[Tilecache] problem with mapnik layer

[Christopher Schmidt]

On Sun, May 10, 2009 at 11:10:48PM +0200, Luca Delucchi wrote:
> Hi everybody, i'm so newbye about tilecache, i read something about it
> and now i tried with a mapnik layer, my tilecache.cfg is this
> 
> [cache]
> type=Disk
> base=/var/www/osm_mapnik_tile
> 
> [osm-map]
> type=MapnikLayer
> mapfile=/home/luca/prova_mapnik_tile/mapnik/osm.xml
> bbox=1016346,5510430,1029706,5522881
> srs=EPSG:900913
> #resolutions=0.01274108886718750000,0.00637054443359375000,0.00318527221679687500,0.00159263610839843750,0.00079631805419921875
> 
> but when i tried to see the png i have this error
> 
> http://localhost/cgi-bin/tilecache.cgi/1.0.0/osm-map/0/0/0.png
> 
> An error occurred: PSQL error:
> FATAL:  Ident authentication failed for user "luca" in layer 'leisure'
>   File "/var/lib/python-support/python2.5/TileCache/Service.py", line
> 287, in cgiHandler
>     format, image = service.dispatchRequest( params, path_info,
> req_method, host )
>   File "/var/lib/python-support/python2.5/TileCache/Service.py", line
> 205, in dispatchRequest
>     return self.renderTile(tile, params.has_key('FORCE'))
>   File "/var/lib/python-support/python2.5/TileCache/Service.py", line
> 138, in renderTile
>     data = layer.render(tile)
>   File "/var/lib/python-support/python2.5/TileCache/Layer.py", line
> 411, in render
>     return self.renderTile(tile)
>   File "/var/lib/python-support/python2.5/TileCache/Layers/Mapnik.py",
> line 38, in renderTile
>     mapnik.load_map(m,self.mapfile)
> 
> My xml file is a good file because if i try it with mapnik i can print
> a image, have you some advice for solve the problem?

Your xml file can't be used when running as the www-data user. You'll
need to either fix that, or chose a method of operation that means
you're not running as the www-data user.

Regars,
-- 
Christopher Schmidt
MetaCarta