nginx高可用实践
主服务器Jun 15 17:05:04 bogon Keepalived_vrrp: VRRP_Instance(VI_1) forcing a new MASTER election
Jun 15 17:05:04 bogon Keepalived_vrrp: VRRP_Instance(VI_1) forcing a new MASTER election
Jun 15 17:05:05 bogon Keepalived_vrrp: VRRP_Instance(VI_1) Transition to MASTER STATE
Jun 15 17:05:06 bogon Keepalived_vrrp: VRRP_Instance(VI_1) Entering MASTER STATE
Jun 15 17:05:06 bogon Keepalived_vrrp: VRRP_Instance(VI_1) setting protocol VIPs.
Jun 15 17:05:06 bogon Keepalived_vrrp: VRRP_Instance(VI_1) Sending gratuitous ARPs on ens33 for 172.16.0.200
Jun 15 17:05:06 bogon Keepalived_healthcheckers: Netlink reflector reports IP 172.16.0.200 added
Jun 15 17:05:11 bogon Keepalived_vrrp: VRRP_Instance(VI_1) Sending gratuitous ARPs on ens33 for 172.16.0.200
2: ens33:mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:0c:29:62:eb:24 brd ff:ff:ff:ff:ff:ff
inet 172.16.0.151/16 brd 172.16.255.255 scope global ens33
valid_lft forever preferred_lft forever
inet 172.16.0.200/32 scope global ens33
valid_lft forever preferred_lft forever
附属服务器
Jun 15 16:45:10 bogon Keepalived_vrrp: VRRP_Instance(VI_1) Sending gratuitous ARPs on ens33 for 172.16.0.200
Jun 15 16:45:10 bogon Keepalived_healthcheckers: Netlink reflector reports IP 172.16.0.200 added
Jun 15 16:45:15 bogon Keepalived_vrrp: VRRP_Instance(VI_1) Sending gratuitous ARPs on ens33 for 172.16.0.200
Jun 15 16:56:12 bogon Keepalived_vrrp: Netlink reflector reports IP 192.168.1.117 added
Jun 15 16:56:12 bogon Keepalived_healthcheckers: Netlink reflector reports IP 192.168.1.117 added
Jun 15 17:05:04 bogon Keepalived_vrrp: VRRP_Instance(VI_1) Received higher prio advert
Jun 15 17:05:04 bogon Keepalived_vrrp: VRRP_Instance(VI_1) Entering BACKUP STATE
Jun 15 17:05:04 bogon Keepalived_vrrp: VRRP_Instance(VI_1) removing protocol VIPs.
Jun 15 17:05:04 bogon Keepalived_healthcheckers: Netlink reflector reports IP 172.16.0.200 removed
6: ens33:mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:0c:29:0f:b3:9b brd ff:ff:ff:ff:ff:ff
inet 172.16.0.152/16 brd 172.16.255.255 scope global ens33
valid_lft forever preferred_lft forever
inet6 fe80::857b:a8be:2221:44af/64 scope link
valid_lft forever preferred_lft forever
当down掉主服务器的nginx时，主服务器优先级会降低，此时附属服务器
Jun 15 17:05:04 bogon Keepalived_healthcheckers: Netlink reflector reports IP 172.16.0.200 removed
Jun 15 17:07:56 bogon Keepalived_vrrp: VRRP_Instance(VI_1) forcing a new MASTER election
Jun 15 17:07:56 bogon Keepalived_vrrp: VRRP_Instance(VI_1) forcing a new MASTER election
Jun 15 17:07:57 bogon Keepalived_vrrp: VRRP_Instance(VI_1) Transition to MASTER STATE
Jun 15 17:07:58 bogon Keepalived_vrrp: VRRP_Instance(VI_1) Entering MASTER STATE
Jun 15 17:07:58 bogon Keepalived_vrrp: VRRP_Instance(VI_1) setting protocol VIPs.
Jun 15 17:07:58 bogon Keepalived_vrrp: VRRP_Instance(VI_1) Sending gratuitous ARPs on ens33 for 172.16.0.200
Jun 15 17:07:59 bogon Keepalived_healthcheckers: Netlink reflector reports IP 172.16.0.200 added
6: ens33:mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:0c:29:0f:b3:9b brd ff:ff:ff:ff:ff:ff
inet 172.16.0.152/16 brd 172.16.255.255 scope global ens33
valid_lft forever preferred_lft forever
inet 172.16.0.200/32 scope global ens33
valid_lft forever preferred_lft forever
inet6 fe80::857b:a8be:2221:44af/64 scope link
valid_lft forever preferred_lft forever
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