[Cartoweb-users] Premature end of script headers

[Oliver Christen]

After having asked around, it seems this kind of error may come from an 
uncritical config error (like damaged fonts or symbols), so sometimes it 
works and sometimes not.
If your operating system is linux, you can try to run apache with strace so 
you can pinpoint exactly what is the problem cause. This is delicate though.

here is a documentation on how to launch apache with strace
http://httpd.apache.org/dev/debugging.html#truss
this exemple is with truss, but you can do the same with strace, like this: 
strace -f -o/tmp/log /usr/sbin/apache2
the log file will contain all the system calls within apache, so the only 
part that will interest you is the ones just before the error occure.

regards
Oliver


> On Mon, 2006-10-02 at 08:04 +0200, Oliver Christen wrote:
>> can you notice if the error occure especially when a certain layer is
>> selected?
> The error occurs only when two specific layers are loaded at the same
> time, one is the raster, and the other is a shapefile loaded in a
> postgres DB.
> If I load them separately, even with other layers, they work fine.
> Every other combination of layers and raster works fine
> The problem is that I have this error only when I load these at the same
> time...
>
>> otherwise I can only think about a memory limitation, maybe check the 
>> value
>> in your Apache config
> I have raise it to 32M
>
>> also what version of mapserver are you using  ?
> MapServer Version
> MapServer version 4.8.4 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP
> OUTPUT=PDF OUTPUT=SWF OUTPUT=SVG SUPPORTS=PROJ SUPPORTS=FREETYPE
> SUPPORTS=WMS_SERVER SUPPORTS=THREADS INPUT=POSTGIS INPUT=GDAL
> INPUT=SHAPEFILE
> PHP MapScript Version
> ($Revision: 1.242.2.2 $ $Date: 2006/03/16 21:03:01 $)
>
> thanks a lot!
> bye
> tony
>
>