Curriculum
Module 08
Releasing
Getting a change in front of users without an outage, and measuring whether you did.
5 lessons · 1 videos · 27 min
- 08.01
MTBF, MTTR, and Their Limits
Say why MTTR is an unreliable measure of reliability, and what to use instead.
- 08.02
The Release Problem
State what makes releasing hard independently of the tool doing it.
- 08.03
Strategies Compared
Choose between rolling, blue-green and canary on rollback speed, cost and blast radius.
- 08.04
Health Checks and Draining
Set readiness and liveness so a shutting-down instance stops taking work, and avoid the deep-check restart cascade.
- 08.05
Rollback Beats Forward-Fix
Argue from feedback-loop length why halving recovery time buys more availability than doubling uptime.