I have a production web service built with Node JS(HTTP Server) on a Linux box with a HAProxy Load Balancer and wanted some kind of graphical tool to do live reporting on the server. I specially wanted to look at requests/min, request failures, etc. Anything out there people would suggest. I need something non-intrusive b/c I will be handling 20mil+ requests a day.
Have you looked at cube (https://github.com/square/cube), graphite/carbon (http://graphite.wikidot.com/) or opentsdb for such data monitoring/display?