From Friedrich.Leisch@ci.tuwien.ac.at  Thu Nov  8 11:44:03 2001
From: Friedrich.Leisch@ci.tuwien.ac.at (Friedrich.Leisch@ci.tuwien.ac.at)
Date: Thu, 8 Nov 2001 12:44:03 +0100
Subject: [Rd] devel snapshots on CRAN
Message-ID: <15338.28675.632530.668158@galadriel.ci.tuwien.ac.at>


We are currently investigating our http and ftp logs in order to get a
hold on which parts of CRAN are rather popula and which not (because
our computing center wants to know if all the traffic generated by
CRAN is really necessary).

One thing we stumbled about that generates a lot of traffic are the
daily snapshots of the R sources, which are mirrored to all CRAN nodes
daily: the mirroring seems to generate much more traffic than there
are actual downloads (at least from our site). There are 3 versions
each saved as .tar.gz and .tar.gz making a daily total of approx. 30MB
CHANGING EVERY DAY.

Downloads seem to be more in the order of once per week.

Question: Would you see it as a strong loss if these were available
only from 1 or sites rather than every CRAN node? Please respond in
private if so, I'll post a summary to the list.

This does not affect the sources of R releases (which get downloaded
very often), only the daily snapshots from the directory
$CRAN/src/devel.

Best,
Fritz




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[Rd] devel snapshots on CRAN
Friedrich.Leisch@ci.tuwien.ac.at