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From "Patrik Dudits (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMQ-4632) Fix of AMQ-4328 causes deadlocks during set up of the bridge
Date Mon, 15 Jul 2013 12:30:48 GMT
Patrik Dudits created AMQ-4632:
----------------------------------

             Summary: Fix of AMQ-4328 causes deadlocks during set up of the bridge
                 Key: AMQ-4632
                 URL: https://issues.apache.org/jira/browse/AMQ-4632
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker
    Affects Versions: 5.8.0
         Environment: Windows 2008 R2, JDK x64 1.7.0_21
            Reporter: Patrik Dudits


We are experiencing a situation where a broker deadlocks when starting a duplex bridge and
the startup interferes with message delivery (I suppose). The broker is running embedded in
Glassfish 3.1.2.2.

{code}
Thread Execution Information:
-----------------------

Thread "ActiveMQ Transport: tcp://xx/a.b.c.d:61616@61883" thread-id: 108 thread-state: WAITING
Waiting on lock: java.util.concurrent.locks.ReentrantLock$NonfairSync@462eb43f
	 at: sun.misc.Unsafe.park(Native Method)
	 at: java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
	 at: java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:834)
	 at: java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:867)
	 at: java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1197)
	 at: java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:214)
	 at: java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:290)
	 at: org.apache.activemq.transport.MutexTransport.oneway(MutexTransport.java:66)
	 at: org.apache.activemq.transport.ResponseCorrelator.oneway(ResponseCorrelator.java:60)
	 at: org.apache.activemq.broker.TransportConnection.dispatch(TransportConnection.java:1378)
	 at: org.apache.activemq.broker.TransportConnection.processDispatch(TransportConnection.java:897)
	 at: org.apache.activemq.broker.TransportConnection.dispatchSync(TransportConnection.java:857)
	 at: org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:186)
	 at: org.apache.activemq.transport.ResponseCorrelator.onCommand(ResponseCorrelator.java:116)
	 at: org.apache.activemq.transport.MutexTransport.onCommand(MutexTransport.java:50)
	 at: org.apache.activemq.transport.vm.VMTransport.doDispatch(VMTransport.java:138)
	 at: org.apache.activemq.transport.vm.VMTransport.dispatch(VMTransport.java:127)
	 at: org.apache.activemq.transport.vm.VMTransport.oneway(VMTransport.java:104)
	 at: org.apache.activemq.transport.MutexTransport.oneway(MutexTransport.java:68)
	 at: org.apache.activemq.transport.ResponseCorrelator.asyncRequest(ResponseCorrelator.java:81)
	 at: org.apache.activemq.transport.ResponseCorrelator.request(ResponseCorrelator.java:86)
	 at: org.apache.activemq.network.DemandForwardingBridgeSupport.addSubscription(DemandForwardingBridgeSupport.java:902)
	 at: org.apache.activemq.network.DemandForwardingBridgeSupport.addConsumerInfo(DemandForwardingBridgeSupport.java:1183)
	 at: org.apache.activemq.network.DemandForwardingBridgeSupport.serviceRemoteConsumerAdvisory(DemandForwardingBridgeSupport.java:763)
	 at: org.apache.activemq.network.DemandForwardingBridgeSupport.serviceRemoteCommand(DemandForwardingBridgeSupport.java:614)
	 at: org.apache.activemq.network.DemandForwardingBridgeSupport$3.onCommand(DemandForwardingBridgeSupport.java:219)
	 at: org.apache.activemq.transport.ResponseCorrelator.onCommand(ResponseCorrelator.java:116)
	 at: org.apache.activemq.transport.MutexTransport.onCommand(MutexTransport.java:50)
	 at: org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:113)
	 at: org.apache.activemq.transport.AbstractInactivityMonitor.onCommand(AbstractInactivityMonitor.java:288)
	 at: org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:83)
	 at: org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:214)
	 at: org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:196)
	 at: java.lang.Thread.run(Thread.java:722)


Thread Synchronization Statistics:
-----------------------
This thread is blocked waiting on lock owned currently by thread named: ActiveMQ BrokerService[iconQR1]
Task-69, id: 1.118

Number of times this thread was blocked (to enter/reenter a Monitor): 3
Number of times this thread waited for a notification (i.e. it was in WAITING or TIMED_WAITING
state): 2
Total CPU time for this thread: 0 seconds 265.625.000 nanoseconds.
User-level CPU time for this thread: 0 seconds 265.625.000 nanoseconds.

Object Monitors currently held or requested by this thread: []
Ownable Synchronizers (e.g. ReentrantLock and ReentrantReadWriteLock) held by this thread:
[] 


Thread Execution Information:
-----------------------

Thread "ActiveMQ BrokerService[iconQR1] Task-69" thread-id: 1.118 thread-state: WAITING Waiting
on lock: java.util.concurrent.locks.ReentrantLock$NonfairSync@59a48eb6
	 at: sun.misc.Unsafe.park(Native Method)
	 at: java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
	 at: java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:834)
	 at: java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:867)
	 at: java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1197)
	 at: java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:214)
	 at: java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:290)
	 at: org.apache.activemq.transport.MutexTransport.oneway(MutexTransport.java:66)
	 at: org.apache.activemq.transport.ResponseCorrelator.oneway(ResponseCorrelator.java:60)
	 at: org.apache.activemq.network.DemandForwardingBridgeSupport.serviceLocalCommand(DemandForwardingBridgeSupport.java:972)
	 at: org.apache.activemq.network.DemandForwardingBridgeSupport$2.onCommand(DemandForwardingBridgeSupport.java:201)
	 at: org.apache.activemq.transport.ResponseCorrelator.onCommand(ResponseCorrelator.java:116)
	 at: org.apache.activemq.transport.MutexTransport.onCommand(MutexTransport.java:50)
	 at: org.apache.activemq.transport.vm.VMTransport.doDispatch(VMTransport.java:138)
	 at: org.apache.activemq.transport.vm.VMTransport.dispatch(VMTransport.java:127)
	 at: org.apache.activemq.transport.vm.VMTransport.oneway(VMTransport.java:104)
	 at: org.apache.activemq.transport.MutexTransport.oneway(MutexTransport.java:68)
	 at: org.apache.activemq.transport.ResponseCorrelator.oneway(ResponseCorrelator.java:60)
	 at: org.apache.activemq.broker.TransportConnection.dispatch(TransportConnection.java:1378)
	 at: org.apache.activemq.broker.TransportConnection.processDispatch(TransportConnection.java:897)
	 at: org.apache.activemq.broker.TransportConnection.iterate(TransportConnection.java:943)
	 at: org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:129)
	 at: org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:47)
	 at: java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
	 at: java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
	 at: java.lang.Thread.run(Thread.java:722)

Thread Synchronization Statistics:
-----------------------

This thread is blocked waiting on lock owned currently by thread named: ActiveMQ Transport:
tcp://xx/a.b.c.d:61616@61883, id: 108
Number of times this thread was blocked (to enter/reenter a Monitor): 0
Number of times this thread waited for a notification (i.e. it was in WAITING or TIMED_WAITING
state): 393
Total CPU time for this thread: 0 seconds 46.875.000 nanoseconds.
User-level CPU time for this thread: 0 seconds 46.875.000 nanoseconds.
Object Monitors currently held or requested by this thread: []
Ownable Synchronizers (e.g. ReentrantLock and ReentrantReadWriteLock) held by this thread:
[]
{code}

The solution working for us was to revert commit [AMQ3274Test, org.apache.activemq.usecases.NetworkBridgeProducerFlowControlTest
- sync needs to be conditional|https://github.com/apache/activemq/commit/806ec21eb6c5969c11f235111b00d5b808f00aef].



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