[UMN_MAPSERVER-USERS] Internal Server Error

[Daniele Margotti]

Here is it:
------------------------------------------------------------------------
----
  LAYER  #Elementi stradali
    NAME "Elementi_stradali"
  GROUP "A - Catasto delle strade"
  DATA "./cat_strade/road_elements.shp"
  TYPE line
  STATUS on
  CLASSITEM "ID_LINE"
  MAXSCALE 50000
    MINSCALE 0
  TRANSPARENCY 100
    TRANSFORM true
  SYMBOLSCALE 2000
  HEADER "./templates/nocsup_re_header.html"
  FOOTER "./templates/nocsup_re_footer.html"
    METADATA
   "Oggetto"    "Elementi stradali"
      "Data creazione"    "03/03/2004"
      gix_layername        "Elementi_stradali"
      gix_layerfieldnames
"LAYER|ID_DATASET|ID_LINE|SPLIT|CLASS|ID_EDGE|FROMP|TOP|SOURCE|UFFICIALE
|CONVENZION|PROPRIETAR|GESTORE|AMMINISTRA|TECNICO|LUNGHEZZA|DIVISIONE|DI
REZIONE|DENOMIN|PERCORSO|"
      gix_layerfieldalias
"Layer|Id_dataset|Id_line|Split|Class|Id_edge|Fromp|Top|Source|Ufficiale
|Convenzion|Proprietar|Gestore|Amministra|Tecnico|Lunghezza|Divisione|Di
rezione|Denomin|Percorso|"
      wms_abstract                     "fiorea Elementi stradali ** Gix
Generated MapFile"
      wms_title            "Elementi stradali"
      wms_srs              "NONE"
    END
    CLASS
      NAME 'Road elements'
      TEMPLATE "./templates/nocsup_re_query.html"
   STYLE
    COLOR 0 0 0
    SYMBOL "punto"
    SIZE 4
    ANTIALIAS TRUE
   END
   STYLE
    COLOR 0 0 255
    SYMBOL "punto"
    SIZE 2
    ANTIALIAS TRUE
   END
    END #CLASS
  END  # LAYER
------------------------------------------------------------------------
----
 
As I told in another message, I can browse the map (and this layer)
until I remain out of certain extents that give me error.
 
    Daniele
 

-----Messaggio originale-----
Da: Skweda O'Bomsawin [mailto:sobomsawin at kassini.com] 
Inviato: lunedì 6 dicembre 2004 15.30
A: 'Daniele Margotti'; MAPSERVER-USERS at LISTS.UMN.EDU
Oggetto: RE : [UMN_MAPSERVER-USERS] Internal Server Error



Most of the time, internal server error is caused by a syntax error in
the mapfile.  Can you post the Elementi_stradali layer section of your
mapfile?

 

Skweda O'Bomsawin

 

-----Message d'origine-----
De : UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] De
la part de Daniele Margotti
Envoyé : 6 décembre 2004 07:35
À : MAPSERVER-USERS at LISTS.UMN.EDU
Objet : [UMN_MAPSERVER-USERS] Internal Server Error

 

Hi list,

I use CGI MapServer 4.2.3 on a RH9 with Apache 2.0.50:

 

<!-- MapServer version 4.2.3 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG
OUTPUT=WBMP OUTPUT=PDF SUPPORTS=FREETYPE INPUT=EPPL7 INPUT=OGR
INPUT=GDAL INPUT=SHAPEFILE -->

All works, but I have a map that returns an "Internal Server Error" when
I try to zoom and show a certain extent with a specific layer.

I think the problem is due to the shapefile (or a part of it), but...
how can I be sure of it?

 

 

The browser only show the "Internal Server Error" page.

The Apache error log says: "[Mon Dec 06 07:13:04 2004] [error] [client
172.16.20.4] Premature end of script headers: mapserv"

 

 

I compiled MapServer with --enable-debug, set "DEBUG TRUE" in the map
section of the mapfile, and tried to use shp2img with these results:

------------------------------------------------------------------------
----

[root at redhat cs]# /dati/geobase/bin/shp2img -m cs.map -o
/dati/daniele.png -e 2491361 4510665 2492415 4511455
[Mon Dec  6 07:24:37 2004].748031 msDrawMap(): Layer 0
(Confini_comunali), 0.040s
[Mon Dec  6 07:24:41 2004].893212 msDrawMap(): Layer 1
(Base_cartografica), 4.145s
[Mon Dec  6 07:24:41 2004].908452 msDrawMap(): Layer 2 (Edifici), 0.015s
[Mon Dec  6 07:24:41 2004].918383 msDrawMap(): Layer 3 (Aree_traffico),
0.010s
Segmentation fault

------------------------------------------------------------------------
----

[root at redhat cs]# /dati/geobase/bin/shp2img -m cs.map -o
/dati/daniele.png -e 2491361 4510665 2492415 4511455 -l
Elementi_stradali
Segmentation fault

------------------------------------------------------------------------
----

 

When shp2img processes the "bad" layer ('Elementi_stradali'), it exits
with a 'Segmentation fault' and without a more explicit error message.

 

I launched the following command (where "road_elements.shp" is the
probably bad shapefile):

[root at redhat cat_strade]# ogrinfo -al road_elements.shp -spat 2491361
4510665 2492415 451145

 

It returns a 85 Kb output with apparently no detected errors.

 

 

How can I understand where the error lies?

Is there a more powerful debug tool?

 

Thank you,

    Daniele

 


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