nginx信号控制

TERM, INT	Quick shutdown
QUIT	Graceful shutdown  优雅的关闭进程,即等请求结束后再关闭
HUP	Configuration reload ,Start the new worker processes with  a new configuration Gracefully shutdown the old worker processes 改变配置文件,平滑的重读配置文件
USR1	Reopen the log files重读日志,在日志按月/日分割时有用
USR2	Upgrade Executable on the fly平滑的升级
WINCH	Gracefully shutdown the worker processes优雅关闭旧的进程(配合USR2来进行升级)

具体语法:

Kill -信号选项 nginx的主进程号
Kill -HUP 4873
Kill -信号控制 'cat/xxx/path/log/nginx.pid'
Kill -USR1 'cat /xxx/path/log/nginx.pid'