Notes on running infrastructure, and what it costs.
Engineering write-ups, pricing breakdowns and the occasional story from the night shift.

Pricing
What our egress bill would have been
We ran the numbers on 1,140 accounts that moved from AWS. The median one was paying 31% of its bill for traffic leaving the cloud.

Reliability
How we test failover every Thursday
Every Thursday at 10am Eastern we fail over one Postgres cluster in each region on purpose. Here is what broke the first six times.

Company
Why we built in Columbus
Cheap power, a fiber crossroads and a lot of people who know how to run buildings. Our first region was not an accident.

Pricing
Per-second billing, explained with one GPU
A walk through one worker-gpu-1 that ran for 5 hours, 52 minutes and 11 seconds, and exactly what it cost.

Engineering
Moving a 4 TB Postgres database without downtime
Logical replication, a 90 second switch window and the three extensions that almost stopped us.

Company
Notes from the night shift
What the on-call week looks like for the nine engineers who answer our support line.