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From Peter Pöml <Pe...@poeml.de>
Subject Re: [INFRA] download.services.openoffice.org in danger
Date Tue, 06 Mar 2012 23:20:57 GMT

Am 04.03.2012 um 23:43 schrieb Marcus (OOo):

> Am 03/04/2012 08:02 PM, schrieb Dave Fisher:
>> With the Oracle infrastructure going away we are in danger of losing the legacy downloads
and the root of the MirrorBrain network.
> 
> I haven't realised that this counts also for the download webserver. I thought for mail
services only.

Is it definite that {download,updateext}.service.openoffice.org is going to be switched off
- and when is it?
 
>> Also it turns out that the Extensions site uses the url updateexte.services.openoffice.org
for updates and that url points to download.services.openoffice.org
> 
> I don't know the reason for the linking. But maybe it's because a few extensions are
outsourced from the main repository due to their high load. See:
> 
> http://download.services.openoffice.org/files/extended/extensions/

/ExtensionUpdateService/check.Update is one of the most popular files - with around 5-10 requests
per second.


>> SourceForge has asked to take control of updateexte.services.openoffice.org which
makes sense.
> 
> Great.
> 
>> What do we want to do about download.services.openoffice.org?
> 
> It can be switched to the alternative host which is hosted by MirrorBrain itself, so
that this is used for serving downloads instead of the Oracle hosted service.

Please note however that my fallback of download.services.openoffice.org does not have all
features. It has the mirror redirection (the essential), but does not serve cryptographic
hashes for verification, no automatically generated torrents, no metalinks.

If you compare the following two URLs, you can note the differences:
http://download.services.openoffice.org/files/stable/3.3.0/OOo_3.3.0_Solaris_Sparc_install-wJRE_en-US.tar.gz.mirrorlist
http://openoffice.mirrorbrain.org/stable/3.3.0/OOo_3.3.0_Solaris_Sparc_install-wJRE_en-US.tar.gz.mirrorlist

Also, what's not visible, is that the fallback host doesn't count downloads.

Mirror selection and redirection are the same. But as you might know, large downloads benefit
from means for download verification, which is why crypto hashes and metalinks/torrents are
useful, especially affecting downloaders with not less-than-ideal connectivity.

To set up a full fallback, I am lacking the disk space, unfortunately. I don't have space
for the file tree. (I would appreciate donations for running costs of disk space, or access
to server, very much.)

But, no problem, there is the option of continuing by switching to my host as it is. 

Given there is hardware, I could set up a successor for download.services.openoffice.org,
respectively move it to a new home, if there is interest... 

Well I hope there is! I know I am biased, because I'm the one who built download.services.openoffice.org,
and spent some years with it. But I'd bet some money that nobody wants to go back to pre-MirrorBrain
times, where the really close mirrors were always ignored when you downloaded OpenOffice.org...

> See the file "http://www.openoffice.org/download/globalvars.js". Just exchange the content
for the "MIRROR_MIRRORBRAIN_URL" and "MIRROR_MIRRORBRAIN2_URL" variables.
> 
> Marcus


By the way, here's a disclaimer: I'm also the "head" behind LibreOffice's download system.
Yes, if you might wonder: I am maintaining the download servers of both projects and have
no problem with that :-)

Peter


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