Lvs

主備之間的 LVS Keepalived 連接

  • June 5, 2015

我配置了兩個lvs keepalived伺服器。首先是主伺服器，ip 10.1.88.76，iptables 關閉。第二個是備份伺服器，ip 10.1.88.77，iptables 關閉。兩台伺服器之間的網路連接正常（通過 ping 驗證）

但是，問題是兩台伺服器都處於 MASTER 狀態。我期望的是一個處於 Master 模式，另一個處於 BACKUP 模式。

我應該怎麼做才能解決問題？謝謝

76伺服器中的配置。

! Configuration File for keepalived

global_defs {
  notification_email {
   acassen@firewall.loc
   failover@firewall.loc
       sysadmin@firewall.loc
  }
  notification_email_from test@test.cn
  smtp_server 192.168.200.1
  smtp_connect_timeout 30
  router_id LVS_DEVEL
}

vrrp_instance VI_1 {
   state MASTER
   interface eth0
   virtual_router_id 100
   priority 100
   advert_int 1
   authentication {
       auth_type PASS
       auth_pass 2013
   }
   virtual_ipaddress {
       10.1.88.81
   }
}

virtual_server 10.1.88.81 23 {
   delay_loop 6
   lb_algo rr
   lb_kind DR
   nat_mask 255.255.255.0
   persistence_timeout 50
   protocol TCP

   real_server 10.1.88.78 23 {
       weight 1
       TCP_CHECK {
           connect_timeout 3
           connect_port 23
       }
   }

   real_server 10.1.88.79 23{
       weight 1
       TCP_CHECK {
           connect_timeout 3
           connect_port 23
       }
   }

   real_server 10.1.88.80 23 {
       weight 1
       TCP_CHECK {
           connect_timeout 3
           connect_port 23
       }
   }
}

77伺服器中的配置

! Configuration File for keepalived

global_defs {
  notification_email {
    acassen@firewall.loc
    failover@firewall.loc
    sysadmin@firewall.loc
  }
  notification_email_from test@test.cn
  smtp_server 192.168.200.1
  smtp_connect_timeout 30
  router_id LVS_DEVEL
}

vrrp_instance VI_1 {
   state BACKUP
   interface eth0
   virtual_router_id 101 
   priority 90
   advert_int 1
   authentication {
       auth_type PASS
       auth_pass 2013
   }
   virtual_ipaddress {
       10.1.88.81
   }
}

virtual_server 10.1.88.81 23 {
   delay_loop 6
   lb_algo rr
   lb_kind DR
   nat_mask 255.255.255.0
   persistence_timeout 50
   protocol TCP

   real_server 10.1.88.78 23 {
       weight 1
       TCP_CHECK {
           connect_timeout 3
           connect_port 23
       }
   }

   real_server 10.1.88.79 23{
       weight 1
       TCP_CHECK {
           connect_timeout 3
           connect_port 23
       }
   }

   real_server 10.1.88.80 23 {
       weight 1
       TCP_CHECK {
           connect_timeout 3
           connect_port 23
       }
   }
}

來自76伺服器的消息

Jun 26 11:06:41 node0 Keepalived_vrrp[1264]: VRRP_Instance(VI_1) sending 0 priority
Jun 26 11:06:41 node0 Keepalived[1262]: Stopping Keepalived v1.2.7 (02/21,2013)
Jun 26 11:07:44 node0 Keepalived[1261]: Starting Keepalived v1.2.7 (02/21,2013)
Jun 26 11:07:44 node0 Keepalived[1262]: Starting Healthcheck child process, pid=1263
Jun 26 11:07:44 node0 Keepalived[1262]: Starting VRRP child process, pid=1264
Jun 26 11:07:44 node0 Keepalived_vrrp[1264]: Interface queue is empty
Jun 26 11:07:44 node0 Keepalived_vrrp[1264]: Netlink reflector reports IP 10.1.88.76 added
Jun 26 11:07:44 node0 Keepalived_vrrp[1264]: Netlink reflector reports IP fe80::5054:ff:fe8f:97f6 added
Jun 26 11:07:44 node0 Keepalived_vrrp[1264]: Registering Kernel netlink reflector
Jun 26 11:07:44 node0 Keepalived_vrrp[1264]: Registering Kernel netlink command channel
Jun 26 11:07:44 node0 Keepalived_vrrp[1264]: Registering gratuitous ARP shared channel
Jun 26 11:07:44 node0 Keepalived_healthcheckers[1263]: Interface queue is empty
Jun 26 11:07:44 node0 Keepalived_healthcheckers[1263]: Netlink reflector reports IP 10.1.88.76 added
Jun 26 11:07:44 node0 Keepalived_healthcheckers[1263]: Netlink reflector reports IP fe80::5054:ff:fe8f:97f6 added
Jun 26 11:07:44 node0 Keepalived_healthcheckers[1263]: Registering Kernel netlink reflector
Jun 26 11:07:44 node0 Keepalived_healthcheckers[1263]: Registering Kernel netlink command channel
Jun 26 11:07:44 node0 Keepalived_healthcheckers[1263]: Opening file '/etc/keepalived/keepalived.conf'.
Jun 26 11:07:44 node0 Keepalived_vrrp[1264]: Opening file '/etc/keepalived/keepalived.conf'.
Jun 26 11:07:44 node0 Keepalived_vrrp[1264]: Configuration is using : 63254 Bytes
Jun 26 11:07:44 node0 Keepalived_vrrp[1264]: Using LinkWatch kernel netlink reflector...
Jun 26 11:07:44 node0 Keepalived_healthcheckers[1263]: Configuration is using : 17141 Bytes
Jun 26 serial8250: too much work for irq4
11:07:44 node0 Keepalived_vrrp[1264]: VRRP sockpool: [ifindex(2), proto(112), fd(11,12)]
Jun 26 11:07:44 node0 Keepalived_healthcheckers[1263]: Using LinkWatch kernel netlink reflector...
Jun 26 11:07:44 node0 Keepalived_healthcheckers[1263]: Activating healthchecker for service [10.1.88.78]:23
Jun 26 11:07:44 node0 Keepalived_healthcheckers[1263]: Activating healthchecker for service [10.1.88.79]:23
Jun 26 11:07:44 node0 Keepalived_healthcheckers[1263]: Activating healthchecker for service [10.1.88.80]:23
Jun 26 11:07:45 node0 Keepalived_vrrp[1264]: VRRP_Instance(VI_1) Transition to MASTER STATE
Jun 26 11:07:46 node0 Keepalived_vrrp[1264]: VRRP_Instance(VI_1) Entering MASTER STATE
Jun 26 11:07:46 node0 Keepalived_vrrp[1264]: VRRP_Instance(VI_1) setting protocol VIPs.
Jun 26 11:07:46 node0 Keepalived_vrrp[1264]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 10.1.88.81
Jun 26 11:07:46 node0 Keepalived_healthcheckers[1263]: Netlink reflector reports IP 10.1.88.81 added
Jun 26 11:07:51 node0 Keepalived_vrrp[1264]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 10.1.88.81
[root@node0 ~]# date
Wed Jun 26 11:08:08 CST 2013

來自 77 伺服器的消息

Jun 26 11:07:50 node1 Keepalived[1284]: Starting Keepalived v1.2.7 (02/21,2013)
Jun 26 11:07:50 node1 Keepalived[1285]: Starting Healthcheck child process, pid=1286
Jun 26 11:07:50 node1 Keepalived[1285]: Starting VRRP child process, pid=1287
Jun 26 11:07:50 node1 Keepalived_vrrp[1287]: Interface queue is empty
Jun 26 11:07:50 node1 Keepalived_vrrp[1287]: Netlink reflector reports IP 10.1.88.77 added
Jun 26 11:07:50 node1 Keepalived_vrrp[1287]: Netlink reflector reports IP fe80::5054:ff:fee6:54b7 added
Jun 26 11:07:50 node1 Keepalived_vrrp[1287]: Registering Kernel netlink reflector
Jun 26 11:07:50 node1 Keepalived_vrrp[1287]: Registering Kernel netlink command channel
Jun 26 11:07:50 node1 Keepalived_vrrp[1287]: Registering gratuitous ARP shared channel
Jun 26 11:07:50 node1 Keepalived_healthcheckers[1286]: Interface queue is empty
Jun 26 11:07:50 node1 Keepalived_vrrp[1287]: Opening file '/etc/keepalived/keepalived.conf'.
Jun 26 11:07:50 node1 Keepalived_healthcheckers[1286]: Netlink reflector reports IP 10.1.88.77 added
Jun 26 11:07:50 node1 Keepalived_healthcheckers[1286]: Netlink reflector reports IP fe80::5054:ff:fee6:54b7 added
Jun 26 11:07:50 node1 Keepalived_healthcheckers[1286]: Registering Kernel netlink reflector
Jun 26 11:07:50 node1 Keepalived_healthcheckers[1286]: Registering Kernel netlink command channel
Jun 26 11:07:50 node1 Keepalived_healthcheckers[1286]: Opening file '/etc/keepalived/keepalived.conf'.
Jun 26 11:07:50 node1 Keepalived_vrrp[1287]: Configuration is using : 63252 Bytes
Jun 26 11:07:50 node1 Keepalived_vrrp[1287]: Using LinkWatch kernel netlink reflector...
Jun 26 11:07:50 node1 Keepalived_healthcheckers[1286]: Configuration is using : 17139 Bytes
Jun 26 11:07:50 node1 Keepalived_vrrp[1287]: VRRP_Instance(VI_1) Entering BACKUP STATE
Jun 26 11:07:50 node1 Keepalived_vrrp[1287]: VRRP sockpool: [ifindex(2), proto(112), fd(11,12)]
Jun 26 11:07:50 node1 Keepalived_healthcheckers[1286]: Using LinkWatch kernel netlink reflector...
Jun 26 11:07:50 node1 Keepalived_healthcheckers[1286]: Activating healthchecker for service [10.1.88.78]:23
Jun 26 11:07:50 node1 Keepalived_healthcheckers[1286]: Activating healthchecker for service [10.1.88.79]:23
Jun 26 11:07:50 node1 Keepalived_healthcheckers[1286]: Activating healthchecker for service [10.1.88.80]:23
Jun 26 11:07:53 node1 Keepalived_vrrp[1287]: VRRP_Instance(VI_1) Transition to MASTER STATE
Jun 26 11:07:54 node1 Keepalived_vrrp[1287]: VRRP_Instance(VI_1) Entering MASTER STATE
Jun 26 11:07:54 node1 Keepalived_vrrp[1287]: VRRP_Instance(VI_1) setting protocol VIPs.
Jun 26 11:07:54 node1 Keepalived_vrrp[1287]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 10.1.88.81
Jun 26 11:07:54 node1 Keepalived_healthcheckers[1286]: Netlink reflector reports IP 10.1.88.81 added
Jun 26 11:07:59 node1 Keepalived_vrrp[1287]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 10.1.88.81

您需要允許兩台主機之間的 vrrp 流量，以便它們可以執行心跳。

引用自：https://serverfault.com/questions/518597

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