SCOM alerts and event ID 4 in an Exchange Server 2010 SP2 organization that has Update Rollup 1 or later

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Article ID: 2784093 - View products that this article applies to.
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Symptoms

Assume that you install Update Rollup 1 for Microsoft Exchange Server 2010 Service Pack 2 (SP2) or a later update rollup that was released before Update Rollup 6 in an organization. Additionally, the organization is monitored by a Microsoft System Center Operations Manager (SCOM) server. In this situation, you receive the following SCOM alerts:

Alert: Exchange Control Panel connectivity (Internal) transaction failures.
Source: ECP - ServerName 
Path: ServerName - Site
Alert description: One or more of the ECP connectivity tests failed.
Detailed information:
Target: ServerName
Error: An exception was thrown by the Web service: The remote server returned an error: (500) Internal Server Error.

Alert: Exchange Control Panel connectivity (Internal) transaction failures.
Source: ECP - ServerName
Path: ServerName - Site
Alert description: One or more of the ECP connectivity tests failed.
Detailed information:
Target: ServerName
Error: The test failed to establish a session with server ServerName. The remote server returned an error: (500) Internal Server Error.

Additionally, the following event is logged in the Application log on the Exchange Server 2010 Client Access server:

Log Name:      Application
Source:        MSExchange Control Panel
Date:          Date
Event ID:      4
Task Category: General
Level:         Error
Keywords:      Classic
User:          N/A
Description:
Current user: User
Request for URL 'URL' failed with the following error:
System.Web.HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.ArgumentException: An item with the same key has already been added.
at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
at System.Collections.Generic.Dictionary`2.Add(TKey key, TValue value)
at Microsoft.Exchange.Data.PropertyBag.GetCalculatedPropertyValue(ProviderPropertyDefinition propertyDefinition)
at Microsoft.Exchange.Data.PropertyBag.get_Item(PropertyDefinition key)
at Microsoft.Exchange.Data.Directory.ADPropertyBag.get_Item(PropertyDefinition key)
at Microsoft.Exchange.Data.ConfigurableObject.get_Item(PropertyDefinition propertyDefinition)
at Microsoft.Exchange.Data.Directory.ADObject.get_Item(PropertyDefinition propertyDefinition)
at Microsoft.Exchange.Data.Directory.OwaSegmentationSettings.get_Item(ADPropertyDefinition owaFeature)
at Microsoft.Exchange.PowerShell.RbacHostingTools.RbacQuery.OwaSegmentationQueryProcessor.TryIsInRole(ExchangeRunspaceConfiguration rbacConfiguration)
at Microsoft.Exchange.PowerShell.RbacHostingTools.RbacQuery.RbacQueryProcessor.IsInRole(ExchangeRunspaceConfiguration rbacConfiguration)
at Microsoft.Exchange.PowerShell.RbacHostingTools.RbacPrincipal.IsInRole(String rbacQuery, Boolean& canCache)
at Microsoft.Exchange.PowerShell.RbacHostingTools.RbacPrincipal.IsInRole(String role)
at System.Web.Configuration.AuthorizationRule.IsTheUserInAnyRole(StringCollection roles, IPrincipal principal)
at System.Web.Configuration.AuthorizationRule.IsUserAllowed(IPrincipal user, String verb)
at System.Web.Configuration.AuthorizationRuleCollection.IsUserAllowed(IPrincipal user, String verb)
at System.Web.Security.UrlAuthorizationModule.IsUserAllowedToPath(HttpContext context, VirtualPath virtualPath)
at System.Web.SiteMapProvider.IsAccessibleToUser(HttpContext context, SiteMapNode node)
at System.Web.StaticSiteMapProvider.GetChildNodes(SiteMapNode node)
at Microsoft.Exchange.Management.ControlPanel._Default.CreateDataContract(SiteMapNode sNode)
at Microsoft.Exchange.Management.ControlPanel._Default.CreateDataContract(SiteMapNode sNode)
at Microsoft.Exchange.Management.ControlPanel._Default.CreateDataContract(SiteMapNode sNode)
at Microsoft.Exchange.Management.ControlPanel._Default.CreateNavTree()
at Microsoft.Exchange.Management.ControlPanel._Default.OnLoad(EventArgs e)
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
--- End of inner exception stack trace ---
at System.Web.UI.Page.HandleError(Exception e)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.ProcessRequest()
at System.Web.UI.Page.ProcessRequest(HttpContext context)
at ASP.default_aspx.ProcessRequest(HttpContext context)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)System.ArgumentException: An item with the same key has already been added.
at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
at System.Collections.Generic.Dictionary`2.Add(TKey key, TValue value)
at Microsoft.Exchange.Data.PropertyBag.GetCalculatedPropertyValue(ProviderPropertyDefinition propertyDefinition)
at Microsoft.Exchange.Data.PropertyBag.get_Item(PropertyDefinition key)
at Microsoft.Exchange.Data.Directory.ADPropertyBag.get_Item(PropertyDefinition key)
at Microsoft.Exchange.Data.ConfigurableObject.get_Item(PropertyDefinition propertyDefinition)
at Microsoft.Exchange.Data.Directory.ADObject.get_Item(PropertyDefinition propertyDefinition)
at Microsoft.Exchange.Data.Directory.OwaSegmentationSettings.get_Item(ADPropertyDefinition owaFeature)
at Microsoft.Exchange.PowerShell.RbacHostingTools.RbacQuery.OwaSegmentationQueryProcessor.TryIsInRole(ExchangeRunspaceConfiguration rbacConfiguration)
at Microsoft.Exchange.PowerShell.RbacHostingTools.RbacQuery.RbacQueryProcessor.IsInRole(ExchangeRunspaceConfiguration rbacConfiguration)
at Microsoft.Exchange.PowerShell.RbacHostingTools.RbacPrincipal.IsInRole(String rbacQuery, Boolean& canCache)
at Microsoft.Exchange.PowerShell.RbacHostingTools.RbacPrincipal.IsInRole(String role)
at System.Web.Configuration.AuthorizationRule.IsTheUserInAnyRole(StringCollection roles, IPrincipal principal)
at System.Web.Configuration.AuthorizationRule.IsUserAllowed(IPrincipal user, String verb)
at System.Web.Configuration.AuthorizationRuleCollection.IsUserAllowed(IPrincipal user, String verb)
at System.Web.Security.UrlAuthorizationModule.IsUserAllowedToPath(HttpContext context, VirtualPath virtualPath)
at System.Web.SiteMapProvider.IsAccessibleToUser(HttpContext context, SiteMapNode node)
at System.Web.StaticSiteMapProvider.GetChildNodes(SiteMapNode node)
at Microsoft.Exchange.Management.ControlPanel._Default.CreateDataContract(SiteMapNode sNode)
at Microsoft.Exchange.Management.ControlPanel._Default.CreateDataContract(SiteMapNode sNode)
at Microsoft.Exchange.Management.ControlPanel._Default.CreateDataContract(SiteMapNode sNode)
at Microsoft.Exchange.Management.ControlPanel._Default.CreateNavTree()
at Microsoft.Exchange.Management.ControlPanel._Default.OnLoad(EventArgs e)
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)


Cause

This issue occurs because of a race condition that occurs when multiple threads try to set a certain property at a same time.

Resolution

To resolve this issue, install the following update rollup:
2746164 Description of Update Rollup 6 for Exchange Server 2010 Service Pack 2

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More information

For more information about Exchange Control Panel connectivity transaction failures, go to the following Microsoft website:
Exchange Control Panel connectivity (Internal) transaction failures

Properties

Article ID: 2784093 - Last Review: February 12, 2013 - Revision: 1.0
Applies to
  • Microsoft Exchange Server 2010 Service Pack 2, when used with:
    • Microsoft Exchange Server 2010 Enterprise
    • Microsoft Exchange Server 2010 Standard
Keywords: 
kbsurveynew kbqfe kbexpertiseinter kbfix KB2784093

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