Hi Martin. Thank you for the reply. You are right thar for my own rendering jobs I can use extracts, but my application is a web service so I have no control over the area requested by the user. That is why xapi is excellent. It is only the reliability issue that has me thinking about my own database server.
Graham from my phone On 30 Jan 2011 19:57, "M∡rtin Koppenhoefer" <dieterdre...@gmail.com> wrote: 2011/1/30 Graham Jones <grahamjones...@gmail.com>: I can't give you advice on how big a server should be to keep up with the whole planet, but going back to your original problem (XAPI not reliable, you need if for small city extracts) you could download country extracts for the area you are interested in, and if this is too big (slow) you could cut even smaller parts of this with Osmosis. What I am doing myself (not having powerfull server infrastructure at hand) is additionally extracting features from the planet (cities, boundaries, rivers, countries, motorways, trunk roads ...) and merge them with the extract for rendering low zoom tiles. As long as you are not interested in the details in other countries (smaller cities and streets) this allows for pleasant rendering IMHO, "simulating" global coverage. Cheers, Martin
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