We meet the same problem in our project.
The memory increases when we are using mgservices.we can find any api to 
release the memory.
In the beginning, the memory is about 54Mb,it creashes when the memory goes to 
220Mb.
Now,we have to use a .bat file to restart the server before it goes to the dead 
line of the memory,before it gets to 200Mb.
we restart the server in the midnight automatically.
This is our tempory ways to solve this problem.
by the way ,if u only pan or zoom the layer in tile mode.memory wonn't 
increase,only if u use mgservices to add or edit the 
information of the layer.
If u use tiled map,tile the whole map before u publish it.the tile processing 
cause crash very quickly.
hope can help.

2008-05-20 



xuzhengeology 



发件人: G.E.O.-Consulting_/_Hans_Morschell 
发送时间: 2008-05-20  15:57:17 
收件人: MapGuide Users Mail List 
抄送: 
主题: [mapguide-users] mgserver process hangs / memory usage 
 
hallo,
 
we are using MGOS in the following environment:
 
-          MGOS 2.0
-          IIS6 on MS Server2003
-          ASP application / .Net environment
-          Server with dual processor / 4 GB RAM
 
our application has one map, one layout, about 50 layers, some MRSID, some TIFF 
and shape files, user can calculate a route, therefore we have 4 dynamic layers 
in session repository
 
The mgserver process occasionally crashes and monitoring the memory usage I can 
see the following behaviour:
 
After starting the mgserver process the use of memory continously increases, 
the pagefile size grows permanetly, and both of them do never decrease.
 
Error messages in mgserver logfiles:
-          out of memory, bad allocation
-          failed to stylize layer
-          no more fdo connections
-          unexpected exception
-          ressource busy
the error messages are not allways identical.
 
The mgserver process hangs completely, can not be restarted so I have to 
restart the server.
 
Does anybody have a similar situation ?
 
I didn’t change settings in serverconfig.ini, any hints, what to change there ?
 
Why does the mgserver process not deallocate memory, may be there is something 
wrong in my IIS6 configuration ?
 
Thanks for any help, Hans
 

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