我正在主动/被动模式下设置HA代理。
haproxy-a : 172.29.240.172 haproxy-b : 172.29.240.173 Floating IP (VIP) : 172.29.240.188 在任何configuration之前：
[root@haproxy-a/b ~]# cat /etc/redhat-release Red Hat Enterprise Linux Server release 7.3 (Maipo) [root@haproxy-a ~]# ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever 2: ens160: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000 link/ether 00:50:56:9b:22:86 brd ff:ff:ff:ff:ff:ff inet 172.29.240.172/26 brd 172.29.240.191 scope global ens160 valid_lft forever preferred_lft forever [root@haproxy-b keepalived]# ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever 2: ens160: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000 link/ether 00:50:56:9b:2b:a6 brd ff:ff:ff:ff:ff:ff inet 172.29.240.173/26 brd 172.29.240.191 scope global ens160 valid_lft forever preferred_lft forever
我已经完成的步骤。
在两台服务器上configurationkeepalived
haproxy-a/b # yum install -y keepalived [root@haproxy-a ~]# cat /etc/keepalived/keepalived.conf vrrp_script chk_haproxy { script "killall -0 haproxy" interval 1 weight -90 } vrrp_instance VI_1 { interface ens160 #interface to monitor state MASTER virtual_router_id 51 priority 100 # highest priority wins the election of master virtual_ipaddress { 172.29.240.188 } track_script { chk_haproxy } } [root@haproxy-b ~]# cat /etc/keepalived/keepalived.conf vrrp_script chk_haproxy { script "killall -0 haproxy" interval 1 weight -10 } vrrp_instance VI_1 { interface ens160 #interface to monitor state BACKUP virtual_router_id 51 priority 50 # highest priority wins the election of master virtual_ipaddress { 172.29.240.188 } track_script { chk_haproxy } }
然后我在两个节点上启动keepalived服务。 firewalld ＆ iptables已停止，操作系统级别上没有其他configuration被更改。
一旦keepalived启动，我看不到分配给任一系统的浮动IP。 两个节点上的系统日志说：
Jul 6 13:26:51 haproxy-a Keepalived_vrrp[1862]: ip address associated with VRID not present in received packet : 172.29.240.188 Jul 6 13:26:51 haproxy-a Keepalived_vrrp[1862]: one or more VIP associated with VRID mismatch actual MASTER advert Jul 6 13:26:51 haproxy-a Keepalived_vrrp[1862]: bogus VRRP packet received on ens160 !!! Jul 6 13:26:51 haproxy-a Keepalived_vrrp[1862]: VRRP_Instance(VI_1) Dropping received VRRP packet...
keepalived中的每个逻辑节点必须在广播域上拥有唯一的virtual_router_id 。