[Systems] [OLPC-AU] Australian mirror for XO builds

Sridhar Dhanapalan sridhar at laptop.org.au
Sun Feb 27 23:55:09 EST 2011

On 28 February 2011 15:34, David Farning <dfarning at gmail.com> wrote:
> -----Original Message-----
> From: Sridhar Dhanapalan [mailto:sridhar at laptop.org.au]
> Sent: Sunday, February 27, 2011 7:17 PM
> To: David Farning
> Cc: OLPC Australia list; systems
> Subject: Re: [OLPC-AU] Australian mirror for XO builds
> On 26 February 2011 09:31, David Farning <dfarning at activitycentral.com>
> wrote:
>> On Wed, Sep 22, 2010 at 9:19 PM, Sridhar Dhanapalan
>> <sridhar at laptop.org.au> wrote:
>>> AARNET have kindly agreed to provide Australian mirroring for the
>>> official XO builds:
>>>  http://mirror.aarnet.edu.au/pub/olpc/
>>> This mirror will be updated daily.
>>> This should hopefully make the builds easier to download. If your ISP
>>> has a peering agreement with AARNET, you may also be able to download
>>> without depleting your download quota.
>> Another thought might be to work with the sysadmins from Sugar Labs to
>> use the existing sugar labs download network.
>> The Sugar Labs download network serves http://download.sugarlabs.org/
>> and http://activities.sugarlabs.org//en-US/sugar/ a.sl.o is nearing
>> 5million activity downloads:)
>> The Sugar Labs sysadmins can add aarnet.edu.au to the mirror
>> configurations so that all download requests from Australia are served
>> via the aarnet.edu.au mirror.
>> From that point forward it will just be a matter of rsyncing au builds
>> to downloads.sugarlabs.org . mirrorbrain will handle the rest.
> |What would it take to set up something like this? I can ask AARNET to
> mirror the download.sugarlabs.org, if that's required.
> +1. We ask AARNET to mirror download.sugarlabs.org via rsync. Then add
> AARNET to the list of known mirror in mirrorbrain.

I've just put in a request with AARNET. They are already mirroring
OLPC and OLPC AU, so I have high hopes that they'll do SL too.

> |Is the redirect automatic? That is, if someone in Australia tries to
> download from sugarlabs.org, can they automatically served by AARNET?
> |That would make our downloads much faster.
> +1. The initial http request (very small) goes to the primary server hosted
> in Boston by the Free Software Foundation. Using GEOIP to determine physical
> locality and an Apache module named mod_asn to determine network locality
> the download request is redirected to the best mirror. In the case of
> Australia that would be AARNET.

Brilliant! I'll let you know when the mirroring is set up.


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