[CentOS-mirror] Mirror Changes - Important (fwd)

NAIST FTP Administrator

ftp-admin at is.naist.jp
Mon Apr 18 18:22:32 UTC 2005


Dear Lance


Thank you for your notify.

We are now setted up our mirror tree.

ftp://ftp.naist.jp/pub/Linux/centos/
ftp://ftp.naist.jp/pub/Linux/caos/


And we have supported HTTP and RSYNC.
There are able to access via following urls:

http://ftp.naist.jp/pub/Linux/centos/
http://ftp.naist.jp/pub/Linux/caos/

rsync://ftp.naist.jp/centos
rsync://ftp.naist.jp/caos



Best Regards


On Mon, 18 Apr 2005 18:06:33 +0100 (BST)
Lance Davis <lance at uklinux.net> wrote:

> 
> We sent out notification of changes to mirroring on 30th March and you
> dont seem to have implemented the changes yet.
>                                                                                                                                                              
> Please let me know if there is a problem, or make the changes as soon as
> possible so that we can close off the old system.
>                                                                                                                                                              
> Thanks
>                                                                                                                                                              
> Regards
> Lance
> 
> 
> -- 
> uklinux.net - 
> The ISP of choice for the discerning Linux user. 
> 
> ---------- Forwarded message ----------
> Date: Wed, 30 Mar 2005 21:42:11 +0100 (BST)
> From: Lance Davis <lance at uklinux.net>
> Reply-To: Mailing list for CentOS mirrors. <centos-mirror at centos.org>
> To: centos-mirror at centos.org
> Cc: caos-mirror at caosity.org
> Subject: [CentOS-mirror] Mirror Changes - Important
> 
> 
> Due to the split of mirrors with cAos , it will be necessary for mirrors 
> to make some changes to the way that they mirror the CentOS tree, as 
> moving forward it will no longer be a part of the caosity tree.
> 
> Firstly mirrors need to decide whether they are mirroring CentOS or cAos 
> or both. They are distinct operating systems, CentOS is a rebuild of 
> Enterprise Linux , whereas cAos is an rpm based distribution in its own 
> right.
> 
> For more information see www.centos.org or caos.caosity.org
> 
> At present both trees are mirrored with a single rsync of 
> mirror.caosity.org::cAos - moving forward two rsyncs will be needed :-
> 
> mirror.caosity.org::caosity that will get the caos tree
> 
> and
> 
> msync.centos.org::CentOS that will get the CentOS tree
> 
> Please note that at present CentOS will be listed and stored within the 
> cAos tree, this should not be the case in the future - CentOS should never 
> be stored or listed as a part of cAos or caosity.
> 
> Mirror Changes
> --------------
> 
> In order to achieve the changes required with minimum download bandwidth 
> the following steps should be carried out. (Note that individual 
> circumstances may vary - if in doubt do nothing and ask) .
> 
> 1. Stop cron based rsync job from syncing
> 
> 2. Move the CentOS tree to its new location, which should be at the root 
>    of the publically served tree. 
> 
>    This can either be achieved with 'mv' or if you want a 2nd chance at it 
>    'cp -al' which will create a hardlinked copy of the tree (as long as it 
>    is on the same partition)
> 
>    eg with directory structure 	/pub
> 				/pub/caos
> 				/pub/caos/centos
> 
>    cp -al /pub/caos/centos /pub/
>    or
>    mv /pub/caos/centos /pub
> 
>    to end up with 		/pub/
> 				/pub/caos
> 				/pub/centos
>    (and 			/pub/caos/centos/ if using cp -al)
> 
> 3. Create a new rsync cron job to sync the CentOS tree (if required) . 
> This should be    something like :-
> 
>    rsync -aqzH --delete msync.centos.org::CentOS /pub/
> 
>    *** note the change to msync.centos.org *** mirror.centos.org is 
>    deprecated for rsync use - to allow us to use different servers for yum 
>    mirrors.
> 
>    please use rsync -anvzH --delete msync.centos.org::CentOS /pub/ 
>    first to test that the command will do the right thing ('n' is dry run 
>    and will just show what wil be transferred - which in theory should be very 
>    little - if it says 40 GB + then the command is wrong !!)
> 
> Note that due to the way that rsync works any updates will only be written 
> to this new tree and not the hardlinked tree left behind if using cp -al 
> above ( that can be deleted once you are happy with the new location 
> working).
> 
> 4. Create a new rsync cron job to sync the cAos tree (if required). This 
> should be something like :-
> 
>    rsync -aqzH --delete mirror.caosity.org::caosity /pub/
> 
>    *** note the change to ::caosity - ::cAos will still sync both trees 
>        for mirrors that havent restructured yet.                       ***
> 
>    This will also delete the CentOS tree left underneath the caos tree 
>    above.
> 
> You should now have both trees in the correct places.
> 
> 5. Please email the list to say that you have restructured your mirror and 
> what the new urls will be for public use. We will update the databases to 
> reflect these new locations.
> 
> 6. It is not necessary to mirror all of centos if you do not wish to - eg 
> you can choose whether to carry 2.1 , 3.3, 3.4, 4.0 - but please note in 
> the email any trees that you will not be carrying and we will note that in 
> the database.
> 
> 7. In the very near future we will be restricting access to 
> msync.centos.org to publically listed mirrors only - we have to establiush 
> a way for new mirrors to sync first though.
> 
> 8. We will be tracking which mirrors have/havent restructured and will 
> contact individual mirrors accordingly.
> 
>  There is now an irc channel - #centos-mirror 
> on irc.freenode.net where mirroring discussions may be held.
> 
> Lance
> 
> -- 
> uklinux.net - 
> The ISP of choice for the discerning Linux user. 



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NARA Institute of Science and Technology
http://www.naist.jp/

NAIST FTP server administrator
ftp-admin at is.naist.jp
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