Re: old? heuristic in refreshIsCachable()

mån 2003-04-07 klockan 10.15 skrev Robert Collins:
> What prompted the heuristic of not caching responses that expire in
> under 60 seconds?

This only applies to objects which cannot be re-validated.

The rule is because in a proxy the hit ratio for these objects is very
low, close to none.

> I ask because in rproxy scenarios, with surrogate-control headers, it's
> quite common to give the surrogate (squid) a low expiry, to ensure
> freshness to new visitors, while giving clients a high expiry, to reduce
> surrogate load.

In reverse proxies this rule can obviously be changed to 1 second.

-- 
Henrik Nordstrom <hno@squid-cache.org>
MARA Systems AB, Sweden