Marcin Krol-3 wrote: You shouldn't need to do anything to the existing session. I have a situation where I add facts in a loop, calling session.fireAllRules() during each iteration. Have you tried using a working memory logger and the eclipse plugin to see what happens after you add the next set of facts? Its fairly easy to see if there are any activations created by the facts that are inserted. -- View this message in context: http://www.nabble.com/firing-rules-again--tp19114453p19118169.html Sent from the drools - user mailing list archive at Nabble.com.