Cannot change jgroups subsystem attribute without reload -------------------------------------------------------- Key: WFLY-13376 URL: https://issues.redhat.com/browse/WFLY-13376 Project: WildFly Issue Type: Bug Components: Clustering Affects Versions: 19.0.0.Final Reporter: Paul Ferraro Assignee: Paul Ferraro Priority: Blocker 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: {code:java} /subsystem=jgroups/channel=ee:write-attribute(name=cluster, value=anything){allow-resource-service-restart=true} {"outcome" => "success"} {code} Now with 7.4.0.CD19-CR1 it is no longer possible: {code:java} /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 } {code} Server log exception: {code:java} 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) {code} I was able to locate the change to WFLY-12601 (https://github.com/wildfly/wildfly/commit/6fff03502b457985ded696985daf455...)