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  1. WildFly
  2. WFLY-13376

Cannot change jgroups subsystem attribute without reload

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      We hit a change in behaviour while testing 7.4.0.CD19.
      In 7.3.0.GA and before it was perfectly fine changing jgroups attribute without reloading:

      /subsystem=jgroups/channel=ee:write-attribute(name=cluster, value=anything){allow-resource-service-restart=true}
      {"outcome" => "success"}
      

      Now with 7.4.0.CD19-CR1 it is no longer possible:

      /subsystem=jgroups/channel=ee:write-attribute(name=cluster, value=anything){allow-resource-service-restart=true}
      {
          "outcome" => "failed",
          "failure-description" => "WFLYCTL0158: Operation handler failed: org.jboss.msc.service.DuplicateServiceException: 
      Service org.wildfly.clustering.jgroups.channel.ee.captor is already registered",
          "rolled-back" => true
      }
      

      Server log exception:

      18:20:19,676 ERROR [org.jboss.as.controller.management-operation] (management-handler-thread - 1) WFLYCTL0013: Operation ("write-attribute") failed - address: ([
          ("subsystem" => "jgroups"),
          ("channel" => "ee")
      ]): org.jboss.msc.service.DuplicateServiceException: Service org.wildfly.clustering.jgroups.channel.ee.captor is already registered
      	at org.jboss.msc.service.ServiceRegistrationImpl.set(ServiceRegistrationImpl.java:135)
      	at org.jboss.msc.service.ServiceControllerImpl.startInstallation(ServiceControllerImpl.java:243)
      	at org.jboss.msc.service.ServiceContainerImpl.install(ServiceContainerImpl.java:747)
      	at org.jboss.msc.service.ServiceTargetImpl.install(ServiceTargetImpl.java:260)
      	at org.jboss.msc.service.ServiceControllerImpl$ChildServiceTarget.install(ServiceControllerImpl.java:2065)
      	at org.jboss.msc.service.ServiceTargetImpl.install(ServiceTargetImpl.java:260)
      	at org.jboss.msc.service.ServiceControllerImpl$ChildServiceTarget.install(ServiceControllerImpl.java:2065)
      	at org.jboss.msc.service.ServiceBuilderImpl.install(ServiceBuilderImpl.java:192)
      	at org.jboss.as.controller.OperationContextImpl.installService(OperationContextImpl.java:2041)
      	at org.jboss.as.controller.OperationContextImpl.access$600(OperationContextImpl.java:134)
      	at org.jboss.as.controller.OperationContextImpl$2$1.installService(OperationContextImpl.java:763)
      	at org.jboss.as.controller.OperationContextImpl$ContextServiceBuilder.install(OperationContextImpl.java:2182)
      	at org.jboss.as.clustering.jgroups.subsystem.ChannelServiceHandler.installServices(ChannelServiceHandler.java:87)
      	at org.jboss.as.clustering.controller.WriteAttributeStepHandler.restartServices(WriteAttributeStepHandler.java:121)
      	at org.jboss.as.clustering.controller.WriteAttributeStepHandler.applyUpdateToRuntime(WriteAttributeStepHandler.java:103)
      	at org.jboss.as.controller.AbstractWriteAttributeHandler$1.execute(AbstractWriteAttributeHandler.java:104)
      	at org.jboss.as.controller.AbstractOperationContext.executeStep(AbstractOperationContext.java:999)
      	at org.jboss.as.controller.AbstractOperationContext.processStages(AbstractOperationContext.java:743)
      	at org.jboss.as.controller.AbstractOperationContext.executeOperation(AbstractOperationContext.java:467)
      	at org.jboss.as.controller.OperationContextImpl.executeOperation(OperationContextImpl.java:1413)
      	at org.jboss.as.controller.ModelControllerImpl.internalExecute(ModelControllerImpl.java:429)
      	at org.jboss.as.controller.ModelControllerImpl.lambda$execute$1(ModelControllerImpl.java:246)
      	at org.wildfly.security.auth.server.SecurityIdentity.runAs(SecurityIdentity.java:289)
      	at org.wildfly.security.auth.server.SecurityIdentity.runAs(SecurityIdentity.java:255)
      	at org.jboss.as.controller.ModelControllerImpl.execute(ModelControllerImpl.java:246)
      	at org.jboss.as.controller.remote.ModelControllerClientOperationHandler$ExecuteRequestHandler.doExecute(ModelControllerClientOperationHandler.java:240)
      	at org.jboss.as.controller.remote.ModelControllerClientOperationHandler$ExecuteRequestHandler.access$400(ModelControllerClientOperationHandler.java:138)
      	at org.jboss.as.controller.remote.ModelControllerClientOperationHandler$ExecuteRequestHandler$1$1.run(ModelControllerClientOperationHandler.java:162)
      	at org.jboss.as.controller.remote.ModelControllerClientOperationHandler$ExecuteRequestHandler$1$1.run(ModelControllerClientOperationHandler.java:158)
      	at org.wildfly.security.auth.server.SecurityIdentity.runAs(SecurityIdentity.java:313)
      	at org.wildfly.security.auth.server.SecurityIdentity.runAs(SecurityIdentity.java:270)
      	at org.jboss.as.controller.AccessAuditContext.doAs(AccessAuditContext.java:254)
      	at org.jboss.as.controller.AccessAuditContext.doAs(AccessAuditContext.java:225)
      	at org.jboss.as.controller.remote.ModelControllerClientOperationHandler$ExecuteRequestHandler$1.execute(ModelControllerClientOperationHandler.java:158)
      	at org.jboss.as.protocol.mgmt.ManagementRequestContextImpl$1.doExecute(ManagementRequestContextImpl.java:70)
      	at org.jboss.as.protocol.mgmt.ManagementRequestContextImpl$AsyncTaskRunner.run(ManagementRequestContextImpl.java:160)
      	at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
      	at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1982)
      	at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486)
      	at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1377)
      	at java.lang.Thread.run(Thread.java:748)
      	at org.jboss.threads.JBossThread.run(JBossThread.java:485)
      

      I was able to locate the change to WFLY-12601 (https://github.com/wildfly/wildfly/commit/6fff03502b457985ded696985daf45540f941b07#diff-4ea606a97fdcb8d65e3c39b1f2fe9faa)

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              pferraro@redhat.com Paul Ferraro
              pferraro@redhat.com Paul Ferraro
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