在主备机器上均安装rsync，在主机上以daemon的模式启动，在备机上定时执行同步命令。安装rsync的命令如下：

1、下载安装包（主备机均执行）

[root@localhost home]# wget http://rsync.samba.org/ftp/rsync/src/rsync-3.0.4.tar.gz--2017-09-30 02:11:14--  http://rsync.samba.org/ftp/rsync/src/rsync-3.0.4.tar.gzResolving rsync.samba.org (rsync.samba.org)... 144.76.82.156, 2a01:4f8:192:486::443:2Connecting to rsync.samba.org (rsync.samba.org)|144.76.82.156|:80... connected.HTTP request sent, awaiting response... 200 OKLength: 773083 (755K) [application/gzip]Saving to: ‘rsync-3.0.4.tar.gz’ 100%[====================================================================================================================================================================================================================================>] 773,083      434KB/s   in 1.7s   2017-09-30 02:11:18 (434 KB/s) - ‘rsync-3.0.4.tar.gz’ saved [773083/773083]

2、编译安装（主备机均执行）

[root@localhost home]# tar -xvzf rsync-3.0.4.tar.gz[root@localhost home]# cd rsync-3.0.4[root@localhost rsync-3.0.4]# ./configure --prefix=/usr/local/rsync[root@localhost rsync-3.0.4]# make && make install

3、配置（主机执行）

[root@localhost rsync-3.0.4]# mkdir /usr/local/rsync/logs[root@localhost rsync-3.0.4]# mkdir /usr/local/rsync/etc[root@localhost rsync-3.0.4]# mkdir /usr/local/rsync/run[root@localhost rsync-3.0.4]# vim  /usr/local/rsync/etc/rsyncd.conf[root@localhost rsync-3.0.4]# cat  /usr/local/rsync/etc/rsyncd.conf  uid = rootgid = rootport = 873use chroot = nohosts allow = 10.0.251.159   #允许连接的主机IP，在我们的环境中，该IP为备机IP#hosts deny =  192.168.10.0/24pid file = /usr/local/rsync/run/rsyncd.pidlock file = /usr/local/rsync/run/rsync.locklog file = /usr/local/rsync/logs/rsyncd.logignore errors #配置待同步的目录，以及同步时所需的认证信息[mysql_dump]path = /home/data/mysqldumpdata/auth users = rootsecrets file = /usr/local/rsync/rsyncd.passread only = no [fdfs_data]path = /home/log_data/fdfsauth users = rootsecrets file = /usr/local/rsync/rsyncd.passread only = no [root@localhost rsync-3.0.4]# vim /usr/local/rsync/rsyncd.passroot:密码  [root@localhost rsync-3.0.4]# chmod 600 /usr/local/rsync/rsyncd.pass

主机上以daemon的形式启动rsync server，命令如下（主机执行）：

[root@localhost rsync-3.0.4]# /usr/bin/rsync --daemon --config=/usr/local/rsync/etc/rsyncd.conf &[1] 108633

在备机上手动执行同步命令，测试是否能够将主机的数据同步到备机之上（备机执行）：

[root@host-10-0-251-159 ltp_bak_data]# /usr/bin/rsync -avz --delete --password-file=/usr/local/rsync/rsyncd.pass  root@192.168.32.3::mysql_dump /home/ltp_bak_data/mysql_dump/receiving incremental file list./dump.shscriptstranslation-2017-09-24.sqlscriptstranslation-2017-09-25.sqlscriptstranslation-2017-09-26.sqlscriptstranslation-2017-09-27.sqlscriptstranslation-2017-09-28.sqlscriptstranslation-2017-09-29.sqlscriptstranslation-2017-09-30.sql sent 215 bytes  received 6951802 bytes  2780806.80 bytes/sectotal size is 41810363  speedup is 6.01[root@host-10-0-251-159 ltp_bak_data]# /usr/bin/rsync -avz --delete --password-file=/usr/local/rsync/rsyncd.pass  root@192.168.32.3::fdfs_data /home/ltp_bak_data/fdfs_data/

在备机上，将同步命令加到cron表达式中，设置为每十分钟执行一次（备机执行）

[root@host-10-0-251-159 ltp_bak_data]# crontab -l*/10 * * * * /usr/bin/rsync -avz --delete --password-file=/usr/local/rsync/rsyncd.pass  root@192.168.32.3::mysql_dump /home/ltp_bak_data/mysql_dump/*/10 * * * * /usr/bin/rsync -avz --delete --password-file=/usr/local/rsync/rsyncd.pass  root@192.168.32.3::fdfs_data /home/ltp_bak_data/fdfs_data/

 

 

附，数据库每日备份，并清理七天前数据脚本

[root@localhost ~]# vi /home/data/mysqldumpdata/dump.sh#!/bin/bash #dump sql data from databasehostIP=$1/usr/bin/mkdir -p /home/data/mysqldumpdatadataStr=`/usr/bin/date +%Y-%m-%d`destFile="/home/data/mysqldumpdata/scriptstranslation-"${dataStr}".sql"/usr/bin/mysqldump -u root -p123456 -h $hostIP scriptsTranslation > $destFile #clear seven days age dump datasevenDayAgoStr=`date -d '7 day ago' +%Y-%m-%d`destRmFile="/home/data/mysqldumpdata/scriptstranslation-"${sevenDayAgoStr}".sql"/usr/bin/rm -rf $destRmFile[root@localhost ~]# crontab -l1 0 * * * /home/data/mysqldumpdata/dump.sh 192.168.*.*     #此处要配置服务器IP