Designing a High‑Concurrency Flash Sale System: Architecture, Challenges & Solutions
This article dissects the architecture of a flash‑sale (秒杀) system, outlining the typical e‑commerce flow, the unique characteristics of flash sales, the technical challenges of massive concurrent requests, and detailed solutions spanning isolation, static page delivery, CDN caching, dynamic URLs, request throttling, queue design, database sharding, caching strategies, overload protection, anti‑cheat mechanisms, and data safety techniques.
