Hi, I'm inheriting Drools 6.0 application where all rules are in one huge drl file. Would behavior be different if I broke rules into multiple files and loaded with multiple calls to KnowledgeBuilder.add()? Also, KnowledgeBuilder is being created with each session: KnowledgeBuilder.newKnowledgeBuilder() and then knowledgeBuilder.add(). Since rules don't change, any reason why can't create KnowledgeBuilder at startup and share it? Is it thread safe and can it be re-used? Thanks, Ken -- View this message in context: http://drools.46999.n3.nabble.com/newbie-question-about-KnowledgeBuilder-... Sent from the Drools: User forum mailing list archive at Nabble.com.