Re: [squid-users] cache refresh

From: Alex Rousskov <rousskov@dont-contact.us>
Date: Fri, 10 Aug 2001 22:40:40 -0600 (MDT)

On Sat, 11 Aug 2001, TomC wrote:

> Hi all,
> is it possbile to refresh the whole cache in non-peak hours by a script:
>
> grep all the url from the accesss_log
> then use a client -r -p 8080 -h host url
>
> Then, the cache will be updated automatically?

Yes, however:

        - many origin servers will not like your aggressive fetches
          and may block you
        - you will request many uncachable objects
        - you will reload objects that were cached and fresh
        - many reloaded objects will still expire after/while your
          script is running
        - you will get many errors because your script does not use
          custom headers such as authentication that real clients
          were using
        - this will create a lot of "extra" traffic on the network
        - in most cases, Squid's default behavior will be nearly
          optimal (or, at least, better than your script)

Alex.
Received on Fri Aug 10 2001 - 22:40:47 MDT

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