|
Joseph Mack wrote...
> > Different parts of the pages are requested by different realservers, and
> > hence different IP addresses.
>
> how don't they like it? What do you see/not see?
It gives an error saying...
"...For your security, we have disconnected you from internet banking due to
a period of inactivity..."
I have had caching issues with HSBC before, they seem to be a bit more
stringent than other sites.
If I send the requests through one of the squids on it's own it works fine,
so I can only assume it's because it is seeing fragmented requests, maybe
there is a keepalive component that is requested.
I'll go and try a few different schedulers starting with -dh.
Thanks,
Jezz.
>
> > How do I combat this? Is this what persistence does or is there a way
> of
> > making the realservers appear to all have the same IP address?
>
> one of the first uses of LVS was for squids and some effort has been
> put into making LVS work well with squids. Joe Cooper, an occassional
> responder on this mailing list has put some effort into educating
> us on the problems. The main problem interfacing
> LVS with squids is that once you have a hit in a squid, you want other
> clients
> to go to that squid for that hit. The squids can use ICP (?) to fetch
> the hit from each other but that is too slow, and you don't want
> the squids fetching from each other. Persistence was
> used initially, but it's clumsy. Tomas Proell then developed a
> scheduler, which always sent requests for the same url to the
> same realserver (after the first fetch from http://www.foo.com,
> any fetch to the same website, from the DOCROOT down, by
> any client, will be sent to the same realserver).
> There's some timeout value for this, on the assumption
> that pages expire after some time.
> Wensong was inspired by this to write the -dh sheduler.
>
> So change -rr (or whatever you're running) to -dh.
>
> Unlike a conventional LVS, infront of identical realservers,
> with a squid, the individual squids all develope different content.
>
> (This should be explained in more depth in the HOWTO.
> Most of the people setting up squids seemed to have talked
> to each other before they come to LVS and already know
> what to do. I'll get around to updating the HOWTO when I get time).
>
> Joe
>
> --
> Joseph Mack PhD, Senior Systems Engineer, Lockheed Martin
> contractor to the National Environmental Supercomputer Center,
> mailto:mack.joseph@xxxxxxx ph# 919-541-0007, RTP, NC, USA
|
