Hi All, I'm using JBoss [EAP] 4.3.0.GA_CP01 with clustering. I have defined a new destination in the destinations-service.xml and commented all rest of the predefined destinations including the destination of the default dead letter queue (DLQ). Now I'm getting the following error at deployment time. This error goes away when I un-comment the DLQ destination. Is the DLQ destination mandatory? or enabling it just hides my real error, instead of solving it? 15:09:34,678 WARN [JMSContainerInvoker] JMS provider failure detected for My_Message_Driven _Bean_Name | javax.naming.NameNotFoundException: queue/DLQ | at org.jboss.ha.jndi.TreeHead.lookup(TreeHead.java:242) | at org.jboss.ha.jndi.HAJNDI.lookup(HAJNDI.java:155) | at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:667) | at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:627) | at javax.naming.InitialContext.lookup(InitialContext.java:351) | at org.jboss.ejb.plugins.jms.DLQHandler.createService(DLQHandler.java:192) | at org.jboss.system.ServiceMBeanSupport.jbossInternalCreate(ServiceMBeanSupport.java:260) | at org.jboss.system.ServiceMBeanSupport.create(ServiceMBeanSupport.java:188) | at org.jboss.ejb.plugins.jms.JMSContainerInvoker.innerStartDelivery(JMSContainerInvoker.java:664) | at org.jboss.ejb.plugins.jms.JMSContainerInvoker.startService(JMSContainerInvoker.java:991) | at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289) | at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245) | at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source) | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) | at java.lang.reflect.Method.invoke(Method.java:585) | at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155) | at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94) | at org.jboss.mx.server.Invocation.invoke(Invocation.java:86) | at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264) | at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659) | at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978) | at $Proxy0.start(Unknown Source) | at org.jboss.system.ServiceController.start(ServiceController.java:417) | at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source) | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) | at java.lang.reflect.Method.invoke(Method.java:585) | at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155) | at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94) | at org.jboss.mx.server.Invocation.invoke(Invocation.java:86) | at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264) | at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4171451#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...