[OSM-talk] Mapnik at zoom=19

Martin Trautmann traut at gmx.de
Tue Jan 15 07:45:56 GMT 2013


On 13-01-14 0:10, Kai Krueger wrote:

> Of cause that would put extra pressure on the renderer, but during normal
> operations (i.e. if it is not e.g. rerendering everything) it seems to still
> have a fair amount of capacity left.

I agree that z20 and more would be very helpful on occasions - and that
rendering on request would be sufficient. Some mild caching should apply
when walking around, maybe even using some preemptive computation. But I
see not need for full rendering of towns or areas.

> Also the tile throttling mechanisms seem to work sufficiently well to
> prevent any "crazy" people from e.g. trying to download all of Europe at
> z19.

Rendering might be slowed down artificially for high volume requests
from the same ip.

- Martin



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