On 03/12/2010 01:57 PM, Robert Nichols wrote: > On 03/12/2010 08:08 AM, Patrick O'Callaghan wrote: >> The yum fastestmirror plugin (yum-plugin-fastestmirror) claims to >> evaluate the speed of a bunch of repo mirrors and use the fastest one >> relative to the user's location. >> >> However AFAIK what it *actually* does is make a test connection to the >> to the candidate mirrors and order them according to response time, >> which in many cases is dominated by network latency, which can distort >> the results. For well-connected user machines in first-world countries >> it probably doesn't matter much, and may have the beneficial effect of >> spreading the load over a wider range of mirrors, but for those of us in >> a less privileged position it can matter a lot. Ironically, these are >> the cases where such an optimization could do the most good. >> >> A case in point: I live in Venezuela and on several recent occasions yum >> decided that my closest repo was in Puerto Rico, which as the packet >> flies is probably true. However the b/w I got as a result was around 2 >> or 3kbps. > > If there are particular hosts or domains you want to avoid, you can edit > /etc/yum/pluginconf.d/fastestmirror.conf and add an "exclude" line. > There is a commented-out sample exclude line at the bottom of that file: > > #exclude=.gov, facebook Is it guaranteed that the site listed at the beginning is being used for *all* downloads from the particular repo mirror? It wasn't clear (to me) if that site was being used for everything from that mirror, or if different mirrors were being chosen during the actual file downloads to help spread out the load.... I've seen some bizarre behavior at times where yum seems to switch mirrors. Particularly when a file cannot be found or a repo is not up-to-date. It makes me wonder that the site printed out at the beginning isn't necessarily the site being used for RPM downloads, so I was wondering how I could tell which mirror a particular download was being done from! Can someone please elaborate on the exact behavior of how yum uses the various mirrors for meta-files and RPMs to download (or even delta-RPMs). Thanks. -- Kevin J. Cummings kjchome@xxxxxxx cummings@xxxxxxxxxxxxxxxxxx cummings@xxxxxxxxxxxxxxxxxxxxxxx Registered Linux User #1232 (http://counter.li.org) -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
