I downloaded Nominatim http://wiki.openstreetmap.org/wiki/Nominatim/Installation. The database size is more than 400 GB. The speed of geocoding is very slow. I want to increase it.

For example, I need to geocode only to the level of the village or town. Can I remove some not usefull data from planet.osm.pbf or from geodatabase "Nominatim"? I do not need streets, suburbs, buildings, etc. The structure of geodatabase "Nominatim" is quite difficult, so I think that the best way is to change osm.pbf file.

How can I remove data from geodatabase "Nominatim" or from osm.pbf file? Is this the right way?

  • 2
    Very tecnical question and the OSM community here is pretty smal. I recommend to start a crosspost over at help.osm.org – Mapper Dec 18 '13 at 6:29
  • The crosspost can be found here. – scai Dec 18 '13 at 10:01

The best way is to remove some data from planet.osm.pbf

You can not use osmsharp http://www.osmsharp.com/wiki/data-processing, because this framework does not support big xml files. I use osmosis http://wiki.openstreetmap.org/wiki/Osmosis/Detailed_Usage_0.44 for my purposes.

For example, if you extract only administrative boundaries, you will resize your database from 600 GB to 20GB. Also you increase the speed of geocoding.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.