【问题标题】：django project nginx: connect() failed (111: Connection refused) while connecting to upstream ubuntu server on Digital Oceandjango 项目 nginx：连接到 Digital Ocean 上的上游 ubuntu 服务器时连接（）失败（111：连接被拒绝）
【发布时间】：2015-07-17 21:21:54
【问题描述】：

请帮帮我，我使用 django + gunicorn + nginx，但出现错误 nginx：连接到上游时连接（）失败（111：连接被拒绝）我认为问题是9000端口？如何解决这个问题呢？ 502 Bad Gateway

/var/log/nginx/error.log

2015/05/07 04:57:28 [error] 11439#0: *1 connect() failed (111: Connection refused) while connecting to upstream, client: 5.178.184.108, server: 45.55.254.196, request: "GET /favicon.ico HTTP/1.1", upstream: "http://127.0.0.1:9000/favicon.ico", host: "45.55.254.196"

sudo netstat -plntu

Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      28846/nginx     
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      946/sshd        
tcp6       0      0 :::80                   :::*                    LISTEN      28846/nginx     
tcp6       0      0 :::22                   :::*                    LISTEN      946/sshd

我的配置

/etc/nginx/sites-available/hotel

upstream app_server {
    server 127.0.0.1:9000 fail_timeout=0;
}

server {
    listen 80 default_server;
    listen [::]:80 default_server ipv6only=on;

    root /usr/share/nginx/html;
    index index.html index.htm;

    client_max_body_size 4G;
    server_name 45.55.254.196;

    keepalive_timeout 5;

    # Your Django project's media files - amend as required
    location /media  {
        alias /home/django/hotel/media;
    }

    # your Django project's static files - amend as required
    location /static {
        alias /home/django/hotel/static;
    }

    # Proxy the static assests for the Django Admin panel
    location /static/admin {
       alias /usr/local/lib/python3.4/dist-packages/django/contrib/admin/static/admin/;
    }

    location / {
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_redirect off;
        proxy_pass http://app_server;
    }
}

/etc/init/gunicorn.conf

description "Gunicorn daemon for Django project"
start on (local-filesystems and net-device-up IFACE=eth0)
stop on runlevel [!12345]

respawn

setuid django
setgid django
chdir /home/django

exec gunicorn \
    --name=hotel \
    --pythonpath=hotel \
    --bind=127.0.0.1:9000 \
    --config /etc/gunicorn.d/gunicorn.py \
    hotel.wsgi:application

/etc/gunicorn.d/gunicorn.py

from multiprocessing import cpu_count
from os import environ

def max_workers():
    return cpu_count() * 2 + 1

max_requests = 1000
worker_class = 'gevent'
workers = max_workers()

【问题讨论】：

如果直接连接到 9000 端口会发生什么？
@Pixou 坦克回复，我尝试连接 telnet 127.0.0.1 9000 并获得结果 Trying 127.0.0.1... telnet: Unable to connect to remote host: Connection denied 我认为问题是这样的，你有其他意见吗？有什么问题？
所以这意味着你有 gunicorn 的问题，而不是 nginx。我真的不是gunicorn专家，但我会看日志。也许你也可以尝试运行一个 django 开发服务器来检查你的 django 是否运行顺利
@Pixou 当我运行这个命令“gunicorn hotel.wsgi:application -b 127.0.0.1:9000”它工作
那我猜丹尼尔的回答应该有效！

标签： python django ubuntu python-3.x nginx

【解决方案1】：

您似乎还没有开始独角兽。既然你已经为它制作了一个初始化脚本，你应该这样做sudo start gunicorn。

【讨论】：

如果它没有运行 gunicorn hotel.wsgi:application -b 127.0.0.1:9000 得到错误 502 Bad Gateway 45.55.254.196