一、环境描述
需求：服务器A与服务器B为主备服务模式，需要保持文件一致性，现采用sersync基于rsync+inotify实现数据实时同步
主服务器A：192.168.1.23
从服务器B：192.168.1.243
实时同步/var/atlassian目录到从服务器。
二、实施
1.从服务器192.168.1.243 rsync服务搭建
1.1安装软件包
wget http://rsync.samba.org/ftp/rsync/src/rsync-3.1.1.tar.gz
tar xf rsync-3.1..tar.gz –C /opt/
mv /opt/rsync-3.1. /opt/rsync
cd /opt/rsync
./configure
make && make install
创建rsyncd.conf文件
vi /etc/rsyncd.conf
vim /etc/rsyncd.conf
#以root用户运行rsync服务
uid = root
#以root用户运行rsync服务
gid = root
#增加对目录文件软连接的备份
use chroot = no
#最大连接数
max connections = 1200
#超时时间
timeout = 800
#PID存放位置
pid file = /var/run/rsyncd.pid
#锁文件存放位置
lockfile = /var/run/rsyncd.lock
#日志存放位置
log file = /var/log/rsyncd.log
#认证模块名
[atlassian]
path = /var/atlassian
ignore errors = yes
hosts allow = 192.168.1.23
hosts deny = *
read only = no
write only = no
list = yes
#主服务器的同步用户
auth users = ihome
secrets file = /etc/rsync.pass
注：/etc/rsync.pass 文件格式为username:password
文件权限必须为600否则服务不正常
hosts allow 定义可为单独IP也可为网段，网段格式为172.26.7.0/24
也可为172.26.7.0/255.255.255.0
创建rsync.pass文件
echo “root:password”>>/etc/rsync.pass
chmod /etc/rsync.pass
1.3启动服务
[root@ha-db atlassian]#rsync --daemon –v
开机自启动
[root@ha-db atlassian]#echo "rsync --daemon –v">>/etc/rc.local
2.主服务器192.168.1.23配置
2.1软件安装
下载
wget http://rsync.samba.org/ftp/rsync/src/rsync-3.1.1.tar.gz
wget http://github.com/downloads/rvoicilas/inotify-tools/inotify-tools-3.14.tar.gz
wget https://sersync.googlecode.com/files/sersync2.5.4_64bit_binary_stable_final.tar.gz 解压
tar xf rsync-3.1..tar.gz –C /opt
tar xf inotify-tools-3.14.tar.gz –C /opt
tar xf sersync2..4_64bit_binary_stable_final.tar.gz –C /opt cd /opt
mv rsync-3.1. rsync
mv inotify-tools-.14 inotify-tools
mv GNU-Linux-x86 sersync 编译安装rsync
cd rsync
./configure && make && make install
编译安装inotify-tools
cd inotify-tools
./configure && make && make install
2.3 sersync服务配置
vim /opt/sersync/confxml.xml
<?xml version="1.0" encoding="ISO-8859-1"?>
<head version="2.5">
<host hostip="localhost" port="8008"></host>
<debug start="false"/>
<fileSystem xfs="false"/>
<filter start="false">
<exclude expression="(.*)\.svn"></exclude>
<exclude expression="(.*)\.gz"></exclude>
<exclude expression="^info/*"></exclude>
<exclude expression="^static/*"></exclude>
</filter>
<inotify>
<delete start="true"/>
<createFolder start="true"/>
<createFile start="false"/>
<closeWrite start="true"/>
<moveFrom start="true"/>
<moveTo start="true"/>
<attrib start="false"/>
<modify start="false"/>
</inotify> <sersync>
<localpath watch="/var/atlassian">
<remote ip="192.168.1.243" name="atlassian"/>
<!--<remote ip="192.168.8.39" name="tongbu"/>-->
<!--<remote ip="192.168.8.40" name="tongbu"/>-->
</localpath>
<rsync>
<commonParams params="-artuzlpog"/>
<auth start="true" users="ihome" passwordfile="/opt/sersync/user.pass"/>
<userDefinedPort start="false" port="874"/><!-- port=874 -->
<timeout start="false" time="100"/><!-- timeout=100 -->
<ssh start="false"/>
</rsync>
<failLog path="/tmp/rsync_fail_log.sh" timeToExecute="60"/><!--default every 60mins execute once-->
<crontab start="false" schedule="600"><!--600mins-->
<crontabfilter start="false">
<exclude expression="*.php"></exclude>
<exclude expression="info/*"></exclude>
</crontabfilter>
</crontab>
<plugin start="false" name="command"/>
</sersync> <plugin name="command">
<param prefix="/bin/sh" suffix="" ignoreError="true"/> <!--prefix /opt/tongbu/mmm.sh suffix-->
<filter start="false">
<include expression="(.*)\.php"/>
<include expression="(.*)\.sh"/>
</filter>
</plugin> <plugin name="socket">
<localpath watch="/var/atlassian">
<deshost ip="192.168.1.243" port="8009"/>
</localpath>
</plugin>
<plugin name="refreshCDN">
<localpath watch="/data0/htdocs/cms.xoyo.com/site/">
<cdninfo domainname="ccms.chinacache.com" port="80" username="xxxx" passwd="xxxx"/>
<sendurl base="http://pic.xoyo.com/cms"/>
<regexurl regex="false" match="cms.xoyo.com/site([/a-zA-Z0-9]*).xoyo.com/images"/>
</localpath>
</plugin>
</head>
配置密码文件
echo “password”>>/opt/sersync/user.pass
注：文件权限必须为600否则启动异常
2.4服务启动
nohup /opt/sersync/sersync2 -r -d -o /opt/sersync/confxml.xml >/opt/sersync/rsync.log >& &
#######如果是多个目录同步需要启动两个进程
nohup /opt/sersync/sersync2 -r -d -o /opt/sersync/downxml.xml >/opt/sersync/downrsync.log >&1
-d:启用守护进程模式
-r:在监控前，将监控目录与远程主机用rsync命令推送一遍
-n:指定开启守护线程的数量，默认为10个
-o:指定配置文件，默认使用confxml.xml文件
开机启动
echo "nohup /opt/sersync/sersync2 -r -d -o/opt/sersync/confxml.xml >/opt/sersync/rsync.log 2>&1 & ">>/etc/rc.local
三、验证
在主服务器上的/var/atlassian目录下创建文件查看从服务器192.168.1.243上是否有同步。