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
<code>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includeupstream 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.confserver { 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; }}</code>
运行命令：
<code>sudo cp /home/opsys/running/detect-datacollect-server/deploy/detect-datacollect-server.conf /etc/nginx/sites-availablesudo ln -s /etc/nginx/sites-available/detect-datacollect-server.conf /etc/nginx/sites-enabled/detect-datacollect-server.confsudo service nginx start</code>
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
<code>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]; envir ; TEST for test environ. command=python /home/opsys/running/detect-datacollect-server/code/app.py --port=80%(process_num)02dprocess_name = %(program_name)s%(process_num)dautorestart=trueredirect_stderr=truestdout_logfile=/home/opsys/log/detect-data-stdout.logstdout_logfile_maxbytes=50MBstdout_logfile_backups=10stderr_logfile=/home/opsys/log/detect-data-stderr.logloglevel=infonumprocs = 4numprocs_start = 1</code>
运行命令：
<code>sudo cp /home/opsys/running/detect-datacollect-server/conf/supervisor/detect_data.conf /etc/supervisor/conf.d/sudo service supervisor start</code>
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
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