[squid-users] icap result caching in squid

[Alex Rousskov]

On 11/29/19 12:20 PM, Darren Breeze wrote:

> Some quick question about icap result caching in squid.
> 
> Does the returned Expires header control how long squid will cache the
> result (for both a req and resp mod)?
> 
> Are the values that are cached keyed to the queried URL or is it cached
> per user / url?

Squid only supports pre-cache vectoring points. Thus, bugs
notwithstanding, post-ICAP headers should be treated (for caching
purposes) as if Squid received the same adjusted HTTP message directly
from an HTTP agent, and there were no ICAP modifications at all.

The above statement does not answer your question, but it changes that
question from "How ICAP-set X affects caching?" to "How X affects
caching?" -- a question that you may already know the answer to or, if
you do not, a question that others on the list may be able to answer
better or faster than I currently can.


HTH,

Alex.