Folks,

This is a broader question, but maybe somebody can help. I've set up a simple WFS based on GDAL with Perl bindings. The service loads a dataset from PostGIS copies it into a GML dataset in memory and serves it from there. Nice clean solution and works well. Then I tried to use it in a student exercise. The server (RHEL5, Apache 2.2.3) I use for this purpose is not very resourceful and WFS set up this way easily uses a lot of memory. Thus, when 10 students all made requests at the same time, all memory was used (apache logs have "Out of memory!" - I'm not sure where this comes from) and the service did not work (QGIS reacted by turning gray ad had to be killed).

Is there a way to refuse starting a service if there are not enough resources? This would lead to a much nicer response than gray QGIS.

Ari

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