Bruno Lacerda [https://community.jboss.org/people/bsl.lacerda] created the discussion "Unable to connect to JGroups channel" To view the discussion, visit: https://community.jboss.org/message/765575#765575 -------------------------------------------------------------- Hi all! I manage a cluster with two servers and four nodes. Each server has two instances of JBoss EAP 5. Everything were goin on, but suddenly two nodes on the same server lost connection to JGroups and now they do not connect more. I've already checked the MultiCast UDP with McastSenderTest and McastReceiverTest programs and MultiCast UDP works. If I change the UDP address and port and start the problematic instances, JGroups works but with the UDP addres of the other server instances the problem back. Thanks in advance! Sorry for the english mistakes. This is the stack trace of the exception. [code] 2012-10-16 17:43:31,967 INFO  [org.jgroups.JChannel] (main) JGroups version: 2.6.19.Final 2012-10-16 17:43:32,634 INFO  [org.jboss.ha.framework.interfaces.HAPartition.A] (main) Initializing partition A 2012-10-16 17:43:32,875 INFO  [org.jgroups.JChannel] (main) JGroups version: 2.6.19.Final 2012-10-16 17:43:32,947 INFO  [org.jboss.ha.framework.interfaces.HAPartition.A] (JBoss System Threads(1)-3) Number of cluster members: 3 2012-10-16 17:43:32,951 INFO  [org.jboss.ha.framework.interfaces.HAPartition.A] (JBoss System Threads(1)-3) Other members: 2 2012-10-16 17:44:33,244 ERROR [org.jboss.kernel.plugins.dependency.AbstractKernelController] (main) Error installing to Start: name=HAPartition state=Create org.jboss.cache.CacheException: java.lang.reflect.InvocationTargetException         at org.jboss.cache.util.reflect.ReflectionUtil.invokeAccessibly(ReflectionUtil.java:148)         at org.jboss.cache.factories.ComponentRegistry$PrioritizedMethod.invoke(ComponentRegistry.java:1012)         at org.jboss.cache.factories.ComponentRegistry.internalStart(ComponentRegistry.java:778)         at org.jboss.cache.factories.ComponentRegistry.start(ComponentRegistry.java:632)         at org.jboss.cache.invocation.CacheInvocationDelegate.start(CacheInvocationDelegate.java:345)         at org.jboss.ha.cachemanager.CacheManagerManagedCache.start(CacheManagerManagedCache.java:104)         at org.jboss.ha.framework.server.HAPartitionCacheHandlerImpl.startCache(HAPartitionCacheHandlerImpl.java:66)         at org.jboss.ha.framework.server.ClusterPartition.startService(ClusterPartition.java:397)         at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:376)         at org.jboss.system.ServiceMBeanSupport.pojoStart(ServiceMBeanSupport.java:216)         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)         at java.lang.reflect.Method.invoke(Method.java:597)         at org.jboss.reflect.plugins.introspection.ReflectionUtils.invoke(ReflectionUtils.java:59)         at org.jboss.reflect.plugins.introspection.ReflectMethodInfoImpl.invoke(ReflectMethodInfoImpl.java:150)         at org.jboss.joinpoint.plugins.BasicMethodJoinPoint.dispatch(BasicMethodJoinPoint.java:66)         at org.jboss.kernel.plugins.dependency.KernelControllerContextAction$JoinpointDispatchWrapper.execute(KernelControllerContextAction.java:243)         at org.jboss.kernel.plugins.dependency.ExecutionWrapper.execute(ExecutionWrapper.java:47)         at org.jboss.kernel.plugins.dependency.KernelControllerContextAction.dispatchExecutionWrapper(KernelControllerContextAction.java:111)         at org.jboss.kernel.plugins.dependency.KernelControllerContextAction.dispatchJoinPoint(KernelControllerContextAction.java:72)         at org.jboss.kernel.plugins.dependency.LifecycleAction.installActionInternal(LifecycleAction.java:221)         at org.jboss.kernel.plugins.dependency.InstallsAwareAction.installAction(InstallsAwareAction.java:54)         at org.jboss.kernel.plugins.dependency.InstallsAwareAction.installAction(InstallsAwareAction.java:42)         at org.jboss.dependency.plugins.action.SimpleControllerContextAction.simpleInstallAction(SimpleControllerContextAction.java:62)         at org.jboss.dependency.plugins.action.AccessControllerContextAction.install(AccessControllerContextAction.java:71)         at org.jboss.dependency.plugins.AbstractControllerContextActions.install(AbstractControllerContextActions.java:51)         at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)         at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1652)         at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:938)         at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1082)         at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:988)         at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:778)         at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:543)         at org.jboss.deployers.vfs.deployer.kernel.BeanMetaDataDeployer.deploy(BeanMetaDataDeployer.java:125)         at org.jboss.deployers.vfs.deployer.kernel.BeanMetaDataDeployer.deploy(BeanMetaDataDeployer.java:52)         at org.jboss.deployers.spi.deployer.helpers.AbstractSimpleRealDeployer.internalDeploy(AbstractSimpleRealDeployer.java:62)         at org.jboss.deployers.spi.deployer.helpers.AbstractRealDeployer.deploy(AbstractRealDeployer.java:55)         at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:179)         at org.jboss.deployers.plugins.deployers.DeployersImpl.doDeploy(DeployersImpl.java:1454)         at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1172)         at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1193)         at org.jboss.deployers.plugins.deployers.DeployersImpl.install(DeployersImpl.java:1113)         at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)         at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1652)         at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:938)         at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1082)         at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:988)         at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:826)         at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:556)         at org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:789)         at org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:699)         at org.jboss.system.server.profileservice.repository.MainDeployerAdapter.process(MainDeployerAdapter.java:117)         at org.jboss.system.server.profileservice.repository.ProfileDeployAction.install(ProfileDeployAction.java:70)         at org.jboss.system.server.profileservice.repository.AbstractProfileAction.install(AbstractProfileAction.java:53)         at org.jboss.system.server.profileservice.repository.AbstractProfileService.install(AbstractProfileService.java:403)         at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)         at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1652)         at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:938)         at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1082)         at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:988)         at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:778)         at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:543)         at org.jboss.system.server.profileservice.repository.AbstractProfileService.registerProfile(AbstractProfileService.java:308)         at org.jboss.system.server.profileservice.ProfileServiceBootstrap.start(ProfileServiceBootstrap.java:256)         at org.jboss.bootstrap.AbstractServerImpl.start(AbstractServerImpl.java:461)         at org.jboss.Main.boot(Main.java:221)         at org.jboss.Main$1.run(Main.java:556)         at java.lang.Thread.run(Thread.java:662) Caused by: java.lang.reflect.InvocationTargetException         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)         at java.lang.reflect.Method.invoke(Method.java:597)         at org.jboss.cache.util.reflect.ReflectionUtil.invokeAccessibly(ReflectionUtil.java:144)         ... 68 more Caused by: org.jboss.cache.CacheException: Unable to connect to JGroups channel         at org.jboss.cache.RPCManagerImpl.start(RPCManagerImpl.java:378)         ... 73 more Caused by: org.jgroups.StateTransferException: 10.10.1.129:55300 could not fetch state null from null         at org.jgroups.JChannel.connect(JChannel.java:464)         at org.jboss.cache.RPCManagerImpl.start(RPCManagerImpl.java:371)         ... 73 more Caused by: org.jgroups.StateTransferException: 10.10.1.129:55300 could not fetch state null from null         at org.jgroups.JChannel.connect(JChannel.java:459)         ... 74 more [/code] -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/765575#765575] Start a new discussion in JBoss Cache at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]