[talk-au] New tile rendering server (Experimental)

David Clark dbclark at fastmail.com.au
Wed Jul 24 09:45:27 UTC 2013

Does that mean it will be easier (therefore more likely) to improve the
rendering of OpenCyclemap? That would be good.

----- Original message -----
From: Grant Slater <[1]openstreetmap at firefishy.com>
To: [2]dbclark at fastmail.com.au
Cc: "talk-au" <[3]talk-au at openstreetmap.org>
Subject: Re: [talk-au] New tile rendering server (Experimental)
Date: Tue, 23 Jul 2013 15:36:15 +0100

On 23 July 2013 15:08, David Clark <[4]dbclark at fastmail.com.au> wrote:

Sorry I don't really understand this, how will this affect me and what


Hopefully you shouldn't see any difference. :-)

It is a large behind the scenes change on how we produce the default
map tiles (view) for OpenStreetMap.org

The old map stylesheet was a mass of difficult to understand XML. The
new map stylesheet is completely re-written in a much cleaner CartoCSS
syntax. Easier to maintain and improve, it is also easier to customise
it for other projects. Andy Allan's talk explains it better than I
could to:

We have also changed the server infrastructure used for rendering the
map tiles. The old server was becoming very complicated to maintain
and administer due to the many layers of complexity, code, and
undocumented hacks built up over time. The new server is setup using
an automated "devops" system (opscode chef). The chef cookbook we
wrote is here:



1. mailto:openstreetmap at firefishy.com
2. mailto:dbclark at fastmail.com.au
3. mailto:talk-au at openstreetmap.org
4. mailto:dbclark at fastmail.com.au
5. http://vimeopro.com/openstreetmapus/state-of-the-map-us-2013/video/68093876
6. http://git.openstreetmap.org/chef.git/tree/HEAD:/cookbooks/tile
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