I have created a cluster using ambari UI.so Is it possible to scale it through Ambari Blueprint API? When I am trying to scale (adding one node with services) it is showing the following message: "message" : "Topology validation failed: org.apache.ambari.server.topology.InvalidTopologyException: Unable to retrieve cluster topology for cluster. This is most likely a result of trying to scale a cluster via the API which was created using the Ambari UI. At this time only clusters created via the API using a blueprint can be scaled with this API. Please suggest me whether its possible or not to add nodes using API if my cluster was previously created by ambari UI? ... View more