记一次keepalived配置nopreempt不抢占模式总是失效

• 主配置文件

  
  ! Configuration File for keepalived

global_defs {
router_id gd_ha01
}

vrrp_script check_nginx {
script "pidof nginx"
interval 2
}

vrrp_instance VI_1 {
state BACKUP
interface ens160
virtual_router_id 101
priority 100
advert_int 2
nopreempt
authentication {
auth_type PASS
auth_pass 1111
}

notify_master "/application/keepalived/scripts/master.sh"
notify_backup "/application/keepalived/scripts/backup.sh"
notify_fault "/application/keepalived/scripts/fault.sh"

track_script {
    check_nginx
}

virtual_ipaddress {
    192.168.0.93
}

}

- 备配置文件

! Configuration File for keepalived

global_defs {
router_id gd_ha02
}

vrrp_script check_nginx {
script "pidof nginx"
interval 2
}

vrrp_instance VI_1 {
state BACKUP
interface ens160
virtual_router_id 101
priority 80
advert_int 2
nopreempt
authentication {
auth_type PASS
auth_pass 1111
}

notify_master "/application/keepalived/scripts/master.sh"
notify_backup "/application/keepalived/scripts/backup.sh"
notify_fault "/application/keepalived/scripts/fault.sh"

track_script {
    check_nginx
}

virtual_ipaddress {
    192.168.0.93
}

}

# 原因分析
检查多次配置文件没有错，主的上面nginx杀掉后，vip漂移到备上能正常访问，主的nginx起来后，vip又飘回到主上，各种排查（设置preempt_delay、设置ip转发、了解单播/组播），各种配置文件修改，折腾一番后还是没有解决，正准备打算就这种使用抢占模式使用时，突然想起来前几天自己配置的别的keepalived，发现局域网中有virtual_router_id相同的服务器导致的不抢占模式失效。

记一次keepalived配置nopreempt不抢占模式总是失效

原文：https://blog.51cto.com/14843781/2512304