[jboss-jira] [JBoss JIRA] (WFLY-4330) Async service with EJB pool blocks threads not used

[Janario Oliveira (JIRA)]

Janario Oliveira created WFLY-4330:
--------------------------------------

             Summary: Async service with EJB pool blocks threads not used
                 Key: WFLY-4330
                 URL: https://issues.jboss.org/browse/WFLY-4330
             Project: WildFly
          Issue Type: Bug
          Components: EJB
    Affects Versions: 8.2.0.Final
            Reporter: Janario Oliveira
            Assignee: David Lloyd


I've created a bean pool to limit the number of some instances. In that case maximum 5 instances.

<pools>
	<bean-instance-pools>
		<strict-max-pool name="slsb-max5" max-pool-size="5" instance-acquisition-timeout="5" instance-acquisition-timeout-unit="MINUTES"/>
		...
	</bean-instance-pools>
</pools>

The idea was to have some async service that work simultaneous.

@Stateless
@Pool("slsb-max5")
public class AsyncService {
    @Asynchronous
    public Future<LocalDateTime> async2Seconds() {
        //some parallel work...
    }
}

The problem is when I invoke simultaneous more than 5 times it blocks the threads even it is not using (async thread-pool-name="default", default=10)

Attached an example project (configure slsb-max5 pool and access /test-thread-pool/rest/async-resource)



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