nginx 502出错集锦 nginx负载均衡 实战nginx nginx反向代

Nginx出现502 Bad Gateway 错误，

查了Nginx的错误日志为：

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1. 2014/08/02 16:14:31 [error] 17029#0: *17941 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 210.61.12.2, server: blog.lixiphp.com, request: “POST /api/1.0 HTTP/1.1″, upstream: “fastcgi://127.0.0.1:9000″, host: “blog.lixiphp.com”
2. 2014/08/02 16:24:52 [error] 29615#0: *3 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 58.220.197.35, server: blog.lixiphp.com, request: “GET /404 HTTP/1.1″, upstream: “fastcgi://127.0.0.1:9000″, host: “blog.lixiphp.com”

不要使用php-fpm的request_terminate_timeout，最好设成request_terminate_timeout=0;

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1. vi /etc/php-fpm.d/www.conf

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1. ; The timeout for serving a single request after which the worker process will
2. ; be killed. This option should be used when the ‘max_execution_time’ ini option
3. ; does not stop script execution for some reason. A value of ’0′ means ‘off’.
4. ; Available units: s(econds)(default), m(inutes), h(ours), or d(ays)
5. ; Default Value: 0
6. request_terminate_timeout = 0

因为这个参数会直接杀掉php进程，然后重启php进程，这样前端nginx就会返回104: Connection reset by peer。这个过程是很慢，总体感觉就是网站很卡。

以上就介绍了nginx 502出错集锦，包括了nginx,502方面的内容，希望对PHP教程有兴趣的朋友有所帮助。