[Live-demo] "big" data sets on OSGeo Live

Angelos Tzotsos gcpp.kalxas at gmail.com
Fri Jan 11 08:50:34 PST 2013


Hi Micha,

I agree that it will soon get really hard to fit everything on the disk.
The proposed changes buy us some time for now.

Cheers,
Angelos

On 01/11/2013 06:04 PM, Micha Silver wrote:
> On 01/10/2013 11:47 PM, Angelos Tzotsos wrote:
> > Hi Peter and thanks for bringing this topic here.
> >
> > It would be great to have more data space and perhaps we can save some space
> > if we track which projects use non common data-sets.
> > From the IRC discussion there was a thought to include a hyperspectral dataset
> > so that rasdaman, OTB, OSSIM, EOxServer and GRASS to use in common. Any
> > thoughts on that? Should we play safe with free MODIS dataset or is there
> > another suggestion? Would it be ok if we limit this to ~50MB size or would we
> > need more? I know this is not enough for a good remote sensing dataset, but we
> > are short on disk space currently.
> >
>
> We've all seen the strong growth of FOSS4G software in the last 5 years or so,
> and this will most likely continue in the years to come. The popularity of the
> OSGeo Live platform will create ever increasing pressure to add more and more
> applications. I think that we'll have to face the prospect, sooner or later, of
> splitting into two versions : a "Desktop" DVD and a "Server" DVD. With some
> clever juggling of sample data, this can probably be put off for a while, but
> eventually 4GB (or 4.4 on a DVD) just won't be enough.
>
> My 0.02 €,
> Micha
>
> > I liked the idea of using some web services for demo purposes in addition to
> > data included in the disk as long as there is a notice to the user that those
> > are available only with internet connection.
> >
> > About projects mentioned:
> > MapGuide is actually not included in the disk due to that large footprint
> > (caused by mono dependency).
> > Marble in large because its dependencies for Qt bring in large parts of the
> > KDE libraries.
> >
> > We definitely need to hear more from the projects on this!
> >
> > Best,
> > Angelos
> >
> >> Hi listers,
> >>
> >> as space is running short on the ISO we need to reconsider sizings. In
> >> today's OSGel Live chat I was tasked to initiate this discussion. Current
> >> disk footprint of each application is available from
> >> https://docs.google.com/spreadsheet/ccc?key=0Al9zh8DjmU_RdGIzd0VLLTBpQVJuNVlHMlBWSDhKLXc#gid=13
> >>
> >>
> >> Top riders currently:
> >> - mapguide: 550mb
> >> - marble: 300 mb (includes disk caching!)
> >> - grass >250mb
> >>
> >> One way of saving space is to enlarge it (ie, go to 8 GB) which is unclear
> >> due to some unresolved questions; another one is to deflate unused datasets,
> >> a third one to share data among applications.
> >>
> >> Can I ask all those with 3-digit disk hunger to chime into this discussion.
> >>
> >> thanks,
> >> Peter
> >
> >
>
>
> -- 
> Micha Silver
> GIS Consultant, Arava Development Co.
> http://www.surfaces.co.il
>


-- 
Angelos Tzotsos
Remote Sensing Laboratory
National Technical University of Athens
http://users.ntua.gr/tzotsos



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