Qunar Tech Salon

Jun 16, 2020 · Operations

Qunar's Multi-IDC Deployment and Fault Self‑Healing Architecture

This article describes how Qunar scaled its IDC infrastructure, introduced multi‑IDC deployment, automated DNS‑based load balancing, open‑source DNSDB, and an IDC proxy built on Squid to achieve rapid fault self‑healing and transparent traffic switching for both user and third‑party access.