https://plumephp.com/tags/%E7%BC%93%E5%AD%98%E9%9B%AA%E5%B4%A9/Recent content in 缓存雪崩 on PlumePHPHugozh-CNSun, 27 Sep 2026 09:00:00 +0800https://plumephp.com/distributed-cache-failure-governance/Sun, 27 Sep 2026 09:00:00 +0800https://plumephp.com/distributed-cache-failure-governance/<p>缓存是系统性能的倍增器，但缓存的&quot;故障模式&quot;——击穿、雪崩——会在瞬间把海量请求打到底层数据库，造成级联雪崩。本文深入治理缓存三大故障，重点讲解热点探测、单飞（Singleflight）、限流回源与缓存高可用自动恢复。关于缓存策略的整体框架（穿透/一致性/多级缓存）可先阅读 https://plumephp.com/distributed-cache-strategies/，本文聚焦故障治理的落地机制。</p>