TERM, INT | Quick shutdown |
QUIT | |
HUP | Configuration reload ,Start the new worker processes with a new configuration Gracefully shutdown the old worker processes |
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) |
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