[mapserver-users] AGG vs GD rendering shows no difference

[Adrian Popa]

Hello David,

I got the 500 errors from the http error log file. Unfortunately no 
additional information is provided.
I added the MS_ERRORFILE and DEBUG statements to my map file and 
although the errorfile is created, I don't get any other information 
(neither when the map loads perfectly, nor when it dies with premature 
end of script headers.

I read RFC 28 (http://mapserver.org/development/rfc/ms-rfc-28.html) and 
they specified that the server should be compiled with 
-DENABLE_STDERR_DEBUG, so I recompiled mapserver:
CFLAGS=-DENABLE_STDERR_DEBUG ./configure  --with-freetype --with-png 
--with-agg=../agg-2.5 --with-proj --with-ogr --with-gdal --with-xml2 
--with-wfs --with-wcs --with-wmsclient --with-wfsclient --with-postgis 
--with-threads --with-sos --with-mygis --with-geos --with-tiff

I used the new binary and unfortunately nothing changed :(

My (relevant part of the) mapfile looks like this:

MAP 
                                                                                                                                                                                  

  CONFIG  "MS_ERRORFILE" 
"/tmp/mapserver.log"                                                                                                                                       

  CONFIG  "MS_DEBUGLEVEL" 
"5"                                                                                                                                                       

  DEBUG 5                        
...
END

What else can I try?
Regards,

David Nugent wrote:
> On Tue, 16 Jun 2009 20:58:22 +1000, Adrian Popa 
> <adrian_gh.popa at romtelecom.ro> wrote:
>
>> Thank you for your suggestion.
>>
>> I have corrected the mapfile ( added IMAGETYPE 'AGG'), however, when 
>> I try to load the map, I get a 500 web server error:
>>
>> [Tue Jun 16 13:43:25 2009] [error] [client 80.97.196.77] Premature 
>> end of script headers: mapserv, referer: http://terra/msmap/testmap.pl
>>
>> It seems to me that mapserv dies and doesn't output any headers back. 
>> How could I find out the error message?
>
> The first place to check is the web server log. HTTP errors (and 500 
> is one) are usually visible there. I'm guessing that mapserver has a 
> problem parsing the map file and you can usually discover the line it 
> is having a problem with in the web server's log.
>
> The second level of logging is:
>
>     CONFIG "MS_ERRORFILE" "path_to_mapserver.log"
>
> which provides more detail, but you usually have to configure DEBUG ON 
> (or DEBUG 1-5) as well for this to be useful.
>
>
> Regards,
> David
>