Keepalived基本问题定位方法

Keepalived基本问题定位方法

1，检查配置文件

2，  查看lvs生效配置

[root@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：

[root@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链接状态信息

[root@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

[root@localhost ~]# sysctl -a |grepnet.ipv4.ip_forward

[root@localhost ~]# sysctl -a |greparp_ignore

[root@localhost ~]# sysctl -a |greparp_announce

9，  查看系统日志

[root@localhost ~]# tail /var/log/messages