Re: [rules-users] Performance issue: why are rules outside of ruleflow-group evaluated?

Hey, I had a similar issue where a massive log file was being generated due to the activation and cancellation of rules outside of the current ruleflow-group. My issues were not strictly performance related, I just didn't want to sift through thousands of lines of logging. This is one way I resolved my issue: declare GroupOneFinished end rule "simple rule in group one" ruleflow-group "group one" when DomainObject(expression == true) then //do something end rule "last rule to fire in group one" ruleflow-group "group one" salience -100 when not GroupOneFinished() then insert(new GroupOneFinished()); end rule "simple rule in group two" ruleflow-group "group two" when GroupOneFinished() DomainObject(costlyExpression == true) then // do something end Clearly, this is not a pretty solution and, depending on how drools handles the order of evaluation (does it stop trying to activate "simple rule in group two" as soon as it realizes there is no GroupOneFinished object?), may not add any performance gain, but it definitely reduced the size of my log file! Hope it helps, Enda On Mon, Jan 10, 2011 at 4:43 PM, H.C. <canterburry(a)gmail.com&gt; wrote: -- Enda J Diggins