samdeepthink

May 12, 2026 · Backend Development

Designing a Shopping‑Cart Service for Ten‑Million Users

This article explains how to architect a high‑traffic e‑commerce shopping‑cart system that serves tens of millions of users by using a process‑chain engine, Redis Cluster as the primary store, asynchronous persistence to MySQL, and a modular design that supports multiple cart types while ensuring consistency and scalability.