Having implemented queue and destination filtering between spokes and the hub, the connections lasted just over 24 hours.
It's just died. Same traces on the hub as before. On the spoke with which comms have died: Name: ActiveMQ Transport: ssl://hub/x.x.x.x:61617 State: WAITING on java.util.concurrent.locks.ReentrantLock$NonfairSync@4864ae35 owned by: ActiveMQ BrokerService[zorin] Task-3350 Total blocked: 68 Total waited: 1,862 Stack trace: sun.misc.Unsafe.park(Native Method) java.util.concurrent.locks.LockSupport.park(LockSupport.java:186) java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:838) java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:871) java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1201) java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:214) java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:290) org.apache.activemq.transport.MutexTransport.oneway(MutexTransport.java:66) org.apache.activemq.transport.ResponseCorrelator.oneway(ResponseCorrelator.java:60) org.apache.activemq.network.DemandForwardingBridgeSupport.serviceRemoteCommand(DemandForwardingBridgeSupport.java:467) org.apache.activemq.network.DemandForwardingBridgeSupport$2.onCommand(DemandForwardingBridgeSupport.java:179) org.apache.activemq.transport.ResponseCorrelator.onCommand(ResponseCorrelator.java:116) org.apache.activemq.transport.MutexTransport.onCommand(MutexTransport.java:50) org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:113) org.apache.activemq.transport.AbstractInactivityMonitor.onCommand(AbstractInactivityMonitor.java:256) 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:222) org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:204) java.lang.Thread.run(Thread.java:636) Name: ActiveMQ BrokerService[zorin] Task-3350 State: RUNNABLE Total blocked: 0 Total waited: 668 Stack trace: java.net.SocketOutputStream.socketWrite0(Native Method) java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:109) java.net.SocketOutputStream.write(SocketOutputStream.java:153) sun.security.ssl.OutputRecord.writeBuffer(OutputRecord.java:314) sun.security.ssl.OutputRecord.write(OutputRecord.java:303) sun.security.ssl.SSLSocketImpl.writeRecordInternal(SSLSocketImpl.java:763) sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:751) sun.security.ssl.AppOutputStream.write(AppOutputStream.java:78) - locked sun.security.ssl.AppOutputStream@3109e59b org.apache.activemq.transport.tcp.TcpBufferedOutputStream.write(TcpBufferedOutputStream.java:96) java.io.DataOutputStream.write(DataOutputStream.java:107) - locked java.io.DataOutputStream@c13c44 org.apache.activemq.openwire.v9.BaseDataStreamMarshaller.tightMarshalByteSequence2(BaseDataStreamMarshaller.java:431) org.apache.activemq.openwire.v9.MessageMarshaller.tightMarshal2(MessageMarshaller.java:180) org.apache.activemq.openwire.v9.ActiveMQMessageMarshaller.tightMarshal2(ActiveMQMessageMarshaller.java:89) org.apache.activemq.openwire.v9.ActiveMQTextMessageMarshaller.tightMarshal2(ActiveMQTextMessageMarshaller.java:89) org.apache.activemq.openwire.OpenWireFormat.marshal(OpenWireFormat.java:243) - locked org.apache.activemq.openwire.OpenWireFormat@e5b94bf org.apache.activemq.transport.tcp.TcpTransport.oneway(TcpTransport.java:183) org.apache.activemq.transport.AbstractInactivityMonitor.doOnewaySend(AbstractInactivityMonitor.java:289) org.apache.activemq.transport.AbstractInactivityMonitor.oneway(AbstractInactivityMonitor.java:271) org.apache.activemq.transport.TransportFilter.oneway(TransportFilter.java:85) org.apache.activemq.transport.WireFormatNegotiator.oneway(WireFormatNegotiator.java:104) org.apache.activemq.transport.MutexTransport.oneway(MutexTransport.java:68) org.apache.activemq.transport.ResponseCorrelator.oneway(ResponseCorrelator.java:60) org.apache.activemq.network.DemandForwardingBridgeSupport.serviceLocalCommand(DemandForwardingBridgeSupport.java:726) org.apache.activemq.network.DemandForwardingBridgeSupport$1.onCommand(DemandForwardingBridgeSupport.java:167) org.apache.activemq.transport.ResponseCorrelator.onCommand(ResponseCorrelator.java:116) org.apache.activemq.transport.MutexTransport.onCommand(MutexTransport.java:50) org.apache.activemq.transport.vm.VMTransport.doDispatch(VMTransport.java:138) org.apache.activemq.transport.vm.VMTransport.dispatch(VMTransport.java:127) - locked java.util.concurrent.atomic.AtomicBoolean@1e828ef6 org.apache.activemq.transport.vm.VMTransport.oneway(VMTransport.java:104) org.apache.activemq.transport.MutexTransport.oneway(MutexTransport.java:68) org.apache.activemq.transport.ResponseCorrelator.oneway(ResponseCorrelator.java:60) org.apache.activemq.broker.TransportConnection.dispatch(TransportConnection.java:1312) org.apache.activemq.broker.TransportConnection.processDispatch(TransportConnection.java:838) org.apache.activemq.broker.TransportConnection.iterate(TransportConnection.java:873) org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:129) org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:47) java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) java.lang.Thread.run(Thread.java:636) Is this something that should be reported in JIRA? And should we be changing the writeTimeout you speak of? If so, to what? Thanks, James On 31 October 2012 16:57, Gary Tully <gary.tu...@gmail.com> wrote: > from a quick look at one of those stack traces, it looks like a thread > is blocked on a socket write, it may be that the socket is half closed > and that the write needs to timeout at the tcp level. that can take > some time. > > There is a writeTimeout filter that can help at the activemq level. > > Have a peek at https://issues.apache.org/jira/browse/AMQ-1993 > > > On 30 October 2012 21:31, James Green <james.mk.gr...@gmail.com> wrote: > > This is happening repeatedly causing memory consumption to balloon > locally > > and message queues to build remotely. > > > > Googling around isn't revealing much. Can anyone take a look and tell me > if > > this stuff is normal or not? Need to narrow down the investigations. > > > > Thanks, > > > > James > > > > On 30 October 2012 11:32, James Green <james.mk.gr...@gmail.com> wrote: > > > >> Hub with three spokes. The network between the hub and one of these > spokes > >> seems to be dying irregularly yet frequently. > >> > >> I managed to get a thread dump of the hub's ssl connector to this spoke > >> along with the thread it was waiting on: > >> > >> http://pastebin.com/ZjeSxDK7 > >> > >> I also captched a full thread dump on the hub: > >> > >> http://pastebin.com/Qu113JhQ > >> > >> On the spoke the thread dump button was disabled but I captured the > >> equivalent individual threads: > >> > >> http://pastebin.com/1hwb1BDp > >> > >> FWIW we just restarted the spoke and the network connector appears to be > >> stuck once again. Not sure what we can actually do now... > >> > >> Can anyone offer advice, perhaps a JIRA issue? This is with 5.7.0. > >> > >> James > >> > >> > > > > -- > http://redhat.com > http://blog.garytully.com >
