lxml has been a cause of hanging in the server in the past.

Try uninstalling it, and then the server will fall back to using etree from 
other sources:

http://trac.mapnik.org/browser/tags/release-0.7.1/bindings/python/mapnik/ogcserver/wms130.py#L30

To find if lxml is installed and where it lives do:

$ python
>>> import lxml
>>> print lxml.__file__

If this fixes things then I would recommend installing lxml from source, as 
lxml is required for proper GetCapabilities response.

Dane


On Aug 30, 2010, at 2:15 AM, Daniel Behr wrote:

> Hello everyone,
> 
> I'm having problems getting Mapniks0.7.1 OGCServer up and running. 
> mod_python3.3.1 works fine with apache 2.2.3 on a SuSe SLES 10 server. The 
> browser shows 'hello world' and python errors, if provoked. On the other hand 
> Mapnik also works fine and I am able to render static images from OSM data in 
> a Postgres DB. BUT I am unable to get them linked! My Apache settings in 
> default-server.conf are:
> 
> <Directory "/srv/www/mp">
> PythonPath "['/srv/www/mp/'] + sys.path"
> AddHandler mod_python .py
> PythonHandler wms_mp
> PythonDebug On
> </Directory>
> 
> and the wms_mp.py script looks like this:
> 
> #!/usr/bin/env python
> import sys
> from mapnik.ogcserver.modserver import ModHandler
> sys.path.append('/opt/mapnik/utils/ogcserver')
> handler = ModHandler('/opt/mapnik/utils/ogcserver/ogcserver.conf')
> 
> PROBLEM:
> Sending a URL request like http://myserver/mp/wms_mp.py should return the 
> 'Welcome to Mapniks OGCServer' message, but the browser keeps loading (until 
> I stop it) without showing any reply or python error. The apache error log 
> only notes that mod_python is importing module '/srv/www/mp/wms_mp.py' at the 
> time the browser starts loading.
> As far as I can tell, the wms_mp.py script proceeds until the last line 
> handler = ModHandler(...) where the handler is not set, meaning that the 
> other scripts (modserver.py, common.py, importer.py...) in the chain are 
> properly called. All paths and files seem right, as any change made in one of 
> the scripts cause python errors in the browser.
> 
> I compared my working installation on Ubuntu10 with this one on the SLES10 
> server, tweaked all components a lot last week, but now I am at my wits end.
> Nothing from the web like the nice 'SLES 10 installation tutorial' or similar 
> (solved) error reports mentioned exactly this problem.
> 
> Can someone help me please? Any ideas where to look or what to change?
> many thanks
> Daniel
> _______________________________________________
> Mapnik-users mailing list
> [email protected]
> https://lists.berlios.de/mailman/listinfo/mapnik-users

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