We are currently using JBoss Cache Version 1.4.0.SP1 with JGroups 2.2.8. We are having the folliwng scenario: We are having 10 instances on the server where very instance is trying to insert data in the PojoCache after 2 secs with a different key but in the same region. It works fine for about 12 hrs in the production environment but then the insert into the PojoCache gets blocked forever. One more aspect is that the insert into the PojoCache is happening as a part of a synchronous block. We could not figure out why the issue is coming. Any help regarding the same would be really benefecial. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4029768#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...