ipvsadm and kernel 2.2.22 and apache load balancing

[Marc-Christian Petersen <m.c.p@xxxxxxx>]

Hi there,

first, I am completely new to LVS :-)

I want to set up easy and simple Apache Load Balancing. So I patched my 2.2.22 
kernel with the latest patch available for 2.2.xx, compiled ipvsadm 1.15 and 
did the following:

fw-rot:~# ipvsadm -L
IP Virtual Server version 1.0.8 (size=4096)                    
Prot LocalAddress:Port Scheduler Flags                         
  -> RemoteAddress:Port          Forward Weight ActiveConn InActConn
fw-rot:~# ifconfig eth1:1 10.0.0.200 netmask 255.255.255.0 up
fw-rot:~# ifconfig eth1:1
eth1:1    Link encap:Ethernet  HWaddr 00:02:B3:B9:63:A3  
          inet addr:10.0.0.200  Bcast:10.255.255.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:4 Base address:0xb000 

fw-rot:~# echo "1" > /proc/sys/net/ipv4/ip_forward
fw-rot:~# echo "1" > /proc/sys/net/ipv4/ip_always_defrag
fw-rot:~# ipchains -F
fw-rot:~# ipchains -A forward -j MASQ -s 10.0.1.0/24 -d 0.0.0.0/0
fw-rot:~# ipvsadm -C
fw-rot:~# ipvsadm -A -t 10.0.0.200:80 -s wlc

fw-rot:~# lsmod
Module                  Size  Used by    
ip_vs_wlc               1652   1  (autoclean)

fw-rot:~# ipvsadm -a -t 10.0.0.200:80 -r 10.0.1.10:80 -w 50 -m
fw-rot:~# ipvsadm -a -t 10.0.0.200:80 -r 10.0.1.11:80 -w 50 -m
setsockopt failed: File exists

fw-rot:~#  ^^^ ERR WHY?

fw-rot:~# ipvsadm -L -n
IP Virtual Server version 1.0.8 (size=4096)                    
Prot LocalAddress:Port Scheduler Flags                         
  -> RemoteAddress:Port          Forward Weight ActiveConn InActConn
TCP  10.0.0.200:80 wlc
  -> 0.80.0.0:0                  Masq    0      0          0         
fw-rot:~# 

the last output from ipvsadm looks really strange to me.

All I want is load balancing between 3 apache servers. Connects should come up 
on 10.0.0.200 and should go to 10.0.1.10, 10.0.1.11 and 10.0.1.12

What am I doing wrong? ... I've checked also the 2.4 patch (I've included the 
latest IPVS for sure in WOLK :-) ... and there it's doing fine. But I have to 
set this up with a 2.2 kernel.

Many thnx for your help!!

Selected kernel options for IPVS are:

[*] IP: masquerading virtual server support (EXPERIMENTAL)
[*]   IP virtual server debugging
(12)   IP masquerading VS table size (the Nth power of 2)
<M>   IPVS: round-robin scheduling
<M>   IPVS: weighted round-robin scheduling
<M>   IPVS: least-connection scheduling
<M>   IPVS: weighted least-connection scheduling
<M>   IPVS: locality-based least-connection scheduling
<M>   IPVS: locality-based least-connection with replication scheduling

ciao, Marc