Are you referring to JBoss4.0.3 release? I don't think we have 4.1 yet. :-)
We don't have the idempotent feature that you describe. However, conceptually you can use another clusteringinterceptor to perform this. It is one thing that we like to do but have not found high enough priority.
If you think this is important, you can open up a Jira and vote for it.
First of all thanks for the response.
U r right, it was a typo. I am referring to 4.0.3 release.
I was interested in this feature as i see other major app server supporting it. Although i don't feel it is really an important stuff.
Kindly throw some light on whether the state replication (of SFSB) happens by default without the configuration setting of /HASessionState/Default in jboss.xml. As the documentation specified it to be there.
Also, what is the mechanism to make the first point of contact (which is the web server) not a single point of failure. I mean even if the mod_jk component is implemented with Apache to load balance the web container, their is still a single web server serving the application, how to introduce redundancy at this level.
Response will be highly appreciated.