安装依赖

yum install -y autoconf automake libtool make gcc gcc-c++ make

客户端解压，编译，安装

tar xf inotify-tools-3.14.tar.gz
cd inotify-tools-3.14
./autogen.sh
./configure --prefix=/home/apps/inotify-tools
make
make install

inotifywait: 仅执行阻塞，等待inotify事件

inotifywatch: 收集关于被监视文件系统的统计数据

两台主机都安装rsync

yum install -y rsync

服务端编辑rsync配置文件 /etc/rsyncd.conf

uid = root
gid = root
usechroot = no
max connections = 20
timeout = 600
pid file = /var/run/rsyncd.pid
lock file = /var/run/rsync.lock
log file = /var/log/rsyncd.log

[testpath]
path = /home/testpath
ignore errors
read only = false
writeonly = false
list = false
hosts allow = 192.168.137.8
auth users = backuser
secrets file = /etc/rsync.pass

编辑用户文件 /etc/rsync.pass，编辑完成后修改权限：chmod 600 /etc/rsync.pass

backuser:123

客户端编辑 /etc/rsync.pass，编辑完成后修改权限：chmod 600 /etc/rsync.pass

123

客户端测试rsync传输

rsync -a --progress /home/tmp/* backuser@192.168.137.7::testpath --password-file=/etc/rsync.pass

编辑inotify.sh脚本

#!/bin/bash

避免空变量

set -u

待同步目录

src=/home/testpath

监听修改、删除、添加、改属性事件

/home/apps/inotify-tools/bin/inotifywait -mrq --timefmt '%d/%m/%y %H:%M' --format '%T %w%f' -emodify,delete,create,attrib $src | while read file
do
rsync -zrtopg --progress $src/* backuser@192.168.137.7::testpath --password-file=/etc/rsync.pass
echo "$(date) rsync event occur" >> /home/scripts/inotify.log 2>&1
done

赋予可执行权限并运行。

chmod +x inotify.sh
./inotify.sh &

测试两台服务器之间是否能实时同步