• 查看概况
• 守护进程
  • systemd
  • supervisor

概况查看 {#show}

进程运行时

/proc/{pid}

• 查看进程的执行文件

  ls -al /proc/{pid}/exe
  

发送信号到进程

 kill 9 1000 1001 1002
 pkill nginx

守护进程

systemd {#systemd}

vim /usr/lib/systemd/system/wafcdn.service 配置文件

[Unit]
Description=WafCdn Service
After=network.target

[Service]
Type=simple
ExecStart=/usr/local/wafcdn/wafcdn
WorkingDirectory=/usr/local/wafcdn/wafcdn

[Install]
WantedBy=multi-user.target

• systemctl disable|enable|status|start|stop|restart wafcdn

Supervisor {#supervisor}

安装Supervisor

/tmp文件会在空闲时间被清理

系统open file limit 设置

1. 安装 pip install supervisor
2. 生成配置文件 echo_supervisord_conf > /etc/supervisord.conf
3. 添加supervisor到守护进程 vim /usr/lib/systemd/system/supervisord.service

#supervisord.service

[Unit] 
Description=Supervisor daemon

[Service] 
Type=forking 
ExecStart=/usr/local/bin/supervisord -c /etc/supervisord.conf
ExecStop=/usr/local/bin/supervisorctl shutdown 
ExecReload=/usr/local/bin/supervisorctl reload 
KillMode=process 
Restart=on-failure 
RestartSec=42s

[Install] 
WantedBy=multi-user.target

4. 设置守护进程启动

systemctl enable supervisord
systemctl start supervisord
systemctl status supervisord

5. 确定supervisor配置文件 /etc/supervisord.conf

[include] 
files = /etc/supervisord.d/*.ini

配置supervisor启动程序

vim /etc/supervisord.d/cdnload.ini

[program:cdn]
command=/www/wwwroot/cdnload
directory=/www/wwwroot
autorestart=true
stdout_logfile=/www/wwwlogs/cdnload.out.log
stderr_logfile=/www/wwwlogs/cdnload.err.log
user=root

管理supervisor

supervisorctl status|update|reload

管理supervisor进程

supervisorctl start|stop|restart|clear {program:name}