清理/ var / log / nginx日志文件

Question

我在/ var / log和/ var / log / nginx下有超过10.0G的日志。我该如何安全地清洁它？

7.8G / var / log / nginx / custom 2.0G / var / log / nginx 2.0G / var / log

Answer 1

控制应用程序的生命周期Unix提供了一种称为Unix信号的机制。 USR1是自定义的，通常处理日志旋转，其他信号如HUP是标准的并执行重新加载。

http://nginx.org/en/docs/control.html

TERM, INT   fast shutdown
QUIT    graceful shutdown
HUP changing configuration, keeping up with a changed time zone (only for FreeBSD and Linux), starting new worker processes with a new configuration, graceful shutdown of old worker processes
USR1    re-opening log files
USR2    upgrading an executable file
WINCH   graceful shutdown of worker processes

在向PID发送信号之前，重命名该文件。重命名后，日志条目仍将进入同一文件，因为inode尚未更改。

cd /var/log/nginx
mv access.log access.log.old
mv error.log error.log.old
kill -USR1 `cat /var/run/nginx.pid`