Hi vecozo,

Welcome to MSDN newsgroup.
From your description, you're encountering some OOM exception in your
webservice application in production environment. Based on my understanding:

OutOfMemoryException¡¯s usually occurs when the GC cannot allocate the new
object in an existing space in the heap and so tries to allocate a new
segment but cannot due to lack of large enough continuous virtual address
space segment.  Also, though ASP.NET worker process or application
pool(iis6) has recycling setting on physical memory usage limitation, there
still have some cases the runtime fail to allocate a block of memory before
physical memory usage hit the recycle limit...  e.g some times our
application's code cause many heap fragment that kill those available large
VM blocks...    

And for production environement, it'll be much harder to troubleshot than
dev environement... Here are some related msdn referece on debugging .net
webservice or ASP.NET application in production environment which including
some production memory debugging introduction...

#Debugging Production Problems in Your XML Web Service
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnservice/h
tml/service12192001.asp

#Production Debugging for .NET Framework Applications
http://msdn.microsoft.com/library/en-us/dnbda/html/DBGrm.asp?frame=true

In addition, due to the nature of such problem, if you feel it an urgent
issue, I'd suggest you contact PSS for further assistance which will
provide some thorough throubleshooting like dump analyze or live
debugging....

Hope helps. Thanks,

Steven Cheng
Microsoft Online Support

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Thread-Topic: OutOfMemoryException: major production problems
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Subject: OutOfMemoryException: major production problems
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Hi,

On our production servers we receive the following events (in more detail
below)

* HTTP/ASMX Message Receive Failure: System.OutOfMemoryException: [Resource
lookup failed - infinite recursion detected.  Resource name:
Exception_WasThrown] (WSE2)

* Details: System.OutOfMemoryException: Exception of type
System.OutOfMemoryException was thrown.. (Application)

* System.OutOfMemoryException: Exception of type
System.OutOfMemoryException
was thrown. (WSE2)

* Setup Error: Failed to load resources from resource file
Please check your Setup. (.NET Runtime)

We run Windows 2003 Server and have .NET framework 1.1 installed. Most
memory is allocated in the gen 2 heap. Our customers receive either an
OutOfMemory exception (very embarrassing) or a service unavailable message.
Problems seem to have started when the load to our webservers increased
(dramatically). Of course we increased the number of servers, but the
OutOfMemory Exception in a managed environment seems odd: shouldn’t the
process recycle or garbage collect, or just return a server busy message
(which is does as well, sometimes)?

Does this sound familiar to anyone? We have initiated a first attempt to
debug using a dumpfile created with ADPlus, but so far no results are
available. Any references to professional experts in asp.net production
debugging �preferably in Europe / the Netherlands �are appreciated as
well.

Regards,
Martijn Kaag

______________________________
www.VECOZO.nl

Event 1:
_____________________________
Event Type:    Error
Event Source:    Microsoft WSE 2.0
Event Category:    None
Event ID:    0
Date:        3-1-2006
Time:        21:07:55
User:        N/A
Computer:    WBS_SERVER04
Description:
HTTP/ASMX Message Receive Failure: System.OutOfMemoryException: [Resource
lookup failed - infinite recursion detected.  Resource name:
Exception_WasThrown]

For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.

Event 2:
______________________________
Event Type:    Error
Event Source:    Application
Event Category:    None
Event ID:    0
Date:        3-1-2006
Time:        20:47:23
User:        N/A
Computer:    WBS_SERVER04
Description:
The description for Event ID ( 0 ) in Source ( Application ) cannot be
found. The local computer may not have the necessary registry information
or
message DLL files to display messages from a remote computer. You may be
able
to use the /AUXSOURCE= flag to retrieve this description; see Help and
Support for details. The following information is part of the event: Error
publishing logentry.

Details: System.OutOfMemoryException: Exception of type
System.OutOfMemoryException was thrown..

Event 3:
______________________________
Event Type:    Error
Event Source:    Microsoft WSE 2.0
Event Category:    None
Event ID:    0
Date:        3-1-2006
Time:        20:45:57
User:        N/A
Computer:    WBS_SERVER04
Description:
System.OutOfMemoryException: Exception of type System.OutOfMemoryException
was thrown.

For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.

________________________________________________
Event Type:    Error
Event Source:    .NET Runtime
Event Category:    None
Event ID:    0
Date:        3-1-2006
Time:        17:51:22
User:        N/A
Computer:    WBS_SERVER04
Description:
The description for Event ID ( 0 ) in Source ( .NET Runtime ) cannot be
found. The local computer may not have the necessary registry information
or
message DLL files to display messages from a remote computer. You may be
able
to use the /AUXSOURCE= flag to retrieve this description; see Help and
Support for details. The following information is part of the event: .NET
Runtime version 1.1.4322.2300- Setup Error: Failed to load resources from
resource file
Please check your Setup.