improve websocket ping and remodel for rename datapoint

dbm/webSocket.go

@@ -46,6 +46,10 @@ func (d *DBMHandler) WebSocket(c *gin.Context) {
 		d.Unsubscribe(request, id)
 	}
 
+	client.OnWarning = func(s string) {
+		d.Log.Warning("dbmHandler.webSocket.Websocket", "warning on websocket connection: "+s)
+	}
+
 	client.OnError = func(err error) {
 		d.Log.Error("dbmHandler.webSocket.Websocket", "error on websocket connection: "+err.Error())
 	}