I have an apache web server in front of some jboss server instances ( running on different m/cs )... i have configured mod_jk to route requests to the app servers... in this respect i have some queries : - when the server instances on the different nodes are started , they automatically detect each other... also requests are routed from one to another as in if i shutdown an instance after a request has gone to it, the request is served by another instance... 1. ) can i then claim to have achieved clustering amongst the servers ? or have i missed something... i.e. do i need to do changes in some configuration files or something like that ? 2.) is there a concept of vertical clustering in jboss like in websphere or 2 instances of jboss on the same m/c are completely independent ? thanks View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4209671#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...