Seth Vidal wrote:
On Wed, 17 Mar 2010, Les Mikesell wrote:
Doesn't the mirrorlist refer to the DNS names? So if you add, delete,
or move a mirror you'd have to update DNS for its name, then put the
DNS name in your mirrorlist - and you have two things that can get out
of sync, both cached in various places.
I don't think you understand how the mirrorlist works.
It's just a list of mirrors of the repo you want available and the path
to that location.
Yes, doesn't that mean someone has to put those names in DNS first so the list
can refer to them?
So each host behind a squid picks a name from the list and since they
are likely different names, squid won't know the target url is already
in its cache. And getting/managing copies of the mirrorlist is much
slower than a new DNS lookup. There's probably a rare case where
being able to 'yum clean all' on demand is quicker than waiting for an
intermediate DNS cache to refresh and clear a bad entry, but things
have gone badly wrong if you need that.
For dealing with squid either:
1. setup a private mirror and user mirrormanager to refer your folks there
2. use intelligentmirror
I'm not going to do oddball stuff like that for every distro/version that
someone might want to run several copies of. If it doesn't bother you to make
the mirrors work many times harder than they should, I'll live with it - but I
still think it's a bad design.
--
Les Mikesell
lesmikesell@xxxxxxxxx
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