[CentOS] Why is yum not liked by some?

Lamar Owen lowen at pari.edu
Mon Sep 12 10:51:11 UTC 2005

> On Sun, 11 Sep 2005, David Johnston wrote:
>> On Fri, 2005-09-09 at 11:01 -0400, Lamar Owen wrote:
>> > (multiple versions, consistent repository states) done.  While a CVS
>> commit
>> > is in progress, for instance, other users still see the previous
>> state; this
>> > is not true for a YUM repository.

>> Hmm.  This sounds like the crux of the problem.  If the mirroring
>> software could be tricked into copying the repodata last, wouldn't this
>> problem (and this thread) go away?

> rsync does not allow you to specify an order, however rsync has 2 options.
> --delay-updates will update the mirror at the end of the sync, which is
> near atomic (this is functionality that Jeff Pitman wrote when I needed it
> for my repository) and you have an atomic-script that comes with rsync
> that hardlinks the tree, makes updates in that new tree and finally
> atomically puts it all back.

This one thing right there will help tremendously.  Thanks for the pointer
to --delay-updates (any idea which version of rsync this first appeared?).
Lamar Owen
Director of Information Technology
Pisgah Astronomical Research Institute
1 PARI Drive
Rosman, NC  28772

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