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From "Timothy Bish (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMQ-3741) Deadlock on Broker when JMX is enabled
Date Mon, 27 Feb 2012 14:41:09 GMT

    [ https://issues.apache.org/jira/browse/AMQ-3741?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13217204#comment-13217204
] 

Timothy Bish commented on AMQ-3741:
-----------------------------------

Do you have a unit test that shows the issue?  Have you tested against the latest 5.6-SNAPSHOT?
 This sounds like something that's already been fixed.
                
> Deadlock on Broker when JMX is enabled
> --------------------------------------
>
>                 Key: AMQ-3741
>                 URL: https://issues.apache.org/jira/browse/AMQ-3741
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker, JMX
>    Affects Versions: 5.4.3, 5.5.1
>            Reporter: Krzysztof Olszewski
>            Priority: Critical
>
> With JMX enabled a deadlock might occur due to the fact that there are two broker objects
with common Destinations.
> Let me provide you with a stacktrace that will clear this up:
> Thread: Thread[ActiveMQ Transport: ssl:///10.0.0.1:52293,5,spring-osgi-extender[435a3a]-threads]
> 	Name: ActiveMQ Transport: ssl:///10.0.0.1:52293
> 	Priority: 5
> 	Status: BLOCKED
> 	StackTrace:
> 		org.apache.activemq.broker.region.virtual.VirtualDestinationInterceptor.intercept(VirtualDestinationInterceptor.java:47)
>       ->  public synchronized Destination intercept(...)
> 		org.apache.activemq.broker.region.CompositeDestinationInterceptor.intercept(CompositeDestinationInterceptor.java:38)
> 		org.apache.activemq.broker.region.AbstractRegion.addDestination(AbstractRegion.java:127)
>       ->  synchronized (destinationsMutex)
> 		org.apache.activemq.broker.region.RegionBroker.addDestination(RegionBroker.java:298)
> 		org.apache.activemq.broker.BrokerFilter.addDestination(BrokerFilter.java:145)
> 		org.apache.activemq.advisory.AdvisoryBroker.addDestination(AdvisoryBroker.java:145)
> 		org.apache.activemq.broker.BrokerFilter.addDestination(BrokerFilter.java:145)
> 		org.apache.activemq.broker.BrokerFilter.addDestination(BrokerFilter.java:145)
> 		org.apache.activemq.broker.MutableBrokerFilter.addDestination(MutableBrokerFilter.java:151)
> 		org.apache.activemq.broker.BrokerFilter.addDestination(BrokerFilter.java:145)
> 		org.apache.activemq.broker.BrokerFilter.addDestination(BrokerFilter.java:145)
> 		org.apache.activemq.broker.MutableBrokerFilter.addDestination(MutableBrokerFilter.java:151)
> 		org.apache.activemq.broker.region.RegionBroker.addProducer(RegionBroker.java:396)
>       -> synchronized (purgeInactiveDestinationsTask)
> 		org.apache.activemq.broker.BrokerFilter.addProducer(BrokerFilter.java:93)
> 		org.apache.activemq.advisory.AdvisoryBroker.addProducer(AdvisoryBroker.java:133)
> 		org.apache.activemq.broker.CompositeDestinationBroker.addProducer(CompositeDestinationBroker.java:56)
> 		org.apache.activemq.broker.BrokerFilter.addProducer(BrokerFilter.java:93)
> 		org.apache.activemq.broker.MutableBrokerFilter.addProducer(MutableBrokerFilter.java:99)
> 		org.apache.activemq.broker.BrokerFilter.addProducer(BrokerFilter.java:93)
> 		org.apache.activemq.broker.BrokerFilter.addProducer(BrokerFilter.java:93)
> 		org.apache.activemq.broker.MutableBrokerFilter.addProducer(MutableBrokerFilter.java:99)
> 		org.apache.activemq.broker.TransportConnection.processAddProducer(TransportConnection.java:507)
> 		org.apache.activemq.command.ProducerInfo.visit(ProducerInfo.java:105)
> 		org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:306)
> 		org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:179)
> 		org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:69)
> 		org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:113)
> 		org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:227)
> 		org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:83)
> 		org.apache.activemq.transport.tcp.SslTransport.doConsume(SslTransport.java:91)
> 		org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:220)
> 		org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:202)
> 		java.lang.Thread.run(Thread.java:619)
> 		
> 		
> 		
> 		
> Thread: Thread[ActiveMQ Transport: ssl:///10.0.0.1:52148,5,spring-osgi-extender[435a3a]-threads]
> 	Name: ActiveMQ Transport: ssl:///10.0.0.1:52148
> 	Priority: 5
> 	Status: BLOCKED
> 	StackTrace:
> 		org.apache.activemq.broker.region.AbstractRegion.getDestinations(AbstractRegion.java:217)
>       -> synchronized (destinationsMutex)
> 		org.apache.activemq.broker.region.RegionBroker.getDestinations(RegionBroker.java:142)
> 		org.apache.activemq.broker.region.virtual.VirtualTopic.create(VirtualTopic.java:56)
> 		org.apache.activemq.broker.region.virtual.VirtualDestinationInterceptor.create(VirtualDestinationInterceptor.java:68)
>       ->  public synchronized void create(...)
> 		org.apache.activemq.broker.region.CompositeDestinationInterceptor.create(CompositeDestinationInterceptor.java:52)
> 		org.apache.activemq.broker.region.RegionBroker.addConsumer(RegionBroker.java:442)
>       -> synchronized (purgeInactiveDestinationsTask)
> 		org.apache.activemq.broker.jmx.ManagedRegionBroker.addConsumer(ManagedRegionBroker.java:240)
> 		org.apache.activemq.broker.BrokerFilter.addConsumer(BrokerFilter.java:89)
> 		org.apache.activemq.advisory.AdvisoryBroker.addConsumer(AdvisoryBroker.java:79)
> 		org.apache.activemq.broker.BrokerFilter.addConsumer(BrokerFilter.java:89)
> 		org.apache.activemq.broker.BrokerFilter.addConsumer(BrokerFilter.java:89)
> 		org.apache.activemq.broker.MutableBrokerFilter.addConsumer(MutableBrokerFilter.java:95)
> 		org.apache.activemq.broker.BrokerFilter.addConsumer(BrokerFilter.java:89)
> 		org.apache.activemq.broker.BrokerFilter.addConsumer(BrokerFilter.java:89)
> 		org.apache.activemq.broker.MutableBrokerFilter.addConsumer(MutableBrokerFilter.java:95)
> 		org.apache.activemq.broker.TransportConnection.processAddConsumer(TransportConnection.java:546)
> 		org.apache.activemq.command.ConsumerInfo.visit(ConsumerInfo.java:349)
> 		org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:306)
> 		org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:179)
> 		org.apache.activemq.transport.ResponseCorrelator.onCommand(ResponseCorrelator.java:116)
> 		org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:69)
> 		org.apache.activemq.transport.vm.VMTransport.dispatch(VMTransport.java:121)
> 		org.apache.activemq.transport.vm.VMTransport.oneway(VMTransport.java:112)
> 		org.apache.activemq.transport.MutexTransport.oneway(MutexTransport.java:40)
> 		org.apache.activemq.transport.ResponseCorrelator.oneway(ResponseCorrelator.java:60)
> 		org.apache.activemq.network.DemandForwardingBridgeSupport.addSubscription(DemandForwardingBridgeSupport.java:672)
> 		org.apache.activemq.network.DemandForwardingBridgeSupport.addConsumerInfo(DemandForwardingBridgeSupport.java:1025)
> 		org.apache.activemq.network.DemandForwardingBridgeSupport.serviceRemoteConsumerAdvisory(DemandForwardingBridgeSupport.java:605)
> 		org.apache.activemq.network.DemandForwardingBridgeSupport.serviceRemoteCommand(DemandForwardingBridgeSupport.java:497)
> 		org.apache.activemq.network.DemandForwardingBridgeSupport$2.onCommand(DemandForwardingBridgeSupport.java:165)
> 		org.apache.activemq.transport.ResponseCorrelator.onCommand(ResponseCorrelator.java:116)
> 		org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:69)
> 		org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:113)
> 		org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:227)
> 		org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:83)
> 		org.apache.activemq.transport.tcp.SslTransport.doConsume(SslTransport.java:91)
> 		org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:220)
> 		org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:202)
> 		java.lang.Thread.run(Thread.java:619)
> 		

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