Can you switch to stateful session bean? If yes, you can try the following: 1. Have the stateful sesion bean class implements javax.ejb.SessionSynchronization interface. 2. Make the database operation transactional, so that in the case of JTA rollback the data is not updated in the DB. 2. Within the afterCompletion() notification method, check the transaction status (which is passed as argument). If it is true (meaning transaction is committed), write your data into the file. Otherwise (meaning rollback), do not write your data into the file. Please note that this is NOT a perfect solution, because the file operation within the afterCompltion() can fail. You need to provide good error logging, so that the system admin can later fix the inconsistency manually. Please check the EJB spec for details. Hope this helps. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4151739#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...