[ https://issues.apache.org/activemq/browse/AMQ-961?page=all ]
Rob Davies resolved AMQ-961.
----------------------------
Fix Version/s: 4.2.0
Resolution: Fixed
Applied patch in SVN revision 491185
thanks kevin Yaussy!
> Problem with subscription passing with network of brokers in AMQ 4.0.2
> ----------------------------------------------------------------------
>
> Key: AMQ-961
> URL: https://issues.apache.org/activemq/browse/AMQ-961
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Affects Versions: 4.0.2
> Reporter: Kevin Yaussy
> Assigned To: Rob Davies
> Priority: Critical
> Fix For: 4.2.0
>
> Attachments: RestartDFBOnResume.diff
>
>
> There's an occasional problem with subscription propagation when using a
> network of brokers. Test scenario uses ConsumerTool and PublisherTool in
> examples area of distribution.
> 1) Start broker A (has a network connection to broker B)
> 2) Start broker B (has a network connection to broker A)
> 3) start consumer C against broker A, on FOO
> 4) start publisher P against broker B, on FOO
> Messages do not flow to consumer C. In the broker B log, there's no
> indication it got any subscriptions from broker A. Again, this is occasional.
> I've taken a kill-3 on the brokers, both when this condition appears, and
> when everything is fine. There's an obvious difference in one of the threads
> that hopefully will bring light to the problem. I've not gone into the code
> yet to try and find the issue, but figured I would open this issue first.
> Stack trace of broker A when subscriptions did NOT pass, and message flow is
> broken:
> "ActiveMQ Transport: tcp://perfgc1a/170.137.15.169:5112" prio=10
> tid=0x0030e160 nid=0x3f in Object.wait() [0x8
> e2ff000..0x8e2ff8f0]
> at java.lang.Object.wait(Native Method)
> - waiting on <0x9b2b00d0> (a
> edu.emory.mathcs.backport.java.util.concurrent.CountDownLatch)
> at java.lang.Object.wait(Object.java:474)
> at
> edu.emory.mathcs.backport.java.util.concurrent.CountDownLatch.await(CountDownLatch.java:179)
> - locked <0x9b2b00d0> (a
> edu.emory.mathcs.backport.java.util.concurrent.CountDownLatch)
> at
> org.apache.activemq.network.DemandForwardingBridgeSupport.waitStarted(DemandForwardingBridgeSupport
> .java:830)
> at
> org.apache.activemq.network.DemandForwardingBridgeSupport.serviceRemoteCommand(DemandForwardingBrid
> geSupport.java:329)
> at
> org.apache.activemq.network.DemandForwardingBridgeSupport$2.onCommand(DemandForwardingBridgeSupport
> .java:130)
> at
> org.apache.activemq.transport.ResponseCorrelator.onCommand(ResponseCorrelator.java:92)
> at
> org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:67)
> at
> org.apache.activemq.transport.failover.FailoverTransport$1.onCommand(FailoverTransport.java:117)
> at
> org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:124)
> at
> org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:123)
> at
> org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:88)
> at
> org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:137)
> at java.lang.Thread.run(Thread.java:595)
> Stack trace of broker A when everything works correctly:
> "ActiveMQ Transport: tcp://perfgc1a/170.137.15.169:5112" prio=10
> tid=0x01955fc8 nid=0x3f runnable [0x8e2cf000..0x8e2cfaf0]
> at java.net.SocketInputStream.socketRead0(Native Method)
> at java.net.SocketInputStream.read(SocketInputStream.java:129)
> at
> org.apache.activemq.transport.tcp.TcpBufferedInputStream.fill(TcpBufferedInputStream.java:49)
> at
> org.apache.activemq.transport.tcp.TcpBufferedInputStream.read(TcpBufferedInputStream.java:56)
> at java.io.DataInputStream.readInt(DataInputStream.java:353)
> at
> org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:275)
> at
> org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:136)
> at java.lang.Thread.run(Thread.java:595)
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