https://walson.de5.net/tags/postgresql/ Recent content in PostgreSQL on Walson Blog Hugo zh-CN 475166676@qq.com (Walson) 475166676@qq.com (Walson) This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. Fri, 24 Apr 2026 10:00:00 +0800 https://walson.de5.net/posts/concurrent-credit-deduction-bug-postmortem/ Fri, 24 Apr 2026 10:00:00 +0800475166676@qq.com (Walson) https://walson.de5.net/posts/concurrent-credit-deduction-bug-postmortem/ <h2 id="前言">前言</h2> <p>最近在我们的 AI 生成平台上遇到了一个 P0 级别的并发 Bug——用户同时发起多个生成任务时，积分扣款出现了竞态条件，导致积分被永久锁住。从发现到修复经历了两轮迭代（紧急修复 → 优化重构），本文完整记录这次复盘过程。</p>