On Mon, 26 Oct 2009 21:05:55 +0000, Gavin McCullagh
<gavin.mccullagh_at_gcd.ie> wrote:
> On Sat, 08 Aug 2009, Amos Jeffries wrote:
>
>> In a school situation you will also find the collapsed_forwarding
>> features of Squid very useful. It can reduce/collapse a full classroom
>> worth of duplicate requests for the same lesson website, down to a set
>> of single requests to fetch the page once.
>
> I don't mean to be smart here but the feature page says:
>
> http://wiki.squid-cache.org/Features/CollapsedForwarding
>
> "To remedy this situation this patch adds a new tuning knob to
squid.conf,
> making Squid delay further requests while a cache revalidation or
cache
> miss is being resolved. This sacrifices general proxy latency in favor
> for
> accelerator performance and thus should not be enabled unless you are
> running an accelerator."
>
> So is collapsed forwarding generally a bad idea for a forward proxy?
"Generally" its has fewer benefits under forward than reverse proxies.
It shines under reverse-proxy where the same vcontent is hit frequently
and from many sources.
With forward-proxy its hit much less but can still improve speed for
popular websites (if cachable) and smooth out traffic volume bumps for
automatic updates of software.
In your case a classroom worth of students+teacher potentially hitting the
same websites at the same time for a class project.
Amos
Received on Mon Oct 26 2009 - 22:01:08 MDT
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