我几个小时后就遇到了死锁错误（将近20个）。
MySp: 1205: Transaction (Process ID 55) was deadlocked on lock | communication buffer resources with another process and has been chosen as the deadlock victim. Rerun the transaction. Transaction count after EXECUTE indicates a mismatching number of BEGIN and COMMIT statements. Previous count = 1, current count = 0
我正在尝试使用（Extented Event system_health正在运行）获取更多信息，
SELECT XEvent.query('(event/data/value/deadlock)[1]') AS DeadlockGraph
FROM ( SELECT XEvent.query('.') AS XEvent
FROM ( SELECT CAST(target_data AS XML) AS TargetData
FROM sys.dm_xe_session_targets st
JOIN sys.dm_xe_sessions s
ON s.address = st.event_session_address
WHERE s.name = 'system_health'
AND st.target_name = 'ring_buffer'
) AS Data
CROSS APPLY
TargetData.nodes
('RingBufferTarget/event[@name="xml_deadlock_report"]')
AS XEventData ( XEvent )
) AS src;
更新：这是造成此问题的另一个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)
,@MyAppApplicationID INT = 1
,@LatestApplicationVersion VARCHAR(50)
)
AS
BEGIN
SET NOCOUNT ON;
DECLARE @TranCount INT;
SET @TranCount = @@TRANCOUNT;
DECLARE @OldUniqueID VARCHAR(500) = '-1';
SELECT @OldUniqueID = [UniqueID] FROM DeviceCatalog WHERE (@NativeDeviceID != '' AND [NativeDeviceID] = @NativeDeviceID);
DECLARE @Geo GEOGRAPHY = geography::STGeomFromText('POINT(' + CONVERT(VARCHAR(100), @Longitude) + ' ' + CONVERT(VARCHAR(100), @Latitude) + ')', 4326);
DECLARE @OldGeo GEOGRAPHY
,@OldCity NVARCHAR(100)
,@OldCountry NVARCHAR(100)
,@OldAddress NVARCHAR(100);
SELECT @OldGeo = [LastUpdatedLocationFromJob]
,@OldCity = [City]
,@OldCountry = [Country]
,@OldAddress = [Address]
FROM DeviceCatalog
WHERE [UniqueID] = @UniqueID;
BEGIN TRY
IF @TranCount = 0
BEGIN TRANSACTION
ELSE
SAVE TRANSACTION Insertorupdatedevicecatalog;
MERGE INTO DeviceCatalog DC
USING (SELECT @UniqueID AS UniqueID, @NativeDeviceID AS NativeDeviceID) T ON (DC.UniqueID = T.UniqueID OR DC.[NativeDeviceID] = T.NativeDeviceID)
WHEN MATCHED THEN
UPDATE
SET [OS] = @OS
,[Location] = @Geo
,[Culture] = @Culture
,[Other] = @Other
,[IPAddress] = @IPAddress
,[NativeDeviceID] = CASE WHEN DC.UniqueID = T.UniqueID THEN (CASE WHEN @NativeDeviceID IS NULL OR @NativeDeviceID = '' THEN DC.[NativeDeviceID] ELSE @NativeDeviceID END) ELSE DC.[NativeDeviceID] END
,[UniqueID] = CASE WHEN DC.[NativeDeviceID] = T.NativeDeviceID AND DC.[NativeDeviceID] <> '' THEN @UniqueID ELSE DC.UniqueID END
,[Lastmodifieddate] = CASE WHEN (@OldGeo IS NULL OR @OldAddress IS NULL OR @OldCity IS NULL OR @OldCountry IS NULL OR ISNULL(@Geo.STDistance(@OldGeo) / 1000,0) > 50) THEN GETDATE() ELSE [Lastmodifieddate] END
,[LastUpdatedByDeviceDate] = GETDATE()
,[MyAppApplicationID] = @MyAppApplicationID
,[LatestApplicationVersion] = @LatestApplicationVersion
WHEN NOT MATCHED THEN
INSERT
([OS]
,[UniqueID]
,[Location]
,[Culture]
,[Other]
,[IPAddress]
,[NativeDeviceID]
,[MyAppApplicationID]
,[LatestApplicationVersion])
VALUES (@OS
,@UniqueID
,@Geo
,@Culture
,@Other
,@IPAddress
,@NativeDeviceID
,@MyAppApplicationID
,@LatestApplicationVersion);
LBEXIT:
IF @TranCount = 0
COMMIT;
END TRY
BEGIN CATCH
DECLARE @Error INT, @Message VARCHAR(4000), @XState INT;
SELECT @Error = ERROR_NUMBER() ,@Message = ERROR_MESSAGE() ,@XState = XACT_STATE();
IF @XState = -1
ROLLBACK;
IF @XState = 1 AND @TranCount = 0
rollback
IF @XState = 1 AND @TranCount > 0
ROLLBACK TRANSACTION Insertorupdatedevicecatalog;
RAISERROR ('Insertorupdatedevicecatalog: %d: %s', 16, 1, @error, @message) ;
END CATCH
END
这是它的xdl死锁报告（从探查器得到它），
<deadlock-list>
<deadlock victim="process2a28b0188">
<process-list>
<process id="process2a28b0188" taskpriority="0" logused="228" waitresource="PAGE: 5:1:1183 " waittime="8632" ownerId="2111061378" transactionname="user_transaction" lasttranstarted="2014-10-22T12:07:28.620" XDES="0x2206d9c40" lockMode="U" schedulerid="4" kpid="12064" status="suspended" spid="70" sbid="0" ecid="2" priority="0" trancount="0" lastbatchstarted="2014-10-22T12:07:28.620" lastbatchcompleted="2014-10-22T12:07:28.620" lastattention="1900-01-01T00:00:00.620" clientapp=".Net SqlClient Data Provider" hostname="NORQ01" hostpid="3640" isolationlevel="read uncommitted (1)" xactid="2111061378" currentdb="5" lockTimeout="4294967295" clientoption1="673185824" clientoption2="128056">
<executionStack>
<frame procname="myapp.dbo.Insertorupdatedevicecatalog" line="44" stmtstart="2692" stmtend="6364" sqlhandle="0x03000500d291a62559cc2801e3a2000001000000000000000000000000000000000000000000000000000000">
MERGE INTO DeviceCatalog DC
USING (SELECT @UniqueID AS UniqueID, @NativeDeviceID AS NativeDeviceID) T ON (DC.UniqueID = T.UniqueID OR DC.[NativeDeviceID] = T.NativeDeviceID)
WHEN MATCHED THEN
UPDATE
SET [OS] = @OS
,[Location] = @Geo
,[Culture] = @Culture
,[Other] = @Other
,[IPAddress] = @IPAddress
,[NativeDeviceID] = CASE WHEN DC.UniqueID = T.UniqueID THEN (CASE WHEN @NativeDeviceID IS NULL OR @NativeDeviceID = '' THEN DC.[NativeDeviceID] ELSE @NativeDeviceID END) ELSE DC.[NativeDeviceID] END
,[UniqueID] = CASE WHEN DC.[NativeDeviceID] = T.NativeDeviceID AND DC.[NativeDeviceID] <> '' THEN @UniqueID ELSE DC.UniqueID END
,[Lastmodifieddate] = CASE WHEN (@OldGeo IS NULL OR @OldAddress IS NULL OR @OldCity IS NULL OR @OldCountry IS NULL OR ISNULL(@Geo.STDistance(@OldGeo) / 1000,0) > 50) THEN GETDATE() ELSE [Lastmodifieddate] END
,[LastUpdatedByDeviceDate] = GETDATE()
,[myappApplicationID] </frame>
</executionStack>
<inputbuf>
Proc [Database Id = 5 Object Id = 631673298] </inputbuf>
</process>
<process id="process2b46be558" taskpriority="0" logused="228" waitresource="PAGE: 5:1:1183 " waittime="4650" ownerId="2111061011" transactionname="user_transaction" lasttranstarted="2014-10-22T12:07:25.357" XDES="0x1c8e65bb0" lockMode="U" schedulerid="1" kpid="9408" status="suspended" spid="51" sbid="0" ecid="3" priority="0" trancount="0" lastbatchstarted="2014-10-22T12:07:25.357" lastbatchcompleted="2014-10-22T12:07:25.357" lastattention="1900-01-01T00:00:00.357" clientapp=".Net SqlClient Data Provider" hostname="NORQ01" hostpid="3640" isolationlevel="read uncommitted (1)" xactid="2111061011" currentdb="5" lockTimeout="4294967295" clientoption1="673185824" clientoption2="128056">
<executionStack>
<frame procname="myapp.dbo.Insertorupdatedevicecatalog" line="44" stmtstart="2692" stmtend="6364" sqlhandle="0x03000500d291a62559cc2801e3a2000001000000000000000000000000000000000000000000000000000000">
MERGE INTO DeviceCatalog DC
USING (SELECT @UniqueID AS UniqueID, @NativeDeviceID AS NativeDeviceID) T ON (DC.UniqueID = T.UniqueID OR DC.[NativeDeviceID] = T.NativeDeviceID)
WHEN MATCHED THEN
UPDATE
SET [OS] = @OS
,[Location] = @Geo
,[Culture] = @Culture
,[Other] = @Other
,[IPAddress] = @IPAddress
,[NativeDeviceID] = CASE WHEN DC.UniqueID = T.UniqueID THEN (CASE WHEN @NativeDeviceID IS NULL OR @NativeDeviceID = '' THEN DC.[NativeDeviceID] ELSE @NativeDeviceID END) ELSE DC.[NativeDeviceID] END
,[UniqueID] = CASE WHEN DC.[NativeDeviceID] = T.NativeDeviceID AND DC.[NativeDeviceID] <> '' THEN @UniqueID ELSE DC.UniqueID END
,[Lastmodifieddate] = CASE WHEN (@OldGeo IS NULL OR @OldAddress IS NULL OR @OldCity IS NULL OR @OldCountry IS NULL OR ISNULL(@Geo.STDistance(@OldGeo) / 1000,0) > 50) THEN GETDATE() ELSE [Lastmodifieddate] END
,[LastUpdatedByDeviceDate] = GETDATE()
,[myappApplicationID] </frame>
</executionStack>
<inputbuf>
Proc [Database Id = 5 Object Id = 631673298] </inputbuf>
</process>
<process id="process2bfef7c38" taskpriority="0" logused="10000" waittime="4617" schedulerid="2" kpid="1844" status="suspended" spid="51" sbid="0" ecid="0" priority="0" trancount="2" lastbatchstarted="2014-10-22T12:07:25.357" lastbatchcompleted="2014-10-22T12:07:25.357" lastattention="1900-01-01T00:00:00.357" clientapp=".Net SqlClient Data Provider" hostname="NORQ01" hostpid="3640" loginname="myapp" isolationlevel="read uncommitted (1)" xactid="2111061011" currentdb="5" lockTimeout="4294967295" clientoption1="673185824" clientoption2="128056">
<executionStack>
<frame procname="myapp.dbo.Insertorupdatedevicecatalog" line="44" stmtstart="2692" stmtend="6364" sqlhandle="0x03000500d291a62559cc2801e3a2000001000000000000000000000000000000000000000000000000000000">
MERGE INTO DeviceCatalog DC
USING (SELECT @UniqueID AS UniqueID, @NativeDeviceID AS NativeDeviceID) T ON (DC.UniqueID = T.UniqueID OR DC.[NativeDeviceID] = T.NativeDeviceID)
WHEN MATCHED THEN
UPDATE
SET [OS] = @OS
,[Location] = @Geo
,[Culture] = @Culture
,[Other] = @Other
,[IPAddress] = @IPAddress
,[NativeDeviceID] = CASE WHEN DC.UniqueID = T.UniqueID THEN (CASE WHEN @NativeDeviceID IS NULL OR @NativeDeviceID = '' THEN DC.[NativeDeviceID] ELSE @NativeDeviceID END) ELSE DC.[NativeDeviceID] END
,[UniqueID] = CASE WHEN DC.[NativeDeviceID] = T.NativeDeviceID AND DC.[NativeDeviceID] <> '' THEN @UniqueID ELSE DC.UniqueID END
,[Lastmodifieddate] = CASE WHEN (@OldGeo IS NULL OR @OldAddress IS NULL OR @OldCity IS NULL OR @OldCountry IS NULL OR ISNULL(@Geo.STDistance(@OldGeo) / 1000,0) > 50) THEN GETDATE() ELSE [Lastmodifieddate] END
,[LastUpdatedByDeviceDate] = GETDATE()
,[myappApplicationID] </frame>
</executionStack>
<inputbuf>
Proc [Database Id = 5 Object Id = 631673298] </inputbuf>
</process>
</process-list>
<resource-list>
<pagelock fileid="1" pageid="1183" dbid="5" subresource="FULL" objectname="myapp.dbo.devicecatalog" id="lock2edbca800" mode="U" associatedObjectId="72057594051952640">
<owner-list>
<owner id="process2bfef7c38" mode="U"/>
</owner-list>
<waiter-list>
<waiter id="process2a28b0188" mode="U" requestType="wait"/>
</waiter-list>
</pagelock>
<pagelock fileid="1" pageid="1183" dbid="5" subresource="FULL" objectname="myapp.dbo.devicecatalog" id="lock2edbca800" mode="U" associatedObjectId="72057594051952640">
<owner-list>
<owner id="process2a28b0188" mode="U" requestType="wait"/>
</owner-list>
<waiter-list>
<waiter id="process2b46be558" mode="U" requestType="wait"/>
</waiter-list>
</pagelock>
<exchangeEvent id="Pipe222b92900" WaitType="e_waitPipeGetRow" nodeId="9">
<owner-list>
<owner id="process2b46be558"/>
</owner-list>
<waiter-list>
<waiter id="process2bfef7c38"/>
</waiter-list>
</exchangeEvent>
</resource-list>
</deadlock>
</deadlock-list>