"bstansberry(a)jboss.com" wrote : I see it. You are using : | | import org.jboss.annotation.ejb.Clustered; | | which was removed a long time ago as part of the reorganization of EJB3 annotations; now it is: | | import org.jboss.ejb3.annotation.Clustered; Okay, I rebuilt the application with the AS 5 libraries, and I am no longer getting the SimpleStatefulCache, but instead am getting the StatefulTreeCache. You cannot configure the StatefulTreeCache (at least I can't see how), so my throughput has now dropped, even though I don't have the hang situation anymore. The StatefulTreeCache doesn't appear to have a maxSize, and it seems to be limited to 10,000 beans. So, the question I have, is how do I get it to pick up the EJB3SFSBSClusteredCache. It appears I would need to add an annotation (@Cache or @CacheConfig), but the documentation for both of these is out-of-date, and the source has no explanation (no javadoc). Any ideas? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4184003#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...