Frederik Ramm wrote: > * 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. > > * Has the "incomplete upload" question been cleared (client uploads > individual tiles that need to be incorporated into an existing big > tile)? Can this be done without a significant performance penalty, > and if not, how frequent is the situation?
I'd suggest: 1) Look for single files in "incompleteTiles" directory 2) Look for "bigFile" tiles 3) Look for single files in "oldTiles" directory 4) Look in land/sea database 5) Fail Step 3 and 4 could be disabled in a couple of months. Maybe we'll have enough server resources someday to integrate incomplet uploads into bigFiles and disable step 1, too. cu Henry PS: BTW and totally unrelated, but we might need more kinds of empty tiles some day. Ice, desert and tropic forest... _______________________________________________ Tilesathome mailing list [email protected] http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/tilesathome
