tornado 使用supervisor管理进程，使用nginx做负载均衡

部署方式

采用nginx作为load banlancer

nginx的配置文件如下，放在/etc/nginx/sites-avaiable/下，然后再sites-enable下面创建软连接
nginx有一个基础配置会include sites-enable下的文件。
以下代码是被配置的http{}部分所include

upstream detect_data_server {
server 127.0.0.1:8001;
server 127.0.0.1:8002;
server 127.0.0.1:8003;
server 127.0.0.1:8004;
}

# Only retry if there was a communication error, not a timeout
# on the Tornado server (to avoid propagating "queries of death"
# to all frontends)
# proxy_next_upstream error;  # this has been in nginx.conf

server {
    listen 80;

    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;
        proxy_pass http://detect_data_server;
    }
}

运行命令：

sudo cp /home/opsys/running/detect-datacollect-server/deploy/detect-datacollect-server.conf 
    /etc/nginx/sites-available
sudo ln -s /etc/nginx/sites-available/detect-datacollect-server.conf 
    /etc/nginx/sites-enabled/detect-datacollect-server.conf
sudo service nginx start

注意：

启动nginx时要注意sites-available目录下面的default，在nginx.conf中不要include了这个文件
不同的系统对应的目录不一样，要注意

使用supervisor进行管理

安装supervisor最好用apt-get install 安装
放在/etc/supervisor/conf.d/目录下面。和nginx一样，supervisor也有一个基础配置
为/etc/supervisor/supervisord.conf，这个文件会去include conf.d中的文件

以下为配置：

; To take advantage of multiple cores, you'll need multiple processes.
[group:gp_detect_data]
programs=detect_data

[program:detect_data]
; environment=MODE="TEST"  ; TEST for test environ. 
command=python /home/opsys/running/detect-datacollect-server/code/app.py --port=80%(process_num)02d
process_name = %(program_name)s%(process_num)d
autorestart=true
redirect_stderr=true
stdout_logfile=/home/opsys/log/detect-data-stdout.log
stdout_logfile_maxbytes=50MB
stdout_logfile_backups=10
stderr_logfile=/home/opsys/log/detect-data-stderr.log
loglevel=info
numprocs = 4
numprocs_start = 1

运行命令：

sudo cp /home/opsys/running/detect-datacollect-server/conf/supervisor/detect_data.conf
    /etc/supervisor/conf.d/
sudo service supervisor start

log目录

具体的要看配置文件中的配置

程序log：/home/opsys/log/detect-data-stdout.log
supervisor的log: /var/log/supervisor/supervisord.log
nginx log：/var/log/nginx/

参考

https://github.com/tornadoweb/tornado/wiki/Deployment

https://gist.github.com/didip/802561

http://gracece.com/2014/03/Tornado-supervisor+nginx/

http://www.tornadoweb.org/en/stable/guide/running.html

第八章：https://github.com/alioth310/itt2zh/blob/master/ch8.html

最后编辑于：2018.05.03 19:54:53