[fdo-trac] #284: .NET: Exceptions being thrown on IInserts/IUpdates involving large datasets

[FDO]

#284: .NET: Exceptions being thrown on IInserts/IUpdates involving large datasets
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   Reporter:  MaksimS  |       Owner:  gregboone
       Type:  defect   |      Status:  new      
   Priority:  major    |   Milestone:  3.3.1    
  Component:  FDO API  |     Version:  3.2.0    
   Severity:  3        |    Keywords:           
External_id:           |  
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 Managed wrapper seems to throw an error while performing perpetual
 IInserts/IUpdates involving large datasets (i.e. tens of thousands of
 feature instances). This keeps happening since god-knows-when, but let's
 set it to version 3.2.0 (continued to appear in 3.3.0 also).

 Exception being thrown:
 {{{
 - System.AccessViolationExceptions ("Attempted to read or write protected
 memory. This is often an indication that other memory is corrupt") thrown
 at
 OSGeo.FDO.Runtime.Disposable.Finalize() (Target Site: void
 ReleaseUnmanagedObject() )
 - C++ pure virtual function call errors.
 - Memory allocation failed errors.
 }}}

 There are also other types of exceptions fired here and there, scattered
 among other related projects (i.e. MapGuide) - possibly related to this:
 [http://trac.osgeo.org/mapguide/ticket/323]

 It's general opinion (me, Clayton) that something's buggy with managed
 wrapper and garbage collector - it's not disposing its underlying
 unmanaged resources in the correct order. As Clayton correctly pointed
 out: "...and that this problem will occur when the garbage collector comes
 around - hence the pseudo-randomness...", therefor a fuzziness on properly
 pinpointing source of the problem.

-- 
Ticket URL: <http://trac.osgeo.org/fdo/ticket/284>
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