Keepalived基本问题定位方法

34yhtee

1，检查配置文件
2，  查看lvs生效配置
[iyunv@localhost ~]#ipvsadm -ln
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port          Forward Weight ActiveConn InActConn
TCP 192.168.230.100:80 rr
-> 192.168.230.12:80           Route   1      0         0        
-> 192.168.230.13:80           Route   1      0         0     
3，查看keepalived状态：
[iyunv@localhost keepalived]# servicekeepalived status
Redirecting to /bin/systemctl status  keepalived.service
keepalived.service - LVS and VRRP HighAvailability Monitor
  Loaded: loaded (/usr/lib/systemd/system/keepalived.service; enabled)
   Active: inactive (dead) since Thu 2016-08-25 11:21:06CST; 6s ago
# Active: inactive(dead)非活动状态
4，查看记录的日志
Redirecting to /bin/systemctl status  keepalived.service
Aug 25 11:46:23 localhost.localdomainKeepalived_vrrp[1480]: VRRP_Instance(VI_1) Received higher prio advert
Aug 25 11:46:23 localhost.localdomainKeepalived_vrrp[1480]: VRRP_Instance(VI_1) EnteringBACKUP STATE  #切换为备状态
Aug 25 11:46:23 localhost.localdomainKeepalived_vrrp[1480]: VRRP_Instance(VI_1) removing protocol VIPs.
Aug 25 11:46:23 localhost.localdomainKeepalived_healthcheckers[1477]: Netlink reflector reports IP 192.168.230.100removed
5，  查看vrrp报文，特别注意vid是否一致。

6，  查看接口状态
7，查看IPVS连接状态信息
[iyunv@localhost ~]# ipvsadm -lcn
IPVS connection entries
pro expire state       source             virtual            destination
TCP 01:56 FIN_WAIT    192.168.230.15:46655192.168.230.100:80 192.168.230.12:80
TCP 01:57 FIN_WAIT    192.168.230.15:46656192.168.230.100:80 192.168.230.13:80
8，查看接口属性
[iyunv@localhost ~]# sysctl -a |grepnet.ipv4.ip_forward
[iyunv@localhost ~]# sysctl -a |greparp_ignore
[iyunv@localhost ~]# sysctl -a |greparp_announce
9，  查看系统日志
[iyunv@localhost ~]# tail /var/log/messages