nginx limit 限流

最新推荐文章于 2025-06-15 19:48:39 发布

Dream_Flying_BJ

最新推荐文章于 2025-06-15 19:48:39 发布

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分类专栏： nginx 文章标签： nginx limit模块

本文链接：https://blog.youkuaiyun.com/Dream_Flying_BJ/article/details/60971020

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本文详细介绍了Nginx中如何配置限流以避免服务器过载。通过设置共享内存区域及请求速率限制，可以有效地控制请求频率。当请求频率超过设定阈值时，超出部分将被延迟处理直至达到最大突发请求量，之后则返回503错误。

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超过每秒1次的请求就返回503
Sets the shared memory zone and the maximum burst size of requests. If the requests rate exceeds the rate configured for a zone, their processing is delayed such that requests are processed at a defined rate. Excessive requests are delayed until their number exceeds the maximum burst size in which case the request is terminated with an error 503 (Service Temporarily Unavailable). By default, the maximum burst size is equal to zero. For example, the directives

http {
    limit_req_zone $binary_remote_addr zone=one:10m rate=1r/s;

    ...

    server {

        ...

        location /search/ {
            limit_req zone=one burst=5; #这里是说每次请求最大超过5次就返回503
        }

我自己做了个测试