I'm working on a major EJB application at a startup. Due to budget limitations, we're investigating JBoss. We've deployed to it fine, but have no perspective on the possibilities for scaling JBoss.
I'm interested in hearing any examples of high-traffic sites using JBoss--in other words, scaling JBoss server to many thousands of users.
One thing I should add is that we're looking into how JBoss might work on several servers connected to one database. The JBoss servers would exist behind an Arrowpoint load balancer that would direct traffic.
Has anyone tried this?
Please read the Article about clustering in Java World to get more useful info about the LoadBalancing and High Availability.
And also keep in mind that JBoss is currently working on Clustering so soon you will be able to see more solid things.