为了充分利用多核CPU，并且为了减少同步代码中的阻塞影响，在部署Tornado的时候需要开启多个进程(最好为每个CPU核心开启一个进程)

因为Tornado自带的服务器性能很高，所以我们只需开启多个Tornado进程。为了对外有统一的接口，并且可以分发用户的请求到不同的Tornado进程上，我们用Nginx来进行代理。

1. supervisor

为了统一管理Tornado的多个进程，我们可以借助supervisor工具。

安装

sudo pip install supervisor

配置

运行echo_supervisord_conf命令输出默认的配置项，可以如下操作将默认配置保存到文件中

echo_supervisord_conf > supervisord.conf

vim 打开编辑supervisord.conf文件，修改

[include]

files = relative/directory/*.ini

为

[include]

files = /etc/supervisor/*.conf

include选项指明包含的其他配置文件。

将编辑后的supervisord.conf文件复制到/etc/目录下

sudo cp supervisord.conf /etc/

然后我们在/etc目录下新建子目录supervisor(与配置文件里的选项相同)，并在/etc/supervisor/中新建tornado管理的配置文件tornado.conf。

[group:tornadoes]

programs=tornado-8000,tornado-8001,tornado-8002,tornado-8003

[program:tornado-8000]

command=/home/python/.virtualenvs/tornado_py2/bin/python /home/python/Documents/demo/chat /server.py --port=8000

directory=/home/python/Documents/demo/chat

user=python

autorestart=true

redirect_stderr=true

stdout_logfile=/home/python/tornado.log

loglevel=info

[program:tornado-8001]

command=/home/python/.virtualenvs/tornado_py2/bin/python /home/python/Documents/demo/chat /server.py --port=8001

directory=/home/python/Documents/demo/chat

user=python

autorestart=true

redirect_stderr=true

stdout_logfile=/home/python/tornado.log

loglevel=info

[program:tornado-8002]

command=/home/python/.virtualenvs/tornado_py2/bin/python /home/python/Documents/demo/chat /server.py --port=8002

directory=/home/python/Documents/demo/chat

user=python

autorestart=true

redirect_stderr=true

stdout_logfile=/home/python/tornado.log

loglevel=info

[program:tornado-8003]

command=/home/python/.virtualenvs/tornado_py2/bin/python /home/python/Documents/demo/chat /server.py --port=8003

directory=/home/python/Documents/demo/chat

user=python

autorestart=true

redirect_stderr=true

stdout_logfile=/home/python/tornado.log

loglevel=info

启动

supervisord -c /etc/supervisord.conf

查看 supervisord 是否在运行：

ps aux | grep supervisord

supervisorctl

我们可以利用supervisorctl来管理supervisor。

supervisorctl

> status # 查看程序状态

> stop tornadoes:* # 关闭 tornadoes组 程序

> start tornadoes:* # 启动 tornadoes组 程序

> restart tornadoes:* # 重启 tornadoes组 程序

> update ＃ 重启配置文件修改过的程序

执行status命令时，显示如下信息说明tornado程序运行正常：

supervisor> status

tornadoes:tornado-8000 RUNNING pid 32091, uptime 00:00:02

tornadoes:tornado-8001 RUNNING pid 32092, uptime 00:00:02

tornadoes:tornado-8002 RUNNING pid 32093, uptime 00:00:02

tornadoes:tornado-8003 RUNNING pid 32094, uptime 00:00:02

2. nginx

对于使用ubuntu apt-get 安装nginx，其配置文件位于/etc/nginx/sites-available中，修改default文件如下：

upstream tornadoes {

server 127.0.0.1:8000;

server 127.0.0.1:8001;

server 127.0.0.1:8002;

server 127.0.0.1:8003;

}

upstream websocket {

server 127.0.0.1:8000;

}

server {

listen 80 default_server;

listen [::]:80 default_server;

server_name _;

location /static/ {

root /home/python/Documents/demo/chat;

if ($query_string) {

expires max;

}

}

location /chat {

proxy_pass http://websocket/chat;

proxy_http_version 1.1;

proxy_set_header Upgrade $http_upgrade;

proxy_set_header Connection "upgrade";

}

location / {

proxy_pass_header Server;

proxy_set_header Host $http_host;

proxy_redirect off;

proxy_set_header X-Real-IP $remote_addr;

proxy_set_header X-Scheme $scheme; # 协议 http https

proxy_pass http://tornadoes;

}

}

启动nginx

service nginx start # 启动

service nginx stop # 停止

service nginx restart # 重启

源码安装版本

启动：sudo sbin/nginx

停止：sudo sbin/nginx -s stop

重启：sudo sbin/nginx -s reload