|
There are one LVS(RedHat 9.0, lb0) and two real servers(RedHat 7.2:rs1, rs2).
When I reboot the LVS and start the ipvsadm(DRT mode), the clients can connect
to real server rotationally (rs2->rs1->rs2).
# =========start procedure:====================================
echo 0 > /proc/sys/net/ipv4/ip_forward
echo 1 > /proc/sys/net/ipv4/conf/all/send_redirects
echo 1 > /proc/sys/net/ipv4/conf/default/send_redirects
echo 1 > /proc/sys/net/ipv4/conf/eth0/send_redirects
# ***********************************************
# * 192.168.15.9 : virtual IP of Load Balancer *
# * 192.168.15.25: real server # 1 *
# * 192.168.15.26: real server # 2 *
# ***********************************************
/sbin/ifconfig eth0:0 192.168.15.9 broadcast 192.168.15.9 netmask
255.255.255.255
/sbin/route add -host 192.168.15.9 dev eth0:0
/sbin/ifconfig eth0:0
/sbin/ipvsadm -C
/sbin/ipvsadm -A -t 192.168.15.9:80 -s rr
/sbin/ipvsadm -a -t 192.168.15.9:80 -r 192.168.15.25 -g -w 1
/sbin/ipvsadm -a -t 192.168.15.9:80 -r 192.168.15.26 -g -w 1
/sbin/ipvsadm
=================================================================================
[root@bl0 download]# ipvsadm
IP Virtual Server version 1.0.9 (size=65536)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight ActiveConn InActConn
TCP 192.168.15.9:http rr
-> 192.168.15.26:http Route 1 0 0
-> 192.168.15.25:http Route 1 0 0
=================================================================================
[root@bl0 root]# ipvsadm -Lc
IPVS connection entries
pro expire state source virtual destination
TCP 00:43 SYN_RECV 192.168.15.185:1992 192.168.15.9:http 192.168.15.26:http
TCP 01:30 FIN_WAIT 192.168.8.1:1457 192.168.15.9:http 192.168.15.25:http
TCP 01:30 FIN_WAIT 192.168.8.1:1456 192.168.15.9:http 192.168.15.26:http
=================================================================================
When there are not any connection on 'ipvsadm -Lc', I connect to
192.168.15.9(VIP)
from IE. And get the home page of 192.168.15.26. I tried from other PC to
connect
to 192.168.15.9 and display the home page of 192.168.15.26 also. It can't
connect
to 192.168.15.25 and then 192.168.15.26 next time. It always only display the
home
page of 192.168.15.26. I have put different home page in 192.168.15.25 & .26.
I deleted the 'ipvsadm' task by 'ipvsadm -C'. But I still can use IE to connect
to
192.168.15.9 and display the home page of 192.168.15.26 also.
Whick setup procedure should be moidified to fix this problem? LVS can rotate
between
real servers at the first time, then it doesn't after a while.
|
