>> I do not have diff update for my osm2pgsql database, just to make >> renderd happy I created /var/lib/mod_tile/planet-import-complete file >> with yesterdays date and started to prerender tiles with ./render_list >> -m default -a -z 0 -Z 10 >> >> But now I noticed that when I rerun the command then it always >> re-renders also already existent tiles. >> > Indeed render list renders all tiles you specify in the list independent of > their age. > The rendering daemon (renderd or tirex) render everything that they get > handed. The filtering of what to render (e.g. because they aren't outdated) > happens in the calling program e.g mod_tile or render_list. What you are > probably looking for is the program render_old. It gos through all the > rendered tiles on disk and figures out if that tile is outdated or not. If > it is, it submits it for re-rendering. If it is fresh, it will just ignore > the tile.
Mod_tile includes bunch of render_x scripts with very little explanation or list of command parameters, maybe I just picked wrong one. What I'm looking for is effective prerendering for globe on zoom 0-9 (or so). It is days-long process, so there can be need to stop it and continue. For now I understood that: a) Render_old probably does not fit for initial pre-rendering, as I do not have yet any tile file. It could be good after planet updates. b) Render_list just forces rerendering of everything (I use --all parameter), even if tile already exists. It would work for initial rendering if you are doing it really from zero and with single run. But if I've done zooms 0-3 and some of 4, then need to restart machine and then continue, then I need somehow find out what was the last zoom and re-render from this at least. c) render_expired sounds closest to my need by description, but I do not have specific list and this has no --all parameter. It sounds like too standard problem for me to start new scripting. -- Jaak _______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/dev
