<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Token-Bucket on PlumePHP</title><link>https://plumephp.com/tags/token-bucket/</link><description>Recent content in Token-Bucket on PlumePHP</description><generator>Hugo</generator><language>zh-CN</language><lastBuildDate>Mon, 23 Feb 2026 14:15:00 +0800</lastBuildDate><atom:link href="https://plumephp.com/tags/token-bucket/index.xml" rel="self" type="application/rss+xml"/><item><title>限流与熔断：构建高可用分布式系统的防护机制</title><link>https://plumephp.com/rate-limiting-circuit-breaker/</link><pubDate>Mon, 23 Feb 2026 14:15:00 +0800</pubDate><guid>https://plumephp.com/rate-limiting-circuit-breaker/</guid><description>&lt;h2 id="引言"&gt;引言&lt;/h2&gt;
&lt;p&gt;在高并发场景下，系统可能面临流量突增、下游服务故障等问题。限流和熔断是保护系统的两道防线：限流防止系统被流量压垮，熔断防止故障级联扩散。&lt;/p&gt;
&lt;p&gt;本文将深入分析这两大核心机制的原理与实现，提供可直接应用于生产环境的代码示例。&lt;/p&gt;</description></item></channel></rss>