BlogJava-zhb8015-文章分类-linux,unix

以下为脚本：

1.主机脚本(192.168.29.3)

   1 vi /etc/rc.conf
     nfs_server_enable="YES"
     nfs_server_flags="-u -t -n 4"
     mountd_flags="-r"
   2 vi /etc.exports
    /quark/ /quark/somains /quark/ldbm /quark/mysql/var -mapall=root -network 192.168.29.0 -mask 255.255.255.0
3 vi /tools/monitor.sh
    #!/bin/sh
    /quark/bin/monitor --host 192.168.29.3 25 10 5 /tools/failover.sh &
4 vi /tools/failover.sh
    #!/bin/sh
    /quark/bin/quark stop
    /quark/bin/sql-server.sh stop
    /quark/bin/openldap.sh stop
    /quark/bin/web-server.sh stop
    /quark/bin/web-admin.sh stop
    ifconfig fxp0 down
5 vi /tools/takeover.sh
    #!/bin/sh
    ifconfig fxp0 192.168.29.3 netmask 255.255.255.0 up
    route add default 192.168.29.20
    /quark/bin/quark start
    /quark/bin/sql-server.sh start
    /quark/bin/openldap.sh start
    /quark/bin/web-server.sh start
    /quark/bin/web-admin.sh start
备机脚本；(192.168.29.4)
1vi/etc/rc.conf
   nfs_client_enable="YES"
   nfs_client_flags="-n 4"
2.vi/tools/monitor.sh
    #!/bin/sh
    /quark/bin/monitor --host 192.168.29.3 25 10 6 /tools/failover.sh &
3 vi /tools/failover.sh
   #!/bin/sh
    ifconfig fxp0 down
    ifconfig fxp0 192.168.29.3 netmask 255.255.255.0 up
    route add default 192.168.29.20
   /quark/bin/quark start
   /quark/bin/sql-server.sh start
   /quark/bin/openldap.sh start
   /quark/bin/web-server.sh start
   /quark/bin/web-admin.sh start
4vi /tools/takeover.sh
   #!/bin/sh
   /quark/bin/quark stop
   /quark/bin/sql-server.sh stop
   /quark/bin/openldap.sh stop
   /quark/bin/web-server.sh stop
   /quark/bin/web-admin.sh stop
   ifconfig fxp0 192.168.29.4 netmask 255.255.255.0 up
    route add default 192.168.29.20
5vi /tools/mount.sh
    #!/bin/sh
    mount -t nfs 192.168.29.3:/quark/domains /data/domains
    mount -t nfs 192.168.29.3:/quark/ldbm /data/ldbm
    mount -t nfs 192.168.29.3:/quark/mysql/var /data/var
6 vi /tools/mirror.sh
    #1/bin/sh
    /quark/bin/cpbk -rn /data/domains /quark/domains
    /quark/bin/cpbk -rn /data/ldbm /quark/ldbm
    /quark/bin/cpbk -rn /data/var /quark/mysql/var

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LINUX双机热备

LINUX 系统下双机热备

主服务器；MAIL1 10.154.4.42

备服务器：MAIL2 10.154.4.43

配置主服务器：MAIL1

1. 修改/etc/rc.conf

vi /etc/rc.conf

nfs_server_enable=”YES”

nfs_server_flags=“-u –t –n 4”

mountd_flags=”-r”

2. 修改/etc/exports

vi /etc/exports

/quark/domains *(rw,all_squash,anonuid=8888,anongid=8888)

/quark/ldbm *(rw,no_root_squash)

/quark/mysql/var *(rw,all_sqush,anonuid=8889,anongid=8889)

配置备服务器：MAIL2

1 .修改/etc/rc.conf

vi /etc/rc.conf

nfs_client_enable=”YES”

nfs_client_flags=”-n 4”

2)vi mount.sh（启动挂载脚本）

#!/bin/sh

mount –t nfs 10.154.4.42:/quark/domains /data/domains

mount –t nfs 10.154.4.42:/quark/ldbm /data/ldbm

mount –t nfs 10.154.4.42:/quark/mysql/var /data/var

注：系统要时刻运行/quark/tools/mount.sh脚本。使得从机时刻挂载着主机开放出来的分区。

5)vi mirror.sh（启动同步数据的脚本）

#!/bin/sh

/quark/bin/cpbk –rn /data/domains /quark/domains

/quark/bin/cpbk –rn /data/ldbm /quark/ldbm

/quark/bin/cpbk –rn /data/var /quark/mysql/var

6)crontab –e –uroot

59 3,5,7,9,11,13,15,17,19,21,23 * * * /quark/tools/ bakup.sh &

注：

1. 所用到的脚本程序

monitor.sh ---à 监听程序

failover.sh ---à 监听失败处理

takeover.sh ----à 恢复脚本

mount.sh -----à 挂载脚本

mirror.sh -----à 同步数据的脚本

2 . 配置好主服务器和备服务器所要用到的脚本后，要修改这些脚本的权限

如：chmod 755 monitor.sh

chmod 755 failover.sh

chmod 755 takeover.sh

chmod 755 mount.sh

chmod 755 mirror.sh

3. 主服务器上monitor.sh脚本要在系统启动时就执行，把此脚本的路径加入到系统的启动脚本中。如下：

cd /etc/rc.d

vi rc.local

/quark/tools/monitor.sh

5. 备服务器上monitor.sh, mount.sh两个脚本要在系统启动时就执行，把这两个脚本的路径加入到系统的启动脚本中。如下：

cd /etc/rc.d

vi rc.local

/quark/tools/monitor.sh

/quark/tools/mount.sh

4. 当主服务器恢复故障后，要在备服务器上手动执行takeover.sh这个脚本。如下；

cd /quark/tools

./takeover.sh