Ctrip Technology

Oct 14, 2021 · Backend Development

Optimizing a High‑Concurrency Ticket Reservation System for the "Travel with Love" Campaign

This article presents a comprehensive case study of the technical challenges and optimization strategies—including traffic surges, cache penetration, cache breakdown, limit‑purchase handling, and inventory deduction—encountered during a large‑scale ticket reservation event, and demonstrates how systematic backend improvements achieved over 50% performance gains and 98% cache hit rate.