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Dec 3, 2023 · Databases

How Qunar Revamped Its Database Backup System for 27× Speed Gains

The article details Qunar’s senior DBA Qian Fangyuan’s redesign of the company’s database backup and recovery platform, explaining the shortcomings of the legacy system, the new architecture, high‑performance backup techniques using Xtrabackup, dynamic throttling, storage abstraction, and the resulting dramatic improvements in backup and restore speeds and reliability.