Re: [squid-users] acl and cache

2006/5/3, Henrik Nordstrom <henrik@henriknordstrom.net>:
> ons 2006-05-03 klockan 10:35 +0200 skrev Aur�lien Bras:
>
> > "If you add a no_cache rule after Squid has been running for a while,
> > the cache may contain
> > some objects that match the new rule. Prior to Squid Version 2.5,
> > these previously cached
> > objects might be returned as cache hits. Now, however, Squid purges
> > any cached response for a request that matches a no_cache rule."
>
> Yes, but this doesn't mean the cached content will be purget. Only that
> requests matching your no_cache rules will not look into the cache and
> their result will not be cached.
>
> Other requests for the same URL but not matching your no_cache rules
> will be cached as usual.
>
> > First request : MISS ok.
> > Second request : REFRESH_HIT on FRONT and REFRESH_MISS on BACK
> >
> > Not good
>
> Why?
>
My object is STALE, the refresh should be good and make a HIT, but
BACK make un MISS, is mean that the object is dowloaded another time,
am I wrong ?

> > , after disable : #no_cache deny BACK
> >
> > Thirst request REFRESH_HIT on FRONT and REFRESH_HIT on BACK
> >
> > It's ok but BACK can put new objects in cache :(
>
> Why is this better?
>
Because the object isn't dowloaded, I save the bandwitch.

> Regards
> Henrik
>
>
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Received on Wed May 03 2006 - 03:37:28 MDT