Debugging MySQL performance at scale

On Monday we shippeddistinct_id aliasing, a service that makes it possible for our customers to link multiple unique identifiers to the same person. It’s running smoothly now, but we ran into some interesting performance problems during development. I’ve been…

How to do cheap backups

This post is a follow up toWhy we moved off the cloud.

As a company, we want to do reliable backups on the cheap. By “cheap” I mean in terms of cost and, more importantly, in terms of developer’s time and attention. In this article, I’ll discuss how we’ve been…