2021-05-18 sqlserver 死锁排查

SELECT [Individual Query] = SUBSTRING(qt.TEXT, er.statement_start_offset / 2, (
CASE
WHEN er.statement_end_offset = - 1
THEN LEN(CONVERT(NVARCHAR(MAX), qt.TEXT)) * 2
ELSE er.statement_end_offset
END - er.statement_start_offset
) / 2),
[Parent Query] = qt.TEXT,
[Spid] = session_Id,
ecid,
[Database] = DB_NAME(sp.dbid),
[User] = nt_username,
[Status] = er.STATUS,
[Wait] = wait_type,
Program = program_name,
Hostname,
nt_domain,
start_time
FROM sys.dm_exec_requests er
INNER JOIN sys.sysprocesses sp ON er.session_id = sp.spid
CROSS APPLY sys.dm_exec_sql_text(er.sql_handle) AS qt
WHERE session_Id > 50 /* Ignore system spids.*/
AND session_Id NOT IN (@@SPID)

--每秒死锁数量
SELECT *
FROM sys.dm_os_performance_counters
WHERE counter_name LIKE 'Number of Deadlocksc%';

--查询当前阻塞
WITH CTE_SID(BSID, SID, sql_handle) AS (
SELECT blocking_session_id,
session_id,
sql_handle
FROM sys.dm_exec_requests
WHERE blocking_session_id <> 0
UNION ALL
SELECT A.blocking_session_id,
A.session_id,
A.sql_handle
FROM sys.dm_exec_requests A
JOIN CTE_SID B ON A.SESSION_ID = B.BSID
)

SELECT C.BSID,
C.SID,
S.login_name,
S.host_name,
S.STATUS,
S.cpu_time,
S.memory_usage,
S.last_request_start_time,
S.last_request_end_time,
S.logical_reads,
S.row_count,
q.TEXT
FROM CTE_SID C
JOIN sys.dm_exec_sessions S ON C.sid = s.session_id
CROSS APPLY sys.dm_exec_sql_text(C.sql_handle) Q
ORDER BY sid

--检查表的更新排他锁
DECLARE @t_lock AS TABLE (
[spid] [smallint] NULL,
[dbid] [smallint] NOT NULL,
[ObjId] [int] NOT NULL,
[IndId] [smallint] NOT NULL,
[Type] nvarchar NULL,
[Resource] nvarchar NULL,
[Mode] nvarchar NULL,
[Status] nvarchar NULL
)

INSERT INTO @t_lock
EXEC sp_lock

SELECT ,
[Database] = DB_NAME([dbid]),
[Object] = OBJECT_NAME([ObjId], [dbid])
FROM @t_lock
WHERE [spid] > 50 / Ignore system spids.*/
AND [spid] NOT IN (@@SPID)
AND [Type] = 'TAB'
AND [Mode] IN (
'U',
'IU',
'SIU',
'UIX',
'BU',
'RangeS_U',
'RangeI_U',
'X',
'IX',
'SIX',
'UIX',
'RangeI_X',
'RangeX_S',
'RangeX_U',
'RangeX_X'
)