The Rulebase is thread safe, but individual sessions are not, regardless if it is a stateless or stateful. So your first suggestion, creating a new session for each call is correct. 2009/6/4 Meny Kobel <meny.kobel(a)gmail.com&gt; > Hi, > I have a number of services(threads) sharing the same RuleBase instance. > Each service is calling execute method and waiting for the results. > should each service call StatelessSession session = > ruleBase.newStatelessSession() Or I can create one StatelessSession and > share it between the services (probably will improve performance)? > > Meny > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > > _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users