Keepalive 双主搭建配置
环境说明：
192.168.1.10 keepalive 主1
192.168.1.20 keepalive 主2
192.168.1.111 keepalive 主1 从2 VIP
192.168.1.222 keepalive 从1 主2 VIP
1 官网下载最新版本
keepalived-1.2.19
2 部署安装：
yum install gcc gcc-c++ make openssl openssl-devel tar zxvf keepalived-1.2.19.tar.gz cd keepalived-1.2.19 ./configure --sysconf=/etc/ --with-kernel-dir=/usr/src/linux --prefix=/usr/local/keepalived make ; make install cp /usr/local/keepalive/sbin/keepalived /usr/bin/ cp /usr/local/keepalived/sbin/keepalived /usr/bin/ cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/ cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/ chkconfig keepalived on
3 建立配置文件：
vim /etc/keepalived/keepalived.conf
global_defs {
notification_email {
[email protected]
}
notification_email_from [email protected]
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id Mariadb_keepalive1
}
vrrp_script notification {
script "/data/ops/script/mail.sh"
interval 1
weight 2
}
vrrp_script check_alive {
script "/data/ops/script/mysql_check.sh"
interval 1
weight 2
}
vrrp_instance Mariadb_keepalive_channel1 {
state MASTER
interface eth0
virtual_router_id 100
priority 200
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.1.111
}
track_script {
check_alive
}
}
vrrp_instance Mariadb_keepalive_channel2 {
state BACKUP
interface eth0
virtual_router_id 101
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.1.222
}
track_script {
check_alive
}
}
4 然后启动即可
/etc/init.d/keepalived start
5 Keepalive 另一主服务器除配置文件不一样，其他配置步骤如上，配置文件如下：
vim /etc/keepalived/keepalived.conf
global_defs {
notification_email {
[email protected]
}
notification_email_from [email protected]
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id Mariadb_keepalive
}
vrrp_script notification {
script "/data/ops/script/mail.sh"
interval 1
weight 2
}
vrrp_script check_alive {
script "/data/ops/script/mysql_check.sh"
interval 1
weight 2
}
vrrp_instance Mariadb_keepalive_channel1 {
state BACKUP
interface eth0
virtual_router_id 100
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.1.111
}
track_script {
check_alive
}
}
vrrp_instance Mariadb_keepalive_channel2 {
state MASTER
interface eth0
virtual_router_id 101
priority 200
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.1.222
}
track_script {
check_alive
}
}
6 效果图：
两台同时运行：
192.168.1.10：
192.168.1.20
192.168.1.10 keepalive 关闭后：
时间： 2024-10-13 01:26:40