[Server-devel] [XSCE] Steps involved in generating OSM maps for IIAB

Adam Holt holt at laptop.org
Wed May 13 06:46:43 EDT 2015


On Fri, Apr 24, 2015 at 12:19 PM, Anish Mangal <anishmg at umich.edu> wrote:

> Hi Braddock,
>
> Am willing to give this a shot. The map data on IIAB could do with an
> update. Let me know how/where I should access the machine.
>

Anish,

*How can others assist you here?*

PS Tim Moody miraculously fixed OpenStreetMap city/town search on a
Rwanda-bound IIAB/XSCE server on CentOS "7.1", by downgrading Whoosh from
2.7 to 2.6 overnight, just last night!


Will share my public ssh key with you separately.
>
> Best,
> Anish
>
>
> On Fri, Apr 24, 2015 at 9:12 PM, Braddock Gaskill <braddock at gmail.com>
> wrote:
>
>> Hi Tim,
>> The first step of the OSM processing is to import it into a huge
>> PostGreSQL database, and is what is used in tile rendering.  That database
>> has to reside on an SSD or the later rendering of tiles is too slow.  So
>> no, you can't really reduce the SSD storage requirement.
>>
>> I have a machine available that I built for this task if anyone wants to
>> use it remotely.
>>
>> -braddock
>>
>> On Thu, Apr 23, 2015 at 11:13 PM, Tim Moody <tim at timmoody.com> wrote:
>>
>>> Any way to do the calcs in smaller chunks to cut down on the storage
>>> requirements, or even get to ramdisk?
>>>
>>> Sent from my BlackBerry(R) PlayBook(tm)
>>> www.blackberry.com
>>>
>>> ------------------------------
>>> *From:* "Braddock Gaskill" <braddock at gmail.com>
>>> *To:* "xsce-devel at googlegroups.com" <xsce-devel at googlegroups.com>,
>>> "Braddock Gaskill" <braddock at braddock.com>
>>> *Sent:* 24 April, 2015 1:45 AM
>>> *Subject:* Re: [XSCE] Steps involved in generating OSM maps for IIAB
>>>
>>> IIAB Open Street Map generation...
>>>
>>> Note:
>>> -generating the OSM tiles requires a machine with at least a 500GB SSD
>>> (conventional HD is too slow) and 16 GB RAM, preferably with 4 or 8 cores.
>>>
>>> -It will take about a week of processing.
>>>
>>> -It was last done in 2012 on an Ubuntu 12.04 machine, and the OSM tools
>>> have probably changed a lot
>>>
>>> -I have a machine that should do the job if you want to do it remotely
>>>
>>> -Documentation on the procedure is available in the IIAB "Maintainers
>>> Guide"
>>>
>>> https://github.com/braddockcg/internet-in-a-box/blob/master/doc/Maintainers_Guide.txt
>>>
>>>
>>> -Further raw notes on what I did are in:
>>> https://github.com/braddockcg/internet-in-a-box/blob/master/doc/NOTES.txt
>>> See both sections:"OpenStreetMap - 8/23/12" and further down
>>> OSM Planet Import
>>> -If you are lucky, the OSM project documentation and tools have improved
>>> since 2012.  There was a LOT of trial and error back then.
>>>
>>> -braddock
>>>
>>>
>>>
>>> On Thu, Apr 23, 2015 at 10:24 PM, Anish Mangal <anishmg at umich.edu>
>>> wrote:
>>>
>>>> Yes. A listing of steps involved would be useful.
>>>>
>>>>
>>>> On Fri, Apr 24, 2015 at 10:53 AM, Tony Anderson <tony_anderson at usa.net>
>>>> wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> My recollection is that was done by Braddock. It involved rendering
>>>>> the tiles downloaded from OSM.
>>>>>
>>>>> Tony
>>>>>
>>>>>
>>>>> On 04/24/2015 06:23 AM, Anish Mangal wrote:
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> Are the steps to generate OSM data for use with IIAB documented
>>>>>> somewhere. Am willing to give it a try to download the map-data and
>>>>>> generate the required images/files.
>>>>>>
>>>>>> Best,
>>>>>> Anish
>>>>>>
>>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>
>
>
> --
>
> --
> Unsung Heroes of OLPC, interviewed live @ http://unleashkids.org !
>
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