[rules-users] Drools session reuse question

Is creation of StatefulKnowledgeSession expensive? Is there a guideline or best practice regarding this? Currently I am creating a new session /kbase.newStatefulKnowledgeSession()/ each time I want to call /session.fireAllRules()/. I do this for each of the 200,000 data records that I have. So it creates and destroys 200 drools sessions (monitored via drools JMX bean) I was trying to reuse the same drools session for each of those 200,000 data records to see if it improves the performance (don't know if this is frowned upon or recommended). However this was failing my rules left and right, not sure why, possibly because I am not cleaning up the session cleanly. I have been calling /session.dispose() /after every /fireAllRules() /though. Any thoughts? Thanks, Abdul -- View this message in context: http://drools.46999.n3.nabble.com/Drools-session-reuse-question-tp3466635... Sent from the Drools: User forum mailing list archive at Nabble.com.