mailgun/vulcand — pull request #114 by klizhentas (2014-11-01 01:19:34+00:00)
Title: Introducing circuit breaker middleware

Implements circuit breaker similar to https://github.com/Netflix/Hystrix/wiki/How-it-Works

Vulcand circuit breaker watches the error condtion, in case if the condition matches the realtime metrics,
it activates the fallback scenario, e.g. returns the predefined response or redirects the request to another location.