Hi FlyingEagle, might be that you need some listeners generating output. As soon as you have the session, try KnowledgeRuntimeLogger logger = KnowledgeRuntimeLoggerFactory.newThreadedFileLogger( ksession, "./petshop", 1000 ); And after firing rules apply logger.close(); The thing I don't know is, how the LoggerFactory can be connected to log4j. Hope I could help, Ingo *********************************************** Ingo Beyerlein myToys.de GmbH A member of the otto group Bergmannstrasse 72 10961 Berlin Ingo.Beyerlein(a)mytoys.de - www.myToys.de Amtsgericht Berlin Charlottenburg HRB 77235 Geschaeftsfuehrer: Dr. Oliver Lederle (Vorsitzender), Virpy Richter, Alexander Lederle -----Ursprüngliche Nachricht----- Von: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] Im Auftrag von FlyingEagle Gesendet: Dienstag, 24. April 2012 12:23 An: rules-users(a)lists.jboss.org Betreff: [rules-users] Problem with logging using Drools 5.3.0 Hello, I am debugging my drools application with Eclipse. Using Drools runtime 5.1.0 I've got automatically log entries from Drools on the console window. Now I am using the 5.3.0 runtime and no log entries are available. I have defined a log4j.properties and put it in the classpath. As trace level I have defined ALL. Own log entries are produced and shown on the console, but no entries from Drools are shown. Has anybody an idea, what I can do to get the log entries? Thx -- View this message in context: http://drools.46999.n3.nabble.com/Problem-with-logging-using-Drools-5-3-0-tp 3934918p3934918.html Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

On 24/04/2012 13:26, FlyingEagle wrote: Suspect the SystemEventListener default implementation got changed. Make have a dig around there, and provide your own impl. Mark