[rules-users] Drools Fusion Performance Evaluation

Hi all! Can anybody point me to a performance evaluation of Drools? I found some papers [1], [2] which focus on the rules part but I'm particularly interested in the event processing part of Drools. I want to know how many events can be processed per second with which latency, something that

Re: [rules-users] Drools Fusion Performance Evaluation

The standard well-established answer to this kind of question is that no benchmark can provide a reliable basis for predicting the behaviour of any particular application. It's easy to benchmark the simple insertion of facts (= events) where there is no or just a single rule; this will give you

[rules-users] MUTEX, mutual exclusion in Drools?

Hello there I am new to all drools... How can I 'mutex' in drools? Or could you suggest a better concept for that? (i mean, when two rules would fire : rule1 and rule2 in agenda the mutex is checked and : mutex for this case is defined, rule1 = higher, rule2 = lower prio only the one

Re: [rules-users] MUTEX, mutual exclusion in Drools?

Hello itchupe: I think you mean what in Drools is called SALIENCE. Look for that rule attribute in.. http://downloads.jboss.com/drools/docs/5.1.1.34858.FINAL/drools-expert/html/ch04.html#d0e3573 Best regards, Manuel Ortiz. 2011/6/28 itchupe itch...@gmail.com Hello there I am new to all

Re: [rules-users] MUTEX, mutual exclusion in Drools?

The hairy catchword in the post is only. Most of the time, it's best to design the conditions so that only one rule will reach the agenda. If this is too circumstantial, salience might be used to let the special case fire before the general case; but then something must be done to remove the

Re: [rules-users] MUTEX, mutual exclusion in Drools?

Of course, in the then part of rule1 you will have to set a fact that is checked in the when condition in rule2 to ensure that rule2 is not executed if rule1 has executed. Chris On 28/06/2011 12:30, Manuel Ortiz wrote: Hello itchupe: I think you mean what in Drools is called SALIENCE. Look

Re: [rules-users] MUTEX, mutual exclusion in Drools?

okay. I am not a big fan of mutex, so best is I redesign it as described. Thanks very much for your answers! itchupe -- View this message in context: http://drools.46999.n3.nabble.com/MUTEX-mutual-exclusion-in-Drools-tp3117430p3117624.html Sent from the Drools: User forum mailing list archive

[rules-users] Any high volume trading examples?

Hello all. I'm at the point where I need to pick the brains of those of you who have spent significant time with Drools I am just in the process of trying to decide if Drools is the right choice for a high volume trading application. It would be best if there were some simple examples out there

[rules-users] Date arithmetic in when part

Hi list, I feel this should be an elementary question but unfortunately I haven't been able to find a solution. I would like to perform date arithmetic in the when part of a rule. For example, I would like to express something like: rule Date compare rule dialect mvel when a : A() b : B(

Re: [rules-users] Date arithmetic in when part

See the Fusion manual, section on Temporal Reasoning/Temporal Operators. Even when the facts aren't events, these operators can still be applied to fields of type Date, e.g. $p1: Person( $dob1: dob ) $p2: Person( $dob2: dob after[3d] $dob1 ) -W On 28 June 2011 18:02,

[rules-users] activation dependent of rule order in drl file in 5.2.0.Final?

Hi, because of https://issues.jboss.org/browse/JBRULES-2942 i just migrated our (maven) project to 5.2.0.Final - we depend on salience in some of our rules. However, after the salience issue was gone I'm facing a new problem in several test cases: Rules in previously (drools 5.1.1) working

[rules-users] Drools 5.0 - 5.2 Migration Issue

I am working to migrate my project from 5.0 to 5.2.0 Final. I am getting an error that I cannot figure out how to fix. I get the error stack trace below my email signature. The only thing the consequence does is insert an object. This rule worked well in 5.0, and some of the early

Re: [rules-users] Date arithmetic in when part

Interesting. I tried to use this syntax to find out if a date is older than now using this source: $p2: Person( $dob2: dob before[3d] new Date() ) but I get and exception: org.drools.RuntimeDroolsException: The 'before' operator can only be used to compare one event to another, and never to

Re: [rules-users] Date arithmetic in when part

Thanks for the quick reply. I forgot to mention that I'm using 5.0.1, but I'll look at the Fusion manual for more info. -Stathis Wolfgang Laun wrote: See the Fusion manual, section on Temporal Reasoning/Temporal Operators. Even when the facts aren't events, these operators can still be applied