[jboss-jira] [JBoss JIRA] (DROOLS-3093) Necessary configuration information is missing when running rules engine in active mode

Lyle Wang (Jira) issues at jboss.org
Wed Oct 10 01:32:00 EDT 2018


Lyle Wang created DROOLS-3093:
---------------------------------

             Summary: Necessary configuration information is missing when running rules engine in active mode
                 Key: DROOLS-3093
                 URL: https://issues.jboss.org/browse/DROOLS-3093
             Project: Drools
          Issue Type: Enhancement
          Components: docs
    Affects Versions: 7.12.0.Final, 6.5.0.Final
            Reporter: Lyle Wang
            Assignee: Mario Fusco


When following this doc page to run rules engine in active mode
https://docs.jboss.org/drools/release/6.5.0.Final/drools-docs/html/ch07.html#d0e7301

If application code opens another thread and do ksession.insert(fact) then it's possible to have threading issues.

https://access.redhat.com/solutions/3645752

Requesting to add suggestion to highlight "ThreadSafeTrackableTimeJobFactoryManager" should be used in multithreading environment, code example:
-------------------------------------------------------------
KieSessionConfiguration kconf = KnowledgeBaseFactory.newKnowledgeSessionConfiguration();
((org.drools.core.SessionConfiguration)kconf).setTimerJobFactoryType( TimerJobFactoryType.THREAD_SAFE_TRACKABLE );
KieSession ksession = kContainer.newKieSession("ksession-name", kconf);
-------------------------------------------------------------

Following code change has been made to update the default implementation to use ThreadSafeTrackableTimeJobFactoryManager :
https://github.com/kiegroup/drools/commit/92623e2435401db4f80eaf5e3e804c13ac776c0d



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