用nginx和uWSGI提供django

我跟着this post去服务我的django项目.该项目与manage.py runserver运行良好,我想将其设置为生产.这是我的设置文件：

nginx.conf：

upstream django {
    server /tmp/vc.sock;
    #server 10.9.1.137:8002;
}

server {
    listen      8001;
    server_name 10.9.1.137;
    charset     utf-8;
    client_max_body_size 25M;

    location /media  {
        alias /home/deploy/vc/media;
    }
    location /static {
        alias /home/deploy/vc/static;
    }


    location / {
        uwsgi_pass  django;
        include     /etc/nginx/uwsgi_params;
    }
}

uwsgi.ini：

[uwsgi]

chdir           = /home/deploy/vc
wsgi-file      = vc/wsgi.py

master          = true
processes       = 2
#socket          = :8002
socket          = /tmp/vc.sock
chmod-socket    = 666
vacuum          = true

如果我使用TCP端口套接字(服务器10.9.1.137:8002和套接字=：8002),它会没事的.但是,如果我将它们注释掉并使用Unix套接字(服务器/tmp/vc.sock和socket = /tmp/vc.sock),服务器将返回502错误.我应该怎么解决？

这是运行/etc/init.d/nginx restart时的nginx错误日志

nginx: [emerg] invalid host in upstream "/tmp/vc.sock" in /etc/nginx/conf.d/vc.conf:2
nginx: configuration file /etc/nginx/nginx.conf test failed

当我运行uwsgi –ini vc / uwsgi.ini时,这是警告：

*** WARNING: you are running uWSGI as root !!! (use the --uid flag) *** 

我不能以root身份运行uWSGI吗？