Re: [squid-users] Alteon + squid

Hi Wei,

I am currently doing exactly what you are speaking of with what Alteon calls
"URL Hashing". It is a Layer 7 function that terminates the connection on
the Alteon and hands off the connection to the squid box based on the URL.

Can be done, and if you need to do it transparently use redirection filters.

Thanks
Warrick FitzGerald
Senior Systems Engineer
LiveTechnology Inc.

----- Original Message -----
From: "Wei Keong" <chooweikeong@pacific.net.sg>
To: "Mark Tinka" <aknit44@yahoo.co.uk>
Cc: <squid-users@squid-cache.org>
Sent: Wednesday, July 17, 2002 4:11 AM
Subject: Re: [squid-users] Alteon + squid

> I suppose you are referring to having duplicate objects in the layer 1
> squid servers? Is fine actually, since the layer 1 squid dont cache any
> objects, just forward requests and replies.
>
> Our concern is to achieve higher hit rate in the layer 2 squid servers.
> If it is beneficial, we can further separate the layer 2 squid servers to
> smaller clusters to handle specific domain range.
>
> Rgds,
> Wei Keong
>
>
> On Wed, 17 Jul 2002, [iso-8859-1] Mark Tinka wrote:
>
> > just a thought i've developed... when u are using the
> > Alteon load balancer, how do u ensure that u don't
> > have duplicate information across your cache
> > servers.... do u do this by using Squid cache-peering
> > feature... this is important, as u wouldn't want to
> > have the same object on each cache server... as u
> > maximise efficiency and hit rate...
> >
> > AKNIT
> >
> >
> > --- Wei Keong <chooweikeong@pacific.net.sg> wrote: >
> > Hi,
> > >
> > > After trying for the past few days, seems like I've
> > > no luck with the
> > > Alteon domain redirection/load balancing.
> > >
> > > Our current implementation is such that all Squid
> > > boxes (>10) are load
> > > balanced by the Alteon. We are thinking of using
> > > Squid to forward requests
> > > to separate Squid pool based on domain.
> > >
> > >
> > > | Alteon |
> > > / \
> > > |Squid| |Squid| layer 1
> > > | \ / |
> > > | \ / |
> > > | / \ |
> > > | / \ |
> > > |Squid| |Squid| layer 2
> > > .com !.com
> > >
> > >
> > > Essentially, the first layer Squid will only examine
> > > requests and forward
> > > to second layer Squid. However, we are yet to test
> > > the load and
> > > latency of deploying this architecture. And,
> > > ultimately, we need to
> > > find out whether this will bring significant
> > > benefits (hit rate).
> > >
> > > So, squid guru, any input on such an implementation?
> > >
> > >
> > > Rgds,
> > > Wei Keong
> > >
> > >
> > >
> > > On Mon, 15 Jul 2002, Wei Keong wrote:
> > >
> > > > Ya, have done testing based on the examples in the
> > > documentation. But, it
> > > > doesn't seem to work.
> > > >
> > > > Understand that it will not affect Squid in
> > > anyway, just want to see if
> > > > anyone has more info on Alteon.
> > > >
> > > > I am also looking into using CARP to do url load
> > > balancing/redirection
> > > > (eg. separate .com and !.com). However, I am not
> > > sure if it will be bottle
> > > > neck for request processing. Do you know of
> > > successful implementation of
> > > > large-scale CARP? Besides, L4-7 switch and CARP,
> > > is there any way to do
> > > > url load balancing/redirection?
> > > >
> > > > Rgds,
> > > > Wei Keong
> > > >
> > > >
> > > > On Sun, 14 Jul 2002, Henrik Nordstrom wrote:
> > > >
> > > > > The Alteon documentation should contain quite
> > > detailed descriptions of
> > > > > how it works and how to set it up.
> > > > >
> > > > > Note: This does not really affect Squid in any
> > > manner. Is just a
> > > > > method to get the requests to the correct Squid
> > > server.
> > > > >
> > > > > Regards
> > > > > Henrik
> > > > >
> > > > >
> > > > > On Sunday 14 July 2002 17.02, Wei Keong wrote:
> > > > > > Hi,
> > > > > >
> > > > > > I am working on url load balancing squid boxes
> > > using Alteon
> > > > > > AceDirector. Unfortunately, there isn't much
> > > resources/docs
> > > > > > available.
> > > > > >
> > > > > > Has anyone tried Alteon url load balancing
> > > before? Is there any
> > > > > > forum/discussion group on this? Where can i
> > > find more info?
> > > > > >
> > > > > > Thanks,
> > > > > > Wei Keong
> > > > >
> > > >
> > > >
> > >
> >
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Received on Wed Jul 17 2002 - 06:26:04 MDT