User development, A new message was posted in the thread "Got marshalling exception, exiting java.io.IOException: Conn": http://community.jboss.org/message/519115#519115 Author : Ron Sigal Profile : http://community.jboss.org/people/ron.sigal@jboss.com Message: -------------------------------------------------------------- Hi Rakesh,   I can give you a description of the situation, but not why it's happening.  JBossMessaging (JBM) uses a Remoting client invoker, inside of an org.jboss.remoting.callback.ServerInvokerCallbackHandler, to send messages from the server to a client. The exception is saying that the socket that is being used to send JBM messages isn't working because the other side (the client side) closed the connection. But I don't know why.  I'd suggest looking at the client side logs.   One thing you could try is to set the "numberOfCallRetries" parameter in $JBOSS_HOME/server/$CONFIG/deploy/jboss-messaging.sar/remoting-bisocket-service.xml as follows:      <attribute name="numberOfCallRetries" isParam="true">5</attribute>   That should cause ServerInvokerCallbackHandler to try again instead of giving up after the first failure.   -Ron -------------------------------------------------------------- To reply to this message visit the message page: http://community.jboss.org/message/519115#519115