[rules-users] Is drools ksession thread-safe?

[jschmied]

I think no. I use a session in a multithread environment I had to put a
wrapper with synchronized methods around it to prevent random locks.

FireUntilHalt consumes 100% CPU. I have a ruleflow and found:

while (ksession.getPrcState(prc) == ProcessInstance.STATE_ACTIVE) {
	Threads.sleep(10);
	ksession.fireAllRules();
}

performs much better.

The functions are:

		public synchronized int fireAllRules() {
			return kSession.fireAllRules();
		}

		public synchronized int getPrcState(ProcessInstance prc) {
			return prc.getState();
		}

of my threadsafe warpper class.



juergen

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