JD Tech

May 18, 2024 · Backend Development

Building Inventory Pre‑Reservation Capability: Challenges and Solutions

This article analyzes the problems encountered when constructing inventory pre‑reservation functionality—such as performance bottlenecks, thread‑synchronization, deadlocks, and data‑consistency issues—and presents a set of engineering solutions including async throttling, horizontal stock splitting, Redis caching, transaction‑based DB updates, lock ordering, and consistency‑verification mechanisms, with measured performance improvements.