Re: [squid-users] Refresh pattern

refresh_pattern is used to calculate the TTL of objects not having an
explicit expiry time set by the origin server.

min is the minimum age assigned by this heuristics

max is the maxium age assigned by this heuristics

percent is a percentage of the objects modification age (Date -
Last-Modified).

Objects having an explicit expiry time set by the server are not
concerned with refresh_pattern unless you use one of the hack options
to override what the server says.

Using any of the hack options for overriding the HTTP specifications,
or a min age other than 0 is not recommended unless you are certain
you can accept the effects. The effect can easily include caching of
content intended to be private to specific users when the site is
using cookies or similar user identification methods and don't tell
in the response that the reply is user private. This problem can
commonly be seen for example with PHP based sites when having a too
agressive refresh_pattern setting.

Regards
Henrik Nordström

On Sunday 12 May 2002 05:13, schazad choudary wrote:
> This time i need a reall help from u,I am stuc with my
> bandwidth ,
>
> I am setting up refresh pattern to save my bandwidth
> ,i am not much concern if some of the objecs are
> outdated.But still i am not clear in concept after
> reading agiain and agin teh faqs and seraching from
> differnt sites , i am not clear about the percentage.
> tell me please if i am wrong.
>
>
> min is the simple time before that squid will not ask
> for fresh copy of saved object
>
> maximum is the time after that squid will must ask for
> fresh copy. right ?
>
> what actully the percentage do ???
>
> 2nd :I am running Isp network wich option is better
> for me to use please please specify one which is most
> commonly used.
>
> override-expire
> override-lastmod
> reload-into-ims
> ignore-reload
> I will be too much thank full to u people .
> regards
> Schahzad Zafar
>
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