nginx+nagios，执行命令就报错：upstream prematurely closed FastCGI stdout while reading resp

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a807257775 2014-01-07 13:13:51

文章标签 server request nginx commit closed reading 文章分类 Nginx 服务器

1. nagios 执行 commit的一些操作就报如下的错误：

(1) nginx， error.log ：

2013/08/16 18:22:40 [error] 20050#0: *173 upstream prematurely closed FastCGI stdout while reading response header from upstream, client: 192.168.1.2, server: 192.168.1.3, request: "POST /nagios/cgi-bin/cmd.cgi HTTP/1.1", upstream: "fastcgi://unix:/usr/local/nginx/logs/perl-fcgi.sock:", host: "10.10.125.125", referrer: "http:// 192.168.1.3/nagios/cgi-bin/cmd.cgi?cmd_typ=7&host=localhost&service=Total+Processes&force_check"

(2) nginx, access.log 信息：

192.168.1.2- admin [16/Aug/2013:18:56:12 +0800] "POST /nagios/cgi-bin/cmd.cgi?cmd_typ=7&cmd_mod=2&host=localhost&service=Total+Processes&start_time=08-16-2013+18:56:11&force_check=on&btnSubmit=Commit HTTP/1.1" 200 1325 "http:// 192.168.1.3/nagios/cgi-bin/cmd.cgi?cmd_typ=7&host=localhost&service=Total+Processes&force_check" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:22.0) Gecko/20100101 Firefox/22.0"

2. 但是如果从firebug中把url拿出来，通过浏览器直接访问，居然可以，不报错。

如果查看 nginx 的access.log

192.168.1.2- admin [16/Aug/2013:18:56:12 +0800] "GET /nagios/cgi-bin/cmd.cgi?cmd_typ=7&cmd_mod=2&host=localhost&service=Total+Processes&start_time=08-16-2013+18:56:11&force_check=on&btnSubmit=Commit HTTP/1.1" 200 1325 "http://192.168.1.3/nagios/cgi-bin/cmd.cgi?cmd_typ=7&host=localhost&service=Total+Processes&force_check" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:22.0) Gecko/20100101 Firefox/22.0"

如果仔细看上下 access.log的信息，一个是 POST, 一个是GET

如果通过firebug看请求，错误的是 POST, 正确的是 GET

可以大胆推测出， nginx 处理 cgi的请求貌似不能用POST，只能用GET

所以，一种方法可以修改nagios的源代码：

# cd nagios-3.2.3/cgi

# vi cmd.c

找到这行 printf(" \n", COMMAND_CGI);

把post 改为 get

然后重启安装nagioss

# ./configure --with-command-user=nagios --with-command-group=nagios

# make all

# make install