There is, sort of. If you're hosting on Linux, you can use iptables to artificially delay responses. That and some other methods are described in a post on the

There is, sort of. If you're hosting on Linux, you can use iptables to artificially delay responses. That and some other methods are described in a post on the Yelp engineering blog[1]. 1: http://engineeringblog.yelp.com/2015/04/true-zero-downtime-haproxy-reloads.html http://engineeringblog.yelp.com/2015/04/true-zero-downtime-h...