[Geocoding] Different result in local nominatim instance and official instance

Bartosz Kwapisz kwapisz.bartosz at gmail.com
Wed Oct 28 13:51:43 UTC 2020


Hi Sarah,
thanks for response and verification on your site.

Here are my responses:

> Hi Bartosz,
>
> On Mon, Oct 26, 2020 at 11:05:06PM +0100, Bartosz Kwapisz wrote:
> >* Hi everyone!
> *>* I have a question about nominatim.
> *> >* Whenever we build a database for Poland we cannot get the same data that we
> *>* can find on the official site.
> *>* I marked the address entry on a screenshot that is problematic one - it is
> *>* present on the official site but not in our local instance. The problem
> *>* occurs for many villages (in Poland).
> *
> You cannot expect the same results for your installation
> as on the nominatim.openstreetmap website. The OSM server runs
> always the latest version of Nominatim together with continuous
> data update. That means that the data you see is indexed with
> the Nominatim version that was current at the time it was last
> touched.
>
>
Yes of course, but I tried to use different data sources of pbf files and
the result is still the same.
Is there any way to use exactly the same data source (pbf) as is used by an
official site?
Do you know what data is used by official nominatim?


>
> >* Screenshots of the same place in our instance and official site:
> *>* [image: nominatim_official.png]
> *>* [image: nominatim_local.png]
> *>* Link for this entry -
> *>* https://nominatim.openstreetmap.org/ui/details.html?osmtype=W&osmid=179061982&class=highway <https://nominatim.openstreetmap.org/ui/details.html?osmtype=W&osmid=179061982&class=highway>
> *
> I've tried with an import using latest Nominatim and also
> updated the data on nominatim.osm.org. 'Slowik' appears in the
> address in all cases. Can you check if you have 'Slowik' at all
> in your database. If it is there, is it shown as being in
> 'gmina Zgierz'?
>
> Yes I have 'Słowik' in the database with the same osm_id.
As I mentioned before - there are more villages with the same problem.
That's why I assume that there has to be a configuration/data source
problem.

Here is a link to Słownik entry -
https://nominatim.openstreetmap.org/ui/details.html?osmtype=N&osmid=31879464&class=place
And local one - https://nazwa.takeanddrive.eu/tmp/nominatim_local_slowik.png


Regards,
Bartosz Kwapisz

>
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