Re: The cache deny QUERY change... partial rollback?

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Henrik Nordstrom wrote:
> After analyzing a large cache with significantly declining hit ratio
> over the last months I have came to the conclusion that the removal of
> cache deny QUERY can have a very negative impact on hit ratio, this due
> to a number of flash video sites (youtube, google, various porno sites
> etc) who include per-view unique query parameters in the URL and
> responding with a cachable response.
>
> Because of this I suggest that we add back the cache deny rule in the
> recommended config, but leave the refresh_pattern change as-is.
>
> People running reverse proxies or combating these cache busting sites
> using store rewrites know how to change the cache rules, while many
> users running general proxy servers are quite negatively impacted by
> these sites if caching of query urls is allowed.

Having a single "recommended config" seems dubious: I for one never
run squid as a forward proxy, for instance. We should probably split
apart the default / recommended "forward" and "reverse" configurations
(which are just starting points, right?) and document how to tell which
one to start with.
////////

Tres.
- --
===================================================================
Tres Seaver +1 540-429-0999 tseaver_at_palladion.com
Palladion Software "Excellence by Design" http://palladion.com
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Received on Mon Dec 01 2008 - 16:00:59 MST