|> One way of shifting that cost further is for the advertising site to |> proactively issue updates based on historical requests. | |Are you suggesting that if the advertising site does this, the caching |site could toss out cache entries more casually, because they are |likely to be refreshed? I wonder if proactive updates will increase |both the cost of caching and the cost of processing updates even more, |because updates will be sent and processed even when they are not |needed.
No, I'm saying that having the advertising site issue proactive updates might be cheaper (on the caching side) than having the caching site send refresh requests. The caching site might want to have the ability to terminate the proactive updates. Over the lifetime of a non-trivially lived cache entry, this could shift more of the burden to the advertiser. Tony -- to unsubscribe send a message to [EMAIL PROTECTED] with the word 'unsubscribe' in a single line as the message text body. archive: <http://psg.com/lists/rrg/> & ftp://psg.com/pub/lists/rrg
