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死锁分析

时间:2020-01-15 17:57:06      阅读:88      评论:0      收藏:0      [点我收藏+]

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--死锁文件查询
DECLARE @SessionName SysName 
 
SELECT @SessionName = system_health
 
 
IF OBJECT_ID(tempdb..#Events) IS NOT NULL BEGIN
    DROP TABLE #Events
END
 
DECLARE @Target_File NVarChar(1000)
    , @Target_Dir NVarChar(1000)
    , @Target_File_WildCard NVarChar(1000)
 
SELECT @Target_File = CAST(t.target_data as XML).value(EventFileTarget[1]/File[1]/@name, NVARCHAR(256))
FROM sys.dm_xe_session_targets t
    INNER JOIN sys.dm_xe_sessions s ON s.address = t.event_session_address
WHERE s.name = @SessionName
    AND t.target_name = event_file
 
SELECT @Target_Dir = LEFT(@Target_File, Len(@Target_File) - CHARINDEX(\, REVERSE(@Target_File))) 
 
SELECT @Target_File_WildCard = @Target_Dir + \  + @SessionName + _*.xel
 
--Keep this as a separate table because it‘s called twice in the next query.  You don‘t want this running twice.
SELECT DeadlockGraph = CAST(event_data AS XML)
    , DeadlockID = Row_Number() OVER(ORDER BY file_name, file_offset)
INTO #Events
FROM sys.fn_xe_file_target_read_file(@Target_File_WildCard, null, null, null) AS F
WHERE event_data like <event name="xml_deadlock_report%
 
;WITH Victims AS
(
    SELECT VictimID = Deadlock.Victims.value(@id, varchar(50))
        , e.DeadlockID 
    FROM #Events e
        CROSS APPLY e.DeadlockGraph.nodes(/event/data/value/deadlock/victim-list/victimProcess) as Deadlock(Victims)
)
, DeadlockObjects AS
(
    SELECT DISTINCT e.DeadlockID
        , ObjectName = Deadlock.Resources.value(@objectname, nvarchar(256))
    FROM #Events e
        CROSS APPLY e.DeadlockGraph.nodes(/event/data/value/deadlock/resource-list/*) as Deadlock(Resources)
)
SELECT *
FROM
(
    SELECT e.DeadlockID
        , TransactionTime = Deadlock.Process.value(@lasttranstarted, datetime)
        , DeadlockGraph
        , DeadlockObjects = substring((SELECT (,  + o.ObjectName)
                            FROM DeadlockObjects o
                            WHERE o.DeadlockID = e.DeadlockID
                            ORDER BY o.ObjectName
                            FOR XML PATH (‘‘)
                            ), 3, 4000)
        , Victim = CASE WHEN v.VictimID IS NOT NULL 
                            THEN 1 
                        ELSE 0 
                        END
        , SPID = Deadlock.Process.value(@spid, int)
        , ProcedureName = Deadlock.Process.value(executionStack[1]/frame[1]/@procname[1], varchar(200))
        , LockMode = Deadlock.Process.value(@lockMode, char(1))
        , Code = Deadlock.Process.value(executionStack[1]/frame[1], varchar(1000))
        , ClientApp = CASE LEFT(Deadlock.Process.value(@clientapp, varchar(100)), 29)
                        WHEN SQLAgent - TSQL JobStep (Job 
                            THEN SQLAgent Job:  + (SELECT name FROM msdb..sysjobs sj WHERE substring(Deadlock.Process.value(@clientapp, varchar(100)),32,32)=(substring(sys.fn_varbintohexstr(sj.job_id),3,100))) +  -  + SUBSTRING(Deadlock.Process.value(@clientapp, varchar(100)), 67, len(Deadlock.Process.value(@clientapp, varchar(100)))-67)
                        ELSE Deadlock.Process.value(@clientapp, varchar(100))
                        END 
        , HostName = Deadlock.Process.value(@hostname, varchar(20))
        , LoginName = Deadlock.Process.value(@loginname, varchar(20))
        , InputBuffer = Deadlock.Process.value(inputbuf[1], varchar(1000))
    FROM #Events e
        CROSS APPLY e.DeadlockGraph.nodes(/event/data/value/deadlock/process-list/process) as Deadlock(Process)
        LEFT JOIN Victims v ON v.DeadlockID = e.DeadlockID AND v.VictimID = Deadlock.Process.value(@id, varchar(50))
) X
ORDER BY DeadlockID DESC

 

分析查询对应资源

技术图片

 

 

 waitresource="KEY: 5:72057594046054400 (cec373351f8e)"

 waitresource="KEY: 5:72057594046054400 (6ac445c1c322)"

数据库标识:5

索引:72057594046054400

资源标识:"(676a346e86c4)","(36d806131fd9)"

上面可以得出的信息:db_id=5;hobt_id=72057594046054400;keyhashvalue=(cec373351f8e)

上面可以得出的信息:db_id=5;hobt_id=72057594046054400;keyhashvalue=(676a346e86c4)

--查询表对应死锁资源
SELECT * FROM [DB].[dbo].[Table1] where %%lockres%% = (676a346e86c4)
SELECT * FROM [DB].[dbo].[Table1] where %%lockres%% = (36d806131fd9)

 

参考资料:https://blog.csdn.net/kk185800961/article/details/41687209

死锁分析

标签:dex   img   login   agent   http   src   apply   ddr   png   

原文地址:https://www.cnblogs.com/ChenRihe/p/12197973.html

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