keepalived + lvs
172.16.30.31  master
172.16.30.32  backup
172.16.30.10  vip
故障：监控显示keepalived master主机故障；通过ping查看vip存在。master重启以后，VIP漂移回master.
偶然间，重启master网卡发现，vip漂移backup以后，无法漂移回master；需重启master-keealived服务，VIP才可漂移回master.
master:
message
May  9 10:47:06 sd3031 Keepalived_healthcheckers[31967]: Netlink reflector reports IP 172.16.30.31 removed
May  9 10:47:06 sd3031 Keepalived_vrrp[31968]: Netlink reflector reports IP 172.16.30.31 removed
May  9 10:47:06 sd3031 Keepalived_vrrp[31968]: Netlink reflector reports IP 172.16.30.10 removed
May  9 10:47:06 sd3031 Keepalived_healthcheckers[31967]: Netlink reflector reports IP 172.16.30.10 removed
May  9 10:47:06 sd3031 avahi-daemon[3924]: Withdrawing address record for 172.16.30.31 on eth0.
May  9 10:47:06 sd3031 avahi-daemon[3924]: Leaving mDNS multicast group on interface eth0.IPv4 with address 172.16.30.31.
May  9 10:47:06 sd3031 avahi-daemon[3924]: Joining mDNS multicast group on interface eth0.IPv4 with address 172.16.30.10.
May  9 10:47:06 sd3031 avahi-daemon[3924]: IP_ADD_MEMBERSHIP failed: No such device
May  9 10:47:06 sd3031 avahi-daemon[3924]: Withdrawing address record for 172.16.30.10 on eth0.
May  9 10:47:06 sd3031 avahi-daemon[3924]: Interface eth0.IPv4 no longer relevant for mDNS.
May  9 10:47:06 sd3031 kernel: bnx2 0000:0b:00.0: eth0: using MSIX
May  9 10:47:06 sd3031 Keepalived_vrrp[31968]: Kernel is reporting: interface eth0 DOWN
May  9 10:47:06 sd3031 Keepalived_vrrp[31968]: VRRP_Instance(VI_1) Entering FAULT STATE
May  9 10:47:06 sd3031 Keepalived_vrrp[31968]: VRRP_Instance(VI_1) removing protocol VIPs.
May  9 10:47:06 sd3031 Keepalived_vrrp[31968]: Netlink: error: Cannot assign requested address, type=(21), seq=1494298005, pid=0
May  9 10:47:06 sd3031 Keepalived_vrrp[31968]: VRRP_Instance(VI_1) Now in FAULT state
May  9 10:47:07 sd3031 Keepalived_healthcheckers[31967]: TCP socket bind failed. Rescheduling.
May  9 10:47:09 sd3031 kernel: bnx2 0000:0b:00.0: eth0: NIC Copper Link is Up, 1000 Mbps full duplex
May  9 10:47:09 sd3031 Keepalived_healthcheckers[31967]: TCP socket bind failed. Rescheduling.
May  9 10:47:09 sd3031 last message repeated 2 times
May  9 10:47:10 sd3031 Keepalived_vrrp[31968]: Kernel is reporting: interface eth0 UP
May  9 10:47:10 sd3031 Keepalived_vrrp[31968]: cant do IP_ADD_MEMBERSHIP errno=No such device (19)
May  9 10:47:10 sd3031 Keepalived_vrrp[31968]: Netlink reflector reports IP 172.16.30.31 added
May  9 10:47:10 sd3031 Keepalived_healthcheckers[31967]: Netlink reflector reports IP 172.16.30.31 added
May  9 10:47:10 sd3031 avahi-daemon[3924]: New relevant interface eth0.IPv4 for mDNS.
May  9 10:47:10 sd3031 avahi-daemon[3924]: Joining mDNS multicast group on interface eth0.IPv4 with address 172.16.30.31.
May  9 10:47:10 sd3031 avahi-daemon[3924]: Registering new address record for 172.16.30.31 on eth0.
master重启网卡以后，keepalived在eth0网卡up状态，但是未获取到ip地址的时候，无法进行组播。
出现异常
May  9 10:47:10 sd3031 Keepalived_vrrp[31968]: Kernel is reporting: interface eth0 UP
May  9 10:47:10 sd3031 Keepalived_vrrp[31968]: cant do IP_ADD_MEMBERSHIP errno=No such device (19)
May  9 10:47:10 sd3031 Keepalived_vrrp[31968]: Netlink reflector reports IP 172.16.30.31 added
keepalived进行服务之间内部通信，需要网卡IP做支撑，此出，网卡未有IP，keepalived之间通信失败。
master与backup之间通信失败，导致vip未进行漂移。
修改了keepalived.conf
vrrp_instance ** {
advert_int 2          #修改此项，为keepalived之间组播间隔时间。
}
将默认1修改为2
重启master网卡
master_message.log
May  9 11:03:30 sd3031 Keepalived_healthcheckers[5463]: Netlink reflector reports IP 172.16.30.31 removed
May  9 11:03:30 sd3031 avahi-daemon[3924]: Withdrawing address record for 172.16.30.31 on eth0.
May  9 11:03:30 sd3031 Keepalived_healthcheckers[5463]: Netlink reflector reports IP 172.16.30.10 removed
May  9 11:03:30 sd3031 avahi-daemon[3924]: Leaving mDNS multicast group on interface eth0.IPv4 with address 172.16.30.31.
May  9 11:03:30 sd3031 Keepalived_vrrp[5464]: Netlink reflector reports IP 172.16.30.31 removed
May  9 11:03:30 sd3031 Keepalived_vrrp[5464]: Netlink reflector reports IP 172.16.30.10 removed
May  9 11:03:30 sd3031 avahi-daemon[3924]: Joining mDNS multicast group on interface eth0.IPv4 with address 172.16.30.10.
May  9 11:03:30 sd3031 avahi-daemon[3924]: IP_ADD_MEMBERSHIP failed: No such device
May  9 11:03:30 sd3031 avahi-daemon[3924]: Withdrawing address record for 172.16.30.10 on eth0.
May  9 11:03:30 sd3031 avahi-daemon[3924]: Interface eth0.IPv4 no longer relevant for mDNS.
May  9 11:03:30 sd3031 Keepalived_vrrp[5464]: Kernel is reporting: interface eth0 DOWN
May  9 11:03:30 sd3031 Keepalived_vrrp[5464]: VRRP_Instance(VI_1) Entering FAULT STATE
May  9 11:03:30 sd3031 Keepalived_vrrp[5464]: VRRP_Instance(VI_1) removing protocol VIPs.
May  9 11:03:30 sd3031 Keepalived_vrrp[5464]: Netlink: error: Cannot assign requested address, type=(21), seq=1494298989, pid=0
May  9 11:03:30 sd3031 Keepalived_vrrp[5464]: VRRP_Instance(VI_1) Now in FAULT state
May  9 11:03:30 sd3031 kernel: bnx2 0000:0b:00.0: eth0: using MSIX
May  9 11:03:32 sd3031 Keepalived_healthcheckers[5463]: TCP socket bind failed. Rescheduling.
May  9 11:03:33 sd3031 kernel: bnx2 0000:0b:00.0: eth0: NIC Copper Link is Up, 1000 Mbps full duplex
May  9 11:03:34 sd3031 Keepalived_healthcheckers[5463]: TCP socket bind failed. Rescheduling.
May  9 11:03:34 sd3031 Keepalived_healthcheckers[5463]: TCP socket bind failed. Rescheduling.
May  9 11:03:34 sd3031 Keepalived_healthcheckers[5463]: Netlink reflector reports IP 172.16.30.31 added
May  9 11:03:34 sd3031 Keepalived_vrrp[5464]: Netlink reflector reports IP 172.16.30.31 added
May  9 11:03:34 sd3031 avahi-daemon[3924]: New relevant interface eth0.IPv4 for mDNS.
May  9 11:03:34 sd3031 avahi-daemon[3924]: Joining mDNS multicast group on interface eth0.IPv4 with address 172.16.30.31.
May  9 11:03:35 sd3031 avahi-daemon[3924]: Registering new address record for 172.16.30.31 on eth0.
May  9 11:03:37 sd3031 Keepalived_vrrp[5464]: Kernel is reporting: interface eth0 UP
May  9 11:03:37 sd3031 Keepalived_vrrp[5464]: VRRP_Instance(VI_1) Transition to MASTER STATE
May  9 11:03:37 sd3031 Keepalived_vrrp[5464]: VRRP_Instance(VI_1) Entering MASTER STATE
May  9 11:03:37 sd3031 Keepalived_vrrp[5464]: VRRP_Instance(VI_1) setting protocol VIPs.
May  9 11:03:37 sd3031 Keepalived_vrrp[5464]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 172.16.30.10
May  9 11:03:37 sd3031 Keepalived_healthcheckers[5463]: Netlink reflector reports IP 172.16.30.10 added
May  9 11:03:37 sd3031 avahi-daemon[3924]: Registering new address record for 172.16.30.10 on eth0.
May  9 11:03:37 sd3031 Keepalived_vrrp[5464]: Netlink reflector reports IP 172.16.30.10 added
backup_message-log
May  9 11:03:35 sd3032 Keepalived_vrrp[26277]: VRRP_Instance(VI_1) Transition to MASTER STATE
May  9 11:03:35 sd3032 Keepalived_vrrp[26277]: VRRP_Instance(VI_1) Entering MASTER STATE
May  9 11:03:35 sd3032 Keepalived_vrrp[26277]: VRRP_Instance(VI_1) setting protocol VIPs.
May  9 11:03:35 sd3032 Keepalived_vrrp[26277]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 172.16.30.10
May  9 11:03:35 sd3032 Keepalived_vrrp[26277]: Netlink reflector reports IP 172.16.30.10 added
May  9 11:03:35 sd3032 Keepalived_healthcheckers[26275]: Netlink reflector reports IP 172.16.30.10 added
May  9 11:03:35 sd3032 avahi-daemon[3963]: Registering new address record for 172.16.30.10 on eth0.
May  9 11:03:40 sd3032 Keepalived_vrrp[26277]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 172.16.30.10
May  9 11:04:05 sd3032 Keepalived_vrrp[26277]: VRRP_Instance(VI_1) Received higher prio advert
May  9 11:04:05 sd3032 Keepalived_vrrp[26277]: VRRP_Instance(VI_1) Entering BACKUP STATE
May  9 11:04:05 sd3032 Keepalived_vrrp[26277]: VRRP_Instance(VI_1) removing protocol VIPs.
May  9 11:04:05 sd3032 Keepalived_healthcheckers[26275]: Netlink reflector reports IP 172.16.30.10 removed
May  9 11:04:05 sd3032 Keepalived_vrrp[26277]: Netlink reflector reports IP 172.16.30.10 removed
May  9 11:04:05 sd3032 avahi-daemon[3963]: Withdrawing address record for 172.16.30.10 on eth0.
VIP正常漂移

转载于:https://blog.51cto.com/phospherus/1923725

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