|
Daniil Sosonkin wrote:
>
> Hi all,
>
> I'm very new to LVS but managed to configure it on Mandrake 10 (kernel
> 2.6.3-7mdksmp, had precompiled IP Virtual Server version 1.1.8
> (size=4096) ). Its an LVS-TUN with weighted round robin. Configured as
> follows:
>
> ipvsadm -A -t 192.168.110.119:2004 -s wrr
> ipvsadm -a -t 192.168.110.119:2004 -r 192.168.110.115:2004 -i -w 1
> ipvsadm -a -t 192.168.110.119:2004 -r 192.168.110.114:2004 -i -w 1
>
> It works fine and schedules server equally as expected. But time to time
> it does something weird. All the connections are being redirected to one
> of the real servers.
I assume you're doing this from client(s) on the x.x.110.x network.
I suspect your VIP is not hidden. What is the MAC address of the VIP
as seen by a client (run `arp -a`) that is always connecting to the
one realserver? It should be the MAC address of eth0 on the director.
I expect you'll find it's the MAC address of eth0 of the realserver.
when you're stuck on the one realserver, if you're having the arp problem,
the counters output from ipvsadm won't increment either.
> I'm blindingly reading up on ARP issues, but I really simply don't
> understand it.
it wasn't easy for any of us either ;-), but your confidence at
parties will increase immeasurably once you understand it.
Joe
--
Joseph Mack PhD, High Performance Computing & Scientific Visualization
LMIT, Supporting the EPA Research Triangle Park, NC 919-541-0007
Federal Contact - John B. Smith 919-541-1087 - smith.johnb@xxxxxxx
|
