> * Will tile download be done with PHP (has this been covered in > the benchmarks - compare executing PHP code to extract data from > a large tile with having Apache load the tile directly), or > will we have an Apache module for that?
Tile download for any level needs to be provably just as fast as it is now in production volumes, without client modification. > * What transition strategy would we employ - surely we don't want > to delete the current tiles, so they would either have to be > converted to the new format (how long would that take?), or the > tile download code would have to employ a "look for big tile > first, deliver from old data if nothing found" mechanism. This is the biggest problem in my mind. There are nearly 4 million z12 land and coastal tiles. Requiring re-rendering all of them after a server code transition day won't be an adequate strategy. We've already seen how ugly it is for the captionless "unknown tile" situation, and we're not making much progress in chewing through that backlog. How would it work under this proposal? - Alan _______________________________________________ Tilesathome mailing list [email protected] http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/tilesathome
