I'm getting the following error after a eseutil /p repair on a mailbox that wasn't mounting (not ideal I know)...

A similar problem was asked in the following forum

https://social.technet.microsoft.com/Forums/ru-RU/4d03ce7b-058a-42ad-95be-6d7a63144db2/-?forum=exchange2013ru

Per a suggestion from the above thread, did a new-MailboxRepairRequest on the entire database to repair any corrupt mailboxes. Unfortunately, it is not running -- a get-MailboxRepairRequest shows the Job State as queued and Progress 0. Any suggestions on how to get the repair to start processing the queues?

Here is the message I'm getting:

Microsoft Exchange Information Store worker process (17404) has encountered an unexpected database error (Microsoft.Isam.Esent.Interop.EsentKeyDuplicateException: Illegal duplicate key
   at Microsoft.Isam.Esent.Interop.Server2003.Server2003Api.JetUpdate2(JET_SESID sesid, JET_TABLEID tableid, Byte[] bookmark, Int32 bookmarkSize, Int32& actualBookmarkSize, UpdateGrbit grbit)
   at Microsoft.Exchange.Server.Storage.PhysicalAccessJet.JetTableOperator.Insert(IList`1 columns, IList`1 values, Column identityColumnToFetch, Boolean unversioned, Boolean ignoreDuplicateKey, Object& identityValue)) for database 'ExDb13' with a call stack of
   at Microsoft.Exchange.Server.Storage.PhysicalAccessJet.JetTableOperator.Insert(IList`1 columns, IList`1 values, Column identityColumnToFetch, Boolean unversioned, Boolean ignoreDuplicateKey, Object& identityValue)
   at Microsoft.Exchange.Server.Storage.PhysicalAccessJet.JetInsertOperator.ExecuteScalar()
   at Microsoft.Exchange.Server.Storage.PhysicalAccess.DataRow.Insert(IConnectionProvider connectionProvider)
   at Microsoft.Exchange.Server.Storage.StoreCommonServices.ObjectPropertyBag.Flush(Context context)
   at Microsoft.Exchange.Server.Storage.LogicalDataModel.Item.Flush(Context context)
   at Microsoft.Exchange.Server.Storage.LogicalDataModel.Message.Flush(Context context)
   at Microsoft.Exchange.Server.Storage.LogicalDataModel.Message.SaveChanges(Context context)
   at Microsoft.Exchange.Server.Storage.LogicalDataModel.TopMessage.SaveChanges(Context context, SaveMessageChangesFlags flags)
   at Microsoft.Exchange.Protocols.MAPI.MapiMessage.SaveChangesInternal(MapiContext context, MapiSaveMessageChangesFlags saveFlags, ExchangeId& newMid)
   at Microsoft.Exchange.Protocols.MAPI.MapiMessage.SaveChanges(MapiContext context, MapiSaveMessageChangesFlags saveFlags, ExchangeId& newMid)
   at Microsoft.Exchange.Server.Storage.MapiDisp.RopHandler.SaveChangesMessage(MapiContext context, MapiMessage message, SaveChangesMode saveChangesMode, SaveChangesMessageResultFactory resultFactory)
   at Microsoft.Exchange.Server.Storage.MapiDisp.RopHandlerBase.SaveChangesMessage(IServerObject serverObject, SaveChangesMode saveChangesMode, SaveChangesMessageResultFactory resultFactory)
   at Microsoft.Exchange.RpcClientAccess.Parser.RopSaveChangesMessage.InternalExecute(IServerObject serverObject, IRopHandler ropHandler, ArraySegment`1 outputBuffer)
   at Microsoft.Exchange.RpcClientAccess.Parser.InputRop.Execute(IConnectionInformation connection, IRopDriver ropDriver, ServerObjectHandleTable handleTable, ArraySegment`1 outputBuffer)
   at Microsoft.Exchange.RpcClientAccess.Parser.RopDriver.ExecuteRops(List`1 inputArraySegmentList, ServerObjectHandleTable serverObjectHandleTable, ArraySegment`1 outputBuffer, Int32 outputIndex, Int32 maxOutputSize, Boolean isOutputBufferMaxSize, Int32& outputSize, AuxiliaryData auxiliaryData, Boolean isFake, Byte[]& fakeOut)
   at Microsoft.Exchange.RpcClientAccess.Parser.RopDriver.Execute(IList`1 inputBufferArray, ArraySegment`1 outputBuffer, Int32& outputSize, AuxiliaryData auxiliaryData, Boolean isFake, Byte[]& fakeOut)
   at Microsoft.Exchange.Server.Storage.MapiDisp.MapiRpc.<>c__DisplayClass9.<DoRpc>b__6(MapiContext operationContext, MapiSession& session, Boolean& deregisterSession, AuxiliaryData auxiliaryData)
   at Microsoft.Exchange.Server.Storage.MapiDisp.MapiRpc.Execute(IExecutionDiagnostics executionDiagnostics, MapiContext outerContext, String functionName, Boolean isRpc, IntPtr& contextHandle, Boolean tryLockSession, String userDn, IList`1 dataIn, Int32 sizeInMegabytes, ArraySegment`1 auxIn, ArraySegment`1 auxOut, Int32& sizeAuxOut, ExecuteDelegate executeDelegate)
   at Microsoft.Exchange.Server.Storage.MapiDisp.MapiRpc.DoRpc(IExecutionDiagnostics executionDiagnostics, IntPtr& contextHandle, IList`1 ropInArraySegments, ArraySegment`1 ropOut, Int32& sizeRopOut, ArraySegment`1 auxIn, ArraySegment`1 auxOut, Int32& sizeAuxOut, Boolean fakeRequest, Byte[]& fakeOut)
   at Microsoft.Exchange.Server.Storage.MapiDisp.PoolRpcServer.EcDoRpc(MapiExecutionDiagnostics executionDiagnostics, IntPtr& sessionHandle, UInt32 flags, UInt32 maximumResponseSize, ArraySegment`1 request, ArraySegment`1 auxiliaryIn, IPoolSessionDoRpcCompletion completion)
   at Microsoft.Exchange.Server.Storage.MapiDisp.PoolRpcServer.EcPoolSessionDoRpc_Unwrapped(MapiExecutionDiagnostics executionDiagnostics, IntPtr contextHandle, UInt32 sessionHandle, UInt32 flags, UInt32 maximumResponseSize, ArraySegment`1 request, ArraySegment`1 auxiliaryIn, IPoolSessionDoRpcCompletion completion)
   at Microsoft.Exchange.Server.Storage.MapiDisp.PoolRpcServer.<>c__DisplayClassf.<EcPoolSessionDoRpc>b__c()
   at Microsoft.Exchange.Common.IL.ILUtil.DoTryFilterCatch[T](TryDelegate tryDelegate, GenericFilterDelegate filterDelegate, GenericCatchDelegate catchDelegate, T state)
   at Microsoft.Exchange.Server.Storage.MapiDisp.PoolRpcServer.EcPoolSessionDoRpc(IntPtr contextHandle, UInt32 sessionHandle, UInt32 flags, UInt32 maximumResponseSize, ArraySegment`1 request, ArraySegment`1 auxiliaryIn, IPoolSessionDoRpcCompletion completion)
   at EcPoolSessionDoRpcRpc.EcDispatchCall(EcPoolSessionDoRpcRpc* , SafeRpcAsyncStateHandle pAsyncState, IPoolRpcServer server)
   at PoolRpcServer_Wrapper.InternalExecute(PoolRpcServer_Wrapper* , SafeRpcAsyncStateHandle pAsyncState)
   at Microsoft.Exchange.Rpc.ManagedExceptionAsyncCrashWrapper.Execute<class Microsoft::Exchange::Rpc::PoolRpc::SafeEcPoolSessionDoRpcRpcAsyncStateHandle>(ManagedExceptionAsyncCrashWrapper* , _RPC_ASYNC_STATE* pAsyncState)
   at EcPoolSessionDoRpc_Managed(_RPC_ASYNC_STATE* pAsyncState, Void* cpxh, UInt32 ulSessionHandle, UInt32* pulFlags, UInt32 cbIn, Byte* rgbIn, UInt32* pcbOut, Byte** ppbOut, UInt32 cbAuxIn, Byte* rgbAuxIn, UInt32* pcbAuxOut, Byte** ppbAuxOut)
.

• Edited by whydoesthisdisplaynamehavetobeunique 14 hours 43 minutes ago

Restore from backup?

Hi UniqueDisplayName,

To mount the database it has to be repaired\fixed first.

What was the result of "Eseutil /P".

Check database state: It should be 'Clean Shutdown'

eseutil /mh "c:\DBRecovery\Mailbox Database 0436312751.edb"

The basics of Exchange database repair:

You run Eseutil /P first.

Then you run Eseutil /D.

Then run Isinteg -fix -test alltests. (This is new-MailboxRepairRequest for newer versions)

Once done, remove any checkpoint or log files present first.

Mo