nginx 上使用 fastcgi-mono-server4 的 Mono 2.11 无法工作

Question

我的示例 MVC3 应用程序在 badgerports.org 的 Mono 2.10.8.1 上运行良好（我使用 ubuntu）。

从源代码安装 Mono 2.11.2 后，同一个应用程序总是会返回 502 Bad Gateway，就像您的情况一样。

我的 nginx 日志如下所示：

[error] 3384#0: *101 upstream sent unexpected FastCGI record: 3 while reading response header from upstream, client: 127.0.0.1, server: localhost, request: "GET / HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "localhost:8000"

调用 fastcgi-mono-server4 并将 printlog 选项设置为 true 后

sudo /opt/mono-2.11.2/bin/fastcgi-mono-server4 /printlog=True /applications=/:/var/www/mono/Mvc3Template /socket=tcp:127.0.0.1:9000

访问 localhost:8000/ 后它将生成此堆栈跟踪

[2012-07-27 14:55:57Z] Notice  Beginning to receive records on connection.
[2012-07-27 14:55:58Z] Error   ERROR PROCESSING REQUEST: System.TypeInitializationException: An exception was thrown by the type initializer for Mono.WebServer.FastCgi.WorkerRequest

Server stack trace: 
  at Mono.WebServer.FastCgi.ApplicationHost.ProcessRequest (Mono.WebServer.FastCgi.Responder responder) [0x00001] in /home/r522/Desktop/mono-2.11.2/build/xsp-2.10.2/src/Mono.WebServer.FastCgi/ApplicationHost.cs:47 
  at (wrapper remoting-invoke-with-check) Mono.WebServer.FastCgi.ApplicationHost:ProcessRequest (Mono.WebServer.FastCgi.Responder)
  at (wrapper xdomain-dispatch) Mono.WebServer.FastCgi.ApplicationHost:ProcessRequest (object,byte[]&,byte[]&)

Exception rethrown at [0]: 
 ---> System.InvalidCastException: Cannot cast from source type to destination type.
  at System.Configuration.ConfigurationManager.get_AppSettings () [0x00000] in <filename unknown>:0 
  at Mono.WebServer.FastCgi.WorkerRequest..cctor () [0x0002c] in /home/r522/Desktop/mono-2.11.2/build/xsp-2.10.2/src/Mono.WebServer.FastCgi/WorkerRequest.cs:50 
  --- End of inner exception stack trace ---
  at (wrapper xdomain-invoke) Mono.WebServer.FastCgi.ApplicationHost:ProcessRequest (Mono.WebServer.FastCgi.Responder)
  at (wrapper remoting-invoke-with-check) Mono.WebServer.FastCgi.ApplicationHost:ProcessRequest (Mono.WebServer.FastCgi.Responder)
  at Mono.WebServer.FastCgi.Responder.Process () [0x00060] in /home/r522/Desktop/mono-2.11.2/build/xsp-2.10.2/src/Mono.WebServer.FastCgi/Responder.cs:90 
[2012-07-27 14:55:58Z] Notice  Finished receiving records on connection

以下是我的一些配置：

#/etc/nginx/sites-enabled/mono

 server {
         listen   8000;
         server_name  localhost;
         access_log   /var/log/nginx/mono.access.log;
         error_log    /var/log/nginx/mono.error.log;
         location / {
                 root /var/www/mono/Mvc3Template;
                 index index.html index.htm default.aspx Default.aspx;
                 fastcgi_index /Home/Index; # Points to HomeController Index Action
                 fastcgi_pass 127.0.0.1:9000;
                 include /etc/nginx/fastcgi_params;
         }
 }

-

# Directory structure
/var/www/mono
├── Mvc3Template
│   ├── bin
│   ├── Content
│   ├── Controllers
|   ... omitted rest
├── Mvc3Template.sln
├── Mvc3Template.suo
├── Mvc3Template.userprefs
├── packages

-

我在这里找到了解决问题的方法：bugzilla.xamarin.com/show_bug.cgi?id=2876（让我感到烦恼的是，该问题据称已于 2012 年 2 月修复 - 据我所知，我编译的 mono 于 6 月发布，但它却无法开箱即用）

我根据那里找到的建议制作了一个脚本来修复 mono 安装，只需将 PREFIX 变量指向你的 mono 目录并运行它：

#!/bin/bash

# Your mono directory
PREFIX=/opt/mono-2.11.2


FILES=('mod-mono-server4'
       'fastcgi-mono-server4'
       'xsp4')

cd $PREFIX/lib/mono/4.0

for file in "${FILES[@]}"
do
   cp "$file.exe" ../4.5
done


cd $PREFIX/bin

for file in "${FILES[@]}"
do
  sed -ie 's|mono/4.0|mono/4.5|g' $file
done

此后，应用程序“运行”，但还不够好。它不再出现 502 错误，而且我得到了一个很好的堆栈跟踪...

System.Web.Compilation.CompilationException
: at IKVM.Reflection.Reader.ModuleReader.ResolveType (Int32 metadataToken, IGenericContext context) [0x00000] in <filename unknown>:0

Description: Error compiling a resource required to service this request. Review your source file and modify it to fix this error.

Details: : at IKVM.Reflection.Reader.ModuleReader.ResolveType (Int32 metadataToken, IGenericContext context) [0x00000] in <filename unknown>:0

Error origin: Compiler

Error source file: ~/Global.asax
Exception stack trace:

所以我自己还有一些事情需要弄清楚，但我希望这些能对你有所帮助。

Answer 1