heartbeat drbd mysql_heartbeat+drbd+mysql高可用配置

一、heartbeat

1、安装heartbeat

见Heartbeat安装及简单配置

2、配置参数

2.1)/etc/ha.d/ha.cf

logfile /var/log/ha-log

keepalive 2

deadtime 30

warntime 10

initdead 120

udpport 694

ucast eth1 10.10.10.2

auto_failback off

watchdog /dev/watchdog

node node1

node node2

ping 192.168.1.1

respawn hacluster /usr/lib/heartbeat/ipfail

2.2)/etc/ha.d/haresources

node1 IPaddr::192.168.1.100/24/eth0/ drbddisk Filesystem::/dev/drbd0::/opt/mysql::ext3 mysql

2.3)/etc/ha.d/authkeys

auth 1

1 crc

二、DRBD

1、DRBD安装

见DRBD安装配置说明

2、/etc/drbd.conf

global {

usage-count yes;

}

common {

syncer { rate 10M; }

}

resource r0 {

protocol C;

disk {

on-io-error detach;

}

net {

after-sb-0pri disconnect;

after-sb-1pri disconnect;

after-sb-2pri disconnect;

rr-conflict disconnect;

}

on node1 {

device /dev/drbd0;

disk /dev/sdb1;

address 10.10.10.1:7788;

meta-disk internal;

}

on node2 {

device /dev/drbd0;

disk /dev/sdb1;

address 10.10.10.2:7788;

meta-disk internal;

}

}

三、mysql

1、mysql安装

见mysql 5.5二进制文件安装

四、服务配置

1、配置mysql服务器(不要设置开机启动，由heartbeat控制)

修改mysql.server文件

basedir=/opt/mysql/product/5.5

datadir=/opt/mysql/mysqldata

mv /opt/mysql/product/5.5/support-files/mysql.server /etc/init.d/mysql

2、配置heartbeat

chkconfig –add heartbeat

chkconfig heartbeat on