折腾了好久 apache+wsgi 不知道为什么一直在 memory leak

在失去了改源码的激情中, 只能通过换服务的方式解决了.

借鉴 instagram 的典型架构使用

***django + gunicorn + nginx***  跑 app server 来支撑

安装 django 这里就不多说了....

gunicorn 安装其实也非常简单

懒的去折腾些什么了. 所以,直接用 apt-get 安装

```.bash
aptitude install gunicorn
```

### 配置 gunicorn+django 的启动脚本
```.bash
#!/bin/bash
set -e 
LOGFILE=/tmp/guni.log
LOGDIR=$(dirname $LOGFILE)
NUM_WORKERS=3  # cpu core nums * 2 + 1
USER=nobody
GROUP=nogroup
WORKER=gevent # install python gevent
ADDRESS=127.0.0.1:8000

cd /path/to/project/
test -d $LOGDIR || mkdir -p $LOGDIR
exec gunicorn_django -w $NUM_WORKERS --bind=$ADDRESS \
      -k $WORKER --daemon \
      --user=$USER --group=$GROUP --log-level=error \
      --log-file=$LOGFILE 2>>$LOGFILE
```

这样 gunicorn 就安装完成了.

### 接下来, 整合nginx. 同样,安装也不说了.
```.nginx
    user nobody nogroup;
    worker_processes  8;
    
    #error_log  logs/error.log;
    #error_log  logs/error.log  notice;
    #error_log  logs/error.log  info;
    
    pid        logs/nginx.pid;
    
    
    events {
        worker_connections  1024;
        accept_mutex on;
        use epoll;
    }
    
    
    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"';
    
        access_log  logs/access.log  main;
       
        sendfile        on;
        tcp_nopush      on;
        tcp_nodelay     on;
    
        keepalive_timeout  5;
    
        gzip on;
        gzip_min_length  1100;
        gzip_buffers     4 32k;
        gzip_types       text/plain application/x-javascript text/xml text/css;
    
        upstream app_server_djangoapp {
            server 127.0.0.1:8000 fail_timeout=5;
        }
    
        server {
            listen       80;
            server_name  _;
    
            root /path/to/project;
    
            location /static/ {
    	    if ($query_string) {
    		expires max;
    #		log_not_found off;
                 }
             }
    
        location / {
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header Host $http_host;
            proxy_redirect off;
    
            if (!-f $request_filename) {
                proxy_pass http://app_server_djangoapp;
                break;
            }
        }
    
            #error_page  404              /404.html;
    
            # redirect server error pages to the static page /50x.html
            #
            error_page   500 502 503 504  /50x.html;
            location = /50x.html {
                root   html;
            }
        }
    }
```

先介绍到这里, 继续 debug.

参考文档: [http://senko.net/en/django-nginx-gunicorn/](http://senko.net/en/django-nginx-gunicorn/ "http://senko.net/en
/django-nginx-gunicorn/" )

django+gunicorn+nginx 配置

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