Flash sale meltdown

Incident drill · Advanced

What is happening

Alert: error rate 30%, p95 6 seconds, one app server just crashed.

The festival flash sale sends seven times normal traffic to two app servers and one database.

Keep pages fast and orders flowing within the monthly budget.

You have 8 changes and 15 minutes. A change is adding or removing a part or a connection, or changing a part’s settings. Fewer changes and less time score higher.