[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - concurrent reading & read ahead with SimpleReadWriteEJBLock

Hello, In my project we need to use read-ahead strategies. I have a situation where concurrent read access to the bean have to be allowed. Since for the read-ahead strategies to work the transaction attribute must be Required/RequiresNew I have set it as Required. I have extended the Standard CMP entity bean and created a container configuration with SimpleReadWriteEJBLock as locking policy. For the beans I have specified the optimistic locking strategy with time-stamp column approach. The methods have a Required transaction attribute set. Now when concurrent read access occurs TrasactionRolledBackException is happening due to read time out. I cannot use read only entity beans since such beans are not part of transaction and read ahead strategies will have a negative performance impact. Can somebody provide some clues to fix the issue? What I need is, 1. Concurrent read access is permitted 2. read-ahead strategies should work properly Any Ideas? Thanks Arun K View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4021694#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...