rsync配合inotify实时同步服务器文件.
备份服务器配置
安装配置rsync
yum install rsync
mkdir /usr/local/rsync
echo "backup:bk_password" > /usr/local/rsync/rsyncd.passwd
cd /usr/local/rsync
chmod 600 rsyncd.passwd编辑rsync配置文件
vi /etc/rsyncd.conf内容为
uid = root
gid = root
use chroot = no
max connections = 4
strict modes = yes
hosts allow = 192.168.1.101 #可以多个，用空格分隔
port = 873
pid file = /var/run/rsyncd.pid
lock file = /var/run/rsync.lock
log file = /var/log/rsyncd.log
# web是模块名
[web]
path = /var/www
ignore errors
read only = false
list = false
auth users = backup
secrets file = /usr/local/rsync/rsyncd.passwd开启服务
systemctl start rsyncd
systemctl enable rsyncd主服务器配置
安装配置rsync
yum install rsync
mkdir /usr/local/rsync
echo "bk_password" > /usr/local/rsync/rsyncd.passwd
cd /usr/local/rsync
chmod 600 rsyncd.passwd编辑rsync配置文件
vi /etc/rsyncd.conf内容为
uid = root
gid = root
use chroot = no
max connections = 4
strict modes = yes
hosts allow = 192.168.1.102 #可以多个，用空格分隔
port = 873
pid file = /var/run/rsyncd.pid
lock file = /var/run/rsync.lock
log file = /var/log/rsyncd.log
# web是模块名，主服务器保留这一块是为了初始的同步。
[web]
path = /var/www
ignore errors
read only = false
list = false
auth users = backup
secrets file = /usr/local/rsync/rsyncd.passwd开启服务
systemctl start rsyncd
systemctl enable rsyncd同步一次文件
rsync -vzrtopg --delete --progress --password-file=/usr/local/rsync/rsyncd.passwd backup@192.168.1.102安装配置inofity
yum install inotify-tools
cd /usr/local/rsync
vi inotify_rsync.sh内容为
#!/bin/bash
host=192.168.1.102
src=/var/www/
des=web
user=backup
/usr/bin/inotifywait -mrq --timefmt '%d/%m/%y %H:%M' --format '%T %w%f%e' -e modify,delete,create,attrib $src | while read files
do
/usr/bin/rsync -vzrtopg --progress --delete --password-file=/usr/local/rsync/rsyncd.passwd $src $user@$host::$des
echo "${files} was rsynced" >>/var/log/rsync.log 2>&1
done其中 host为备份服务器，src为要同步的目录，des为模块名，user为同步所使用的用户。
/usr/bin/rsync的参数中 --delete为删除，意指当主服务器删除文件时，备份服务器也跟着删除，没有这个参数时不会删除。
最后，开启inotify的实时同步
chmod 764 inotify_rsync.sh
# 可加到/etc/rc.d/rc.local开机自启
sh /usr/local/rsync/inotify_rsync.sh & 先启动主备上的rsyncd，再启动实时同步脚本。如果有多个目录需要同步，可配置多个模块和sh文件。