[ https://issues.jboss.org/browse/WFLY-5453?page=com.atlassian.jira.plugin.... ] Miroslav Novak commented on WFLY-5453: -------------------------------------- Yes, after adding <slave/> there is no NPE during backup activation but I see problem conflicting(same) server-id for invm acceptor of starting backup: {code} 17:28:18,289 INFO [org.apache.activemq.artemis.core.server] (AMQ119000: Activation for server ActiveMQServerImpl::serverUUID=null) AMQ221007: Server is now live 17:28:18,291 ERROR [org.apache.activemq.artemis.core.server] (AMQ119000: Activation for server ActiveMQServerImpl::serverUUID=null) AMQ224000: Failure in initialisation: java.lang.IllegalArgumentException: AMQ119062: Acceptor with id 0 already registered at org.apache.activemq.artemis.core.remoting.impl.invm.InVMRegistry.registerAcceptor(InVMRegistry.java:32) at org.apache.activemq.artemis.core.remoting.impl.invm.InVMAcceptor.start(InVMAcceptor.java:110) at org.apache.activemq.artemis.core.remoting.server.impl.RemotingServiceImpl.startAcceptors(RemotingServiceImpl.java:286) at org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl.completeActivation(ActiveMQServerImpl.java:1593) at org.apache.activemq.artemis.core.server.impl.SharedNothingBackupActivation.run(SharedNothingBackupActivation.java:260) at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_51] 17:28:18,295 ERROR [stderr] (AMQ119000: Activation for server ActiveMQServerImpl::serverUUID=null) java.lang.IllegalArgumentException: AMQ119062: Acceptor with id 0 already registered 17:28:18,295 ERROR [stderr] (AMQ119000: Activation for server ActiveMQServerImpl::serverUUID=null) at org.apache.activemq.artemis.core.remoting.impl.invm.InVMRegistry.registerAcceptor(InVMRegistry.java:32) 17:28:18,295 ERROR [stderr] (AMQ119000: Activation for server ActiveMQServerImpl::serverUUID=null) at org.apache.activemq.artemis.core.remoting.impl.invm.InVMAcceptor.start(InVMAcceptor.java:110) 17:28:18,296 ERROR [stderr] (AMQ119000: Activation for server ActiveMQServerImpl::serverUUID=null) at org.apache.activemq.artemis.core.remoting.server.impl.RemotingServiceImpl.startAcceptors(RemotingServiceImpl.java:286) 17:28:18,296 ERROR [stderr] (AMQ119000: Activation for server ActiveMQServerImpl::serverUUID=null) at org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl.completeActivation(ActiveMQServerImpl.java:1593) 17:28:18,296 ERROR [stderr] (AMQ119000: Activation for server ActiveMQServerImpl::serverUUID=null) at org.apache.activemq.artemis.core.server.impl.SharedNothingBackupActivation.run(SharedNothingBackupActivation.java:260) 17:28:18,296 ERROR [stderr] (AMQ119000: Activation for server ActiveMQServerImpl::serverUUID=null) at java.lang.Thread.run(Thread.java:745) {code} Live and collocated backup has same server-id for in-vm acceptor. Is it possible to change server-id of in-vm acceptor of collocated backup to value different from live in automatic way? -- This message was sent by Atlassian JIRA (v6.4.11#64026)