使用 redis 做限流
背景 事情是这样来的,最近2天 tool.lu 的 uv 并没有大幅的增长,但是 pv 的涨幅却很大,造成服务器的 load 一度超过了 20,想必是被攻击,做过php-fpm的优化,收效甚微。故想到了限流 限流的使用场景 API的调用次数限制 防止频繁刷新 etc... 想法和实现 其
背景
事情是这样来的,最近2天 tool.lu 的 uv 并没有大幅的增长,但是 pv 的涨幅却很大,造成服务器的 load 一度超过了 20,想必是被攻击,做过php-fpm的优化,收效甚微。故想到了限流
限流的使用场景
- API的调用次数限制
- 防止频繁刷新
- etc...
想法和实现
其实我是参考了下面这篇文章的实现,至于为什么要这么做,我的考虑跟他文章中提到的是一致的,可以查看原文
Rate limiting with Redis
原文中提供了大段的文字说明,于是我根据他的说明,做了一幅图,仅供参考:
原文地址:使用 redis 做限流, 感谢原作者分享。

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