Re: [rules-users] Speed up inserting of rules into knowledge base

I have a very similar issue - so I'm interested in any further performance tips or findings: We use Drools with an interface where users can update / edit rules. Those rules are then stored (and versioned) in a database. Afterwards the rules are fetched again from database and added one by one in the following way: for (Rule rule ...) { knowledgeBuilder.add(ResourceFactory.newByteArrayResource(rule.getRuleContent().getBytes()), ResourceType.DRL); if (kbuilder.hasErrors()) { throw Error... } } kbase = KnowledgeBaseFactory.newKnowledgeBase(); kbase.addKnowledgePackages(knowledgeBuilder.getKnowledgePackages()); We have several hundred rules and a rule checking throughput of also several hundred rules/second (on 2 nodes). With the number of rules increasing this KnowledgeBase update takes longer and longer (compiling all those rules) and during this time no rule can be checked. So the system stands still from the user point of view. There seems to exist no possibility to refresh a rule selectively - is this correct? If yes, then how is the best way to handle such a situation? The first idea that comes to mind is using two KnowledgeBases in parallel... -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Speed-up-inserting-of... Sent from the Drools - User mailing list archive at Nabble.com.