[OSM-dev] how to debug rendering issue

[Stephan Knauss]

Hello Martin,
On 10.10.2012 23:52, Martin Guttesen wrote:
> I am having a similar problem
> see
> https://help.openstreetmap.org/questions/16763/mapnik-partial-rendering
> if you find out anything please, report back

my problem was probably related to a database problem. I clicked the 
wrong way in the data layer. So I ended up checking for the wrong ID. 
The way which was missing in the map was also missing in the database. 
So at least consistent.

My hoster did a hard shutdown of the server. This caused the unlogged 
tables being reset. I had the stupid idea that the server should be 
stable enough to accept unlogged tables.

All missing ways had been edited after that crash of the DB. So my best 
guess is that changes to these ways caused them to disappear from the DB.

Did you check your DB contents? It looks like all areas are missing.

Stephan