DogMan
17 days ago
Seeing this error also when DB will not mount on Exchange 2016:

Log Name:      Application
Source:        MSExchangeIS
Date:          28/07/2022 13:01:09
Event ID:      2006
Task Category: Physical Access
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      Exch01.domain.local
Description:
Microsoft Exchange Information Store worker process (18324) has encountered an unexpected database error (Current log file missing) for database 'DB02' with a call stack of
   at Microsoft.Exchange.Server.Storage.PhysicalAccessJet.JetDatabase.TryOpen(Boolean lossyMount, Boolean preventMetaCacheDatabaseCreation, Boolean preventMetaCacheDatabaseReset)
   at Microsoft.Exchange.Server.Storage.StoreCommonServices.StoreDatabase.MountActive(Context context, Boolean allowLoss, Boolean preventMetaCacheDatabaseCreation, Boolean preventMetaCacheDatabaseReset)
   at Microsoft.Exchange.Server.Storage.StoreCommonServices.StoreDatabase.MountDatabase(Context context, MountFlags flags, Boolean& errorOnTheThreadExecutingTheMount)
   at Microsoft.Exchange.Server.Storage.StoreCommonServices.Storage.MountDatabase(Context context, StoreDatabase database, MountFlags flags)
   at Microsoft.Exchange.Server.Storage.AdminInterface.AdminRpcMountDatabase.EcExecuteRpc(MapiContext context)
   at Microsoft.Exchange.Server.Storage.AdminInterface.AdminRpc.EcExecute_Unwrapped(AdminExecutionDiagnostics executionDiagnostics, ClientType clientType)
   at Microsoft.Exchange.Server.Storage.AdminInterface.AdminRpc.EcExecute_Unwrapped(AdminExecutionDiagnostics executionDiagnostics)
   at Microsoft.Exchange.Server.Storage.AdminInterface.AdminRpc.<>c__DisplayClass37_0.<EcExecute>b__0()
   at Microsoft.Exchange.Common.IL.ILUtil.DoTryFilterCatch[T](Action tryDelegate, GenericFilterDelegate filterDelegate, GenericCatchDelegate catchDelegate, T state)
   at Microsoft.Exchange.Server.Storage.AdminInterface.AdminRpc.EcExecute()
   at Microsoft.Exchange.Server.Storage.AdminInterface.AdminRpcServer.EcMountDatabase50(ClientSecurityContext callerSecurityContext, Guid mdbGuid, UInt32 flags, Byte[] auxiliaryIn, Byte[]& auxiliaryOut)
   at EcMountDatabaseRpc.EcDispatchCall(EcMountDatabaseRpc* , IAdminRpcServer server, ClientSecurityContext callerSecurityContext, Byte[] auxiliaryIn, Byte[]& auxiliaryOut)
   at Microsoft.Exchange.Rpc.AdminRpc.AdminRpcServer_Wrapper.InternalExecute(AdminRpcServer_Wrapper* )
   at Microsoft.Exchange.Rpc.ManagedExceptionCrashWrapper.Execute(ManagedExceptionCrashWrapper* )
   at EcMountDatabase50_Managed(Void* hBinding, _GUID* pguidStorageGroup, _GUID* pguidMdb, UInt32 ulFlags, UInt32 cbAuxIn, Byte* rgbAuxIn, UInt32* pcbAuxOut, Byte** prgbAuxOut)
.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="MSExchangeIS" />
    <EventID Qualifiers="49156">2006</EventID>
    <Level>2</Level>
    <Task>2</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2022-07-28T12:01:09.262403200Z" />
    <EventRecordID>18592722</EventRecordID>
    <Channel>Application</Channel>
    <Computer>Exch01.domain.local</Computer>
    <Security />
  </System>
  <EventData>
    <Data>Current log file missing</Data>
    <Data>   at Microsoft.Exchange.Server.Storage.PhysicalAccessJet.JetDatabase.TryOpen(Boolean lossyMount, Boolean preventMetaCacheDatabaseCreation, Boolean preventMetaCacheDatabaseReset)
   at Microsoft.Exchange.Server.Storage.StoreCommonServices.StoreDatabase.MountActive(Context context, Boolean allowLoss, Boolean preventMetaCacheDatabaseCreation, Boolean preventMetaCacheDatabaseReset)
   at Microsoft.Exchange.Server.Storage.StoreCommonServices.StoreDatabase.MountDatabase(Context context, MountFlags flags, Boolean& errorOnTheThreadExecutingTheMount)
   at Microsoft.Exchange.Server.Storage.StoreCommonServices.Storage.MountDatabase(Context context, StoreDatabase database, MountFlags flags)
   at Microsoft.Exchange.Server.Storage.AdminInterface.AdminRpcMountDatabase.EcExecuteRpc(MapiContext context)
   at Microsoft.Exchange.Server.Storage.AdminInterface.AdminRpc.EcExecute_Unwrapped(AdminExecutionDiagnostics executionDiagnostics, ClientType clientType)
   at Microsoft.Exchange.Server.Storage.AdminInterface.AdminRpc.EcExecute_Unwrapped(AdminExecutionDiagnostics executionDiagnostics)
   at Microsoft.Exchange.Server.Storage.AdminInterface.AdminRpc.<>c__DisplayClass37_0.<EcExecute>b__0()
   at Microsoft.Exchange.Common.IL.ILUtil.DoTryFilterCatch[T](Action tryDelegate, GenericFilterDelegate filterDelegate, GenericCatchDelegate catchDelegate, T state)
   at Microsoft.Exchange.Server.Storage.AdminInterface.AdminRpc.EcExecute()
   at Microsoft.Exchange.Server.Storage.AdminInterface.AdminRpcServer.EcMountDatabase50(ClientSecurityContext callerSecurityContext, Guid mdbGuid, UInt32 flags, Byte[] auxiliaryIn, Byte[]& auxiliaryOut)
   at EcMountDatabaseRpc.EcDispatchCall(EcMountDatabaseRpc* , IAdminRpcServer server, ClientSecurityContext callerSecurityContext, Byte[] auxiliaryIn, Byte[]& auxiliaryOut)
   at Microsoft.Exchange.Rpc.AdminRpc.AdminRpcServer_Wrapper.InternalExecute(AdminRpcServer_Wrapper* )
   at Microsoft.Exchange.Rpc.ManagedExceptionCrashWrapper.Execute(ManagedExceptionCrashWrapper* )
   at EcMountDatabase50_Managed(Void* hBinding, _GUID* pguidStorageGroup, _GUID* pguidMdb, UInt32 ulFlags, UInt32 cbAuxIn, Byte* rgbAuxIn, UInt32* pcbAuxOut, Byte** prgbAuxOut)
</Data>
    <Data>18324</Data>
    <Data>DB02</Data>
    <Data>Microsoft.Isam.Esent.Interop.EsentMissingLogFileException: Current log file missing
   at Microsoft.Exchange.Server.Storage.PhysicalAccessJet.JetDatabase.InitializeJetInstance(InitType initType)
   at Microsoft.Exchange.Server.Storage.PhysicalAccessJet.JetDatabase.TryOpen(Boolean lossyMount, Boolean preventMetaCacheDatabaseCreation, Boolean preventMetaCacheDatabaseReset)</Data>
    <Binary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inary>
  </EventData>
</Event>
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