怎样有效地跟踪SQL Server的阻塞问题？(网转）

http://support.microsoft.com/gp/anxin_techtip7/zh-cn

个人优化整理：

USE [gs_gep_lmz]

GO

CREATE TABLE [dbo].[Blocking_SqlText](

      [spid] [smallint],

      [sql_text] [nvarchar](2000),

      [Capture_Timestamp] [datetime]

)

GO

CREATE TABLE [dbo].[Blocking_sysprocesses](  [spid] [smallint] NULL,  [kpid] [int] NULL,  [blocked] [int] NULL,  [waitType] [nvarchar](50) NULL,  [waitTime] [nvarchar](50) NULL,  [lastWaitType] [nvarchar](50) NULL,  [waitResource] [nvarchar](50) NULL,  [dbID] [int] NULL,  [uid] [int] NULL,  [cpu] [int] NULL,  [physical_IO] [int] NULL,  [memusage] [nvarchar](10) NULL,  [login_Time] [datetime] NULL,  [last_Batch] [datetime] NULL,  [open_Tran] [nvarchar](50) NULL,  [status] [nvarchar](50) NULL,  [sid] [int] NULL,  [hostName] [nvarchar](50) NULL,  [program_name] [nvarchar](100) NULL,  [hostProcess] [nvarchar](100) NULL,  [cmd] [nvarchar](2000) NULL,  [nt_Domain] [nvarchar](50) NULL,  [nt_UserName] [nvarchar](50) NULL,  [net_Library] [nvarchar](50) NULL,  [loginame] [nvarchar](50) NULL,  [context_Info] [nvarchar](2000) NULL,  [sql_Handle] [binary](20) NULL,  [Capture_Timestamp] [datetime] NULL )

GO  

CREATE PROCEDURE [dbo].[checkBlocking_lmz]

AS

BEGIN

SET NOCOUNT ON;

SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED

declare @Duration   int -- in milliseconds, 1000 = 1 sec

declare @now            datetime

declare @Processes  int

select  @Duration = 100  -- in milliseconds, 1000 = 1 sec

select  @Processes = 0

select @now = getdate()

  CREATE TABLE #Blocks_rg(  [spid] [smallint] NULL,  [kpid] [int] NULL,  [blocked] [int] NULL,  [waitType] [nvarchar](50) NULL,  [waitTime] [nvarchar](50) NULL,  [lastWaitType] [nvarchar](50) NULL,  [waitResource] [nvarchar](50) NULL,  [dbID] [int] NULL,  [uid] [int] NULL,  [cpu] [int] NULL,  [physical_IO] [int] NULL,  [memusage] [nvarchar](10) NULL,  [login_Time] [datetime] NULL,  [last_Batch] [datetime] NULL,  [open_Tran] [nvarchar](50) NULL,  [status] [nvarchar](50) NULL,  [sid] [int] NULL,  [hostName] [nvarchar](50) NULL,  [program_name] [nvarchar](100) NULL,  [hostProcess] [nvarchar](100) NULL,  [cmd] [nvarchar](2000) NULL,  [nt_Domain] [nvarchar](50) NULL,  [nt_UserName] [nvarchar](50) NULL,  [net_Library] [nvarchar](50) NULL,  [loginame] [nvarchar](50) NULL,  [context_Info] [nvarchar](2000) NULL,  [sql_Handle] binary(20) NULL,  [Capture_Timestamp] [datetime] NULL )

     

INSERT INTO #Blocks_rg 

SELECT

      [spid],

      [kpid],

      [blocked],

      [waitType],

      [waitTime],

      [lastWaitType],

      [waitResource],

      [dbID],

      [uid],

      [cpu],

      [physical_IO],

      [memusage],

      [login_Time],

      [last_Batch],

      [open_Tran],

      [status],

      [sid],

      [hostName],

      [program_name],

      [hostProcess],

      [cmd],

      [nt_Domain],

      [nt_UserName],

      [net_Library],

      [loginame],

      [context_Info],

      [sql_Handle],

      @now as [Capture_Timestamp]

FROM master..sysprocesses where blocked <> 0

AND waitTime > @Duration     

     

SET @Processes = @@rowcount

INSERT into #Blocks_rg

SELECT

      src.[spid],

      src.[kpid],

      src.[blocked],

      src.[waitType],

      src.[waitTime],

      src.[lastWaitType],

      src.[waitResource],

      src.[dbID],

      src.[uid],

      src.[cpu],

      src.[physical_IO],

      src.[memusage],

      src.[login_Time],

      src.[last_Batch],

      src.[open_Tran],

      src.[status],

      src.[sid],

      src.[hostName],

      src.[program_name],

      src.[hostProcess],

      src.[cmd],

      src.[nt_Domain],

      src.[nt_UserName],

      src.[net_Library],

      src.[loginame],

      src.[context_Info],

      src.[sql_Handle]

      ,@now as [Capture_Timestamp]

FROM  master..sysprocesses src inner join #Blocks_rg trgt on trgt.blocked = src.[spid]

if @Processes > 0

BEGIN

      INSERT [dbo].[Blocking_sysprocesses]

      SELECT * from #Blocks_rg

     

DECLARE @SQL_Handle binary(20), @SPID smallInt;

DECLARE cur_handle CURSOR FOR SELECT sql_Handle, spid FROM #Blocks_rg;

OPEN cur_Handle

FETCH NEXT FROM cur_handle INTO @SQL_Handle, @SPID

WHILE (@@FETCH_STATUS = 0)

BEGIN

INSERT [dbo].[Blocking_SqlText]

SELECT      @SPID, CONVERT(nvarchar(4000), [text]) ,@now as [Capture_Timestamp] from ::fn_get_sql(@SQL_Handle)

FETCH NEXT FROM cur_handle INTO @SQL_Handle, @SPID

END

CLOSE cur_Handle

DEALLOCATE cur_Handle

END

DROP table #Blocks_rg

END

GO

USE msdb;

GO

EXEC dbo.sp_add_job

      @job_name = N'MonitorBlocking_lmz';

GO

EXEC sp_add_jobstep       @job_name = N'MonitorBlocking_lmz',

      @step_name = N'execute blocking script', 

      @subsystem = N'TSQL',

      @command = N'exec checkBlocking_lmz',

@database_name=N'gs_gep_lmz';

GO   

EXEC sp_add_jobSchedule

      @name = N'ScheduleBlockingCheck_lmz',

      @job_name = N'MonitorBlocking_lmz',

      @freq_type = 4, -- daily

      @freq_interval = 1,

      @freq_subday_type = 4,

      @freq_subday_interval = 1

EXEC sp_add_jobserver @job_name = N'MonitorBlocking_lmz', @server_name = N'(local)'