexTransport.oneway(MutexTransport.java:40)
> - locked [EMAIL PROTECTED]
> org.apache.activemq.broker.TransportConnection.dispatch(TransportConnection.java:1147)
> org.apache.activemq.broker.TransportConnection.processDispatch(TransportConnection.java:766)
> org.apache.activemq.broker.TransportConnection.dispatchSync(TransportConnection.java:727)
> org.apache.activemq.broker.region.PrefetchSubscription.dispatch(PrefetchSubscription.java:459)
> - locked [EMAIL PROTECTED]
> org.apache.activemq.broker.region.QueueSubscription.dispatch(QueueSubscription.java:166)
> org.apache.activemq.broker.region.PrefetchSubscription.add(PrefetchSubscription.java:123)
> - locked [EMAIL PROTECTED]
> org.apache.activemq.broker.region.Queue.addSubscription(Queue.java:252)
> - locked [EMAIL PROTECTED]
> - locked [EMAIL PROTECTED]
> org.apache.activemq.broker.region.AbstractRegion.addConsumer(AbstractRegion.java:262)
> - locked [EMAIL PROTECTED]
> org.apache.activemq.broker.region.RegionBroker.addConsumer(RegionBroker.java:335)
> org.apache.activemq.broker.BrokerFilter.addConsumer(BrokerFilter.java:85)
> org.apache.activemq.advisory.AdvisoryBroker.addConsumer(AdvisoryBroker.java:79)
> org.apache.activemq.broker.BrokerFilter.addConsumer(BrokerFilter.java:85)
> org.apache.activemq.broker.MutableBrokerFilter.addConsumer(MutableBrokerFilter.java:95)
> org.apache.activemq.broker.TransportConnection.processAddConsumer(TransportConnection.java:525)
> - locked [EMAIL PROTECTED]
> org.apache.activemq.command.ConsumerInfo.visit(ConsumerInfo.java:334)
> org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:281)
> org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:178)
> org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:67)
> org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:134)
> org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:124)
> - locked [EMAIL PROTECTED]
> org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:83)
> org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:183)
> org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:170)
> java.lang.Thread.run(Thread.java:619)
> {code}
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