rsync+sersync+nfs高可用

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环境:


HOSTIPOS
主机110001110.0.0.11CentOS6.6
主机210001210.0.0.12CentOS6.6

为了省事,直接关闭iptables,selinux,以下配置都为10.0.0.11上的配置,10.0.0.12也要做相同配置(个别地方须修改,如ip等)


一、安装配置rsync

 1、安装

[[email protected] /]#  yum install -y rsync xinetd

[[email protected] /]#  service xinetd start&&chkconfig xinetd onfont

 2、创建配置文件

[[email protected] /]# mkdir /var/log/rsyncd  ##存放日志文件

[[email protected] /]# vi /etc/rsyncd.conf

   

  ######内容######

       uid=root

       gid=root

       use chroot=no

       max connections=10

       strict modes=yes

       port=873

       address=10.0.0.11  ##本地要监听的IP地址

       [data]         ##数据同步模块名,可自定义名字

       path=/nfs-storage

       comment=nfs mirror

       ignore errors

       read only=no

       list=no

       secrets file=/etc/rsync.pas

       hosts allow=*

       pid file=/var/run/rsyncd.pid

       lock file=/var/run/rsync.lock

       log file=/var/log/rsyncd/rsyncd.log   

               

3、配置认证文件

 [[email protected] /]#  echo "abcd,.1234">/etc/rsync.pas

 [[email protected] /]#  chmod 600 /etc/rsync.pas

               rsync配置结束,不要添加开机启动,通过keepalived启动



二、安装配置sersync 

  1、下载安装

wget http://sersync.googlecode.com/files/sersync2.5.4_64bit_binary_stable_final.tar.gz

wget https://storage.googleapis.com/google-code-archive-downloads/v2/code.google.com/sersync/sersync2.5.4_64bit_binary_stable_final.tar.gz

[[email protected] ~]#tar -zxvf sersync2.5.4_64bit_binary_stable_final.tar.gz

    cd GNU-lINUX-x86/

    mkdir /usr/local/sersync

    mkdir /usr/local/sersync/conf

    mkdir /usr/local/sersync/bin

    mkdir /usr/local/sersync/log

    cp confxml.xml /usr/local/sersync/conf

    cp sersync2 /usr/local/sersync/bin/ 

   ln -s /usr/local/sersync/bin/sersync2 /usr/bin/sersync2

  2、配置

    vi /usr/local/sersync/conf/confxml.xml 

        红色标注为我个人添加或修改部份

<?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="true">

        <exclude expression="^(.*)/Runtime/*"></exclude> 这是缓存目录,忽略掉,不监控

        <exclude expression="^\.(.*)"></exclude>     

        <exclude expression="(.*)\.tmp"></exclude>

        <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="false"/>

        <moveTo start="false"/>

        <attrib start="false"/>

        <modify start="false"/>

    </inotify>


    <sersync>

        <localpath watch="/nfs-storage">   本地监控目录

            <remote ip="10.0.0.12" name="data"/>  对端ip及rsync里面数据同步模块名

            <!--<remote ip="192.168.8.39" name="tongbu"/>-->

            <!--<remote ip="192.168.8.40" name="tongbu"/>-->

        </localpath>

        <rsync>

            <commonParams params="-artuz"/>

            <auth start="false" users="root" passwordfile="/etc/rsync.pas"/>

            <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="5"/><!--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="/opt/tongbu">

            <deshost ip="192.168.138.20" 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>

                 sersync配置结束,不要添加开机启动 ,通过keepalived启动  



三、安装本置keepalived

  1、安装

[[email protected] /]#  yum install -y keepalived

  2、配置

   

[[email protected] /]# cat /etc/keepalived/keepalived.conf 

! Configuration File for keepalived


global_defs {

   notification_email {

     [email protected]

     [email protected]

     [email protected]

   }

   notification_email_from [email protected]

   smtp_server 192.168.200.1

   smtp_connect_timeout 30

   router_id 100011   不能重复,我用的ip地址作为标识

}


vrrp_instance VI_1 {

    state BACKUP     两台都配置BACKUP

    interface eth0

    virtual_router_id 248   同一vrrp组要一样,我用的vip

   # use_vmac uvmac   开始想整vmac没成功

   # vmac_xmit_base

    priority 100   另一台上配置小于100

    advert_int 1

    nopreempt     另一台不需要   

    authentication {

        auth_type PASS

        auth_pass 1111

    }

    virtual_ipaddress {

        10.0.0.248/24

    }

   notify_master /usr/local/sersync/tomaster.sh

   notify_backup /usr/local/sersync/tobackup.sh

}

}

四、安装配置nfs

 1、服务器端,100012也要做相同配置

[[email protected] /]#yum install -y nfs-utils rpcbind

[[email protected] /]#vi /etc/exports

/nfs-storage/webdata    10.0.0.0/24(rw,no_root_squash) 

[[email protected] /]service rpcbind start&&service nfs start

[[email protected] /]chkconfig nfs on&&chkconfig rpcbind on

[[email protected] /]#exportfs

/nfs-storage/webdata

                10.0.0.0/24

 2、客户端通过autofs挂载

[[email protected] /]vi /etc/auto.nfs  假定100010为其中一台apache服务器

webdata  -rw,bg,soft,udp,rsize=524288,wsize=524288 10.0.0.248:/nfs-storage/webdata

[[email protected] /]vi /etc/auto.master

#

# Sample auto.master file

# This is a ‘master‘ automounter map and it has the following format:

# mount-point [map-type[,format]:]map [options]

# For details of the format look at auto.master(5).

#

/misc   /etc/auto.misc

#

# NOTE: mounts done from a hosts map will be mounted with the

#       "nosuid" and "nodev" options unless the "suid" and "dev"

#       options are explicitly given.

#

/net    -hosts

#

# Include central master map if it can be found using

# nsswitch sources.

#

# Note that if there are entries for /net or /misc (as

# above) in the included master map any keys that are the

# same will not be seen as the first read key seen takes

# precedence.

#

+auto.master

/mydata /etc/auto.nfs --timeout=20   新加内容

service autofs restart

在/mydata下执行ls 发现为空,因通过autofs自动挂载配置,要有访问才会挂载,如执行cd webdata 便可发现挂载成功。上同的配置--timeout=20是说20秒空闲,就umount. 

后记:过上一段时间,发现rsync的日志较大,通过logrotate分割rsync的日志,具体怎样使用,百度!!!

[[email protected] /]#vi /etc/logrotate.d/rsyncd

/var/log/rsyncd/rsyncd.log {

notifempty

daily

rotate 7

}

部署过多次后后,我咋觉得要把这简单的事描述清楚,咋就这么困难呢,唉,语文没学好技术分享,。我的疑惑:比如挂载的时候通过udp(默认是tcp,我把它改成udp和把vmac固定,是为了看服务器端故障转移,看是不是要快些)。

重要东东在附件。checktb是根据官方脚本简单修改的,另也尝试rsync+sersync双向同步,但发现有点问题。(有兴趣自行测试吧)

脚本执行

[[email protected] /]crontab -e

* * * * * /usr/local/sersync/checktb.sh

* * * * * sleep 10; /usr/local/sersync/checktb.sh

* * * * * sleep 20; /usr/local/sersync/checktb.sh

* * * * * sleep 30; /usr/local/sersync/checktb.sh

* * * * * sleep 40; /usr/local/sersync/checktb.sh

* * * * * sleep 50; /usr/local/sersync/checktb.sh




第一次写,由于我是菜鸟,简单的都还不懂,跟别说深层次的。肯定有疏漏不当之处,欢迎拍砖,拍了后但也请指正。

本文出自 “铠哥” 博客,请务必保留此出处http://kaixulucky.blog.51cto.com/1585007/1758017

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