EE Concurency Utilities "hung-task-threshold" / "long-running-tasks" do not work and are not implemented as explained --------------------------------------------------------------------------------------------------------------------- Key: WFLY-11328 URL: https://issues.jboss.org/browse/WFLY-11328 Project: WildFly Issue Type: Bug Components: EE Reporter: Jiri Ondrusek Assignee: Jiri Ondrusek Priority: Major ee subsystem parameters "hung-task-threshold" and "long-running-tasks" for managed-executor-service / managed-scheduled-executor-service do not work and are not implemented as described in [EAP 7 Development Guide|https://access.redhat.com/documentation/en-us/red_hat_jboss_enterpr...]: - hung-task-threshold: Defines the time, in milliseconds, after which tasks are considered hung by the managed executor service and forcefully aborted. If the value is 0 (which is the default), tasks are never considered hung. - long-running-tasks: Suggests optimizing the execution of long running tasks, and defaults to false. I tested with [EAP 7 QuickStarts managed-executor-service example|https://github.com/jboss-developer/jboss-eap-quickstarts/tree/7.0...] but these paremeters doe not take any effect: - tasks exceeding hung-task-threshold are never forcefully aborted. And there's no way to detect hung tasks exceeding hung-task-threshold. - setting long-running-tasks to true does not change the behavior. As far as I checked the source code, I noticed the following: - EAP 7.x uses the EE Concurency Utilities RI [org.glassfish.enterprise.concurrent|https://github.com/javaee/cu-ri] internally and just passes the paramters to the RI. - In the EE Concurency Utilities RI, these parameters are used in the methods [ManagedThreadFactoryImpl#isTaskHung(long now)|https://github.com/javaee/cu-ri/blob/master/src/main/java/org/glassf...], [AbstractManagedExecutorService#getHungThreads()|https://github.com/javaee...] and [AbstractManagedExecutorService#isLongRunningTasks()|https://github.com/ja...] (AbstractManagedExecutorService is the parent class of ManagedExecutorServiceImpl / ManagedScheduledExecutorServiceImpl). - However, these methods are never invoked from EAP 7.x. So, these parameters do not take any effect in EAP 7.x. - In addition, even if these methods are used, it looks the implementation is totally different from the description in the documentation. The parameter "long-running-tasks" is just used as a flag to skip from checking hung thread detection. And the parameter "hung-task-threshold" never forcefully abort the hung thread exceeding the threshold.