Fix PUT /config response and log errors.

server/peer_server_handlers.go

@@ -223,6 +223,8 @@ func (ps *PeerServer) setClusterConfigHttpHandler(w http.ResponseWriter, req *ht
 
 	log.Debugf("[recv] Update Cluster Config Request")
 	ps.server.Dispatch(c, w, req)
+
+	json.NewEncoder(w).Encode(&ps.clusterConfig)
 }
 
 // Response to the name request

server/registry.go

@@ -273,7 +273,7 @@ func (r *Registry) urls(key, leaderName, selfName string, url func(key, name str
 		}
 	}
 
-	log.Infof("URLs: %s / %s (%s)", key, leaderName, selfName, strings.Join(urls, ","))
+	log.Infof("URLs: %s: %s / %s (%s)", key, leaderName, selfName, strings.Join(urls, ","))
 
 	return urls
 }