[jboss-user] [Clustering/JBoss] - Re: NameNotFound Exception on switching over

To briefly go through the cases: 1) A client running outside of JBoss AS. You need to code the retry mechanism that's laid out in detail on the wiki page. 2) A non-MDB client running inside JBoss AS. Use java:JmsXA. 3) An MDB deployed normally, i.e. not deploy-hasingleton. When the HA-JMS server fails over, there is no deploy/undeploy going on with the MDB. The existing MDBs will automatically keep trying to reacquire the HA-JMS server, and when it starts on the new master, they'll find it. This should all be transparent to other JMS clients, other than there may be a temporary delay in processing messages. 4) An MDB deployed in deploy-hasingleton. Here there will be a deployment of the MDB on the new master. Against, this should be transparent to other JMS clients. Note that there is no requirement whatsoever to deploy MDBs in deploy-hasingleton in order to have HA-JMS work properly. You'd only deploy them in deploy-hasingleton if for some reason you wanted them only running on one server in the cluster. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4092271#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...