[mapguide-users] FDO OGR provider stops working with many layers

[Hans Milling]

Hi All

Using MGOS2.2 I have a problem with maps with many layers (like 100). Only
like 20 layers are visible on the map as default, but the map is not
working. This works fine using MGOS2.0.
I have then tried to validate the map in Maestro (When I could not preview
it), and I can see that at some point the ORG Feature source fails:
http://osgeo-org.1560.n6.nabble.com/file/n4358864/FDOError1.gif 

Then all the following OGR feature sources are reported as failed also.
After this, no OGR feature source at all is working. If I add a new Feature
Source or if I just open an existing one and test the connection it fails:
http://osgeo-org.1560.n6.nabble.com/file/n4358864/FDOError2.gif 

Only a restart of MGOS2.2 service resolves the problem.
When I validate the map again (after restart of service) it is not the same
feature source that breaks, sometimes a lot more are working and sometimes a
lot fewer. Common thing is that all the feature sources that follows when
the first one breaks, is not working. Seems to be a maximum number of file
handles or some other limit is met?

Have anyone experienced something similar?
Also does anyone know how to make FDO tell (log file?) a more detailed
description than just: "An exception occurred in FDO component."

I know perhaps this should go in the FDO forum, but since I can only
reproduce using MapGuide OpenSource 2.2, I created the message in this
forum.

Best regards hans Milling...

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