Symptomen
Als veel clients verbinding met de Microsoft BitLocker-beheer en bewaking 2.5 recovery-databases maken, optreden SQL deadlocks in de database. Daarom kunnen niet toetsen worden hersteld vanuit de Helpdesk Portal of Self Service Portal. Fouten bij nieuwe clients ontvangen wanneer ze proberen te coderen terwijl de service MBAM onbereikbaar wordt. Dit zorgt ervoor dat de time-outs en andere fouten.
Ook de volgende fouten optreden in de MBAM svc traceerlogboeken onder BitLocker Management Solution\Logs\Recovery c:\inetpub\Microsoft en Hardware-Service\ * .svclogs:
Transactie (proces-ID 63) is een impasse geraakt voor de vergrendelingsbronnen met een ander proces en is gekozen als impasseslachtoffer. De transactie opnieuw uit te voeren. Uncommittable transactie wordt aan het einde van de batch gedetecteerd. De transactie is teruggedraaid.
Oplossing
Werk de opgeslagen procedures die zijn gekoppeld aan de database MBAM herstel het probleem op te lossen. U doet dit door de volgende Transact-SQL-scripts worden uitgevoerd:
USE [MBAM Recovery and Hardware]GO
/****** Object: StoredProcedure [RecoveryAndHardwareCore].[GetDomainId] Script Date: 05/09/2014 07:58:22 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author: <Kirill Tropin>
-- Create date: <6/18/2010>
-- Description: <Returns DomainId for provided Domain Name. If domain isn't saved - will add it.>
-- =============================================
ALTER PROCEDURE [RecoveryAndHardwareCore].[GetDomainId]
@DomainName nvarchar(255)
WITH EXECUTE AS OWNER
AS
BEGIN
-- Validating input parameters
IF (@DomainName IS NULL)
BEGIN
RETURN -1
END
-- Adding domain if needed and returning DomainId
DECLARE @OrigTranCount int
SET @OrigTranCount = @@TRANCOUNT
IF @OrigTranCount > 0
SAVE TRAN myTran
ELSE
BEGIN TRAN
BEGIN TRY
DECLARE @DomainId int
SET @DomainId = (
SELECT Id
FROM Domains
WITH (READPAST) -- If a committed domain exists then get it, otherwise returns NULL
WHERE (Domains.DomainName = @DomainName)
)
-- Inserting Domain since it wasn't there
IF (@DomainId IS NULL)
BEGIN
/*
In the unlikely event that two clients simultaneously insert the same new domain,
we can end up with a race condition as they both attempt to insert the domain.
One of them will get an exception (error code 2627) due to the unique constraint
and should use this to trigger a re-read of the domain.
*/
WHILE @DomainId IS NULL
BEGIN
BEGIN TRY
INSERT INTO Domains WITH (ROWLOCK, UPDLOCK)
(DomainName)
VALUES (@DomainName)
SET @DomainId = @@IDENTITY
END TRY
BEGIN CATCH
DECLARE @ErrorNumber INT
DECLARE @ErrorSeverity INT
DECLARE @ErrorState INT
SELECT @ErrorNumber = ERROR_NUMBER(), @ErrorSeverity = ERROR_SEVERITY(), @ErrorState = ERROR_STATE()
IF @ErrorNumber = 2627
BEGIN
SET @DomainId = (
SELECT Id
FROM Domains
WITH (READCOMMITTED)
WHERE (Domains.DomainName = @DomainName)
)
END
ELSE
BEGIN
RAISERROR (@ErrorNumber, @ErrorSeverity, @ErrorState)
END
END CATCH
END
END
IF @OrigTranCount = 0
COMMIT TRAN
END TRY
BEGIN CATCH
IF @OrigTranCount = 0
ROLLBACK TRAN
ELSE
IF XACT_STATE() <> -1
ROLLBACK TRAN myTran
DECLARE @ErrorMessage1 NVARCHAR(4000);
DECLARE @ErrorSeverity1 INT;
DECLARE @ErrorState1 INT;
SELECT @ErrorMessage1 = ERROR_MESSAGE();
SELECT @ErrorSeverity1 = ERROR_SEVERITY();
SELECT @ErrorState1 = ERROR_STATE();
RAISERROR (@ErrorMessage1, -- Message text.
@ErrorSeverity1, -- Severity.
@ErrorState1 -- State.
);
END CATCH
RETURN @DomainId
END
USE [MBAM Recovery and Hardware]GO
/****** Object: StoredProcedure [RecoveryAndHardwareCore].[GetDomainId] Script Date: 05/09/2014 14:06:14 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author: <Kirill Tropin>
-- Create date: <6/18/2010>
-- Description: <Returns DomainId for provided Domain Name. If domain isn't saved - will add it.>
-- =============================================
ALTER PROCEDURE [RecoveryAndHardwareCore].[GetDomainId]
@DomainName nvarchar(255)
WITH EXECUTE AS OWNER
AS
BEGIN
-- Validating input parameters
IF (@DomainName IS NULL)
BEGIN
RETURN -1
END
-- Adding domain if needed and returning DomainId
DECLARE @OrigTranCount int
SET @OrigTranCount = @@TRANCOUNT
IF @OrigTranCount > 0
SAVE TRAN myTran
ELSE
BEGIN TRAN
BEGIN TRY
SET NOCOUNT ON
-- Use a merge statement to guarantee that the domain will be in the table
-- when the SELECT statement is called to get it.
MERGE Domains WITH (HOLDLOCK)
USING (SELECT @DomainName as DomainName) AS NewDomain
ON Domains.DomainName = NewDomain.DomainName
WHEN NOT MATCHED THEN
INSERT (DomainName)
VALUES (NewDomain.DomainName)
;
DECLARE @DomainId int
SET @DomainId = (
SELECT Id
FROM Domains
WHERE Domains.DomainName = @DomainName
)
IF @OrigTranCount = 0
COMMIT TRAN
END TRY
BEGIN CATCH
IF @OrigTranCount = 0
ROLLBACK TRAN
ELSE
IF XACT_STATE() <> -1
ROLLBACK TRAN myTran
DECLARE @ErrorMessage1 NVARCHAR(4000);
DECLARE @ErrorSeverity1 INT;
DECLARE @ErrorState1 INT;
SELECT @ErrorMessage1 = ERROR_MESSAGE();
SELECT @ErrorSeverity1 = ERROR_SEVERITY();
SELECT @ErrorState1 = ERROR_STATE();
RAISERROR (@ErrorMessage1, -- Message text.
@ErrorSeverity1, -- Severity.
@ErrorState1 -- State.
);
END CATCH
RETURN @DomainId
END
GO
