I'm probably not the one to answer your question; but could you please explain a little more how you are using drools?
I believe partitioning is related to drools-fusion's capabilities rather than a generic multi-threading facility. I also believe it needs to be used in conjunction with entry-points. A little more information would benefit others' replies. Thanks, Mike On 20 October 2010 11:53, Tim 4076 <tm4...@gmail.com> wrote: > I am attempting to use the multi thread knowledgebase partitioning > feature on drools 5.1, but am not having much luck. Using a stateless > session with MultithreadEvaluationOption.YES and > MaxThreadsOption.get(2) always gives a NullPointer exception: > > java.lang.NullPointerException > at > org.drools.reteoo.PartitionManager.waitForPendingTasks(PartitionManager.java:105) > at > org.drools.common.AbstractWorkingMemory.prepareToFireActivation(AbstractWorkingMemory.java:2090) > at > org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:845) > at > org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1071) > at > org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:785) > at > org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:751) > at > org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:218) > at > org.drools.impl.StatelessKnowledgeSessionImpl.execute(StatelessKnowledgeSessionImpl.java:302) > at com.sample.DroolsTest.main(DroolsTest.java:70) > > This looks similar to JIRA 2125, which was raised over a year ago. > Does this mean that this feature is completely non-functional? > > > Thanks, > Tim > _______________________________________________ > rules-users mailing list > rules-users@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users >
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