We are running our application on JBoss 4.2.3 and JBM 1.4.0 SP3 in a clustered env. We can see if the one node is down all the new messages are transferred to other node. My question is during the message processing if one node goes down abruptly. Will the state be failed over to other node. Is this kind of fail over possible in JBoss ? If yes can any one please just explain me what all we need to do for that.