[fdo-trac] #401: King.Oracle 0.7.3 (0.7.4) Memory Leak with MGOS 2.0 (2.0.1, 2.0.2)

[FDO]

#401: King.Oracle 0.7.3 (0.7.4) Memory Leak with MGOS 2.0 (2.0.1, 2.0.2)
-----------------------------------+----------------------------------------
   Reporter:  fisher               |       Owner:  haris
       Type:  defect               |      Status:  new  
   Priority:  critical             |   Milestone:  3.4.0
  Component:  KingOracle Provider  |     Version:  3.3.0
   Severity:  3                    |    Keywords:       
External_id:                       |  
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 I have been faced with a problem of memory leak by working with MGOS 2.0.2
 (2.0.1, 2.0) and FDO-Provider King. Oracle 0.7.4 (0.7.3). In our base we
 have only 10000 objects.
 The problem appears by the typical work with the map (distance, approach).
 I have sampled the change of used memory after each operation:

 {{{
                 RAM     VM      CPU
 Time
 Start Service   40      36      0.01
 Load Preview    64      58      0.011
 Zoom In         65      59      0.014
 Zoom Out        68      62      0.020
 Zoom In         69      63      0.024
 Zoom Out        72      66      0.030
 Zoom In         73      67      0.024
 Zoom Out        76      70      0.040
 Zoom In         77      71      0.043
 Zoom Out        81      76      0.049
 ...             ...     ...     ...
                 1570    1480
 }}}

 By the reaching of the volume of used memory up to 1570Mb the service
 doesn’t respond to any request. After that the process mgserver.exe is
 crashed.

 Data from the file Error.log:
 {{{
 <2008-09-25T13:26:14>
  Error: Out of memory.
         bad allocation
  StackTrace:
   - MgRenderingServiceHandler.ProcessOperation line 83 file
 d:\build\mapguide_open_source_v2.0\build_30.11\mgdev\server\src\services\rendering\RenderingServiceHandler.cpp
   - MgOpRenderDynamicOverlay.Execute line 109 file
 d:\build\mapguide_open_source_v2.0\build_30.11\mgdev\server\src\services\rendering\OpRenderDynamicOverlay.cpp
   - MgServerRenderingService.RenderDynamicOverlay line 305 file
 d:\build\mapguide_open_source_v2.0\build_30.11\mgdev\server\src\services\rendering\ServerRenderingService.cpp
 Out of memory.
 bad allocation
 }}}

 Oracle Client 10.2.0.1 / 10.2.0.3
 Oracle Instant Client 10.2.0.1 / 10.2.0.3

 OS: Microsoft Windows Server 2003 / Windows XP

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Ticket URL: <http://trac.osgeo.org/fdo/ticket/401>
FDO <http://fdo.osgeo.org/>
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