添加库后一直扫描卡在90%，查看日志发现是：
The configured user limit (8192) on the number of inotify watches has been reached, or the operating system failed to allocate a required resource.
查看系统用户的限制数量：
cat /proc/sys/fs/inotify/max_user_watches
默认8192
加大此值
echo 32768 > /proc/sys/fs/inotify/max_user_watches