inotify报错Failed to watch /opt; /proc/sys/fs/inotify/max_user_watches，K哥

2016.11.8

K哥有2台服务器使用了unison+inotify达到网站文件夹时时同步的效果

今天突然发现inotify占用很大CPU，可以用top命令查看

打开inotify日志查看原因

发现这一报错

Failed to watch /opt; upper limit on inotify watches reached!
Please increase the amount of inotify watches allowed per user via `/proc/sys/fs/inotify/max_user_watches‘.

大意：inotify默认监控同步文件的个数是有限制的，8192，通过配置文件/proc/sys/fs/inotify/max_user_watches可以调整监控的个数

我这问题明显就是文件增多，导致无法监控更多的文件

cat一下这个文件，默认值是8192，

echo 8192000 >> /proc/sys/fs/inotify/max_user_watches即可~

最后，有一个小提示，2台服务器的话，这个设置不要一样

最好是一个大一些另一个小些比如8200000

如果设置为一样，很可能会导致2台服务器CPU同时升高，导致业务终端，K哥

时间： 2024-10-10 15:24:28

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