After the above error, we tried another several times. and we got the following. 1. we tried client side again on another PC, and it gave the following exception: 4360 [main] ERROR org.jboss.remoting.transport.socket.MicroSocketClientInvoker - Error setting up S ocketClientInvoker[b61fd1, socket://omc:4446] java.net.UnknownHostException: omc: omc at java.net.InetAddress.getAllByName0(Unknown Source) at java.net.InetAddress.getAllByName0(Unknown Source) at java.net.InetAddress.getAllByName(Unknown Source) at java.net.InetAddress.getByName(Unknown Source) at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.setup(MicroSocketClientInvok er.java:382) at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.(MicroSocketClientInvo ker.java:245) at org.jboss.remoting.transport.socket.SocketClientInvoker.(SocketClientInvoker.java:7 2) at org.jboss.remoting.transport.socket.TransportClientFactory.createClientInvoker(TransportC lientFactory.java:39) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.jboss.remoting.InvokerRegistry.loadClientInvoker(InvokerRegistry.java:419) at org.jboss.remoting.InvokerRegistry.createClientInvoker(InvokerRegistry.java:320) at org.jboss.remoting.Client.connect(Client.java:459) at org.jboss.invocation.unified.interfaces.UnifiedInvokerProxy.init(UnifiedInvokerProxy.java :97) at org.jboss.invocation.unified.interfaces.UnifiedInvokerProxy.readExternal(UnifiedInvokerPr oxy.java:251) at java.io.ObjectInputStream.readExternalData(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source) at java.io.ObjectInputStream.readObject(Unknown Source) at java.util.HashMap.readObject(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at java.io.ObjectStreamClass.invokeReadObject(Unknown Source) at java.io.ObjectInputStream.readSerialData(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source) at java.io.ObjectInputStream.defaultReadFields(Unknown Source) at java.io.ObjectInputStream.readSerialData(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source) at java.io.ObjectInputStream.readObject(Unknown Source) at org.jboss.proxy.ClientContainer.readExternal(ClientContainer.java:157) at java.io.ObjectInputStream.readExternalData(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source) at java.io.ObjectInputStream.defaultReadFields(Unknown Source) at java.io.ObjectInputStream.readSerialData(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source) at java.io.ObjectInputStream.readObject(Unknown Source) at java.rmi.MarshalledObject.get(Unknown Source) at org.jnp.interfaces.MarshalledValuePair.get(MarshalledValuePair.java:72) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:710) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:627) at javax.naming.InitialContext.lookup(Unknown Source) at com.datangmobile.oss.platform.jndiresource.client.EJBHomeFactory.lookup(EJBHomeFactory.ja va:70) at com.datangmobile.oss.platform.clientmonitor.client.ClientMonitorImp_J2EE.login(ClientMoni torImp_J2EE.java:43) at com.datangmobile.oss.omc.omt.appstart.OmtStart.initRouter(OmtStart.java:511) at com.datangmobile.oss.omc.omt.appstart.OmtStart.main(OmtStart.java:145) 4453 [main] FATAL org.jboss.invocation.unified.interfaces.UnifiedInvokerProxy - Could not initializ e UnifiedInvokerProxy. java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.jboss.remoting.InvokerRegistry.loadClientInvoker(InvokerRegistry.java:419) at org.jboss.remoting.InvokerRegistry.createClientInvoker(InvokerRegistry.java:320) at org.jboss.remoting.Client.connect(Client.java:459) at org.jboss.invocation.unified.interfaces.UnifiedInvokerProxy.init(UnifiedInvokerProxy.java :97) at org.jboss.invocation.unified.interfaces.UnifiedInvokerProxy.readExternal(UnifiedInvokerPr oxy.java:251) at java.io.ObjectInputStream.readExternalData(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source) at java.io.ObjectInputStream.readObject(Unknown Source) at java.util.HashMap.readObject(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at java.io.ObjectStreamClass.invokeReadObject(Unknown Source) at java.io.ObjectInputStream.readSerialData(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source) at java.io.ObjectInputStream.defaultReadFields(Unknown Source) at java.io.ObjectInputStream.readSerialData(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source) at java.io.ObjectInputStream.readObject(Unknown Source) at org.jboss.proxy.ClientContainer.readExternal(ClientContainer.java:157) at java.io.ObjectInputStream.readExternalData(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source) at java.io.ObjectInputStream.defaultReadFields(Unknown Source) at java.io.ObjectInputStream.readSerialData(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source) at java.io.ObjectInputStream.readObject(Unknown Source) at java.rmi.MarshalledObject.get(Unknown Source) at org.jnp.interfaces.MarshalledValuePair.get(MarshalledValuePair.java:72) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:710) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:627) at javax.naming.InitialContext.lookup(Unknown Source) at com.datangmobile.oss.platform.jndiresource.client.EJBHomeFactory.lookup(EJBHomeFactory.ja va:70) at com.datangmobile.oss.platform.clientmonitor.client.ClientMonitorImp_J2EE.login(ClientMoni torImp_J2EE.java:43) at com.datangmobile.oss.omc.omt.appstart.OmtStart.initRouter(OmtStart.java:511) at com.datangmobile.oss.omc.omt.appstart.OmtStart.main(OmtStart.java:145) Caused by: java.lang.RuntimeException: omc: omc at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.(MicroSocketClientInvo ker.java:250) at org.jboss.remoting.transport.socket.SocketClientInvoker.(SocketClientInvoker.java:7 2) at org.jboss.remoting.transport.socket.TransportClientFactory.createClientInvoker(TransportC lientFactory.java:39) ... 45 more 4563 [Finalizer] DEBUG org.jboss.remoting.transport.socket.MicroSocketClientInvoker - SocketClientI nvoker[b61fd1, socket://omc:4446] disconnecting ... 4578 [Finalizer] DEBUG org.jboss.remoting.transport.socket.MicroSocketClientInvoker - SocketClientI nvoker[b61fd1, socket://omc:4446] disconnecting ... 4594 [main] DEBUG org.jboss.security.SecurityAssociation - Using ThreadLocal: false 4610 [main] ERROR com.datangmobile.oss.platform.clientmonitor.client.ClientMonitorImp_J2EE - Client info registry fails java.lang.reflect.UndeclaredThrowableException at $Proxy0.create(Unknown Source) at com.datangmobile.oss.platform.clientmonitor.client.ClientMonitorImp_J2EE.login(ClientMoni torImp_J2EE.java:45) at com.datangmobile.oss.omc.omt.appstart.OmtStart.initRouter(OmtStart.java:511) at com.datangmobile.oss.omc.omt.appstart.OmtStart.main(OmtStart.java:145) Caused by: java.lang.Exception: Can not make remoting client invocation due to not being connected t o server. at org.jboss.remoting.Client.invoke(Client.java:1639) at org.jboss.remoting.Client.invoke(Client.java:548) at org.jboss.invocation.unified.interfaces.UnifiedInvokerProxy.invoke(UnifiedInvokerProxy.ja va:183) at org.jboss.invocation.InvokerInterceptor.invokeInvoker(InvokerInterceptor.java:365) at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:197) at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:61) at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:70) at org.jboss.proxy.ejb.HomeInterceptor.invoke(HomeInterceptor.java:184) at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:100) ... 4 more com.datangmobile.oss.platform.clientmonitor.common.ClientMonitorException: java.lang.reflect.Undecla redThrowableException at com.datangmobile.oss.platform.clientmonitor.client.ClientMonitorImp_J2EE.login(ClientMoni torImp_J2EE.java:51) at com.datangmobile.oss.omc.omt.appstart.OmtStart.initRouter(OmtStart.java:511) at com.datangmobile.oss.omc.omt.appstart.OmtStart.main(OmtStart.java:145) Caused by: java.lang.reflect.UndeclaredThrowableException at $Proxy0.create(Unknown Source) at com.datangmobile.oss.platform.clientmonitor.client.ClientMonitorImp_J2EE.login(ClientMoni torImp_J2EE.java:45) ... 2 more Caused by: java.lang.Exception: Can not make remoting client invocation due to not being connected t o server. at org.jboss.remoting.Client.invoke(Client.java:1639) at org.jboss.remoting.Client.invoke(Client.java:548) at org.jboss.invocation.unified.interfaces.UnifiedInvokerProxy.invoke(UnifiedInvokerProxy.ja va:183) at org.jboss.invocation.InvokerInterceptor.invokeInvoker(InvokerInterceptor.java:365) at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:197) at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:61) at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:70) at org.jboss.proxy.ejb.HomeInterceptor.invoke(HomeInterceptor.java:184) at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:100) ... 4 more 2. If the client side and the Jboss are on the same machine(SunOS sparc), everything is OK. the above error no longer exists. So, we thought it's something related to ip address that caused the above error. If is ,how to avoid it? What common line should we use to start the jboss? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4147460#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...