Rsync+Inotify实现文件分发

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Linux内核从2.6.13开始支持inotify。
Inotify可以监控文件系统的读取，修改，创建等状态。（更多信息请参考网上资料）

通过Rsync+Inotify（inotifywati）可以实现文件的批量分发功能。


1 查看linux是否支持inotify
    a) 内核至少是2.6.13
        uname -r

    b) 存在/usr/include/sys/inotify.h，说明支持
    c) 查看/proc/sys/fs/inotify/
        total 0
        -rw-r--r-- 1 root root 0 Jul 17 10:28max_queued_events
        -rw-r--r-- 1 root root 0 Jul 17 10:28max_user_instances
        -rw-r--r-- 1 root root 0 Jul 17 10:28max_user_watches
        有以上3个文件说明支持


2 下载inotify-tools-3.13.tar并安装
    tar zxvf inotify-tools-3.13.tar.gz
    cd inotify-tools-3.13
    ./configure
    make&&make install

    安装完成后会在/usr/local/bin/下生成2个文件：
    ls -l /usr/local/bin/inotify*
    -rwxr-xr-x 1 root root 38582 Jul 17 10:37/usr/local/bin/inotifywait
    -rwxr-xr-x 1 root root 40353 Jul 17 10:37/usr/local/bin/inotifywatch

3 分发服务器server脚本
#!/bin/bash
Host01=ob_web01
HOst02=ob_web02

Src=/data/
Dst01=www01/
Dst02=www02/

User01=tom
User02=tom

/usr/local/bin/inotifywait -mrq -ecreate,modify,delete,attrib $Src |\
while read file
do
rsync -az $Src $User01@$Host01::$Dst01--password-file=/etc/rsync.password
rsync -az $Src $User02@$Host02::$Dst02--password-file=/etc/rsync.password
done

4 web01/02服务器将rsync配置rsync-daemon模式

5 web01/02服务器rsyncd.conf配置文件
################web01###################
uid = rsync
gid = rsync
max connections = 6
timeout = 300
pid file = /var/run/rsync.pid
lock file = /var/run/rsync.lock
log file = /var/log/rsync.log
ignore errors
read only = false
hosts allow = 192.168.1.0/24
list = false
auth users = tom
secrets file /etc/rsync.password

[www01]
path = /www01
comment = web site
auth users = tom
secrets file = /etc/rsync.password

################web02###################

uid = rsync

gid = rsync

max connections = 6

timeout = 300

pid file = /var/run/rsync.pid

lock file = /var/run/rsync.lock

log file = /var/log/rsync.log

ignore errors

read only = false

hosts allow = 192.168.1.0/24

list = false

auth users = tom

secrets file /etc/rsync.password

[www02]

path = /www02

comment = web site

auth users = tom

secrets file = /etc/rsync.password