[Server-devel] [XSCE] Tilestache on XSCE stack (OSM offline)

[Adam Holt]

Don't stop pushing Jerome- I hope you can demonstrate Nepal-or-larger
working models during our Toronto summit Oct 10-12.

See you 7AM EDT Thursday on our weekly call, if you have time for our
unusually early meeting this week: http://tinyurl.com/xsceminutes

(Several of our early design discussions on offline mapping began on
unleashkids at googlegroups.com, so am bringing that thread full circle.)

On Mon, Aug 10, 2015 at 11:01 PM, Anish Mangal <anishmg at umich.edu> wrote:

> adding server-devel (the publicly archived mailing list) as well.
>
> Great work. Thanks!
>
> Happy to help with the testing. I have an intel NUC running an atom
> processor 2 Ghz, and 2GB RAM - not exactly low end, but still a viable
> appliance to deploy the xsce.
>
> Could you tell me how to get the mbtiles from your ftp. If this works, I
> can help with creating a playbook - and possibly admin console integration.
>
> Thanks,
> Anish
>
>
>
> On Tue, Aug 11, 2015 at 8:19 AM, Jérôme Gagnon-Voyer <gagnonje at gmail.com>
> wrote:
>
>> Hi all
>>
>> This is about the project to bring a new way of storing OpenStreetMaps
>> offline for internet in a box (schoolserver).
>>
>> (Apologies if I'm using the wrong mailing list, feel free to add more)
>>
>> I wanted to test what it would look like to run Tilestache to serve
>> .mbtiles using the schoolserver. So I installed XSCE on a local VM with
>> Fedora 21 here, installed Tilestache, moved the .mbtiles in it, and did
>> some testing.
>> So far I only tested with Nepal zoom 0-13 and Nepal zoom 14-15 (to see
>> how combining multiple files was working)
>> I reduced the VM to use only 1 core at 50% (I'm on MBP Intel i5 2.6Ghz, 2
>> cores). Speed was decent when viewing with leaflet in my browser from my
>> laptop.
>>
>> I've created a gist that explains all the steps required to do it
>> https://gist.github.com/jeromegv/cb64bc2c9777794e80af
>>
>> The reason I wanted to test it was also to see if the integration would
>> be relatively straightforward. I assume you would eventually want to do the
>> install through the schoolserver admin console. When comes the time to do
>> that, I might not be the person to do this integration, but I think that
>> the steps I've done so far should at least prove that the XSCE stack should
>> be compatible.
>>
>>
>>    - I might not have the best testing setup or what is similar to a
>>    typical schoolserver, if you have the proper hardware to test, let me know,
>>    I can send you the .mbtiles on a FTP for nepal and you can test it (about
>>    1Gb)
>>    - Feel free to provide feedback on the GIST and if the integration
>>    seems to make sense
>>    - There's an extra optimization that is possible for tilestache, to
>>    cache the tiles to the HD once they were retrieved and served from the
>>    .mbtiles once. It's currently disabled. Not so sure if it's worth it and
>>    how much we would gain considering MBtiles are already pre-rendered files,
>>    perhaps better to test once we have a full planet. The downside is that it
>>    stores on HD a lot of PNG files and this might eventually baloon if you get
>>    tons of people to use those maps. Benefit of sticking entirely to mbtiles
>>    is we know exactly how much disk space. Might be optional setting from
>>    admin console when there's plenty of HD available.
>>    - Next step for me will be to test generation of MBtiles for bigger
>>    country and eventually get to the Planet. Will need some type of cloud
>>    setup to manage/store all that.
>>
>> Thanks
>>
>> --
>> Jérôme Gagnon-Voyer
>>
>> --
>> Unsung Heroes of OLPC, interviewed live @ http://unleashkids.org !
>>
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