django+gunicorn+nginx, WebSocket无法正常连接

问题: django+gunicorn+nginx, WebSocket无法正常连接

关键词: nginx, WebSocket

时间: 2017/06/12

描述:

1.  单独使用django, websocket正常连接, 尝试加上gunicorn+nginx后, 连接失败报错码500.
2. websocket:
   

   var socket = new WebSocket("ws://" + window.location.host + "/chatrooms/online_user/" + userid + "/");

3. /etc/nginx/sites-avaliabal/default 配置如下:

   server {
   	listen 80; 	
   
   	server_name 192.168.31.137;
           access_log /var/log/nginx/bbank.log;
   
   	location / {
                   proxy_pass http://127.0.0.1:8000;
                   proxy_http_version 1.1;
                   proxy_set_header Host $host;
                   proxy_set_header X-Real-IP $remote_addr;
                   proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                   
   	}

   
   

解决: 

1. 参考: 文章
2. 修改default:

   server {
   	listen 80; 	
   
   	server_name 192.168.31.137;
           access_log /var/log/nginx/bbank.log;
   
   	location / {
                   proxy_pass http://127.0.0.1:8000;
                   proxy_http_version 1.1;
                   proxy_set_header Host $host;
                   proxy_set_header X-Real-IP $remote_addr;
                   proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                   
                   proxy_set_header Upgrade $http_upgrade;
                   proxy_set_header Connection "upgrade";
   	}

   至此, websocket正常连接.
3. 衍生问题:
   (1)websocket连接30秒后自动断开.
       2017/06/12: 暂且通过配置default文件在server中加入proxy_read_timeout = 3600s; 即,保持连接1小时.
   (2)websocket断开后, 才可以正常获取页面信息.
       2017/06/12: 1.意外发现django+nginx, websocket正常使用, 问题出在gunicorn. 待更新
                           2.解决: gunicorn yourapp.wsgi:application(这样启动gunicorn好像只能单线程工作, 这样就会出现上面的情况),
           而采用 gunicorn --worker-class=gevent yourapp.wsgi:application 的形式, 好像就变成多线程工作了.