Crystal Reports 2008 - Report Load error - Memory Leak Error?

Question

Hello
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We have a problem with Crystal Reports 2008 with .NET 2.0.
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CrystalDecisions.CrystalReports.Engine, Version=12.0.2000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304
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The problem is that during high amount of report producing, errors in eventlog pops up and the production of reports using <br>
Crystal Reports stops.
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Below are examples of the three most common event logs.
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We have tried to implement a cleanup method both as a destructor (with a global ReportDocument rdoc variable) and using direct call to cleanUpDoc() method when finished with loading doc:
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~IOServerClass()
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            cleanupDoc();
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        private void cleanupDoc()
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            try
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                if (rdoc != null)
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                    rdoc.Close();
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                    rdoc.Dispose();
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                    rdoc = null;
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                this.CleanGlobalEvents();
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                System.GC.Collect();
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The doc is loading using the "normal" method (in-process).
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try
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                    rdoc = new ReportDocument();
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                    rdoc.Load(fullpathandreport); 
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               catch (Exception ex)
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                cleanupDoc();
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...process doc....
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cleanupDoc();
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Furthermore we have tried during Scalable tests of the system - but cannot produce the below errors ourselves. Only the customer can.
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Please help with solving this problem.
Is the above advisable to do?
Should the document be loaded in another way?
Is it a memory leak?
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Regards
Kristian
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event logs:
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#1
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Event Type:     Error
Event Category:     None
Event ID:     1102
Date:          12-02-2010
Time:          10:22:05
User:          N/A
Description:
IO_ServerClass.IO_ServerPrepareReportBeforeExecute() Report load Error:
Loading reportfile=C:\Inetpub\wwwroot\xxx\Reports\321.rpt
Source=CrystalDecisions.CrystalReports.Engine
Message=Load report failed.
Stacktrace=   at
CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.EnsureDocumentIsOpened()
   at CrystalDecisions.CrystalReports.Engine.ReportDocument.Load(String filename,
OpenReportMethod openMethod, Int16 parentJob)
   at CrystalDecisions.CrystalReports.Engine.ReportDocument.Load(String filename)
   at xxx.IOServer2.IOServerClass.IO_ServerPrepareReportBeforeExecute(String
WebRootRelPathNameRepName, String init, Hashtable ParmsVals, Int32 JobId, Int32 JobStep,
Page webpage) in C:\Documents and Settings\xxx\My Documents\Visual Studio 2008\Projects\xxx.IOServer2\IOServerClassClassic.cs:line 290
InnerSource:Analysis Server
InnerMes:
Error in File 321 {19463E3B-D404-45EB-88AE-5722A7FF9E90}.rpt:
The request could not be submitted for background processing.
InnerStack:
   at
CrystalDecisions.ReportAppServer.ClientDoc.ReportClientDocumentClass.Open(Object&
DocumentPath, Int32 Options)
   at CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.Open(Object&
DocumentPath, Int32 Options)
   at
CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.EnsureDocumentIsOpened()
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#2
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IO_ServerClass.IO_ServerPrepareReportBeforeExecute() Report load Error:
Loading reportfile=C:\Inetpub\wwwroot\xxx\Reports\321.rpt
Source=CrystalDecisions.CrystalReports.Engine
Message=Creating an instance of the COM
component with CLSID {D7F5D7C3-B06C-4CAC-BC47-A06E66D2EE9B} from the IClassFactory failed
due to the following error: 8007000e.
Stacktrace=   at
CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.CreateRptDoc()
   at CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper..ctor()
   at CrystalDecisions.CrystalReports.Engine.ReportDocument.Initialize()
   at CrystalDecisions.CrystalReports.Engine.ReportDocument..ctor()
   at Kimik.IOServer2.IOServerClass.IO_ServerPrepareReportBeforeExecute(String
WebRootRelPathNameRepName, String init, Hashtable ParmsVals, Int32 JobId, Int32 JobStep, Page webpage) in C:\Documents and Settings\xxx\My Documents\Visual Studio 2008\Projects\xxx.IOServer2\IOServerClassClassic.cs:line 289
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#3
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IO_ServerClass.IO_ServerPrepareReportBeforeExecute() Report load Error:
Loading reportfile=C:\Inetpub\wwwroot\xxx\reports\340.rpt
Source=CrystalDecisions.CrystalReports.Engine
Message=Load report failed.
Stacktrace=   at
CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.EnsureDocumentIsOpened()
   at CrystalDecisions.CrystalReports.Engine.ReportDocument.Load(String filename,
OpenReportMethod openMethod, Int16 parentJob)
   at CrystalDecisions.CrystalReports.Engine.ReportDocument.Load(String filename)
   at Kimik.IOServer2.IOServerClass.IO_ServerPrepareReportBeforeExecute(String
WebRootRelPathNameRepName, String init, Hashtable ParmsVals, Int32 JobId, Int32 JobStep,
Page webpage) in C:\Documents and Settings\xxx\My Documents\Visual Studio 2008
\Projects\xxx.IOServer2\IOServerClassClassic.cs:line 290
InnerSource:CrystalDecisions.ReportAppServer.ClientDoc
InnerMes:
Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
InnerStack:
at CrystalDecisions.ReportAppServer.ClientDoc.ReportClientDocumentClass.Open(Object&
DocumentPath, Int32 Options)
   at CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.Open(Object&
DocumentPath, Int32 Options)
   at
CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.EnsureDocumentIsOpened()
Edited by: kristians on Feb 16, 2010 2:57 PM

Answer 1

Hi;
First, ensure you have the latest service pack / hot fix for your version of Crystal Reports, and that the client has the same updates as well. Fix Pack 2.4 is the current latest, and can be downloaded from our downloads section.
One of the errors is the Background Processing error, so have a look at the following article:
http://www.sdn.sap.com/irj/boc/index?rid=/library/uuid/50a6f5e8-8164-2b10-7ca4-b5089df76b33&overridelayout=true
Regards,
Jonathan
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