This is because you created a session and that session is sticky. So it will always go to that node.
mod_cluster comes with nice load balancing demo which creates session but reuses them after while. It shows nice graphs as well. Its bundled with distribution.
I have a sample application that when you query a simple servlet, it tells you how many times you called it so that you can know whether the session is as you expected it to be: https://github.com/rhusar/clusterbench
You could also set <mod-cluster-config ... sticky-session="false"/> to spray your requests over the instances
I tried it and its working partialy. I had opened a browser and hit the url for SuperSnoopWeb and i got the bind address of first node and when i refreshed it went to second node. the problem here is if i open from another browser the request goes to the first server only, instead of second node. Please help me out
Where to set the weightage for round robin method in mod_cluster/jboss-5.1.1 ?