Yes, that seems to be the problem:) It looks like not good for me, cause I am working on project where is a lot of traffic. So some of the operations needs to use sql query to perform faster load (especially when loaded entities - huge objects are not ment to be cached) and in the same time, it's inadmissible for me to have clear cache so often, as the entities after are loaded directly from dbs and traffic is incredible, server is very unstable then... Do you think I should switch the code to only use sql queries?? As ejb3 queries in cases the entities are not cached are slowing down the operations, especially the load. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4206138#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...