搭建文件同步服务：rsync+inotify

服务端安装与配置192.168.2.10

1. 安装rsync

[root@localhost ~]# yum -y install rsync

2. 建立密码认证文件,并且赋权限

[root@localhost ~]# cd /etc/
[root@localhost etc]# vi rsyncd.password
wbc@wodata
[root@localhost etc]# chmod 600 rsyncd.password

3 修改配置文件

[root@localhost ~]# cd /etc/
[root@localhost etc]# vi rsyncd.conf 
uid = root
gid = root
use chroot = no
max connections = 3
timeout = 800
pid file = /var/run/rsyncd.pid
lockfile = /var/run/rsyncd.lock
log file = /var/log/rsyncd.log

[uploads]
path = /home/wbc/webroot/ROOT/upload
ignore errors = yes
host allow = 192.168.0.0/255.255.0.0
#hosts deny = *
read only = no
write only = no
list = yes
auth users = wbc
secrets file = /etc/rsyncd.password

4. 安装inotify-tools，安装在etc下

需要有编译环境 yum install make gcc gcc-c++

[root@localhost ~]# cd /etc/
[root@localhost etc]# wget http://cloud.github.com/downloads/rvoicilas/inotify-tools/inotify-tools-3.14.tar.gz
[root@localhost etc]# tar zxvf inotify-tools-3.14.tar.gz 
[root@localhost etc]# rm -rf inotify-tools-3.14.tar.gz
[root@localhost ~]# cd /etc/inotify-tools-3.14/
[root@localhost inotify-tools-3.14]# ./configure --prefix=/etc/inotify
[root@localhost inotify-tools-3.14]# make
[root@localhost inotify-tools-3.14]# make install

5. 创建rsync复制脚本

将服务端的/home/wbc/webapps/ROOT/upload/同步到备份端的/home/wbc/webapps/ROOT/uploads/，进行冗余备份，不做删除同步

[root@localhost etc]# vi rs-upload.sh
#!/bin/bash

src='/home/wbc/webapps/ROOT/upload/'
passwordfile='/etc/rsyncd.password'
user='wbc'
host0='192.168.2.11'
rsync_module='uploads'

if [ ! -d "${src}" ]; then
    mkdir -p ${src}
fi

/etc/inotify/bin/inotifywait -mrq --timefmt '%Y%m%d %H%M%S' --format '%T %w %f' -e modify,delete,create,attrib ${src} | while read DATE TIME DIR file

do
    /usr/bin/rsync -vzrtopg --progress ${src} ${user}@${host0}::${rsync_module} --password-file=${passwordfile}

    echo "${file} was rsynced at ${DATE}_${TIME} in ${DIR}" >> /var/log/rsync-upload.log 2>&1
done

6. 后台执行脚本

[root@localhost etc]# sh rs-upload.sh &

如果有报错
inotifywait: error while loading shared libraries: libinotifytools.so.0: cannot open shared object file: No such file or directory

解决方法：
32位系统：ln -s /etc/inotify/lib/libinotifytools.so.0 /usr/lib/libinotifytools.so.0
64位系统：ln -s /etc/inotify/lib/libinotifytools.so.0 /usr/lib64/libinotifytools.so.0

备份端安装与配置192.168.2.11

1. 安装rsync

[root@localhost ~]# yum -y install rsync

2. 建立密码认证文件,并且赋权限

[root@localhost ~]# cd /etc/
[root@localhost etc]# vi rsyncd.password
wbc@wodata
[root@localhost etc]# chmod 600 rsyncd.password

3 修改配置文件

[root@localhost ~]# cd /etc/
[root@localhost etc]# vi rsyncd.conf 
uid = root
gid = root
use chroot = no
max connections = 3
timeout = 800
pid file = /var/run/rsyncd.pid
lockfile = /var/run/rsyncd.lock
log file = /var/log/rsyncd.log

[uploads]
path = /home/wbc/webapps/uploads
ignore errors = yes
host allow = 192.168.0.0/255.255.0.0
#hosts deny = *
read only = no
write only = no
list = yes
auth users = wbc
secrets file = /etc/rsyncd.password

4. 新增自定义服务文件

[root@localhost etc]# vi /init.d/rsync
#!/bin/sh
#whoami
#root
#chkconfig: 345 51 49
#description: starts the rsync deamons
#

case "$1" in
start)
echo "Starting Rsync ..."
rsync --daemon --config=/etc/rsyncd.conf
;;
stop)
echo "Stop Rsync ..."
pkill rsync > /dev/null 2>/dev/null
;;
restart)
echo "Restart Rsync ..."
$0 stop
$0 start
;;
*)
echo "Usage: $1 {start|stop|restart}"
;;
esac
exit 0

5. 启动服务

[root@localhost etc]# cd /init.d
[root@localhost etc]# vi rsync
#!/bin/sh
#whoami
#root
#chkconfig: 345 51 49
#description: starts the rsync deamons
#

case "$1" in
start)
echo "Starting Rsync ..."
rsync --daemon --config=/etc/rsyncd.conf
;;
stop)
echo "Stop Rsync ..."
pkill rsync > /dev/null 2>/dev/null
;;
restart)
echo "Restart Rsync ..."
$0 stop
$0 start
;;
*)
echo "Usage: $1 {start|stop|restart}"
;;
esac
exit 0

6. 为自定义服务赋权限

[root@localhost init.d]# chmod +x rsync 

7. 启动服务

[root@localhost init.d]# service rsync start

目前为止已经安装配置好了

1. 在服务端测试

[root@localhost upload]# mkdir test

正常情况会输出以下信息
[root@localhost upload]# sending incremental file list
./
test/

sent 107 bytes  received 19 bytes  252.00 bytes/sec
total size is 0  speedup is 0.00

2. 在备份端做检查

查看该目录下是否有test文件夹
[root@localhost ~]# ll /home/wbc/webapps/uploads

引文

linux系统中rsync+inotify实现服务器之间文件实时同步