21CTO

Oct 29, 2015 · Backend Development

Scaling Sina's News Comment System: From 3.0 to 5.0 – Key Backend Lessons

This article chronicles the evolution of Sina's news comment platform from a single‑server C++/MySQL prototype to a multi‑node, asynchronous, Python‑based architecture, highlighting the caching, sharding, and queueing techniques that enabled the system to survive massive traffic spikes without downtime.