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From "Gary Tully (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AMQ-4328) Cross talk over duplex network connection can lead to blocking
Date Mon, 18 Feb 2013 15:25:13 GMT

     [ https://issues.apache.org/jira/browse/AMQ-4328?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gary Tully updated AMQ-4328:
----------------------------

    Component/s:     (was: activemq-camel)
                 Connector
    
> Cross talk over duplex network connection can lead to blocking
> --------------------------------------------------------------
>
>                 Key: AMQ-4328
>                 URL: https://issues.apache.org/jira/browse/AMQ-4328
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Connector
>    Affects Versions: 5.7.0, 5.8.0
>            Reporter: Gary Tully
>            Assignee: Gary Tully
>              Labels: bridge, duplex, hang, network
>             Fix For: 5.9.0
>
>
> with active forwarding in both directions a duplex network connector can block. in 5.8,
threads of the form:{code}"ActiveMQ BrokerService[xx] Task-10" daemon prio=10 tid=0xb35d1c00
nid=0xc64 runnable [0xb3369000]
>    java.lang.Thread.State: RUNNABLE
> 	at java.net.SocketOutputStream.socketWrite0(Native Method)
> 	at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
> 	at java.net.SocketOutputStream.write(SocketOutputStream.java:136)
> 	at org.apache.activemq.transport.tcp.TcpBufferedOutputStream.flush(TcpBufferedOutputStream.java:115)
> 	at java.io.DataOutputStream.flush(DataOutputStream.java:106)
> 	at org.apache.activemq.transport.tcp.TcpTransport.oneway(TcpTransport.java:176)
> 	at org.apache.activemq.transport.AbstractInactivityMonitor.doOnewaySend(AbstractInactivityMonitor.java:322)
> 	at org.apache.activemq.transport.AbstractInactivityMonitor.oneway(AbstractInactivityMonitor.java:304)
> 	at org.apache.activemq.transport.TransportFilter.oneway(TransportFilter.java:85)
> 	at org.apache.activemq.transport.WireFormatNegotiator.oneway(WireFormatNegotiator.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.network.DemandForwardingBridgeSupport.serviceLocalCommand(DemandForwardingBridgeSupport.java:994)
> 	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)
> 	- locked <0x647f4650> (a java.util.concurrent.atomic.AtomicBoolean)
> 	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$1.run(PooledTaskRunner.java:47)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> 	at java.lang.Thread.run(Thread.java:662)
> "ActiveMQ Transport: tcp:///xx:61616@40803" prio=10 tid=0xb3525400 nid=0xbec waiting
on condition [0xb3276000]
>    java.lang.Thread.State: WAITING (parking)
> 	at sun.misc.Unsafe.park(Native Method)
> 	- parking to wait for  <0x64657028> (a java.util.concurrent.locks.ReentrantLock$NonfairSync)
> 	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:156)
> 	at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:811)
> 	at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:842)
> 	at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1178)
> 	at java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:186)
> 	at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:262)
> 	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$7.onCompletion(DemandForwardingBridgeSupport.java:630)
> 	at org.apache.activemq.transport.FutureResponse.set(FutureResponse.java:65)
> 	at org.apache.activemq.transport.ResponseCorrelator.onCommand(ResponseCorrelator.java:109)
> 	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)
> 	- locked <0x647f4c80> (a java.util.concurrent.atomic.AtomicBoolean)
> 	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.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)
> 	- locked <0x647e6528> (a java.util.concurrent.atomic.AtomicBoolean)
> 	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.network.DemandForwardingBridgeSupport.serviceRemoteCommand(DemandForwardingBridgeSupport.java:622)
> 	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:662){code}

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