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On Mon, 11 Jun 2001, Paul Baker wrote:
> Alois Treindl wrote:
>
> > I have a stupid question (I know, I should RTFM):
> > can I access a load balanced http service in a load-balanced way by
> > processes runnign on the director itself?
> >
>
> Simple answer...no, you can't.
> Long answer...You don't want to anyway. 1. It won't fully test the I/O
> network thoroughput of your load-balancer. 2. Your load-testing software
> will put an artificial cpu load on the load-balancer in the process
> further skewing the results.
My web service is very much computation heavy; I can saturate
my LVS which consists of 4 dual-CPU servers with 50 requests/second
easily which create about 50x20 kbyte = 1 Mbyte/sec data volume.
The load on the director is non-measurably close to zero, even with
LVS_NAT.
But with my link bandwidth from my office/home client which is only
512 kbit/sec (64 kbyte/sec) I cannot run this test.
So: I do indeed want to run this from the director.
I have not access to another machine with sufficiently high-speed
connectivity. The LVS itself is on a 100-mbit link to kpnQwest's
Euro-fiber link and fast enough, but difficult to test for me.
Alois
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