[mapserver-users] FCGI and SVG output goes to STDERR?

[Nick Webb]

List,

I've really tried hard to nail this down, but it makes no sense to me.  I'm
not a map guy, but am a system administrator for one.

We have a mapserver setup that works fine for both PNG and SVG when we use
the standard apache cgi module.  When we switch to mod_fcgid, however, SVG
displays no output in the browser and instead seems to output proper
SVG/XML to the apache error log!  PNG continues to work fine.

I'm flabbergasted and nothing I try seems to work.  I even set it up on
another server and I get the same result, given I'm following the same
build steps.

Any ideas on where I can go next?

Perhaps the SVG is not really valid, but I've copied and pasted the XML/SVG
from the error_log to a static file, and that also displays fine via a
browser.

Here is the error_log output:

<?xml version="1.0" encoding="UTF-8"?>
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="
http://www.w3.org/1999/xlink" width="200pt" height="154pt" viewBox="0 0 200
154" version="1.1">
<g id="surface0">
. . .
</g>
</svg>
[Tue Jul 02 00:12:11.947149 2013] [fcgid:warn] [pid 2398] [client
50.197.85.9:2118] mod_fcgid: stderr: CGI Request 1 on process 2405
[Tue Jul 02 00:12:11.947213 2013] [fcgid:warn] [pid 2398] [client
50.197.85.9:2118] mod_fcgid: stderr: msDrawMap(): rendering using
outputformat named svg (CAIRO/SVG).
[Tue Jul 02 00:12:11.947223 2013] [fcgid:warn] [pid 2398] [client
50.197.85.9:2118] mod_fcgid: stderr: msDrawMap(): WMS/WFS set-up and query,
0.000s
[Tue Jul 02 00:12:11.947230 2013] [fcgid:warn] [pid 2398] [client
50.197.85.9:2118] mod_fcgid: stderr: msDrawMap(): Layer 0 (thematic), 0.040s
[Tue Jul 02 00:12:11.947238 2013] [fcgid:warn] [pid 2398] [client
50.197.85.9:2118] mod_fcgid: stderr: msDrawMap(): Drawing Label Cache,
0.000s
[Tue Jul 02 00:12:11.947245 2013] [fcgid:warn] [pid 2398] [client
50.197.85.9:2118] mod_fcgid: stderr: msDrawMap() total time: 0.040s
[Tue Jul 02 00:12:11.947253 2013] [fcgid:warn] [pid 2398] [client
50.197.85.69:2118] mod_fcgid: stderr: msSaveImage(stdout) total time: 0.005s
[Tue Jul 02 00:12:11.947261 2013] [fcgid:warn] [pid 2398] [client
50.197.85.9:2118] mod_fcgid: stderr: mapserv request processing time
(msLoadMap not incl.): 0.045s
[Tue Jul 02 00:12:11.947268 2013] [fcgid:warn] [pid 2398] [client
50.197.85.9:2118] mod_fcgid: stderr: msFreeMap(): freeing map at 0x8881a0.


DEBUG 5 is set logging to the same file (stderr).


./mapserv -v
MapServer version 6.2.1 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG SUPPORTS=PROJ
SUPPORTS=GD SUPPORTS=AGG SUPPORTS=FREETYPE SUPPORTS=CAIRO SUPPORTS=ICONV
SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT SUPPORTS=WFS_CLIENT
SUPPORTS=WCS_SERVER SUPPORTS=FASTCGI SUPPORTS=THREADS SUPPORTS=GEOS
INPUT=JPEG INPUT=POSTGIS INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE


Thanks,
Nick
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