Re: [squid-users] Caching Expired Objects - One Small Step Forward

Hi All,

> Hi All,
> a small success:
> I have set a an apache2.2 server as a proxy without
> caching as a parent proxy to my squid. I pass my
> youtube video clips through this parent. The apache
> is
> on the same machine as the squid. Using the
> mod_header
> module in apache, I cleaned out all the worrisome
> headers in the the youtube clips and now squid
> caches
> them and produces hits.
>
> The only outstanding issue is youtube serves videos
> from random servers. I will therefore have to
> implement a redirection script so that if a video
> clip
> has already been cached, I will pick that one. I
> hope
> to work on that over the weekend.
>
> I sometimes get about 10% traffic to youtube so if I
> can get a descent HIT rate it will be significant to
> the overall performance of my squid. Thanks for the
> hand-holding, Henrik.
>
> Regards,
> solomon.

I promised an update: Following my using an apache
proxy as a parent to my squid for youtube videos, I
have setup jesred to rewrite my url's for videos
already in my cache. HIT rate has gradually moved from
about less than 3% to close to 30%. I hope it will
continue to increase with time as I get more videos in
my cache.

I have a script in crontab searching through store.log
 to update my jesred regex rules.

Things To Do:
Maintain my jesred rules with a script that will
expunge regex rules for expired objects.

Thanks, Now ready to deploy my squid for the whole
network within the next few days. Windowsupdate still
a headache though. Not found much that have been
helpful yet.

solomon.

>
>
> --- Henrik Nordstrom <henrik@henriknordstrom.net>
> wrote:
>
> > On ons, 2007-09-19 at 01:45 -0700, Solomon Asare
> > wrote:
> > > Hi Henrik,
> > > I have tried quite a lot, eg:
> > > refresh_pattern -i \.flv$ 10080 990%
> > > 999999 reload-into-ims ignore-no-cache
> > >
> > > It caches only those objects which have not
> > already
> > > expired that is with the right combinations of
> > > Last-Modified or ETag & minimum_expiry_time; as
> > you
> > > explained earlier.
> > >
> > > Any suggestion on a refresh_pattern to overcome
> > > (Last-Modified or ETag & minimum_expiry_time)
> > > limitation?
> >
> > Have you tried override-expire?
> >
> > What do use depends on what the response headers
> > look like.
> >
> > Regards
> > Henrik
> >
>
>
Received on Sun Oct 07 2007 - 04:20:22 MDT