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ASPSession State Blocking and Timeout inSQL Server
The procedure causes blocking and eventually other sessions start getting timed out in SQL Server. Can you suggest a approach to handle this?
CREATE PROCEDURE [dbo].[TempGetStateItemExc lusive3]
@id tSessionId,
@itemShort tSessionItemShort OUTPUT,
@locked bit OUTPUT,
@lockAge int OUTPUT,
@lockCookie int OUTPUT,
@actionFlags int OUTPUT
AS
DECLARE @textptr AS tTextPtr
DECLARE @length AS int
DECLARE @now AS datetime
DECLARE @nowLocal AS datetime
SET @now = GETUTCDATE()
SET @nowLocal = GETDATE()
UPDATE [ASPState].dbo.ASPStateTem pSessions
SET Expires = DATEADD(n, Timeout, @now),
LockDate = CASE Locked
WHEN 0 THEN @now
ELSE LockDate
END,
LockDateLocal = CASE Locked
WHEN 0 THEN @nowLocal
ELSE LockDateLocal
END,
@lockAge = CASE Locked
WHEN 0 THEN 0
ELSE DATEDIFF(second, LockDate, @now)
END,
@lockCookie = LockCookie = CASE Locked
WHEN 0 THEN LockCookie + 1
ELSE LockCookie
END,
@itemShort = CASE Locked
WHEN 0 THEN SessionItemShort
ELSE NULL
END,
@textptr = CASE Locked
WHEN 0 THEN TEXTPTR(SessionItemLong)
ELSE NULL
END,
@length = CASE Locked
WHEN 0 THEN DATALENGTH(SessionItemLong )
ELSE NULL
END,
@locked = Locked,
Locked = 1,
/* If the Uninitialized flag (0x1) if it is set,
remove it and return InitializeItem (0x1) in actionFlags */
Flags = CASE
WHEN (Flags & 1) <> 0 THEN (Flags & ~1)
ELSE Flags
END,
@actionFlags = CASE
WHEN (Flags & 1) <> 0 THEN 1
ELSE 0
END
WHERE SessionId = @id
IF @length IS NOT NULL BEGIN
READTEXT [ASPState].dbo.ASPStateTem pSessions. SessionIte mLong @textptr 0 @length
END
RETURN 0
GO
CREATE PROCEDURE [dbo].[TempGetStateItemExc
@id tSessionId,
@itemShort tSessionItemShort OUTPUT,
@locked bit OUTPUT,
@lockAge int OUTPUT,
@lockCookie int OUTPUT,
@actionFlags int OUTPUT
AS
DECLARE @textptr AS tTextPtr
DECLARE @length AS int
DECLARE @now AS datetime
DECLARE @nowLocal AS datetime
SET @now = GETUTCDATE()
SET @nowLocal = GETDATE()
UPDATE [ASPState].dbo.ASPStateTem
SET Expires = DATEADD(n, Timeout, @now),
LockDate = CASE Locked
WHEN 0 THEN @now
ELSE LockDate
END,
LockDateLocal = CASE Locked
WHEN 0 THEN @nowLocal
ELSE LockDateLocal
END,
@lockAge = CASE Locked
WHEN 0 THEN 0
ELSE DATEDIFF(second, LockDate, @now)
END,
@lockCookie = LockCookie = CASE Locked
WHEN 0 THEN LockCookie + 1
ELSE LockCookie
END,
@itemShort = CASE Locked
WHEN 0 THEN SessionItemShort
ELSE NULL
END,
@textptr = CASE Locked
WHEN 0 THEN TEXTPTR(SessionItemLong)
ELSE NULL
END,
@length = CASE Locked
WHEN 0 THEN DATALENGTH(SessionItemLong
ELSE NULL
END,
@locked = Locked,
Locked = 1,
/* If the Uninitialized flag (0x1) if it is set,
remove it and return InitializeItem (0x1) in actionFlags */
Flags = CASE
WHEN (Flags & 1) <> 0 THEN (Flags & ~1)
ELSE Flags
END,
@actionFlags = CASE
WHEN (Flags & 1) <> 0 THEN 1
ELSE 0
END
WHERE SessionId = @id
IF @length IS NOT NULL BEGIN
READTEXT [ASPState].dbo.ASPStateTem
END
RETURN 0
GO
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