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发表于 2012-02-07 17:24 |只看该作者 |正序浏览

本帖最后由 hackerwang 于 2012-02-13 20:07 编辑

最近在配置keepalived时出现一个问题，主备切换都没有问题，就是在检测后端的realserver WEB 失败，不管rs WEB 是否宕机都在ipvsadm -ln的命令中显示，导致访问出现无法打开页面。怎么才能将有问题的rs WEB主机自动踢出去!下面是keepalived.conf 的配置，给点意见：
# vi keepalived.conf
! Configuration File for keepalived

global_defs {
notification_email {
}
notification_email_from Alexandre.Cassen@firewall.loc
smtp_connect_timeout 30
router_id LVS_DEVEL
}

vrrp_instance VI_1 {
state MASTER
interface eth1
virtual_router_id 51
priority 100
advert_int 1
authentication {
      auth_type PASS
      auth_pass 1111
}
virtual_ipaddress {
      192.168.1.1
}
}

virtual_server 192.168.1.1 80 {
delay_loop 6
lb_algo wlc
lb_kind DR
persistence_timeout 60
protocol TCP

real_server 192.168.1.2 80 {
      weight 1
      TCP_CHECK {
         connect_timeout 3
         nb_get_retry 3
         delay_before_retry 3
         connect_port 80
      }
}
real_server 192.168.1.3 80 {
      weight 1
      TCP_CHECK {
         connect_timeout 3
         nb_get_retry 3
         delay_before_retry 3
         connect_port 80
      }
}
}

发现问题原因：当使用service keepalived start 启动keepalived时无法检测主机，当用keepalived -D时可以实现，
[root@LVS1 init.d]# service keepalived start
Starting keepalived:                                     [  OK  ]
[root@LVS1 init.d]# ps -ef |grep -i keepalived
root    17855    1  0 13:49 ?       00:00:00 keepalived -D
root    17856 17855  2 13:49 ?       00:00:00 keepalived -D
root    17869  2182  0 13:50 pts/0 00:00:00 grep -i keepalived
[root@LVS1 init.d]# service keepalived stop
Stopping keepalived:                                     [  OK  ]
[root@LVS1 init.d]# keepalived -D
[root@LVS1 init.d]# ps -ef |grep -i keepalived
root    17891    1  0 13:50 ?       00:00:00 keepalived -D
root    17892 17891  0 13:50 ?       00:00:00 keepalived -D
root    17893 17891  6 13:50 ?       00:00:00 keepalived -D
root    17896  2182  0 13:50 pts/0 00:00:00 grep -i keepalived
通过以上记录可以看出当用service启动时只有两个进程，当用keepalived -D启动有三个进程！正在看service下这个文件，有进展贴出来！