django + uwsgi + nginx 实现高并发环境部署 及 报错处理

uWSGI是一个Web服务器，它实现了WSGI协议、uwsgi、http等协议。Nginx中HttpUwsgiModule的作用是与uWSGI服务器进行交换。

1. WSGI是一种Web服务器网关接口。它是一个Web服务器（如nginx，uWSGI等服务器）与web应用（如用Flask框架写的程序）通信的一种规范。
2. uwsgi是一种线路协议而不是通信协议，在此常用于在uWSGI服务器与其他网络服务器的数据通信。
3. 而uWSGI是实现了uwsgi和WSGI两种协议的Web服务器。
4. uwsgi协议是一个uWSGI服务器自有的协议，它用于定义传输信息的类型（type of information），每一个uwsgi packet前4byte为传输信息类型描述，它与WSGI相比是两样东西。

 

uWSGI的主要特点如下

 

1. 超快的性能
2. 低内存占用
3. 多app管理
4. 详尽的日志功能
5. 高度可定制（内存大小限制，服务一定次数后重启等）

 

# 安装使用
# centos安装uwsgi前先install gcc 和 python3-devel

pip install uwsgi


# test.py
def application(env, start_response):
    start_response('200 OK', [('Content-Type','text/html')])
    return [b"asdf"]

#运行

uwsgi --http :8000 --wsgi-file test.py


#用uwsgi 启动django

uwsgi --http :8000 --module mysite.wsgi


#可以把参数写到配置文件里

xxx-uwsgi.ini
 
 
[uwsgi]
http = :9000
#the local unix socket file than commnuincate to Nginx
socket = 127.0.0.1:8001
# abs path
chdir = project path
# Django's wsgi file
wsgi-file = xxx/wsgi.py
# maximum number of worker processes
processes = 4
#thread numbers startched in each worker process
threads = 2
 
#monitor uwsgi status
stats = 127.0.0.1:9191
# clear environment on exit
vacuum          = true


#启动
which uwsgi # check installed path

path crazye-uwsgi.ini

Nginx

 

sudo apt install nginx

path start   同uwsgi

 

 

如图配置  ，粗心在这卡了许久，千万不要写错了！！！

 1 upstream django   # the upstream component nginx needs to connect to
 2 
 3 server 127.0.0.1:xxxx; # for a web port socket (we'll use this first)
 4 
 5 server # configuration of the server
 6 
 7 listen # the domain name it will serve for
 8 
 9  server_name # substitute your machine's IP address or FQDN
10 
11 client_max_body_size # adjust to taste
12 
13 location /media  {
14         alias /path/to/your/mysite/media;  # your Django project's media files - amend as required
15     }
16 
17 location /static {
18         alias /path/to/your/mysite/static; # your Django project's static files - amend as required
19     }
20 
21  # Finally, send all non-media requests to the Django server.
22     location / {
23         uwsgi_pass  django;
24         include     /path/to/your/mysite/uwsgi_params; # the uwsgi_params file you installed
25     }
26 }

description