Since we are exploring different mapnik based rendering, I'm presenting mine too ;-)
> It's really just a simple PHP script that invokes the Python script: > http://paste.debian.net/31026/ That's almost what I did in the first place ( in even more hugly !) as I am a php dev and not a python dev. But just like you figured it out, there are no php mapnik bindings... > Anyway. This method keeps the server busy with invoking Interpreters > and parsing scripts instead of really do something useful Well, not only and not mainly, (mod_php will stay loaded, and the python interpreter will be cached to ram ) The main problem I found was that the xml mapnik style file (~300ko) is reloaded and parsed at every tile generation. That was roughly 70% of time spent. (I'm not talking about disk cache, whatever your solution is, it will be hundred times faster than tile generation) > Instead I'm thinking about writing some multithreaded FreePascal or > C++ FastCGI server that does it much more efficiently (by using > libmapnick internally) but I still need to have a look at mod_tile as > it might already provide a highly performant solution. mod_tile really seams the fastest solution fro high traffic server. But maybe (I said maybe I didn't tried it, only supposed it from docs) lacking a few functionnalities or flexibility ( server side tiles merging, common cached tiles across different mapnik styles at special zooms, ...) things that you probably don't want to recode in C while simpler in "high level" language for noobs like me ;-) stop the blabla, implementation is here : http://wiki.openstreetmap.org/wiki/Howto_real_time_rendering_with_mapnik_and_mod_python -- sly sylvain letuffe _______________________________________________ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
