<p>Hi Martin. <br>
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.<br>
That is why xapi is excellent. It is only the reliability issue that has me thinking about my own database server.</p>
<p>Graham</p>
<p>from my phone</p>
<p><blockquote type="cite">On 30 Jan 2011 19:57, "M∡rtin Koppenhoefer" <<a href="mailto:dieterdreist@gmail.com">dieterdreist@gmail.com</a>> wrote:<br><br>2011/1/30 Graham Jones <<a href="mailto:grahamjones139@gmail.com">grahamjones139@gmail.com</a>>:<br>
I can't give you advice on how big a server should be to keep up with<br>
the whole planet, but going back to your original problem (XAPI not<br>
reliable, you need if for small city extracts) you could download<br>
country extracts for the area you are interested in, and if this is<br>
too big (slow) you could cut even smaller parts of this with Osmosis.<br>
<br>
What I am doing myself (not having powerfull server infrastructure at<br>
hand) is additionally extracting features from the planet (cities,<br>
boundaries, rivers, countries, motorways, trunk roads ...) and merge<br>
them with the extract for rendering low zoom tiles.<br>
<br>
As long as you are not interested in the details in other countries<br>
(smaller cities and streets) this allows for pleasant rendering IMHO,<br>
"simulating" global coverage.<br>
<br>
Cheers,<br>
Martin<br>
</blockquote></p>