配置MHA的配置文件

cp /root/mha4mysql-manager-0.56/samples/scripts/* /usr/local/bin/

mkdir -p /etc/masterha

cp /root/mha4mysql-manager-0.56/samples/conf/app1.cnf /etc/masterha/

修改脚本的内容 vi /etc/masterha/app1.cnf

[server default]

user=root

password=

manager_workdir=/var/log/masterha/app1.log

manager_log=/var/log/masterha/app1/manager.log

master_binlog_dir=/var/lib/mysql

master_ip_failover_script=/usr/local/bin/master_ip_failover

master_ip_online_change_script=/usr/local/bin/master_ip_online_change

ssh_user=root

repl_user=slave

repl_password=123456

ping_interval=1

remote_workdir=/var/lib/mysql

secondary_check_script=/usr/local/bin/masterha_secondary_check -s 192.168.111.201 -s 192.168.111.202 -s 192.168.111.203

[server1]

hostname=192.168.111.201

port=3306

[server2]

hostname=192.168.111.202

port=3306

candidate_master=1

check_repl_delay=0

[server3]

hostname=192.168.111.203

port=3306

文件里面设置虚拟IP（添加到my（....）；后面）

my $vip = '192.168.111.180/24';

my $key = "1";

my $ssh_start_vip = "/sbin/ifconfig eth1:$key $vip";

my $ssh_stop_vip = "/sbin/ifconfig eth1:$key down";

给主数据库服务器添加虚拟ip

网卡上增加一个IP：

ifconfig eth1:1 192.168.111.180/24 netmask 255.255.255.0

删除网卡的第二个IP地址:

ip addr del 192.168.111.180 dev eth1