QGIS server 3 failed on debian 9

Question

I have install on a Debian 9 a qgis-server, python-qgis, apache2 and libapache2-mod-fcgid. Apache service is runnning.

I have a folder uder usr/lib/cgi-bin/ but when I request http://localhost//cgi-bin/test/qgis_mapserv.fcgi?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetCapabilities&MAP=projet_test.qgs

I have edited the conf file to enable fcgi.

Everything works on qgis-server 2.14 but not on qgis-server 3.

Any ideas?

Answer 1

What do you mean with "QGIS server 3 failed"?

To locate the origin of your problem, you should active error logs on different levels and post the outputs like:

• Apache error logs
• PostgreSQL error logs, in case your QGIS project uses layers from database
• QGIS Server debug log following the docs

I remember a problem I had when migrating to QGIS Server 3 which was related to a missing PATH variable described in this issue.

To solve this issue on Debian and Ubuntu I had to add add the following lines to /etc/apache2/sites-available/qgis-server.conf:

# FIX path to library see https://issues.qgis.org/issues/18230
FcgidInitialEnv QGIS_PREFIX_PATH "/usr"
SetEnv QGIS_PREFIX_PATH "/usr"