B FORMAT · BEGINNER · PRO LEVEL
The Stampede
Cache expired at 3am. Every user hit the DB simultaneously.
SCENARIO PREVIEW
Add an RDS read replica to distribute the surge. Bring error rate below 5% before SLA expires.
YOU'LL PRACTICE
Cache expired at 3am. Every user hit the DB simultaneously.
Add an RDS read replica to distribute the surge. Bring error rate below 5% before SLA expires.