On 10/05/10 23:13, Frederik Ramm wrote: > You can run Apache in single process mode and strace that (provided that > Apache isn't needed for anything else at the time): > > su > /etc/init.d/apache2 stop > export APACHE_RUN_USER=www-data > export APACHE_RUN_GROUP=www-data > strace -o outputfile -f apache2 -X > > You should see mod_tile (a) trying to open the tile on disk (grep for > the filename) and if unsuccessful (b) trying to contact renderd (grep > for the renderd socket name).
I tried that. The strace file is here ( http://www.technomancy.org/openirishmap/apache-trying-to-load-mod-tile.strace.txt ) 190KiB. It looks like it's loading the mod_tile: 6920 stat("/etc/apache2/mods-enabled/tile.load", {st_mode=S_IFREG|0644, st_size=60, ...}) = 0 6920 open("/etc/apache2/mods-enabled/tile.load", O_RDONLY) = 5 6920 fstat(5, {st_mode=S_IFREG|0644, st_size=60, ...}) = 0 6920 read(5, "LoadModule tile_module /usr/lib/"..., 4096) = 60 6920 open("/usr/lib/apache2/modules/mod_tile.so", O_RDONLY) = 13 6920 read(13, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`+\0\0\0"..., 832) = 832 However when trying to go to the tiles, it is still looking for the raw files. 6920 read(14, "GET /openirishmap_tiles/0/0/0.pn"..., 8000) = 391 6920 gettimeofday({1273569758, 377149}, NULL) = 0 6920 stat("/var/www/technomancy.org/openirishmap_tiles/0/0/0.png", 0x7fffffa26510) = -1 ENOENT (No such file or directory) ... (some .htaccess checking omitted) ... 6920 lstat("/var/www/technomancy.org/openirishmap_tiles", {st_mode=S_IFDIR|0777, st_size=4096, ...}) = 0 6920 open("/var/www/technomancy.org/openirishmap_tiles/.htaccess", O_RDONLY) = -1 ENOENT (No such file or directory) 6920 lstat("/var/www/technomancy.org/openirishmap_tiles/0", 0x7fffffa26510) = -1 ENOENT (No such file or directory) 6920 gettimeofday({1273569758, 378393}, NULL) = 0 6920 write(8, "[Tue May 11 09:22:38 2010] [erro"..., 124) = 124 6920 brk(0xab8000) = 0xab8000 6920 writev(14, [{"HTTP/1.1 404 Not Found\r\nDate: Tu"..., 217}, {"<!DOCTYPE HTML PUBLIC \"-//IETF//"..., 310}], 2) = 527 I can't see any reference to "render" in this strace, nor any reference to the renderd socket. While this strace was running, renderd was running in the foreground and showed no hint of anything happening. It's as if mod_tile is loaded, but it's not being used. Another time I delibrately misspelled the socket filename in my apache conf, which should cause an error message (http://trac.openstreetmap.org/browser/applications/utils/mod_tile/mod_tile.c#L178), however once again, nothing happened. Rory
0x5373FB61.asc
Description: application/pgp-keys
0x5373FB61.asc
Description: application/pgp-keys
0x5373FB61.asc
Description: application/pgp-keys
0x5373FB61.asc
Description: application/pgp-keys
_______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/dev
