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Kees Hoekzema wrote:
>
> Hi Joseph,
> > I'm one of the people who think you shouldn't dynamically change the
> > weights of your realservers unless you've got a real good reason.
> The main reason for this is to swap out servers which are getting
> overloaded with requests or for instance a server administrator who
> compiles a new kernel locally ;-). Or, like we had recently, a server with
> some defective hardware who still served requests but with a very nasty
> responsetime. And of course to swap out servers who are totally dead.
this sounds more like automatic failout (weight = 0 or 1) than dynamic
adjusting of weigths
> > I know Jeremy Kerr did an honours project on this topic, so he's probably
> > looked into the control and feedback theory on the matter and knows more
> > about it than I do.
> Any chance of Jeremy reading this and tell us if we can find that project
> (or conclusions) online somewhere?
He hasn't been on the mailing list since he finished the project, at least
2yrs ago. However he still answers mail at redfishsoftware (see the HOWTO)
so you could write to him privately.
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
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