Problems with testing load with ab

[Horms]

On Sun, Nov 12, 2006 at 10:14:48PM -0800, Larry Ludwig wrote:
> Hi,
> 
> >From testing it appears that my load balance is working.
> I have LVS setup using ultramonkey and I am in the process of stress testing 2 web servers behind a LVS/DR setup.
> 
> >From using apachebench (ab) I get about half of the connections fail.  Sometimes the test doesn't even complete.  The testing is occurring on the LAN of the switch.  Any ideas why it would fail some of the time?  I don't get these errors if I test directly to the server IP.  Some times I get:

I suspect that either you have not dealt with the ARP problem
(are you using LVS-DR?) or your real servers can't cope with the
connections for some reason.

-- 
Horms
  H: http://www.vergenet.net/~horms/
  W: http://www.valinux.co.jp/en/