There are subscription services that do this with some level of intelligence. They aren't terribly cheap, but they probably provide a higher hit ratio than what you're proposing. Cidera is one such service, and I think most of their competitors have left the field. (Cidera doubled their rates about a year ago, and so I no longer know anyone using the service--I can't say what the service is like these days.)
You might consider just using a more aggressive caching policy, to increase your hit ratios...Even increasing the default refresh_pattern to use 50% instead of 20% for 'guessed' expiry makes a noticeable different in hit rates without a huge freshness drop.
If you still need what you're asking for, you'll need to do some coding. It isn't a trivial 'feature'.
chuckdutrow wrote:
I have just added a satellite link to my network, I am using squid to cache http requests for my large network, I want to know if anyone knows how I can conf squid to use the satellite link to just constantly update my cache. I want this to work non stop, I dont want any of my users to ever hit a "stale" page. Also I currently have the cache updating via T1, I dont want the T1 to be used unless a new unseeded page is requested then once the initial page is seeded I want the satellite to constantly update it as well.
Thanks for your help!!
Chuck
-- Joe Cooper <[EMAIL PROTECTED]> Web caching appliances and support. http://www.swelltech.com
