21CTO
Dec 24, 2021 · Operations
Why Xi'an’s One‑Code Pass Crashed: Analyzing System Overload and Scaling Fixes
On December 20 the Xi'an health‑code app "One‑Code Pass" suffered a massive outage as a sudden traffic surge overwhelmed its query‑heavy backend, exposing network bottlenecks and a lack of scaling mechanisms, prompting a detailed technical analysis and proposed architectural remedies.
rate limitingscalingsystem overload
0 likes · 9 min read