rsync+inotify实时数据同步多目录实战
inotify配置是建立在rsync服务基础上的配置过程
操作系统
| 主机名 | 网卡eth0 | 默认网关 | 用途 |
| root@58server1 | 192.168.1.111 | 192.168.1.1 | Rsync服务端 |
| root@58client | 192.168.1.121 | 192.168.1.1 | Rsync 节点 |
子网掩码均为255.255.255.0
具体需求：
要求在58server1上以rsync守护进程的方式部署rsync服务，使得root@58client的 rsync节点客户端主机把/data/数据目录和/data0/www目录中的数据同步到58server1 rsync服务端中
一、在配置inotify前己经把root@58server1 Rsync服务端的rsync服务部置好
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[root@58server1 ~]# cat /etc/rsyncd.conf
#Rsync server
#created by oldboy 15:01 2009-6-5
##rsyncd.conf start##
uid = root
gid = root
use chroot = no
max connections = 2000
timeout = 600
pid file = /var/run/rsyncd.pid
lock file = /var/run/rsync.lock
log file = /var/log/rsyncd.log
ignore errors
read only = false
list = false
hosts allow = 192.168.1.1/24
hosts deny = 0.0.0.0/32
auth users = rsync_backup
secrets file = /etc/rsync.password
#####################################
[www]
comment = www by old0boy 14:18 2012-1-13
path = /data0/www/
#####################################
[data]
comment = bbs by old0boy 14:18 2012-1-13
path = /data/
#####################################
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二、开始安装
在安装inotify-tools前请先确认你的linux内核是否达到了2.6.13，并且在编译时开启CONFIG_INOTIFY选项，
1） 查看当前系统是否支持inotify
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[root@58client ~]# uname -r
2.6.18-308.el5
[root@58client ~]# ls -l /proc/sys/fs/inotify/
total 0
-rw-r--r-- 1 root root 0 May 4 22:33 max_queued_events
-rw-r--r-- 1 root root 0 May 4 22:33 max_user_instances
-rw-r--r-- 1 root root 0 May 4 22:33 max_user_watches
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#显示这三个文件则证明支持
2）下载inotify源码包
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[root@58client ~]# mkdir /home/Mr.Xing/tools/ -p
[root@58client ~]# cd /home/Mr.Xing/tools/
[root@58client tools]# wget http://github.com/downloads/rvoicilas/inotify-tools/inotify-tools-3.14.tar.gz
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3）编译安装inotfiy
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[root@58client tools]# ls
inotify-tools-3.14.tar.gz
[root@58client tools]# tar zxf inotify-tools-3.14.tar.gz
[root@58client tools]# cd inotify-tools-3.14
[root@58client inotify-tools-3.14]# ./configure --prefix=/usr/local/inotify-tools-3.14
[root@58client inotify-tools-3.14]# make
[root@58client inotify-tools-3.14]# make install
[root@58client inotify-tools-3.14]# cd ..
[root@58client tools]# ln -s /usr/local/inotify-tools-3.14/ /usr/local/inotfiy
[root@58client tools]# ls -l /usr/local/|grep inotify
lrwxrwxrwx 1 root root 30 May 4 22:42 inotfiy -> /usr/local/inotify-tools-3.14/
drwxr-xr-x 6 root root 4096 May 4 22:41 inotify-tools-3.14
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参数：
--prefix=PATH 指定编译安装的路径
提示：更多的编译参数可以使用./configure –h 查看，编译成功后会生成4个目录，
小软件一般规范安装到同一个目录，一般为/usr/local中
建立一个软链接
进入安装inotify的目录
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[root@58client tools]# ls -l /usr/local/inotify-tools-3.14/
total 16
drwxr-xr-x 2 root root 4096 May 4 22:41 bin #inotfiy执行命令(二进制)
drwxr-xr-x 3 root root 4096 May 4 22:41 include #inotfiy程序所需用的头文件
drwxr-xr-x 2 root root 4096 May 4 22:41 lib #动态链接的库文件
drwxr-xr-x 4 root root 4096 May 4 22:41 share #帮助文件
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4） 编写inotify实时监控脚本 编写两个脚本，分别对应所共享的两个目录
如本例子，我们编写两个脚本分别为 data_inotify.sh 和www_inotify.sh
开始编写inotify脚本
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[root@58client inotify]# mkdir /server/scripts/ -p
[root@58client inotify]# cd /server/scripts/
[root@58client scripts]# vi data_ inotify.sh
[root@58client scripts]# cat data_inotify.sh
#!/bin/bash
#para
host01=192.168.1.111
src=/data
dst=data
user=rsync_backup
rsync_passfile=/etc/rsync.password
inotify_home=/usr/local/inotify-tools-3.14/
#judge
if [ ! -e "$src" ]
|| [ ! -e "${rsync_passfile}" ]
|| [ ! -e "${inotify_home}/bin/inotifywait" ]
|| [ ! -e "/usr/bin/rsync" ];
then
echo "Check File and Folder"
exit 9
fi
${inotify_home}/bin/inotifywait -mrq --timefmt '%d/%m/%y %H:%M' --format '%T %w%f' -e close_write,delete,create,attrib $src
| while read file
do
# rsync -avzP --delete --timeout=100 --password-file=${rsync_passfile} $src $user@$host01::$dst >/dev/null 2>&1
cd $src && rsync -aruz -R --delete ./ --timeout=100 $user@$host01::$dst --password-file=${rsync_passfile} >/dev/null 2>&1
done
exit 0
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[root@58client scripts]# vi www_ inotify.sh
[root@58client scripts]# cat www_inotify.sh
#!/bin/bash
#para
host01=192.168.1.111
src= /data0/www
dst=www
user=rsync_backup
rsync_passfile=/etc/rsync.password
inotify_home=/usr/local/inotify-tools-3.14/
#judge
if [ ! -e "$src" ]
|| [ ! -e "${rsync_passfile}" ]
|| [ ! -e "${inotify_home}/bin/inotifywait" ]
|| [ ! -e "/usr/bin/rsync" ];
then
echo "Check File and Folder"
exit 9
fi
${inotify_home}/bin/inotifywait -mrq --timefmt '%d/%m/%y %H:%M' --format '%T %w%f' -e close_write,delete,create,attrib $src
| while read file
do
# rsync -avzP --delete --timeout=100 --password-file=${rsync_passfile} $src $user@$host01::$dst >/dev/null 2>&1
cd $src && rsync -aruz -R --delete ./ --timeout=100 $user@$host01::$dst --password-file=${rsync_passfile} >/dev/null 2>&1
done
exit 0
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一般添加了脚本后要格式化一次脚本
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[root@58client scripts]# dos2unix www_inotify.sh
dos2unix: converting file www_inotify.sh to UNIX format ...
[root@58client scripts]# dos2unix data_inotify.sh
dos2unix: converting file data_inotify.sh to UNIX format ..
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分别运行两个脚本:
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[root@58client scripts]# sh www_inotify.sh &
[1] 3114
[root@58client scripts]# sh data_inotify.sh &
[2] 3118
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测试：
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[root@58client ~]# touch /data/aa
[root@58client ~]# ls /data
aa
[root@58client ~]# touch /data0/www/aa
[root@58client ~]# ls /data0/www/
aa bbs blog www
[root@58server1 data]# ls /data/
aa
[root@58server1 data]# ls /data0/www/
aa bbs blog www
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