由DHCP引起的Keepalived无法绑定VIP

一 故障描述

我在台湾合作方给定的两台虚拟机上部署HAProxy+Keepalived负载均衡高可用方案。在配置完Keepalived后，重新启动Keepalived，Keepalived没有绑定VIP。

keepalived.conf的内容

LB1 Master

! Configuration File for keepalived

global_defs {
   notification_email {
     admin@example.com
   }
   notification_email_from lb1@example.com
   smtp_server 127.0.0.1
   smtp_connect_timeout 30
   router_id LB1_MASTER
}

 vrrp_script chk_haproxy {
        script "killall -0 haproxy"
        interval 2
    weight 2
    }




vrrp_instance VI_1 {
    state MASTER
    interface eth1
    virtual_router_id 51
    priority 100
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {

     10.1.1.200/24      brd 10.1.1.255      dev eth1 label eth1:vip

    }

    track_script {
        chk_haproxy
                 }
}

重新启动Keepalived查看日志

Mar  3 18:09:00 cv00300005248-1 Keepalived[20138]: Stopping Keepalived v1.2.15 (02/28,2015)
Mar  3 18:09:00 cv00300005248-1 Keepalived[20259]: Starting Keepalived v1.2.15 (02/28,2015)
Mar  3 18:09:00 cv00300005248-1 Keepalived[20260]: Starting Healthcheck child process, pid=20261
Mar  3 18:09:00 cv00300005248-1 Keepalived[20260]: Starting VRRP child process, pid=20262
Mar  3 18:09:00 cv00300005248-1 Keepalived_vrrp[20262]: Registering Kernel netlink reflector
Mar  3 18:09:00 cv00300005248-1 Keepalived_vrrp[20262]: Registering Kernel netlink command channel
Mar  3 18:09:00 cv00300005248-1 Keepalived_vrrp[20262]: Registering gratuitous ARP shared channel
Mar  3 18:09:00 cv00300005248-1 Keepalived_healthcheckers[20261]: Registering Kernel netlink reflector
Mar  3 18:09:00 cv00300005248-1 Keepalived_healthcheckers[20261]: Registering Kernel netlink command channel
Mar  3 18:09:00 cv00300005248-1 Keepalived_healthcheckers[20261]: Configuration is using : 3924 Bytes
Mar  3 18:09:00 cv00300005248-1 Keepalived_healthcheckers[20261]: Using LinkWatch kernel netlink reflector...
Mar  3 18:09:00 cv00300005248-1 Keepalived_vrrp[20262]: Configuration is using : 55712 Bytes
Mar  3 18:09:00 cv00300005248-1 Keepalived_vrrp[20262]: Using LinkWatch kernel netlink reflector...
Mar  3 18:09:18 cv00300005248-1 kernel: __ratelimit: 1964 callbacks suppressed
Mar  3 18:09:18 cv00300005248-1 kernel: Neighbour table overflow.
Mar  3 18:09:18 cv00300005248-1 kernel: Neighbour table overflow.
Mar  3 18:09:18 cv00300005248-1 kernel: Neighbour table overflow.
Mar  3 18:09:18 cv00300005248-1 kernel: Neighbour table overflow.
Mar  3 18:09:18 cv00300005248-1 kernel: Neighbour table overflow.
Mar  3 18:09:18 cv00300005248-1 kernel: Neighbour table overflow.
Mar  3 18:09:18 cv00300005248-1 kernel: Neighbour table overflow.
Mar  3 18:09:18 cv00300005248-1 kernel: Neighbour table overflow.
Mar  3 18:09:18 cv00300005248-1 kernel: Neighbour table overflow.
Mar  3 18:09:18 cv00300005248-1 kernel: Neighbour table overflow.

查看VIP绑定情况

$ ifconfig eth1:ha
eth1:ha   Link encap:Ethernet  HWaddr 00:16:3E:F2:37:6B  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:13

没有VIP绑定

二 排查过程

1）检查VIP的配置情况

向合作方确认提供的VIP的详细情况

IPADDR   10.1.1.200

NETMASK   255.255.255.0

GATEWAY   10.1.1.1

Brodcast  10.1.1.255

参考文档：

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