nginx upstream configuration

user nginx nginx;
worker_processes 2;

error_log /nginx/nginx_error.log crit;

pid /nginx/nginx.pid;

#Specifies the value for maximum file descriptors that can be opened by this process.


worker_rlimit_nofile 65535;

events
{
  use epoll;
  worker_connections 10000;
}


http {
    include mime.types;
    default_type application/octet-stream;

    log_format main '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"'
            '"$request_body"';
    access_log /nginx//access.log main;

    sendfile on;
    keepalive_timeout 10;


 upstream test{
    server
    server
 }
 
   server {
        listen 80;
        server_name nginx;
        #charset koi8-r;

    location ~^/NginxStatus/{
           stub_status on; #monitor nginx
        }
        location / {

          client_max_body_size 4M;
            proxy_pass http://test ;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

        }
    }

    # HTTPS server
    #
    server {
        listen 443;
        server_name localhost;

        ssl on;
        ssl_certificate /usr/local/webserver/nginx/conf/server.crt;
        ssl_certificate_key /usr/local/webserver/nginx/conf/server.key;
        ssl_session_timeout 20s;

        location / {
            proxy_pass http://jboss ;
        }
    }
}


client_max_body_size 4M;

可以限制nginx代理上传body大小的限制。当通过nginx代理应用服务，上传大文件时，需要修改此参数。

如果上传的文件大小超过了限制，则报413 Request Entity Too Large 错误。