[mapguide-trac] #187: 1.2.0 Beta 2, GDAL and Tiling Service crashes

[MapGuide Open Source]

#187: 1.2.0 Beta 2, GDAL and Tiling Service crashes
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   Reporter:  amorsell  |       Owner:       
       Type:  defect    |      Status:  new  
   Priority:  high      |   Milestone:       
  Component:  Server    |     Version:  1.2.0
   Severity:  major     |    Keywords:       
External_id:            |  
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 I am using the GDAL provider in 1.2.0 beta 2 to access a directory of
 about 850 ECW images.  Each image is about 25 MB and there is a total of
 20 GB in the directory.  Creating a layer with a zoom threshold of
 1:50,000 actually works pretty well, but is still too slow due to the GDAL
 provider's lack of tile indexing.  We would like to use base layer tiles
 instead.  But, upon initial tests this locks up the MG server service.
 This is easily replicated after restarting the service.  The log file
 returns an error like:

 <2007-05-31T19:17:10>                   Anonymous
  Error: Failed to stylize layer: Austin_2006_aerials_ECW
         An unclassified exception occurred.
  StackTrace:
   - MgStylizationUtil.StylizeLayers line 923 file
 c:\build_bond_area\mapguide_open_source_v1.2\build_11.8\mgdev\server\src\services\mapping\StylizationUtil.cpp
 Failed to stylize layer: Austin_2006_aerials_ECW
 An unclassified exception occurred.

 This happens both with the service running normally and in interactive
 mode.  Interactive mode does not yield any meaningful messages. The
 mgserver.exe process is still resident in addition to four MapAgent.exe
 processes.  If I look at the tile folders, the folders have been created,
 but only one PNG actually created in one folder (R0/C0 folder).  However,
 there are four .lck files in that folder.  All have the same time stamp
 and are 0 KB in size.

 I even tried this with just two images and upon succesive zooms to force
 tiles to create at the various zoom factors, I can readily crash the
 server.

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Ticket URL: <http://trac.osgeo.org/mapguide/ticket/187>
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