Mysql+Heartbeat+Drbd搭建mysql的高可用

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DRBD配置

1.配置要求
server4:172.25.13.4
server5:172.25.13.5
软件包:drbd-8.4.3.tar.gz
下载地址：http://oss.linbit.com/drbd/

yum install gcc -yyum install rpm-build -y yum install kernel-devel -yyum install flex -y

2.软件安装
[server4]

tar zxf drbd-8.4.3.tar.gzcd drbd-8.4.3./configure --enable-spec --with-kmrpmbuild -bb drbd.spec      ##制作rpm包rpmbuild -bb drbd-km.spec   ##制作drbd-km包rpm -ivh  ../rpmbuild/RPMS/x86_64/*  ##装上所有的包，一共8个

将../rpmbuild/RPMS/x86_64/下的包复制到server5上面装上

[server4][server5]
#vim /etc/drbd.d/drbd.res ##添加资源文件

resource example {    meta-disk internal; ##内部    device /dev/drbd1;  ##建立出来的磁盘名    syncer {        verify-alg sha1;##合并方式    }    on server4 {        ##主机4        disk /dev/vdb;  ##磁盘和端口        address 172.25.13.4:7789;    }    on server5 {        disk /dev/vdb;        address 172.25.13.5:7789;    }}

[server4][server5]

drbdadm create-md example   ##初始化/etc/init.d/drbd start      ##启动

[server4]

drbdsetup /dev/drbd1 primary --force    ##首次转移使用权watch -n 1 cat /proc/drbdmkfs.ext4 /dev/drbd1mount /dev/drbd1 /mnt/cp /etc/*.conf /mntumount /mnt/drbdadm secondary example

[server5]

drbdadm primary examplemount /dev/drbd1 /mnt/ls /mnt/

heartbeat的基本配置：http://blog.csdn.net/rangewudi/article/details/72822581

heartbeat+mysql+drbd高可用

[server4][server5]

yum install mysql-server    ##这里的mysql仅仅测试drbdadm secondary exampleecho 'server4 IPaddr::172.25.13.100/24/eth0 drbddisk::example Filesystem::/dev/drbd1::/var/lib/mysql::ext4 mysqld' >/etc/ha.d/haresources/etc/init.d/heartbeat start

注意/var/lib/mysql/的uid=mysql gid=mysql

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