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On Fri, May 18, 2007 at 03:00:34PM +0200, Mark de Vries wrote:
>
> Hi guys,
>
> Anybody ever thought about a "least bandwidth" scheduler?
>
> We use lvs for (amongst others) incomming email. With all the spam and
> virus scanning beeing done I think there is (might be) a strong
> relation between the server load and the amount of inbound bps. Or at
> least a stronger relation than with any of the currently available
> schedulers.
>
> I've only just thought about this and not given it a great deal of
> thought yet. I thought I'd first ask the list to see if maybe the
> idea has been discussed before?
I guess that as lvs already keeps some rate information for each
real server (on a per virtual-service) basis, you could use that data
to implement your idea. However it wouldn't take into account any other
packets that the box might be handling.
This probably leads you to needing to get feedback from each real-server
on how busy it is. Which is along the lines of what feedbackd does.
(Though I'm not sure what state feedbackd is in.)
http://ozlabs.org/~jk/projects/feedbackd/howto/index.html
--
Horms
H: http://www.vergenet.net/~horms/
W: http://www.valinux.co.jp/en/
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