[gojomo]

A relatively easy fix, for read-only or idempotent requests. Also, if long-tail latency requests wind up being run twice, this technique might accelerate tip-over saturation. Still, this 'hedged request' idea is good to keep in mind, thanks for the pointer.

The 'tied request' idea from the Dean paper is neat, too, and Heroku could possibly implement that, and give dyno request-handlers the ability to check, "did I win the race to handle this, or can this request be dropped?"