[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;
......
}
......



Tags: , , , ,
技术大类 » Web服务器 | 评论(105) | 引用(0) | 阅读(183353)
ta
2009-2-8 23:49
我的是 nginx/0.6.31 應該點做... 多謝...
hid
2009-2-16 10:40
引用
 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。

这个在哪加大呢?
mk2 Email Homepage
2009-4-22 09:53
smoke访问量太大的话,似乎怎样设置,都话出现bad gateway错误的。。。
Max.L Email
2009-5-11 01:23
似乎php模块丢失,wget也会出现502错误,reload一下可以解决?
dh20156 Homepage
2009-5-12 18:34
貌似按照楼主给出的步骤全做完就会出现502,之前只做了php-fpm和nginx反而可以。
dh20156
2009-5-13 14:02
成功架设Nginx+Php Web服务器之后的一个总结,成功设置Nginx开启多域名多站点,并且不会出现502 Bad Gateway错误!
http://www.w3cgroup.com/article.asp?id=250
hmfsmile
2009-6-10 13:24
接近预设的“FastCGI进程数”这个在那里查看。
如何知道预设的是多少
小鹏
2010-5-17 18:29
宴哥,我最近使用你的nginx+php文档,来跑我的php论坛,首页是在测试,环境是VM和rhel5.4
   但是自从第一次安装好后,后来重新编译就不行,很多时候都是php不能正常显示,测试页也不能打开,
502 bad gateway这个提示。。。
胡军 Email
2010-8-21 00:24
嘿嘿  我也发现这样的问题了  结果是nginx的日志文件太大   现在已经好了     每天定时替换日志文件,    不过还在想有其他的方式没。    不晓得我是特例还是日志文件大了也会导致502   如果张老师验证会导致还希望加上,
Duron Email Homepage
2010-9-18 17:00
依然不行,下面是通过分析日志得出的出错最小时间段内的错误日志2010/09/18 05:43:47 [info] 29174#0: *44016 client 99.18.90.88 closed keepalive connection2010/09/18 05:43:50 [info] 29172#0: *44108 client 61.64.173.132 closed keepalive connection2010/09/18 05:43:51 [info] 29172#0: *44115 client 61.64.173.132 closed keepalive connection2010/09/18 05:43:52 [info] 29174#0: *43779 client 72.91.76.178 closed keepalive connection (104: Connection reset by peer)2010/09/18 05:43:56 [info] 29174#0: *43886 client 60.165.183.187 closed keepalive connection (104: Connection reset by peer)2010/09/18 05:44:02 [info] 29172#0: *44129 client 61.64.173.132 closed keepalive connection2010/09/18 05:44:03 [info] 29172#0: *44130 client 61.64.173.132 closed keepalive connection2010/09/18 05:44:05 [info] 29172#0: *44113 client closed prematurely connection, so upstream connection is closed too (104: Connection reset by peer) while sending request to upstream, client: 66.63.164.2, server: www.socialbookmarkworld.com, request: "GET /newuser.php HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "domain.com"
一颗白菜
2011-3-7 10:32
张老师,您好.我现在正在学习LINUX系统.这2天装NGINX,发现NGINX不能访问PHP,报错,502 Bad GateWay.我看了你的文章,但是还是没解决出来.如果可以的话,我希望张宴老师加下我QQ,指点我下.万分感激.谢谢,我的QQ:303751078
yirihan
2011-3-13 22:10
PHP-CGI经常会卡几分钟,流量从几十M掉到几十K,网站很卡,一会又好了...... 我完全按照张总的教程来的而且整个编译过程没有出现错误提示。我是 centos环境
holmes
2011-6-22 17:09
我的网站 ps -aux| grep 'php-cgi'|wc -l  是99
而netstat -anpo|grep 'php-cgi'|wc -l 怎么一直的5

有点疑惑,望解答,谢谢
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jzswjy2005 Email
2011-8-9 15:50
我在开启PHP——FPM时报这个错:
Starting php_fpm Error in argument 1, char 1: no argument for optio           n -
Usage: php-cgi [-q] [-h] [-s] [-v] [-i] [-f <file>]
       php-cgi <file> [args...]
  -a               Run interactively
  -C               Do not chdir to the script's directory
  -c <path>|<file> Look for php.ini file in this directory
  -n               No php.ini file will be used
  -d foo[=bar]     Define INI entry foo with value 'bar'
  -e               Generate extended information for debugger/profi           ler
  -f <file>        Parse <file>.  Implies `-q'
  -h               This help
  -i               PHP information
  -l               Syntax check only (lint)
  -m               Show compiled in modules
  -q               Quiet-mode.  Suppress HTTP Header output.
  -s               Display colour syntax highlighted source.
  -v               Version number
  -w               Display source with stripped comments and whites           pace.
  -z <file>        Load Zend extension <file>.
................................... failed
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十窝羊
2011-11-23 11:37
张老师 nginx出现502错误 ,php-fpm.log里出现报错:[NOTICE] fpm_got_signal(), line 48: received SIGCHLD [WARNING] fpm_children_bury(), line 215: child 11878 (pool default) exited on signal 15 SIGTERM after 237.287131 seconds from start [NOTICE] fpm_children_make(), line 352: child 12422 (pool default) started [ERROR] fpm_stdio_prepare_pipes(), line 197: pipe() failed: Too many open files (24) [NOTICE] fpm_got_signal(), line 48: received SIGCHLD [WARNING] fpm_children_bury(), line 215: child 11879 (pool default) exited on signal 15 SIGTERM after 237.157199 se [NOTICE] fpm_children_make(), line 352: child 12423 (pool default) started [ERROR] fpm_stdio_prepare_pipes(), line 197: pipe() failed: Too many open files (24) [WARNING] fpm_request_check_timed_out(), line 158: child 11880, script '/founder/wwwroot/bbs/home.php' (pool default) execution timed out (5.085873 sec), terminating我的ulimit已经增加了# vi /etc/sysctl.conf 底部添加fs.file-max=65535 #vi /etc/security/limits.conf加上* soft nofile 65535* hard nofile 65535
aophgv5osf Email Homepage
2011-11-23 22:48
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