Hi,
We have experienced a problem with the MGOS 2.0 installation. After some time
with moderate load it just returns grey images until the "Mapguide Server v2.0"
service is restarted. We are using the WebApi with the GETMAPIMAGE mapagent
operation.
A quick look in the Error.log file reveals some details about the problem :
<2008-03-27T10:54:37> Anonymous
Error: Failed to stylize layer: landlayer
An exception occurred in FDO component.
SDF connect failed. File does not exist or cannot be opened in
specified access mode.
StackTrace:
- MgMappingUtil.StylizeLayers line 776 file
d:\buildforgeprojects\mapguide_open_source_v2.0\build_23.8\mgdev\server\src\services\mapping\MappingUtil.cpp
Failed to stylize layer: landlayer
An exception occurred in FDO component.
SDF connect failed. File does not exist or cannot be opened in specified access
mode.
After restarting the Mapguide server service everything works fine for a while.
We are using a web loadtester to reproduce the problem. The problem occurs with
moderate load ( 2 users) continuously requesting maps for a set of areas. After
about 2 hours the mapguide server ends up in the "gray state".
Does anyone have any ideas about this problem ?
Br
Trond Tunheim, CellVision AS
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