时间:2021-07-01 10:21:17 帮助过:150人阅读
global_defs {
notification_email {
test@sina.com
}
notification_email_from admin@test.com
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id MYSQL_HA #标识,双主相同
}
vrrp_instance VI_1 {
state BACKUP #两台都设置BACKUP
interface eth0
virtual_router_id 51 #主备相同
priority 100 #优先级,backup设置90
advert_int 1
nopreempt #不主动抢占资源,只在master这台优先级高的设置,backup不设置
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.42.170
}
}
virtual_server 192.168.42.170 3306 {
delay_loop 2
#lb_algo rr #LVS算法,用不到,我们就关闭了
#lb_kind DR #LVS模式,如果不关闭,备用服务器不能通过VIP连接主MySQL
persistence_timeout 50 #同一IP的连接60秒内被分配到同一台真实服务器
protocol TCP
real_server 192.168.42.128 3306 { #检测本地mysql,backup也要写检测本地mysql
weight 3
notify_down /etc/keepalived/mysql.sh #当mysq服down时,执行此脚本,杀死keepalived实现切换
TCP_CHECK {
connect_timeout 3 #连接超时
nb_get_retry 3 #重试次数
delay_before_retry 3 #重试间隔时间
}
}
#!/bin/sh
killall keepalived
启动正常,当mysql停掉之后keepalived 无法自杀。