Thoughts and Questions On Yum, Up2Date. Etc.
Phil Schaffner
Philip.R.Schaffner at NASA.gov
Thu May 20 19:58:32 UTC 2004
On Thu, 2004-05-20 at 15:16, William Hooper wrote:
> billg said:
> > 1) Is yum's unresponsiveness due to mirror load? If so, why wasn't
> > up2date slow? Just dumb luck? Do they not look at the same
> > repositories?
>
> Up2date has code to pick a random mirror. Yum does not.
Well, yum takes a bit more work. The onus is on the user to select the
list of mirrors to randomize, but from "man yum.conf":
failovermethod
can be either 'roundrobin' or 'priority'. roundrobin randomly
selects a url out of the list of urls to start with and proceeds
through each of them as it encounters a failure contacting the
host.
priority starts from the first baseurl listed and reads through
them sequentially.
failovermethod defaults to roundrobin if not specified.
Example:
[os]
name=Fedora Core $releasever - $basearch - Base OS
baseurl=ftp://linux.stanford.edu/pub/mirrors/fedora/linux/core/$releasever/$basearch/os
http://ftp.dulug.duke.edu/pub/fedora/linux/core/$releasever/$basearch/os
http://mirrors.kernel.org/fedora/core/$releasever/$basearch/os
http://fedora.redhat.com/releases/fedora-core-$releasever
failovermethod=roundrobin
gpgcheck=1
>
> > 2) Why offer more than one way update a Fedora system?
>
> Why not? yum has features up2date doesn't and up2date has features yum
> doesn't.
Then there's apt-get - with different +/-
Phil
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