lvs+keepalived，执行ipvsadm查不到real server 地址

hanool 发表于 2012-11-15 14:50

各位大侠
在虚拟环境初次使用lvs+keepalived。配置之后发现，工作不正常。

VIP：192.168.75.253
LVS1(master) 192.168.75.135
LVS2(backup) 192.168.75.136
RealServer    192.168.75.142 （目前只使用一个Real，应该可以吧？)

配置
主：
cat /etc/keepalived/keepalived.conf
global_defs {
router_id LVS_DEVEL_MASTER
}

vrrp_sync_group VGM {
   group {
         VI_1
   }
}

vrrp_instance VI_1 {
state MASTER
interface eth0
lvs_sync_daemon_inteface eth0
virtual_router_id 51
priority 100
advert_int 1
authentication {
   auth_type PASS
   auth_pass 1111
}
virtual_ipaddress {
   192.168.75.253
}
}

virtual_server 192.168.75.253 80 {
delay_loop 6
lb_algo rr
lb_kind DR
nat_mask 255.255.255.0
persistence_timeout 50
protocol TCP

real_server 192.168.75.142 80 {
   weight 100
   TCP_CHECK {
         connect_timeout 3
         nb_get_retry 3
         delay_before_retry 3
         connect_port 80
   }
}
}

备：
cat /etc/keepalived/keepalived.conf
global_defs {
router_id LVS_DEVEL_BACKUP
}

vrrp_sync_group VGM {
   group {
         VI_1
   }
}

vrrp_instance VI_1 {
state BACKUP
interface eth0
lvs_sync_daemon_inteface eth0
virtual_router_id 51
priority 80
advert_int 1
authentication {
   auth_type PASS
   auth_pass 1111
}
virtual_ipaddress {
   192.168.75.253
}
}

virtual_server 192.168.75.253 80 {
delay_loop 6
lb_algo rr
lb_kind DR
nat_mask 255.255.255.0
persistence_timeout 50
protocol TCP

real_server 192.168.75.142 80 {
   weight 1
   TCP_CHECK {
         connect_timeout 3
         nb_get_retry 3
         delay_before_retry 3
         connect_port 80
   }
}

}

查看keepalived安装是正常：
ps -ef | grep keep
root 20917 10 13:52 ?    00:00:00 keepalived -D
root 20918 209170 13:52 ?    00:00:00 keepalived -D
root 20919 209170 13:52 ?    00:00:00 keepalived -D
root 2139621230 14:49 pts/0 00:00:00 grep keep

但是，执行
ipvsadm
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port       Forward Weight ActiveConn InActConn
TCP192.168.75.253:http rr persistent 50

后面什么都没有了，按理说应该有REal ip的呀。
请问是什么原因，谢谢！

split_two 发表于 2012-11-15 17:29

你的real上启动脚本了吗？

hanool 发表于 2012-11-16 11:49

回复 2# split_two

启动了啊

#!/bin/bash

#description : start realserver

VIP=192.168.75.253

/etc/rc.d/init.d/functions

case "$1" in
start)
echo " start LVS of REALServer"
/sbin/ifconfig lo:0 $VIP broadcast $VIP netmask 255.255.255.255 up

echo "1" >/proc/sys/net/ipv4/conf/lo/arp_ignore
echo "2" >/proc/sys/net/ipv4/conf/lo/arp_announce
echo "1" >/proc/sys/net/ipv4/conf/all/arp_ignore
echo "2" >/proc/sys/net/ipv4/conf/all/arp_announce
;;
stop)
/sbin/ifconfig lo:0 down
echo "close LVS Directorserver"
echo "0" >/proc/sys/net/ipv4/conf/lo/arp_ignore
echo "0" >/proc/sys/net/ipv4/conf/lo/arp_announce
echo "0" >/proc/sys/net/ipv4/conf/all/arp_ignore
echo "0" >/proc/sys/net/ipv4/conf/all/arp_announce
;;
*)
echo "Usage: $0 {start|stop}"
exit 1
esac

hanool 发表于 2012-11-16 15:37

系统日志里面有
。。。
Nov 16 15:23:59 p-lvs-1 Keepalived_healthcheckers: Activating healthchecker for service :80
Nov 16 15:24:00 p-lvs-1 Keepalived_vrrp: VRRP_Instance(VI_GW) Transition to MASTER STATE
Nov 16 15:24:00 p-lvs-1 Keepalived_healthcheckers: TCP connection to :80 failed !!!
Nov 16 15:24:00 p-lvs-1 Keepalived_healthcheckers: Removing service :80 from VS :80
Nov 16 15:24:00 p-lvs-1 Keepalived_healthcheckers: Lost quorum 1-0=1 > 0 for VS :80
。。。
是什么原因呢？

split_two 发表于 2012-11-17 15:37

连接142的80端口失败！！！你可以参考我这个帖子看看！
http://blog.chinaunix.net/uid-23916356-id-3410278.html

hanool 发表于 2012-11-19 10:27

回复 5# split_two

谢谢！

split_two 发表于 2012-11-19 21:58

回复 6# hanool

问题解决了吗？

hanool 发表于 2012-12-18 11:15

回复 7# split_two

嗯，解决了。后台进程忘记启动了。。。
你有类似的问题？

xiaohaier2008 发表于 2014-03-29 22:12

什么后台进程没启动我也遇到这个问题了回复 8# hanool

haoyuezhuifeng 发表于 2015-08-20 09:39

ipvsadm
TCP192.168.75.253:http rr persistent 50
后面啥都没有，请问你是怎样解决的，求指教

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lvs+keepalived，执行ipvsadm查不到real server 地址