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Re: Crawler Ettiquette
- From: Bob K
- Date: Wed Jan 23 15:40:31 2002
Er, I just re-read that, and now understand what you meant by c).
Sorry for the wasted bandwidth.
On Wed, Jan 23, 2002 at 03:29:38PM -0500, Bob K wrote:
> On Wed, Jan 23, 2002 at 02:35:17PM -0500, Deepak Jain wrote:
> > This information will be made available to research institutions and
> > other concerns.
> > c) Allow ISP's caches to sync with it.
> > ISPs who cache would have an advantage if they used the cache developed by
> > this project to load their tables, but I do not know if there is an
> > internet-wide WCCP or equivalent out there or if the improvement is worth
> > the management overhead.
> Assuming that the info will be made available in html format, the only
> thing you really need to do to achieve c) is to choose an appropriate
> value for the http-equiv="Expires" meta-tag when serving the info, and
> have a cron job at each ISP make a request for the info at some
> arbitrary time. This last step really isn't that useful unless there
> are points of congestion, or times when the servers are bogged down.
> The caches have to respect the Expires tag, though, and a broken clock
> can cause all sorts of fun on that end...
> Bob <email@example.com> | Please don't feed the sock puppet.
Bob <firstname.lastname@example.org> | Please don't feed the sock puppet.