How about a POJO singleton that access a clustered cache (like JBoss TreeCache, or ehcache..)? Or a set of JMX MBeans that you cluster http://www.jboss.org/index.html?module=bb&op=viewtopic&t=77986 "babacarn" wrote : Hi, | | I am looking for 'something' that: | - has the features of a SFSB (statefull, can be clustered) | - runs as a singleton | | I have investigated a lot the Service bean (the jboss extension) but unfortunately it does not support replication (am i right?). | | I would like to implement a system that consist of a set services that collaborate between each others. When an instance of a service fails, I would like the system to able to failover another box. | | | | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3997161#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...