[arch-mirrors] miscellaneous

Carsten Otto otto at informatik.rwth-aachen.de
Sun Dec 11 10:30:30 EST 2011


On Sun, Dec 11, 2011 at 12:09:05AM +0100, Pierre Schmitz wrote:
> Hi. I am not sure if anybody answered your mail yet, so I just go
> ahead.

Your mail is the first reply - thanks for that!

> This wiki entry just contains a few "unofficial" mirrors. The official
> source for such information is https://www.archlinux.org/mirrors/ These
> lists are automatically generated.

I see. Confusing, nevertheless :)

> Tier 1 mirrors sync hourly. So it does not make much sense to sync more
> often than your upstream mirror. However, you might reduce the delay if
> you have try to sync eight after your tier 1 mirror has finished. E.g.
> if you upstream still is https://www.archlinux.org/mirrors/uk2.net/ you
> might sync a few minutes after **:30 every hour.


> Also note that we setup this multi tier scheme to reduce traffic on our
> main server which has a bandwidth limit of 12 MBit and also has to serve
> the website, email and bug tracker. So we have to be careful about how
> many mirrors sync how often.

I see the problem, but do not really understand how that relates to my

> I didn't look into details of this. This might give us more control
> about when which mirrors sync from us. However, this might not work well
> with our multi tier setup. E.g. we could notify our tier 1 mirror about
> changes, but it would be up to them to notify their tier 2 mirrors.
> (none of the tier 1 mirrors that serves as tier 2 upstream is controlled
> by us)

You can learn a lot for Debian here, there is no need to reinvent the

> I hope this clarifies a few things. If not don't hesitate to ask me.

Yes, it does. Thanks!

Carsten Otto           otto at informatik.rwth-aachen.de
LuFG Informatik 2      http://verify.rwth-aachen.de/otto/
RWTH Aachen            phone: +49 241 80-21211
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