Nginx出現502 Bad Gateway 錯誤，
查了Nginx的錯誤記錄檔為：
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- 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”
- 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，最好設成request_terminate_timeout=0;
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- vi /etc/php-fpm.d/www.conf
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- ; The timeout for serving a single request after which the worker process will
- ; be killed. This option should be used when the ‘max_execution_time’ ini option
- ; does not stop script execution for some reason. A value of ’0′ means ‘off’.
- ; Available units: s(econds)(default), m(inutes), h(ours), or d(ays)
- ; Default Value: 0
- request_terminate_timeout = 0
因為這個參數會直接殺掉php進程，然後重啟php進程，這樣前端nginx就會返回104: Connection reset by peer。這個過程是很慢，總體感覺就是網站很卡。
以上就介紹了nginx 502出錯集錦，包括了nginx,502方面的內容，希望對PHP教程有興趣的朋友有所協助。
