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Update annotation-use-case.md
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johnlanni authored Nov 16, 2023
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## 单机限流

> **提示**
> Higress商业版具备全局限流能力,详情查看[商业版文档](https://help.aliyun.com/zh/mse/user-guide/advanced-usage-of-mse-ingress?spm=a2c4g.11186623.0.0.2e3a3db3eYcspD#862f08d03d4d3)中全局限流一节的介绍
支持针对路由级别的单机限流策略,在设定的时间周期内,限制每个网关副本匹配在某个路由上的请求数量不大于阈值。该限流是针对单机级别,即配置的阈值在每个网关实例进行流控。

**提示**
Higress商业版具备全局限流能力,详情查看[商业版文档](https://help.aliyun.com/zh/mse/user-guide/advanced-usage-of-mse-ingress?spm=a2c4g.11186623.0.0.2e3a3db3eYcspD#862f08d03d4d3)中全局限流一节的介绍
- higress.io/route-limit-rpm:该Ingress定义的路由在每个网关实例上每分钟最大请求次数。瞬时最大请求次数为该值乘以limit-burst-multiplier。
- higress.io/route-limit-rps:该Ingress定义的路由在每个网关实例上每秒最大请求次数。瞬时最大请求次数为该值乘以limit-burst-multiplier。
- higress.io/route-limit-burst-multiplier:瞬时最大请求次数的因子,默认为5。

例如:

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