1 Reply Latest reply on Jul 29, 2016 1:05 PM by ziemianin4

    Problem with TimerService(duplicated resource)

    ziemianin4
    ziemianin4 Jul 28, 2016 6:21 AM

      Hi,

       

      I found a problem with TimerService that occurs when your application is configured as a singleton deployment.

       

      Test Application

      I created a small app that can be used to reproduce the problem. It is available on https://github.com/arturkowalczyk/wildfly10-timerservice-problem. The project has the following structure:

       

      EAR

      |- JAR

         |- Singleton Bean that uses TimerService (TimerEJB)

       

      Test Environment

      Two Wildfly instances (master, slave) connected to a cluster. EAR application deployed as singleton deployment with a custom singleton policy - preference for a node name. EAR file deployed on both nodes.

       

      Test Case

      1. Start master node, the app is also started - OK
      2. Start slave node, the app is deployed but bot stared - OK
      3. Stop master node, the app is started on slave - OK
      4. Start master node, there is a preference for node name so the app will be started again on master and stopped in slave - OK
      5. Stop master node, the app should be started again on slave but an exception occur. - ERROR

       

      09:50:42,115 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-6) MSC000001: Failed to start service jboss.deployment.subunit."wildfly-ejb-in-ear.ear"."wildfly-ejb-in-ear-ejb.jar".INSTALL: org.jboss.msc.service.StartException in service jboss.deployment.subunit."wildfly-ejb-in-ear.ear"."wildfly-ejb-in-ear-ejb.jar".INSTALL: WFLYSRV0153: Failed to process phase INSTALL of subdeployment "wildfly-ejb-in-ear-ejb.jar" of deployment "wildfly-ejb-in-ear.ear"
        at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:154)
        at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948)
        at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Caused by: org.jboss.as.server.deployment.DeploymentUnitProcessingException: WFLYEJB0086: Failed to install management resources for TimerEJB
        at org.jboss.as.ejb3.deployment.processors.EjbManagementDeploymentUnitProcessor.deploy(EjbManagementDeploymentUnitProcessor.java:82)
        at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:147)
        ... 5 more
Caused by: java.lang.IllegalStateException: WFLYCTL0075: Duplicate resource timer-service
        at org.jboss.as.controller.registry.AbstractModelResource$DefaultResourceProvider.register(AbstractModelResource.java:290)
        at org.jboss.as.controller.registry.AbstractModelResource.registerChild(AbstractModelResource.java:169)
        at org.jboss.as.server.deployment.DeploymentResourceSupport.register(DeploymentResourceSupport.java:322)
        at org.jboss.as.server.deployment.DeploymentResourceSupport.registerDeploymentSubResource(DeploymentResourceSupport.java:219)
        at org.jboss.as.ejb3.deployment.processors.EjbManagementDeploymentUnitProcessor.installManagementResource(EjbManagementDeploymentUnitProcessor.java:119)
        at org.jboss.as.ejb3.deployment.processors.EjbManagementDeploymentUnitProcessor.deploy(EjbManagementDeploymentUnitProcessor.java:79)
        ... 6 more

       

      It looks that the test app is not undeployed correctly on slave and as a result it cannot be deployed again in Step 5. Any ideas how can I resolve this problem?