解决keepalive脑裂问题，生产环境在用

#防火墙放通vrrpfirewall-cmd --permanent --add-rich-rule="rule family="ipv4" source address="192.168.12.0/24" protocol value="vrrp" accept"firewall-cmd --reload
#MASTER：192.168.12.77 PS：interface 填网卡名称，unicast_peer 填 backup机器IP地址 auth_pass必需一致vi /etc/keepalived/keepalived.conf
global_defs {    router_id LVS_DEVEL_03}vrrp_instance VI_1 {    state MASTER    interface ens32    virtual_router_id 51    priority 100    advert_int 1
    unicast_src_ip 192.168.12.77    unicast_peer {        192.168.12.78    }
    authentication {        auth_type PASS        auth_pass test1234    }    virtual_ipaddress {        192.168.12.79    }}
systemctl restart keepalived    #重启keepalived
#BACKUP：192.168.12.78 PS：interface 填网卡名称，unicast_peer 填 master机器IP地址 auth_pass必需一致vi /etc/keepalived/keepalived.conf
global_defs {    router_id LVS_DEVEL_04}vrrp_instance VI_1 {    state BACKUP    interface ens32    virtual_router_id 51    priority 80    advert_int 1
    unicast_src_ip 192.168.12.78    unicast_peer {        192.168.12.77    }
    authentication {        auth_type PASS        auth_pass test1234    }    virtual_ipaddress {        192.168.12.79    }}
systemctl restart keepalived    #重启keepalived