[jboss-user] [Beginner's Corner] - Re: Clustering an application that uses Spring singletons

Wolf-Dieter Fink [http://community.jboss.org/people/wdfink] created the discussion "Re: Clustering an application that uses Spring singletons" To view the discussion, visit: http://community.jboss.org/message/571561#571561 -------------------------------------------------------------- What EJB version do you use 2.x or 3.x? It will help for an answer. Best try is to avoid such 'stateful' behaviour ;-( For our application (do not use spring) we found out that it will work without some caching more stable and without a performance drawback. We have entities with a high change frequency and the data in cache are ruled out and must be loaded anyhow. Solutions for you might be - JBoss(Tree)Cache, replicate the state in the cluster (time gap possible because of async replication after commit) - Special entity without caching or with the invalidation feature (EJB2 entities) - your own implementation and a signal if it must be refreshed (we do this for master data via JMS) Also you should think about the load-balancing, it is not ensured that two calls of SLSB in a sequence will reach the same JBoss instance in a cluster, this might produce problems if the cache-data will be not the same ... -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/571561#571561] Start a new discussion in Beginner's Corner at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]