[FWTools] GDAL hanging under Windows 2008 Server

Tamas Szekeres szekerest at gmail.com
Thu Feb 12 08:48:06 EST 2009


Do you have information about which function is hanging? Could you provide
your test data? I'm not sure about how the SharpMap GDAL connector is
currently working but I could probably write an equivalent test case to
reproduce it.

Best regards,


2009/2/12 Stephen Wealands <steve at wealands.net>

>  I'm using GDAL via the SharpMap mapping engine.  It makes use of the
> csharp wrappers to render imagery (in my case, ECW) to an image control on a
> web page.  I am currently running it under Windows 2008 Server.
> My problem is that I am finding that the gdal library is intermittently
> hanging when being requested for imagery.  I have got a log from
> ProcessMonitor here (
> http://spreadsheets.google.com/ccc?key=pnbsLIAZM8M_34TfXUVttcA) that shows
> where it occurs and thought someone here might be able to suggest what could
> be causing the problem.
> Rows 1-40 show a successful map creation operation (including display of
> ECW image).  Row 41 onwards shows what happens when the image is panned and
> gdal hangs.  Seems to be associated with 'gdalplugins', but I'm not sure
> what this is.  Row 64 is the line where it crashed.  Row 65 is the start of
> where I recycled the web app to get it back from hanging.
> Note that this runs fine much of the time and has never crashed when I am
> only displaying shapefiles.  However, when displaying raster images as well,
> this occasionally crashes and therefore gdal must be the involved somehow.
> Any ideas?
> Thanks, Stephen
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