我的服务器上正在运行应用程序。这个应用程序的问题是每天我得到近 10-20，System.Data.SqlClient.SqlException Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding只有我的一个 SP。这是我的SP，
ALTER PROCEDURE [dbo].[Insertorupdatedevicecatalog]
(@OS NVARCHAR(50)
,@UniqueID VARCHAR(500)
,@Longitude FLOAT
,@Latitude FLOAT
,@Culture VARCHAR(10)
,@Other NVARCHAR(200)
,@IPAddress VARCHAR(50)
,@NativeDeviceID VARCHAR(50))
AS
BEGIN
DECLARE @OldUniqueID VARCHAR(500) = '-1';
SELECT @OldUniqueID = [UniqueID] FROM DeviceCatalog WHERE (@NativeDeviceID != '' AND [NativeDeviceID] = @NativeDeviceID);
BEGIN TRANSACTION [Tran1]
BEGIN TRY
IF EXISTS(SELECT 1 FROM DeviceCatalog WHERE [UniqueID] = @UniqueID)
BEGIN
UPDATE DeviceCatalog
SET [OS] = @OS
,[Location] = geography::STGeomFromText('POINT(' + CONVERT(VARCHAR(100 ), @Longitude) + ' ' + CONVERT(VARCHAR(100), @Latitude) + ')', 4326)
,[Culture] = @Culture
,[Other] = @Other
,[Lastmodifieddate] = Getdate()
,[IPAddress] = @IPAddress
WHERE [UniqueID] = @UniqueID;
END
ELSE
BEGIN
INSERT INTO DeviceCatalog
([OS]
,[UniqueID]
,[Location]
,[Culture]
,[Other]
,[IPAddress]
,[NativeDeviceID])
VALUES (@OS
,@UniqueID
,geography::STGeomFromText('POINT(' + CONVERT(VARCHAR(100) ,@Longitude) + ' ' + CONVERT(VARCHAR(100), @Latitude) + ')', 4326)
,@Culture
,@Other
,@IPAddress
,@NativeDeviceID);
IF(@OldUniqueID != '-1' AND @OldUniqueID != @UniqueID)
BEGIN
EXEC DeleteOldDevice @OldUniqueID, @UniqueID;
END
END
COMMIT TRANSACTION [Tran1];
END TRY
BEGIN CATCH
ROLLBACK TRANSACTION [Tran1];
DECLARE @ErrorNumber nchar(5), @ErrorMessage nvarchar(2048);
SELECT
@ErrorNumber = RIGHT('00000' + ERROR_NUMBER(), 5),
@ErrorMessage = @ErrorNumber + ' ' + ERROR_MESSAGE();
RAISERROR (@ErrorMessage, 16, 1);
END CATCH
END
这个SP有问题吗？为什么我只在这个 SP 中得到超时异常？这是堆栈跟踪，
System.Data.SqlClient.SqlException (0x80131904): Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.
at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning()
at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString)
at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async)
at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result)
at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe)
at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
at App.Classes.DBLayer.Execute(SqlCommand command, Boolean executeNonQuery)
at App.Helpers.SQLHelper.GetResult(List`1 parameters, Boolean storedProcedure, String commandText, ResultType type)
at App.Helpers.SQLHelper.ExecuteNonQuery(List`1 parameters, Boolean storedProcedure, String commandText)
at App.Services.DeviceCatalogService.InsertOrUpdateDeviceCatalog(DeviceCatalog deviceCataLog)
at WebApplication1.Handlers.RegisterDevice.ProcessRequest(HttpContext context)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)