集群部署文件同步方案

于由Kael Wang发布

集群部署文件同步方案（三选一）

一、rsync+lsyncd文件同步

  1. 网站文件同步路径 web1：192.168.1.1  dir=/opt/www web2：192.168.1.2 dir=/opt/www
  2. rsync配置web1：
    log file = /data/rsync/logs/sync/rsyncd.log
pid file = /data/rsync/logs/sync/rsyncd.pid
lock file = /var/run/rsync.lock
use chroot = yes
[www]
path = /opt/www
hosts allow = 192.168.1.2
uid = www
gid = www
read only = false

    web2:

    log file = /data/rsync/logs/sync/rsyncd.log
pid file = /data/rsync/logs/sync/rrsyncd.pid
lock file = /var/run/rsync.lock
use chroot = yes
[www]
path = /opt/www
hosts allow = 192.168.1.1
uid = www
gid = www
read only = false
  3. lsync配置web1:
    settings = {
                logfile = "/data/rsync/logs/sync/lsyncd.log",
                statusFile = "/data/rsync/logs/sync/lsyncd.stat",
               statusInterval =1,
        }
sync{
                default.rsync,
                source="/data/www",
                target="192.168.1.2::wwroot/",
                excludeFrom = "/etc/lsyncd.exclude",
                init=false,
        rsync     = {
                binary = "/usr/bin/rsync",
                archive = true,
                compress = true,
                verbose   = true
                }
}
        web2：
settings = {
                logfile = "/data/rsync/logs/sync/lsyncd.log",
                statusFile = "/data/rsync/logs/sync/lsyncd.stat",
                statusInterval =1,
        }
sync{
                default.rsync,
                source="/data/www",
                target="192.168.1.1::www/",
                excludeFrom = "/etc/lsyncd.exclude",
                init=false,
        rsync     = {
                binary = "/usr/bin/rsync",
                archive = true,
                compress = true,
                verbose   = true
                }
}
  4. 重启服务：
    $ service xinetd restart
$ service lsyncd restart
  5. 测试：
    $ rsync -v rsync://192.168.1.1

二、nfs文件共享方案

  1. 安装nfs服务 并启用
    $ yum -y install nfs-utils rpcbind
  2. 配置开机启动
    $ chkconfig nfs on
$ chkconfig rpcbind on
  3. 启动nfs
    $ service rpcbind start(先启动，再启动nfs,有依赖关系）
$ service nfs start
  4. 配置nfs信息
    $ vim /etc/exports
  5. 写入除网站data以外的目录（注意配置，尽量写内网ip，如：192.168.1.1，不要写127.0.0.1，否则不要同步config目录） 注意：下例子是ERP的配置，不同版本系列可能目录不同，注意规避细节，501和502是www用户的gid和uid不同系统不同
    /opt/www/app           *(rw,sync,all_squash,anonuid=501,anongid=502)
/opt/www/public        *(rw,sync,all_squash,anonuid=501,anongid=502)
/opt/www/custom        *(rw,sync,all_squash,anonuid=501,anongid=502)
/opt/www/upgrade       *(rw,sync,all_squash,anonuid=501,anongid=502)
/opt/www/config        *(rw,sync,all_squash,anonuid=501,anongid=502)
/opt/www/crontab       *(rw,sync,all_squash,anonuid=501,anongid=502)
/opt/www/script        *(rw,sync,all_squash,anonuid=501,anongid=502)
/opt/www/tools         *(rw,sync,all_squash,anonuid=501,anongid=502)
  6. 查看挂载NFS用另外一台机器(web2:192.168.1.2)查看挂载信息
    $ showmount -e 192.168.1.1

    如果能显示以上信息，说明NFS配置是没问题的

    复制web1的网站目录，

    $ tar -zcvf web.tar.gz /opt/www/web1(最好打包）

$ scp web.tar.gz 192.168.1.2:/opt/www

    解压网站文件

    删除 以上目录里面的信息

    $ rm -rf /opt/www/app/* /opt/www/public/* /opt/www/custom/* /opt/www/upgrade/* /opt/www/config/* /opt/www/crontab/* /opt/www/script/* /opt/www/tools/* (删除操作，请仔细核对，不要复制粘贴，删除目录等同挂载目录，留下空文件夹)

    挂载远端nfs程序

    编辑/etc/fstab,设置开机自动挂载

    192.168.1.1:/opt/www/tools   /opt/www/tools nfs     defaults        0 0
192.168.1.1:/opt/www/script  /opt/www/script nfs    defaults        0 0
192.168.1.1:/opt/www/crontab /opt/www/crontab nfs   defaults        0 0
192.168.1.1:/opt/www/config  /opt/www/config  nfs   defaults        0 0
192.168.1.1:/opt/www/upgrade /opt/www/upgrade nfs   defaults        0 0
192.168.1.1:/opt/www/custom  /opt/www/custom  nfs   defaults        0 0
192.168.1.1:/opt/www/public  /opt/www/public  nfs   defaults        0 0
192.168.1.1:/opt/www/app     /opt/www/app   nfs     defaults        0 0

    先进web文件夹看下是否有信息残留，没有的话，执行挂载mount -a（如果没报错，就说明成功了，有报错请baidu查找NFS官方文档进行配置）

    再次查阅app目录

    touch 个文件试试，如果正常写入，则表示成功

三、rsync同步方案（该方案需要网站后台锁定到其中一台服务器，适合2台以上集群）

所有web 都要配置如下：

  1. 设置如下
    $ yum -y install xinetd
$ chkconfig xinetd on
$ chkconfig rsync on
$ /etc/init.d/xinetd start
#查看是否开机启动
$ chkconfig --list|grep rsync
$ chkconfig --list|grep xinetd
 
$ vim /etc/rsync.conf
log file = /data/rsync/logs/sync/rsyncd/rsyncd.log(需要有相应目录)
pid file = /data/rsync/logs/sync/rsyncd/rsyncd.pid
lock file = /var/run/rsync.lock
use chroot = yes
[www]
path = /opt/www
hosts allow = 10.0.1.0/24（内网网段，可以只允许主服务器）
comment = update
ignore errors
uid = www
gid = www
read only = false
  2. 重启服务
    $ /etc/init.d/xinetd restart
  3. 其他机器不需要网站目录程序，创建个/data目录，直接把整个网站推送过去
    $ rsync -vzrtopg --numeric-ids --delete --exclude=data/logs --exclude=data/cache --progress  /opt/www/public www@10.0.1.2::www
$ rsync -vzrtopg --numeric-ids --delete --exclude=data/logs --exclude=data/cache --progress  /opt/www/public www@10.0.1.3::www

    如果需要保持数据一致，需要定时推送，推送服务器IP为10.0.0.1，公网IP：x.x.x.x 重新执行下该命令，估算下时间，然后创建计划任务，计划任务执行时间尽量大于执行的时间

  4. 登录后台操作的，配置hosts文件,域名为绑定激活的域名 windows下： C:\Windows\System32\drivers\etc\hosts x.x.x.x www.ceshi.com mac: sudo vim /etc/hosts x.x.x.x www.ceshi.com 该方案必须锁定!
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