as it says in the docs. we’ve designed things to put in foundations for future multi-threaded exploitation, but there is nothing there now.
The example code doesn’t make too much sense to me. As you are saying you are using them as a pool, but you are disposing after use. Mark On 11 Apr 2014, at 08:48, Mercier Jonathan <jmerc...@genoscope.cns.fr> wrote: > Le 09/04/2014 11:20, Maxime Falaize a écrit : >> I confirm that the multithreaded rules evaluation is not currently >> supported. See >> https://github.com/droolsjbpm/drools/blob/master/drools-core/src/main/java/org/drools/core/RuleBaseConfiguration.java#L683 >> >> >> 2014-04-07 12:27 GMT+02:00 Maxime Falaize <maxime.fala...@gmail.com>: >> I'm sorry but I don't understand what you are talking about. In this >> article, there is nothing about multithreaded rules evaluation. It just says >> that the Phreak algorithm is designed for thread safety and future multicore >> processors exploitation. It doesn't mean that it is already multithreaded. >> Moreover I tested my appliciation with and without multithreaded sessions (I >> am using Drools 6.0.1.Final) and I noted a faster execution in the >> multithreaded one. >> >> >> 2014-04-04 13:53 GMT+02:00 jmercier <jmerc...@genoscope.cns.fr>: >> >> Le 04/03/2014 09:55, Maxime Falaize a écrit : >> > Hello, >> > >> > I want to ask you if it is a good practive to pool stateful sessions >> > for a specific ruleset to improve the execution performance. >> > Actually in my application I execute my rules by calling SOAP >> > webservice. For performance purpose, I test multithreaded calls to my >> > webservice and I noted that when I pool sessions in the server side, >> > it improves the performance a lot. >> > >> > To pool sessions, I just declare multiple ksession tag in my >> > kmodule.xml : >> > >> > <kbase name="KBase" packages="com.example.*"> >> > <ksession name="KSession1"/> >> > <ksession name="KSession2"/> >> > <ksession name="KSession3"/> >> > <ksession name="KSession4"/> >> > <ksession name="KSession5"/> >> > </kbase> >> > >> > In my spring webservice endpoint I just put that code to handle the >> > pool : >> > >> > @Endpoint >> > public class ExampleEndpoint implements InitializingBean { >> > >> > @Autowired >> > private ExampleRuleService ruleService; >> > private Map<Integer, Boolean> isRunningMap = new >> > HashMap<Integer, Boolean>(); >> > private static final int NB_POOL_SESSIONS = 5; >> > >> > @PayloadRoot(localPart = "com.example.ExampleRequest") >> > @ResponsePayload >> > public ExampleResponse handleRequest( >> > @RequestPayload ExampleRequest request) throws >> > InterruptedException { >> > KieServices ks = KieServices.Factory.get(); >> > KieContainer kc = ks.getKieClasspathContainer(); >> > while (true) { >> > for (int i = 0; i < NB_POOL_SESSIONS; i++) { >> > boolean run = false; >> > >> > synchronized (isRunningMap) { >> > if (!isRunningMap.get(i)) { >> > isRunningMap.put(i, true); >> > run = true; >> > } >> > } >> > >> > if (run) { >> > KieSession ksession = kc.newKieSession("KSession" >> > + (i + 1)); >> > ExampleResponse response = >> > ruleService.run(ksession, request); >> > ksession.dispose(); >> > >> > isRunningMap.put(i, false); >> > return response; >> > } >> > } >> > Thread.sleep(100); >> > } >> > } >> > >> > public void afterPropertiesSet() throws Exception { >> > for (int i = 1; i <= NB_POOL_SESSIONS; i++) { >> > isRunningMap.put((i - 1), false); >> > } >> > } >> > >> > } >> > >> > It works well because in my benchmark I improve 5 times the >> > performance (as I have 5 different threads) but I wondered if it is a >> > good practice and if it does not hide any issues that I could have in >> > the future. >> > >> > Thanks for your help. >> > >> > -- >> > Maxime FALAIZE >> > _______________________________________________ >> > rules-users mailing list >> > rules-users@lists.jboss.org >> > https://lists.jboss.org/mailman/listinfo/rules-users >> >> >> Hi maxime, >> >> I do not remember if use drools 6 or drools 5. If you using drools 6. >> Phreaks algorithm use multi threading according to use 'from >> accummulate' far i understand here: >> http://planet.jboss.org/post/drools_6_performance_with_the_phreak_algorithm >> >> Instead to put a thread by ksession here rules evaluation are >> multi-threaded. >> >> >> _______________________________________________ >> rules-users mailing list >> rules-users@lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/rules-users >> >> >> >> -- >> Maxime FALAIZE >> >> >> >> -- >> Maxime FALAIZE >> >> >> _______________________________________________ >> rules-users mailing list >> rules-users@lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/rules-users > > Ah yes. Maybe Mark Proktor could tell some information about this > _______________________________________________ > rules-users mailing list > rules-users@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users
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