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-3.1.1.tar.gz –C /opt/ mv /opt/rsync-3.1.1 /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 600 /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-3.1.1.tar.gz –C /opt tar xf inotify-tools-3.14.tar.gz –C /opt tar xf sersync2.5.4_64bit_binary_stable_final.tar.gz –C /opt cd /opt mv rsync-3.1.1 rsync mv inotify-tools-3.14 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 2>&1 & #######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 2>&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。