Hi all,
I am trying to load a MAP file that does a JOIN to connect a shapefile with a
geolinked dbf. But, when I try to load the map file in a browser from our
Linux server, I get a "Premature end of script headers: mapserv" in the Apache
error_log. I've read a bunch of posts to the forum and all seem to suggest that
"Premature end of script headers" messages are usually the result of libraries
not being loaded properly. How can I learn what library is missing or not
properly loading? I don't get any additional message helping to identify this
in Apache's error_log.
I've done a little testing and find that just using OGR seems to be the
problem. I've created a simple map file with a single layer in it and set the
following attributes:
LAYER
NAME "ecozones"
DATA "ecozones"
# CONNECTION "/ms4w_1.4.0/Apache/htdocs/dev1/data/ecozones.shp"
# CONNECTIONTYPE OGR
# DATA "SELECT * FROM ecozones"
:
END
In the browser, when I enter the following URL with the above definition, the
image appears fine:
http://host/cgi-bin/mapserv?map=/server_path/Apache/htdocs/map_nojoin.map&mode=map&layer=ecozones
However, if I comment the 'DATA "ecozones"' line and uncomment the lines
referring to OGR, the image displays correctly from a Windows server; so, I'm
fairly confident the syntax in the file is fine. But, the same map file (with a
different path to the ecozones.shp file obviously) gives the "Premature end of
script headers" error.
Any pointers as to how I can identify what is causing the error are greatly
appreciated. I'm stuck!
Cheers,
jtm
Joanne T. McGraw
GIS Data Analyst / Analyste des données du SIG
Agriculture and Agri-Food Canada / Agriculture et Agroalimentaire Canada
Telephone/Téléphone: 613 759-6103
Facsimile/Télécopieur: 613 759-1937
960 Carling Ave, Bldg. 20, Rm. 1136
Ottawa, Ontario
K1A 0C6
[EMAIL PROTECTED]
www.agr.gc.ca/nlwis-snite
