[Systems] [Sugar-devel] Broken ASLO mirrors

[Gonzalo Odiard]

Thanks Bernie!


On Sat, Aug 9, 2014 at 7:37 PM, Bernie Innocenti <bernie at codewiz.org> wrote:

> On 08/09/2014 06:26 PM, Bernie Innocenti wrote:
> > On 08/09/2014 06:16 PM, Bernie Innocenti wrote:
> >> (dropping a bunch of redundant addresses from the cc list)
> >>
> >> I noticed a strange pattern: all the rsync mirrors appear to be broken,
> >> but in fact they're all responsive and up to date (the timestamp.txt
> >> file is fresh).
> >>
> >> Looks like Mirmon's health check over rsync is broken in some way.
> >
> > Ok, found the cause with strace:
> >
> > $ strace -f -e execve mirmon -v -get all -c /etc/mirmon.conf
> > [...]
> > [pid 11135] execve("/usr/bin/wget", ["/usr/bin/wget", "-q", "-O", "-",
> > "-T", "30", "-t", "1", "rsync://mirror.aarnet.edu.au/pub"...], [/* 40
> > vars */]Process 11124 detached
> >
> > It's using wget with an rsync url :-(
>
> Ok, looks like the default /etc/mirmon.conf shipped with the Ubuntu
> package doesn't support rsync. After reading the f...ine manual, I
> changed it like so:
>
>   probe /usr/bin/probe -q -t %TIMEOUT% %URL%timestamp.txt
>
> This seems to do the right thing. Mirrors with rsync probing urls have
> started to go green, and will go back online in a few hours (mirmon does
> not declare them healthy until it has seen them up for long enough).
>
>
> >> On 08/09/2014 06:08 PM, Bernie Innocenti wrote:
> >>> Our CDN works like this:
> >>>
> >>> 1. mirmon checks periodically if mirrors are responding and up to date
> >>>
> >>> 2. clients send queries to download.sugarlabs.org (sunjammer)
> >>>
> >>> 3. mod_mirrorbrain in apache uses geoip to find the closest *WORKING*
> mirror
> >>>
> >>> 4. apache sends back a 302 redirect to the chosen mirror
> >>>
> >>> 5. user downloads the file from the mirror
> >>>
> >>>
> >>> So, no matter how many mirrors are broken, you should *never* get
> >>> redirected to an error page. Can anyone show me a "wget --save-headers"
> >>> showing the problem?
> >>>
> >>>
> >>> On 08/07/2014 08:32 AM, Martin Abente wrote:
> >>>>
> >>>>
> >>>> On Wed, Aug 6, 2014 at 5:54 PM, Sam Parkinson <
> sam.parkinson3 at gmail.com
> >>>> <mailto:sam.parkinson3 at gmail.com>> wrote:
> >>>>
> >>>>     We really should perge the mirrors list of dead mirrors.
> >>>>     http://mirrors.sugarlabs.org
> >>>>
> >>>>
> >>>> +1, I was thinking more like disabling temporarily those who haven't
> >>>> been working since a few days.
> >>>>
> >>>>     Maybe we should contact arrnet (the one in question) - they might
> >>>>     fix it if you ask nicely :)
> >>>>
> >>>>     I will try to setup a mirror myself - I have like 1tb unused
> >>>>     internet on my new aslo server (digitalocean in Singapore).
> >>>>
> >>>>     On Aug 7, 2014 7:50 AM, "Ignacio Rodríguez" <
> ignacio at sugarlabs.org
> >>>>     <mailto:ignacio at sugarlabs.org>> wrote:
> >>>>
> >>>>         Sebastian, did you remember in sugar camp?
> >>>>
> >>>>         We got the same problem..
> >>>>
> >>>>         You fixed it?
> >>>>
> >>>>         Or that was automatic?
> >>>>
> >>>>         Ignacio Rodríguez
> >>>>
> >>>>
> >>>>         2014-08-06 18:44 GMT-03:00 Sebastian Silva
> >>>>         <sebastian at fuentelibre.org <mailto:sebastian at fuentelibre.org
> >>:
> >>>>
> >>>>             Hi,
> >>>>             I have experienced the same thing. Not sure it was the
> same
> >>>>             mirror.
> >>>>
> >>>>             Regards,
> >>>>             Sebastian
> >>>>
> >>>>             El mié, 6 de ago 2014 a las 2:47 PM, Martin Abente
> >>>>             <martin.abente.lahaye at gmail.com
> >>>>             <mailto:martin.abente.lahaye at gmail.com>> escribió:
> >>>>
> >>>>>             Hello everyone,
> >>>>>
> >>>>>             Has anybody else noticed that some ASLO mirrors are
> broken?
> >>>>>
> >>>>>             In example:
> >>>>>
> >>>>>                 The
> >>>>>                 URL
> http://download.sugarlabs.org/activities/4040/finance-11.xo,
> >>>>>                 sometimes redirects
> >>>>>                 to
> http://mirror.aarnet.edu.au/pub/sugarlabs/activities/4040/finance-11.xo
> >>>>>                 which is broken.
> >>>>>
> >>>>>             Ideas?
> >>>>>
> >>>>>             tch.
> >>>>
> >>>>             _______________________________________________
> >>>>             Systems mailing list
> >>>>             Systems at lists.sugarlabs.org <mailto:
> Systems at lists.sugarlabs.org>
> >>>>             http://lists.sugarlabs.org/listinfo/systems
> >>>>
> >>>>
> >>>>
> >>>>         _______________________________________________
> >>>>         Sugar-devel mailing list
> >>>>         Sugar-devel at lists.sugarlabs.org
> >>>>         <mailto:Sugar-devel at lists.sugarlabs.org>
> >>>>         http://lists.sugarlabs.org/listinfo/sugar-devel
> >>>>
> >>>>
> >>>
> >>>
> >>
> >>
> >
> >
>
>
> --
>  _ // Bernie Innocenti
>  \X/  http://codewiz.org
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> http://lists.sugarlabs.org/listinfo/sugar-devel
>



-- 
Gonzalo Odiard

SugarLabs - Software for children learning
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