The lack of a good upstream health check capable of millisecond timing in core Nginx is largely why I use HAProxy in stacks where, in theory, Nginx could replac

The lack of a good upstream health check capable of millisecond timing in core Nginx is largely why I use HAProxy in stacks where, in theory, Nginx could replace both HAProxy and the web server behind it (which is often Nginx). Compare, for example, this: https://www.exratione.com/2012/12/websockets-over-ssl-haproxy-nodejs-nginx/ https://www.exratione.com/2012/12/websockets-over-ssl-haprox... With this: https://www.exratione.com/2013/06/websockets-over-ssl-with-nodejs-and-nginx/ https://www.exratione.com/2013/06/websockets-over-ssl-with-n...