Industry
Retail e-commerce
Cloud
Microsoft Azure
Black Friday at five times the load, with zero downtime
The platform ran on fixed capacity: no autoscaling, operations by hand. The previous Black Friday took it offline for three to five hours. We rebuilt the peak-load path on AKS — autoscaling, gateway and WAF tuning, probe and connection limits — and rehearsed the whole peak against a simulated Black Friday before the real one arrived.
- Peak throughput
- 10,000+ RPSBefore 2,000 RPS
- Downtime on peak days
- noneBefore 3–5 hrs
- Response under load
- 900 msBefore 2.5 s
- Concurrent checkouts
- 5,200Before 800
What it runs on
- Azure AKS
- Application Gateway
- WAF
- Horizontal Pod Autoscaler
- Peak load simulation













