This post is about an issue I encountered last week trying to connect Service Manager 2012 to Operations Manager 2012 in my lab Environment.
While configuring the connector using the “Operations Manager CI connector wizard” I received the following error :
An object of type MonitoringClass with Id 1d870aa6-edb4-7d13-3950-d3c73755d6bf was not found.
Daniele that is in touch with the product team already asked if this is a known issue and if there is a fix or an official workaround. We are waiting for them.
In the meantime I started to investigate myself.
I enabled SM trace, the following is the output captured while reproducing the issue :
[Verbose] [Verbose_TextW]enter_01 <ManagementGroup.ctor|API>
[Verbose] [Verbose_TextW]enter_02 <SdkDataAbstractionLayer.Connect|API>
[Information] [Information_TextW]<SdkDataAbstractionLayer.Connect> Connect called with params: serverName = opsmgr-rms.domain countryCode = ENU
[Verbose] [Verbose_TextW]enter_03 <ClientDataAccess.ctor|API>
[Verbose] [Verbose_TextW]leave_03
[Verbose] [Verbose_TextW]leave_02
[Verbose] [Verbose_TextW]leave_01
[Verbose] [Verbose_TextW]enter_01 <ManagementGroup.GetManagementPacks|API>
[Information] [Information_TextW]<ManagementGroup.GetManagementPacks> GetManagementPacks called with params: criteria = Name = ‘System.Library’
[Verbose] [Verbose_TextW]enter_02 <ManagementGroup.GetManagementPacksList|API>
[Information] [Information_TextW]<ManagementGroup.GetManagementPacksList> GetManagementPacks called with params: criteria = Name = ‘System.Library’
[Verbose] [Verbose_TextW]enter_03 <TypeSpaceOperations.GetManagementPacksByCriteria|API>
[Verbose] [Verbose_TextW]leave_03
[Verbose] [Verbose_TextW]enter_03 <ManagementPackElementConstructor.CreateMultipleManagementPack|API>
[Verbose] [Verbose_TextW]enter_04 <ManagementPackDatabaseReader.ctor|API>
[Verbose] [Verbose_TextW]leave_04
[Verbose] [Verbose_TextW]leave_03
[Verbose] [Verbose_TextW]leave_02
[Verbose] [Verbose_TextW]leave_01
[Verbose] [Verbose_TextW]enter_01 <ManagementGroup.GetMonitoringClass|API>
[Verbose] [Verbose_TextW]enter_02 <TypeSpaceCache.GetManagedType|API>
[Verbose] [Verbose_TextW]enter_03 <TypeSpaceCache.GetType|API>
[Information] [Information_TextW]<TypeSpaceCache.GetType> GetType called with params: managementPackObjectId = 1d870aa6-edb4-7d13-3950-d3c73755d6bf
[Error] [Error_TextW]<TypeSpaceCache.GetType> GetType – MomManagementPackObject with Id = 1d870aa6-edb4-7d13-3950-d3c73755d6bf not found
[Verbose] [Verbose_TextW]leave_03
[Verbose] [Verbose_TextW]leave_02
[Verbose] [Verbose_TextW]leave_01
And I found the following Error in Event Log :
The System Center Data Access service client threw an unknown exception while processing a type cache refresh notification.
The cache was not updated successfully:
System.InvalidCastException: Unable to cast object of type ‘System.DBNull’ to type ‘System.String’.
at Microsoft.EnterpriseManagement.Common.Internal.ImageReferenceGenerated..ctor(Result result)
at Microsoft.EnterpriseManagement.Configuration.MonitoringClass.Constructor.AddSingleSubElementTwo(Result row, Dictionary`2 objectIdToObjectDictionary)
at Microsoft.EnterpriseManagement.Configuration.ManagementPackElementConstructor.CreateMultiple[T,H](IList`1 dataAccessResult, ManagementGroup managementGroup, ManagementPack managementPack)
at Microsoft.EnterpriseManagement.Configuration.TypeSpaceCache.RefreshMonitoringClassCache(ReadOnlyCollection`1 typeCacheResultSets)
at Microsoft.EnterpriseManagement.Configuration.TypeSpaceCache.Refresh(Boolean forceDatabaseSync, ManualResetEvent acquireCacheUpdateLockEvent)
at Microsoft.EnterpriseManagement.ManagementGroupInternal.RefreshTypeCacheInternal(Boolean forceDatabaseSync, ManualResetEvent acquireCacheUpdateLockEvent)
at Microsoft.EnterpriseManagement.ManagementGroup.RefreshTypeCacheNotForce(Object eventToSignalOnLockAcquisition)
The first trace suggested me that SM is connecting to OpsMgr SDK and is unable to find a Management Pack Object with ID = 1d870aa6-edb4-7d13-3950-d3c73755d6bf in the TypeSpaceCache, the second error suggested me that SDK client is unable to build the TypeSpaceCache because of a InvalidCastException, and this should be the reason why the object is not found. I verified with the following query that the Management Pack Object with ID = 1d870aa6-edb4-7d13-3950-d3c73755d6bf exists in OpsMgr DB :
Select * from ManagedType where ManagedTypeId = ’1d870aa6-edb4-7d13-3950-d3c73755d6bf’
Next I tried to build a small application that call the same SDK methods used by SM, and I ‘m able to reproduce the issue out of SM. The following is the source code :
ManagementGroup managementGroup;
managementGroup = new ManagementGroup(“opsmgr-rms.domain”);
MonitoringClass mc = managementGroup.GetMonitoringClass(new Guid(“{1d870aa6-edb4-7d13-3950-d3c73755d6bf}”));
The interested think here is that if I my application binds OpsMgr 2007 assemblies I’m able to reproduce the issue, if I bind OpsMgr 2012 assemblies the issue does not occur and Management Pack Object with ID = 1d870aa6-edb4-7d13-3950-d3c73755d6bf is retrieved successfully. Service Manager’s OpsMgr connectors use OpsMgr 2007 assemblies even connecting to OpsMgr 2012 and is affected by the issue.
In the next article (Part2) I will post what I found using WinDbg and a possible workaround.
Italian version of this post is available here
- Fabrizio
