Matthias Grossmann [https://community.jboss.org/people/mgrossmann] created the discussion "Re: JBM clients hangs when creating connections/sessions" To view the discussion, visit: https://community.jboss.org/message/718587#718587 -------------------------------------------------------------- Hi Daniel, in the thread dump you sent to me i found the thread which holds the lock you mentioned above: "WorkManager(2)-29869" daemon prio=10 tid=0x00007f83f4aaa400 nid=0x78df runnable [0x000000005ba01000..0x000000005ba03c20]    java.lang.Thread.State: RUNNABLE     at java.net.SocketInputStream.socketRead0(Native Method)     at java.net.SocketInputStream.read(SocketInputStream.java:129)     at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)     at java.io.BufferedInputStream.read(BufferedInputStream.java:237)     - locked <0x00007f843449d950> (a java.io.BufferedInputStream)     at java.io.FilterInputStream.read(FilterInputStream.java:66)     at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.readVersion(MicroSocketClientInvoker.java:1077)     at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.transport(MicroSocketClientInvoker.java:682)     at org.jboss.remoting.transport.bisocket.BisocketClientInvoker.transport(BisocketClientInvoker.java:458)     at org.jboss.remoting.MicroRemoteClientInvoker.invoke(MicroRemoteClientInvoker.java:141)     at org.jboss.remoting.Client.invoke(Client.java:1925)     at org.jboss.remoting.Client.invoke(Client.java:786)     at org.jboss.remoting.Client.invoke(Client.java:774)     at org.jboss.jms.client.delegate.DelegateSupport.doInvoke(DelegateSupport.java:189)     at org.jboss.jms.client.delegate.DelegateSupport.doInvoke(DelegateSupport.java:160)     at org.jboss.jms.client.delegate.ClientConsumerDelegate.org$jboss$jms$client$delegate$ClientConsumerDelegate$changeRate$aop(ClientConsumerDelegate.java:138)     at org.jboss.jms.client.delegate.ClientConsumerDelegate$changeRate_N952316153687074823.invokeNext(ClientConsumerDelegate$changeRate_N952316153687074823.java)     at org.jboss.jms.client.container.FailoverValveInterceptor.invoke(FailoverValveInterceptor.java:92)     at org.jboss.aop.advice.PerInstanceInterceptor.invoke(PerInstanceInterceptor.java:105)     at org.jboss.jms.client.delegate.ClientConsumerDelegate$changeRate_N952316153687074823.invokeNext(ClientConsumerDelegate$changeRate_N952316153687074823.java)     at org.jboss.jms.client.container.ClosedInterceptor.invoke(ClosedInterceptor.java:170)     at org.jboss.aop.advice.PerInstanceInterceptor.invoke(PerInstanceInterceptor.java:105)     at org.jboss.jms.client.delegate.ClientConsumerDelegate$changeRate_N952316153687074823.invokeNext(ClientConsumerDelegate$changeRate_N952316153687074823.java)     at org.jboss.jms.client.delegate.ClientConsumerDelegate.changeRate(ClientConsumerDelegate.java)     at org.jboss.jms.client.container.ClientConsumer.sendChangeRateMessage(ClientConsumer.java:754)     at org.jboss.jms.client.container.ClientConsumer.pause(ClientConsumer.java:669)     - locked <0x00007f8434479d38> (a java.lang.Object)     at org.jboss.messaging.core.impl.clusterconnection.MessageSucker.setConsuming(MessageSucker.java:317)     - locked <0x00007f840dc3dbf8> (a org.jboss.messaging.core.impl.clusterconnection.MessageSucker)     at org.jboss.messaging.core.impl.MessagingQueue.informSuckers(MessagingQueue.java:566)     at org.jboss.messaging.core.impl.MessagingQueue.setReceiversReady(MessagingQueue.java:529)     - locked <0x00007f840e9f29f0> (a org.jboss.messaging.core.impl.MessagingQueue)     at org.jboss.messaging.core.impl.ChannelSupport.deliverInternal(ChannelSupport.java:667)     at org.jboss.messaging.core.impl.MessagingQueue.deliverInternal(MessagingQueue.java:506)     at org.jboss.messaging.core.impl.ChannelSupport$InMemoryCallback.afterCommit(ChannelSupport.java:1072)     - locked *<0x00007f840e9f3048>* (a java.lang.Object)     at org.jboss.messaging.core.impl.tx.Transaction.commit(Transaction.java:228)     - locked <0x00007f8433fa4e20> (a org.jboss.messaging.core.impl.tx.Transaction)     at org.jboss.jms.server.endpoint.ServerConnectionEndpoint.sendTransaction(ServerConnectionEndpoint.java:517) This thread is also hanging in a socketRead0() which is triggered from org.jboss.remoting.transport.socket.MicroSocketClientInvoker.readVersion(MicroSocketClientInvoker.java:1077) This is the point all threads are hanging even on client side. But i have no idea why the inputStream cannot be read. You mentioned that the local message processing works, so i assume there is no issue with the database. Regards, Matthias -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/718587#718587] Start a new discussion in JBoss Messaging at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]