[文章作者:张宴 本文版本:v1.0 最后修改:2008.07.30 转载请注明原文链接:http://blog.zyan.cc/read.php/361/]

  昨日,有朋友问我,他将Web服务器换成Nginx 0.6.31  + PHP 4.4.7(FastCGI)后,有时候访问会出现“502 Bad Gateway”错误,如何解决。

  我让按照以下两个步骤去解决,最后在第2步中将FastCGI的timeout时间增加为300,问题解决:

  PS:比较羡慕迅雷的Web服务器,16G内存。



  1、查看当前的PHP FastCGI进程数是否够用:
netstat -anpo | grep "php-cgi" | wc -l

  如果实际使用的“FastCGI进程数”接近预设的“FastCGI进程数”,那么,说明“FastCGI进程数”不够用,需要增大。



  2、部分PHP程序的执行时间超过了Nginx的等待时间,可以适当增加nginx.conf配置文件中FastCGI的timeout时间,例如:
......
http
{
......
fastcgi_connect_timeout 300;
fastcgi_send_timeout 300;
fastcgi_read_timeout 300;
......
}
......



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技术大类 » Web服务器 | 评论(120) | 引用(0) | 阅读(217728)
hcl Email
2013-10-31 18:51
张老师,我也出现502的错误,经过排查,发现是apc的问题,我用把yii应用部署到网站上面,这个问题就出来,把apc关掉,就ok,PHP 5.4.21 apc是是最新的
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chares
2015-5-13 16:10
fastcgi_connect_timeout 300;
官方文档好像规定这个不能大于75秒

http://wiki.nginx.org/HttpFastcgiModule#fastcgi_connect_timeout

fastcgi_connect_timeout
Syntax:   fastcgi_connect_timeout time
Default:   60s
Context:   http
server
location
Reference:  fastcgi_connect_timeout

Directive sets timeout period for connection with FastCGI-server. It should be noted that this value can't exceed 75 seconds.
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