Hi @unix196,   I think you are right about the the host is not in the cluster.    You may have hosts that are already "managed" but are not part of a cluster. You can have managed hosts that are not part of a cluster when you have added hosts to Cloudera Manager either through the Add Host wizard, or by manually installing the Cloudera Manager agent onto hosts where you have not install any other services. This will also be the case if you remove all services from a host so that it no longer is part of a cluster.   See more details about this in documentation here.   Thanks, Li ... View more