Resolution:
Description:
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In TIBCO BusinessEvents 3.x, Decision Manager External classes are not loaded on engine startup.


Environment:
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TIBCO BusinessEvents 3.x
TIBCO Decision Manager
TIBCO Rules Management Server


Symptoms:
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Decision Manager external classes are not loaded on engine start-up


Resolution:
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1). The preferred solution would be to load classes via JMX which is documented.

2). Second solution would be to change the tra files of Cache Servers/ Cache Loaders as mentioned below:  

    a). Remove the following property:

             be.engine.cluster.externalClasses.path=projectname/dt_codegen/class
          

    b). Make the following property false:

             be.engine.cluster.externalClasses.classLoader=false

In TIBCO BusinessEvents 3.x, Decision Manager External classes are not loaded on engine startup.