Lab 11 • Distributed Systems Architecture
System Design Tradeoff Simulator
Architect an auto-scaling assessment backend. Size cache offloading, message queue buffering, and replica capacities under peak traffic loads without request drops.
App Cluster Load
80%
1200 RPS / 1500 Cap
Database Utilization
30%
70% Cache Offload
P99 Latency
25 ms
SLA Target < 250ms
Packet / Request Drops
0 rps
Buffered: 0 rps
Traffic & Infrastructure Parameters
Peak Inbound Traffic Arrival Rate1200 RPS
App Server Replicas (500 RPS each)3 nodes
Database Read Replicas (400 RPS each)2 replicas
Architecture Topology & Data Path
Cloudflare Edge & CDN1200 RPS Inbound
Redis Cache Layer (70% TTL Offload)ONLINE
App Compute Pods (3 Replicas)1500 RPS Capacity
Kafka Queue
Buffering spikes
PostgreSQL Store
2 Read Replicas
Architecture passes SLA: Zero request drops, P99 < 300ms