[Linux-cluster] LVS, not so fun today...

David Brieck Jr. dbrieck at gmail.com
Thu Nov 9 19:46:12 UTC 2006


On 11/9/06, isplist at logicore.net <isplist at logicore.net> wrote:
> Hi and thank you for helping.
>
> I'll post all I can think of. I have IPTables turned off, SElinux disabled so
> it's not a firewall issue. I can also post my lvs.cf if that will help.
>
> > Can you post the results of "arping 192.168.1.150"? You might need to
> > specify the interface and source IP, see the man page for more info.
>
> Sure, ping form where? All machines on my network see 192.168.1.150 which is
> the VIP on the load balancer. I'm back to Piranha today.
>

Do the ARP ping from anywhere. It might not be related at all to your
problem but ARP problems will cause you no end of headaches with
direct routing. The output should look something like this:

arping -I eth2  -s 10.1.1.100 10.1.1.125
ARPING 10.1.1.125 from 10.1.1.100 eth2
Unicast reply from 10.1.1.125 [00:13:72:5D:FA:F1]  0.722ms
Unicast reply from 10.1.1.125 [00:13:72:5D:FA:F1]  0.785ms
Unicast reply from 10.1.1.125 [00:13:72:5D:FA:F1]  0.685ms
Unicast reply from 10.1.1.125 [00:13:72:5D:FA:F1]  0.679ms
Unicast reply from 10.1.1.125 [00:13:72:5D:FA:F1]  0.723ms
Unicast reply from 10.1.1.125 [00:13:72:5D:FA:F1]  0.626ms
Unicast reply from 10.1.1.125 [00:13:72:5D:FA:F1]  0.732ms
Unicast reply from 10.1.1.125 [00:13:72:5D:FA:F1]  0.790ms
Unicast reply from 10.1.1.125 [00:13:72:5D:FA:F1]  0.690ms
Unicast reply from 10.1.1.125 [00:13:72:5D:FA:F1]  0.663ms
Sent 9 probes (1 broadcast(s))
Received 10 response(s)

If you have different MAC addresses responding then you've got issues.

Also, from your Load Balancer, please post the output of "curl -i
http://192.168.1.92" and the other real server IPs you have (93 and
94).




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