rsync+innotify實現實時同步

Rsyncserver:IP:192.168.5.129 /rsync CentOS release 6.9nginx

Rsyncclient:IP:192.168.5.131 /rsync CentOS release 6.9 git

1、主服務器(server端,我這裏是nginx)github

其中主服務器須要安裝rsync與inotify,主服務器做爲server,向備份服務器client傳輸文件web

一、安裝rsyncshell

1. [root@centos-1 ~]# cd /usr/local/src/  vim

2.  [root@centos-1 src]# wget http://rsync.samba.org/ftp/rsync/src/rsync-3.0.9.tar.gz  centos

3. [root@centos-1 src]# tar zxvf rsync-3.0.9.tar.gz  安全

4. [root@centos-1 src]# cd rsync-3.0.9  bash

5. [root@centos-1 rsync-3.0.9]# ./configure --prefix=/usr/local/rsync  服務器

6. [root@centos-1 rsync-3.0.9]# make && make install

二、創建密碼認證文件

1. [root@centos-1 rsync-3.0.9]# cd /usr/local/rsync/  

2. [root@centos-1 rsync]# echo "redhat" >/usr/local/rsync/rsync.passwd   

其中rsync-pwd能夠本身設置密碼,rsync.passwd名字也能夠本身設置

1. [root@centos-1 rsync]# chmod 600 rsync.passwd

不管是爲了安全,仍是爲了不出現如下錯誤,密碼文件都須要給600權限

1. password file must not be other-accessible  

2. continuing without password file  

三、安裝inotify

1. [root@centos-1 rsync]# cd /usr/local/src/  

2. [root@centos-1 src]# wget http://cloud.github.com/downloads/rvoicilas/inotify-tools/inotify-tools-3.14.tar.gz  

3. [root@centos-1 src]# tar zxvf inotify-tools-3.14.tar.gz  

4. [root@centos-1 src]# cd inotify-tools-3.14  

5. [root@centos-1 inotify-tools-3.14]# ./configure --prefix=/usr/local/inotify  

6. [root@centos-1 inotify-tools-3.14]# make && make install 

四、建立rsync複製腳本

此項功能主要是將server端的目錄/rsync裏的內容,若是修改了(不管是添加、修改、刪除文件)可以經過inotify監控到,並經過rsync實時的同步給client的/rsync裏,下面是經過shell腳本實現的。

[root@centos-1 rsync]# vim rsync.sh

#!/bin/bash  

host=192.168.5.131

src=/rsync/        

des=web

user=root  

/usr/local/inotify/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 --delete --progress --password-file=/usr/local/rsync/rsync.passwd $src $user@$host::$des  

echo "${files} was rsynced" >>/tmp/rsync.log 2>&1  

done  

最好把日誌文件放在其餘目錄否則不常常提醒同步目錄。

其中host是client的ip,src是server端要實時監控的目錄,des是認證的模塊名,須要與client一致,user是創建密碼文件裏的認證用戶。

把這個腳本命名爲rsync.sh,放到監控的目錄裏,好比個人就放到/tmp下面,並給予764權限

[root@centos-1 tmp]# chmod 764 rsync.sh

而後運行這個腳本

[root@centos-1 tmp]# sh /tmp/rsync.sh &

請記住,只有在備份服務器client端的rsync安裝並啓動rsync以後,在啓動rsync.sh腳本,不然有時候會滿屏出現:

rsync: failed to connect to 192.168.10.221: Connection refused (111)  

rsync error: error in socket IO (code 10) at clientserver.c(107) [sender=2.6.8]  

咱們還能夠把rsync.sh腳本加入到開機啓動項裏

[root@centos-1 tmp]# echo "/tmp/rsync.sh" >> /etc/rc.local

2、備份服務器(client,我這裏爲nginx-backup)

一、安裝rsync(備份服務器只安裝rsync)

[root@centos-2 ~]# cd /usr/src/   

[root@centos-2 src]# wget  http://rsync.samba.org/ftp/rsync/src/rsync-3.0.9.tar.gz  

[root@centos-2 src]# tar zxvf rsync-3.0.9.tar.gz  

[root@centos-2 src]# cd rsync-3.0.9  

[root@centos-2 rsync-3.0.9]# ./configure --prefix=/usr/local/rsync  

[root@centos-2 rsync-3.0.9]# make  

[root@centos-2 rsync-3.0.9]# make install  

二、創建用戶與密碼認證文件

[root@centos-2 rsync-3.0.9]# echo "webuser:rsync-pwd" > /usr/local/rsync/rsync.passwd

請記住,在server端創建的密碼文件,只有密碼,沒有用戶名;而在備份服務端client裏創建的密碼文件,用戶名與密碼都有。

[root@centos-2 rsync]# chmod 600 rsync.passwd

須要給密碼文件600權限

三、創建rsync配置文件

uid = root

gid = root

use chroot = no

max connections = 10

strict modes = yes

pid file = /var/run/rsyncd.pid  

lock file = /var/run/rsync.lock  

log file = /var/log/rsyncd.log  

[web]  

path = /rsync/  

comment = web file  

ignore errors  

read only = no

write only = no

hosts allow = 192.168.5.129  

hosts deny = *  

list = false

uid = root

gid = root

auth users = root 

secrets file = /usr/local/rsync/rsync.passwd  

其中web是server服務端裏的認證模塊名稱,須要與主服務器裏的一致,以上的配置個人本身服務器裏的配置,以供參考。

把配置文件命名爲rsync.conf,放到/usr/local/rsync/目錄裏

啓動rsync

[root@centos-2 rsync]# /usr/local/rsync/bin/rsync --daemon --config=/usr/local/rsync/rsync.conf

也能夠安裝xintd來接管一類網絡服務在後臺啓動:接管了rsync

若是出現如下問題:

/usr/local/rsync/bin/rsync: error while loading shared libraries: libiconv.so.2: cannot open shared object file: No such file or directory,

能夠採用下面方法解決

[root@centos-2 rsync]# whereis libiconv.so.2  

libiconv.so: /usr/local/lib/libiconv.so.2 /usr/local/lib/libiconv.so  

找到所需模塊所在的目錄,而後把此目錄添加到/etc/ld.so.conf裏,並更新庫文件

[root@centos-2 rsync]# echo "/usr/local/lib/" >> /etc/ld.so.conf  

 [root@centos-2 rsync]# ldconfig  

咱們能夠把rsync腳本加入到開機啓動項裏

[root@centos-2 rsync]# echo "/usr/local/rsync/bin/rsync --daemon --config=/usr/local/rsync/rsync.conf" >> /etc/rc.local

如今rsync與inotify在server端安裝完成,rsync在備份服務器client端也安裝完成

測試:

一、如今服務端建立1.txt到4.txt文件看看client端是否同步更新:

[root@centos-1 rsync]# ls

rsync.sh

[root@centos-1 rsync]# touch {1..4}.txt

[root@centos-1 rsync]# sending incremental file list

./

1.txt

           0 100%    0.00kB/s    0:00:00 (xfer#1, to-check=4/6)

2.txt

           0 100%    0.00kB/s    0:00:00 (xfer#2, to-check=3/6)

3.txt

           0 100%    0.00kB/s    0:00:00 (xfer#3, to-check=2/6)

4.txt

           0 100%    0.00kB/s    0:00:00 (xfer#4, to-check=1/6)

 

sent 246 bytes  received 87 bytes  666.00 bytes/sec

total size is 397  speedup is 1.19

sending incremental file list

 

sent 99 bytes  received 8 bytes  71.33 bytes/sec

total size is 397  speedup is 3.71

sending incremental file list

 

sent 99 bytes  received 8 bytes  214.00 bytes/sec

total size is 397  speedup is 3.71

sending incremental file list

 

sent 99 bytes  received 8 bytes  214.00 bytes/sec

total size is 397  speedup is 3.71

sending incremental file list

 

sent 99 bytes  received 8 bytes  214.00 bytes/sec

total size is 397  speedup is 3.71

sending incremental file list

 

sent 99 bytes  received 8 bytes  214.00 bytes/sec

total size is 397  speedup is 3.71

sending incremental file list

 

sent 99 bytes  received 8 bytes  214.00 bytes/sec

total size is 397  speedup is 3.71

sending incremental file list

 

sent 99 bytes  received 8 bytes  214.00 bytes/sec

total size is 397  speedup is 3.71

[root@centos-2 rsync]# ls

1.txt  2.txt  3.txt  4.txt  rsync.sh

二、測試server刪除1.txt文件client是否會刪除同步/rsync目錄:

[root@centos-1 rsync]# rm -rf 1.txt

[root@centos-1 rsync]# sending incremental file list

./

deleting 1.txt

 

sent 88 bytes  received 11 bytes  198.00 bytes/sec

total size is 397  speedup is 4.01

[root@centos-2 rsync]# ls

2.txt  3.txt  4.txt  rsync.sh

三、在server端2.txt文件裏面寫入文件測試是否是會同步

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