Hi community I have actually some problems to work with my rules file (.drl). It is about 1.5Meg (~2500 rules) After creating multiple sessions (3 to 9; StatefulKnowledgeSessions) i get an exception. Usually '... java.lang.RuntimeException: cannot invoke method: update ...' or directly and '....evaluate(Unknown Source) ...) is thrown. After reducing the rules file size to less than 500k it works without any exceptions. Using: Drools 5.5 Win7 X64 / 16G Ram Does anyone have similar problems ? Are there any known memory problems within Drools 5.5 ? Or is my rules file unusually big ? T.i.a. Peter ------------------------------ If you reply to this email, your message will be added to the discussion below: http://drools.46999.n3.nabble.com/Drools-5-5-Problems-with-big-rules-file... To start a new topic under Drools: User forum, email ml-node+s46999n47000h33(a)n3.nabble.com To unsubscribe from Drools, click here<http://drools.46999.n3.nabble.com/template/NamlServlet.jtp?macro=... . NAML<http://drools.46999.n3.nabble.com/template/NamlServlet.jtp?macro=...