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sp_BlitzLock.sql
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IF OBJECT_ID('dbo.sp_BlitzLock') IS NULL
EXEC ('CREATE PROCEDURE dbo.sp_BlitzLock AS RETURN 0;');
GO
ALTER PROCEDURE dbo.sp_BlitzLock
(
@Top INT = 2147483647,
@DatabaseName NVARCHAR(256) = NULL,
@StartDate DATETIME = '19000101',
@EndDate DATETIME = '99991231',
@ObjectName NVARCHAR(1000) = NULL,
@StoredProcName NVARCHAR(1000) = NULL,
@AppName NVARCHAR(256) = NULL,
@HostName NVARCHAR(256) = NULL,
@LoginName NVARCHAR(256) = NULL,
@EventSessionPath VARCHAR(256) = 'system_health*.xel',
@VictimsOnly BIT = 0,
@Debug BIT = 0,
@Help BIT = 0,
@Version VARCHAR(30) = NULL OUTPUT,
@VersionDate DATETIME = NULL OUTPUT,
@VersionCheckMode BIT = 0,
@OutputDatabaseName NVARCHAR(256) = NULL ,
@OutputSchemaName NVARCHAR(256) = 'dbo' , --ditto as below
@OutputTableName NVARCHAR(256) = 'BlitzLock', --put a standard here no need to check later in the script
@ExportToExcel BIT = 0
)
WITH RECOMPILE
AS
BEGIN
SET NOCOUNT ON;
SET STATISTICS XML OFF;
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
SELECT @Version = '8.11', @VersionDate = '20221013';
IF(@VersionCheckMode = 1)
BEGIN
RETURN;
END;
IF @Help = 1
BEGIN
PRINT '
/*
sp_BlitzLock from http://FirstResponderKit.org
This script checks for and analyzes deadlocks from the system health session or a custom extended event path
Variables you can use:
@Top: Use if you want to limit the number of deadlocks to return.
This is ordered by event date ascending
@DatabaseName: If you want to filter to a specific database
@StartDate: The date you want to start searching on.
@EndDate: The date you want to stop searching on.
@ObjectName: If you want to filter to a specific able.
The object name has to be fully qualified ''Database.Schema.Table''
@StoredProcName: If you want to search for a single stored proc
The proc name has to be fully qualified ''Database.Schema.Sproc''
@AppName: If you want to filter to a specific application
@HostName: If you want to filter to a specific host
@LoginName: If you want to filter to a specific login
@EventSessionPath: If you want to point this at an XE session rather than the system health session.
@OutputDatabaseName: If you want to output information to a specific database
@OutputSchemaName: Specify a schema name to output information to a specific Schema
@OutputTableName: Specify table name to to output information to a specific table
To learn more, visit http://FirstResponderKit.org where you can download new
versions for free, watch training videos on how it works, get more info on
the findings, contribute your own code, and more.
Known limitations of this version:
- Only SQL Server 2012 and newer is supported
- If your tables have weird characters in them (https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references) you may get errors trying to parse the XML.
I took a long look at this one, and:
1) Trying to account for all the weird places these could crop up is a losing effort.
2) Replace is slow af on lots of XML.
Unknown limitations of this version:
- None. (If we knew them, they would be known. Duh.)
MIT License
Copyright (c) 2021 Brent Ozar Unlimited
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/';
RETURN;
END; /* @Help = 1 */
DECLARE @ProductVersion NVARCHAR(128),
@ProductVersionMajor FLOAT,
@ProductVersionMinor INT,
@ObjectFullName NVARCHAR(2000);
SET @ProductVersion = CAST(SERVERPROPERTY('ProductVersion') AS NVARCHAR(128));
SELECT @ProductVersionMajor = SUBSTRING(@ProductVersion, 1, CHARINDEX('.', @ProductVersion) + 1),
@ProductVersionMinor = PARSENAME(CONVERT(VARCHAR(32), @ProductVersion), 2);
IF @ProductVersionMajor < 11.0
BEGIN
RAISERROR(
'sp_BlitzLock will throw a bunch of angry errors on versions of SQL Server earlier than 2012.',
0,
1) WITH NOWAIT;
RETURN;
END;
IF ((SELECT SERVERPROPERTY ('EDITION')) = 'SQL Azure'
AND
LOWER(@EventSessionPath) NOT LIKE 'http%')
BEGIN
RAISERROR(
'The default storage path doesn''t work in Azure SQLDB/Managed instances.
You need to use an Azure storage account, and the path has to look like this: https://StorageAccount.blob.core.windows.net/Container/FileName.xel',
0,
1) WITH NOWAIT;
RETURN;
END;
IF @Top IS NULL
SET @Top = 2147483647;
IF @StartDate IS NULL
SET @StartDate = '19000101';
IF @EndDate IS NULL
SET @EndDate = '99991231';
IF OBJECT_ID('tempdb..#deadlock_data') IS NOT NULL
DROP TABLE #deadlock_data;
IF OBJECT_ID('tempdb..#deadlock_process') IS NOT NULL
DROP TABLE #deadlock_process;
IF OBJECT_ID('tempdb..#deadlock_stack') IS NOT NULL
DROP TABLE #deadlock_stack;
IF OBJECT_ID('tempdb..#deadlock_resource') IS NOT NULL
DROP TABLE #deadlock_resource;
IF OBJECT_ID('tempdb..#deadlock_owner_waiter') IS NOT NULL
DROP TABLE #deadlock_owner_waiter;
IF OBJECT_ID('tempdb..#deadlock_findings') IS NOT NULL
DROP TABLE #deadlock_findings;
CREATE TABLE #deadlock_findings
(
id INT IDENTITY(1, 1) PRIMARY KEY CLUSTERED,
check_id INT NOT NULL,
database_name NVARCHAR(256),
object_name NVARCHAR(1000),
finding_group NVARCHAR(100),
finding NVARCHAR(4000)
);
DECLARE @d VARCHAR(40), @StringToExecute NVARCHAR(4000),@StringToExecuteParams NVARCHAR(500),@r NVARCHAR(200),@OutputTableFindings NVARCHAR(100),@DeadlockCount INT;
DECLARE @ServerName NVARCHAR(256)
DECLARE @OutputDatabaseCheck BIT;
SET @d = CONVERT(VARCHAR(40), GETDATE(), 109);
SET @OutputTableFindings = '[BlitzLockFindings]'
SET @ServerName = (select @@ServerName)
if(@OutputDatabaseName is not null)
BEGIN --if databaseName is set do some sanity checks and put [] around def.
if( (select name from sys.databases where name=@OutputDatabaseName) is null ) --if database is invalid raiserror and set bitcheck
BEGIN
RAISERROR('Database Name for output of table is invalid please correct, Output to Table will not be preformed', 0, 1, @d) WITH NOWAIT;
set @OutputDatabaseCheck = -1 -- -1 invalid/false, 0 = good/true
END
ELSE
BEGIN
set @OutputDatabaseCheck = 0
select @StringToExecute = N'select @r = name from ' + '' + @OutputDatabaseName +
'' + '.sys.objects where type_desc=''USER_TABLE'' and name=' + '''' + @OutputTableName + '''',
@StringToExecuteParams = N'@OutputDatabaseName NVARCHAR(200),@OutputTableName NVARCHAR(200),@r NVARCHAR(200) OUTPUT'
exec sp_executesql @StringToExecute,@StringToExecuteParams,@OutputDatabaseName,@OutputTableName,@r OUTPUT
--put covers around all before.
SELECT @OutputDatabaseName = QUOTENAME(@OutputDatabaseName),
@OutputTableName = QUOTENAME(@OutputTableName),
@OutputSchemaName = QUOTENAME(@OutputSchemaName)
if(@r is not null) --if it is not null, there is a table, so check for newly added columns
BEGIN
/* If the table doesn't have the new spid column, add it. See Github #3101. */
SET @ObjectFullName = @OutputDatabaseName + N'.' + @OutputSchemaName + N'.' + @OutputTableName;
SET @StringToExecute = N'IF NOT EXISTS (SELECT * FROM ' + @OutputDatabaseName + N'.sys.all_columns
WHERE object_id = (OBJECT_ID(''' + @ObjectFullName + ''')) AND name = ''spid'')
ALTER TABLE ' + @ObjectFullName + N' ADD spid SMALLINT NULL;';
EXEC(@StringToExecute);
/* If the table doesn't have the new wait_resource column, add it. See Github #3101. */
SET @ObjectFullName = @OutputDatabaseName + N'.' + @OutputSchemaName + N'.' + @OutputTableName;
SET @StringToExecute = N'IF NOT EXISTS (SELECT * FROM ' + @OutputDatabaseName + N'.sys.all_columns
WHERE object_id = (OBJECT_ID(''' + @ObjectFullName + ''')) AND name = ''wait_resource'')
ALTER TABLE ' + @ObjectFullName + N' ADD wait_resource NVARCHAR(MAX) NULL;';
EXEC(@StringToExecute);
END
ELSE --if(@r is not null) --if it is null there is no table, create it from above execution
BEGIN
select @StringToExecute = N'use ' + @OutputDatabaseName + ';create table ' + @OutputSchemaName + '.' + @OutputTableName + ' (
ServerName NVARCHAR(256),
deadlock_type NVARCHAR(256),
event_date datetime,
database_name NVARCHAR(256),
spid SMALLINT,
deadlock_group NVARCHAR(256),
query XML,
object_names XML,
isolation_level NVARCHAR(256),
owner_mode NVARCHAR(256),
waiter_mode NVARCHAR(256),
transaction_count bigint,
login_name NVARCHAR(256),
host_name NVARCHAR(256),
client_app NVARCHAR(256),
wait_time BIGINT,
wait_resource NVARCHAR(max),
priority smallint,
log_used BIGINT,
last_tran_started datetime,
last_batch_started datetime,
last_batch_completed datetime,
transaction_name NVARCHAR(256),
owner_waiter_type NVARCHAR(256),
owner_activity NVARCHAR(256),
owner_waiter_activity NVARCHAR(256),
owner_merging NVARCHAR(256),
owner_spilling NVARCHAR(256),
owner_waiting_to_close NVARCHAR(256),
waiter_waiter_type NVARCHAR(256),
waiter_owner_activity NVARCHAR(256),
waiter_waiter_activity NVARCHAR(256),
waiter_merging NVARCHAR(256),
waiter_spilling NVARCHAR(256),
waiter_waiting_to_close NVARCHAR(256),
deadlock_graph XML)',
@StringToExecuteParams = N'@OutputDatabaseName NVARCHAR(200),@OutputSchemaName NVARCHAR(100),@OutputTableName NVARCHAR(200)'
exec sp_executesql @StringToExecute, @StringToExecuteParams,@OutputDatabaseName,@OutputSchemaName,@OutputTableName
--table created.
select @StringToExecute = N'select @r = name from ' + '' + @OutputDatabaseName +
'' + '.sys.objects where type_desc=''USER_TABLE'' and name=''BlitzLockFindings''',
@StringToExecuteParams = N'@OutputDatabaseName NVARCHAR(200),@r NVARCHAR(200) OUTPUT'
exec sp_executesql @StringToExecute,@StringToExecuteParams,@OutputDatabaseName,@r OUTPUT
if(@r is null) --if table does not excist
BEGIN
select @OutputTableFindings=N'[BlitzLockFindings]',
@StringToExecute = N'use ' + @OutputDatabaseName + ';create table ' + @OutputSchemaName + '.' + @OutputTableFindings + ' (
ServerName NVARCHAR(256),
check_id INT,
database_name NVARCHAR(256),
object_name NVARCHAR(1000),
finding_group NVARCHAR(100),
finding NVARCHAR(4000))',
@StringToExecuteParams = N'@OutputDatabaseName NVARCHAR(200),@OutputSchemaName NVARCHAR(100),@OutputTableFindings NVARCHAR(200)'
exec sp_executesql @StringToExecute, @StringToExecuteParams, @OutputDatabaseName,@OutputSchemaName,@OutputTableFindings
END
END
--create synonym for deadlockfindings.
if((select name from sys.objects where name='DeadlockFindings' and type_desc='SYNONYM')IS NOT NULL)
BEGIN
RAISERROR('found synonym', 0, 1) WITH NOWAIT;
drop synonym DeadlockFindings;
END
set @StringToExecute = 'CREATE SYNONYM DeadlockFindings FOR ' + @OutputDatabaseName + '.' + @OutputSchemaName + '.' + @OutputTableFindings;
exec sp_executesql @StringToExecute
--create synonym for deadlock table.
if((select name from sys.objects where name='DeadLockTbl' and type_desc='SYNONYM') IS NOT NULL)
BEGIN
drop SYNONYM DeadLockTbl;
END
set @StringToExecute = 'CREATE SYNONYM DeadLockTbl FOR ' + @OutputDatabaseName + '.' + @OutputSchemaName + '.' + @OutputTableName;
exec sp_executesql @StringToExecute
END
END
CREATE TABLE #t (id INT NOT NULL);
/* WITH ROWCOUNT doesn't work on Amazon RDS - see: https://github.com/BrentOzarULTD/SQL-Server-First-Responder-Kit/issues/2037 */
IF LEFT(CAST(SERVERPROPERTY('ComputerNamePhysicalNetBIOS') AS VARCHAR(8000)), 8) <> 'EC2AMAZ-'
AND LEFT(CAST(SERVERPROPERTY('MachineName') AS VARCHAR(8000)), 8) <> 'EC2AMAZ-'
AND db_id('rdsadmin') IS NULL
BEGIN;
BEGIN TRY;
UPDATE STATISTICS #t WITH ROWCOUNT = 100000000, PAGECOUNT = 100000000;
END TRY
BEGIN CATCH;
/* Misleading error returned, if run without permissions to update statistics the error returned is "Cannot find object".
Catching specific error, and returning message with better info. If any other error is returned, then throw as normal */
IF (ERROR_NUMBER() = 1088)
BEGIN;
SET @d = CONVERT(VARCHAR(40), GETDATE(), 109);
RAISERROR('Cannot run UPDATE STATISTICS on temp table without db_owner or sysadmin permissions %s', 0, 1, @d) WITH NOWAIT;
END;
ELSE
BEGIN;
THROW;
END;
END CATCH;
END;
/*Grab the initial set of XML to parse*/
SET @d = CONVERT(VARCHAR(40), GETDATE(), 109);
RAISERROR('Grab the initial set of XML to parse at %s', 0, 1, @d) WITH NOWAIT;
WITH xml
AS ( SELECT CONVERT(XML, event_data) AS deadlock_xml
FROM sys.fn_xe_file_target_read_file(@EventSessionPath, NULL, NULL, NULL) )
SELECT ISNULL(xml.deadlock_xml, '') AS deadlock_xml
INTO #deadlock_data
FROM xml
LEFT JOIN #t AS t
ON 1 = 1
CROSS APPLY xml.deadlock_xml.nodes('/event/@name') AS x(c)
WHERE 1 = 1
AND x.c.exist('/event/@name[ .= "xml_deadlock_report"]') = 1
AND CONVERT(datetime, SWITCHOFFSET(CONVERT(datetimeoffset, xml.deadlock_xml.value('(/event/@timestamp)[1]', 'datetime') ), DATENAME(TzOffset, SYSDATETIMEOFFSET()))) > @StartDate
AND CONVERT(datetime, SWITCHOFFSET(CONVERT(datetimeoffset, xml.deadlock_xml.value('(/event/@timestamp)[1]', 'datetime') ), DATENAME(TzOffset, SYSDATETIMEOFFSET()))) < @EndDate
ORDER BY xml.deadlock_xml.value('(/event/@timestamp)[1]', 'datetime') DESC
OPTION ( RECOMPILE );
/*Optimization: if we got back more rows than @Top, remove them. This seems to be better than using @Top in the query above as that results in excessive memory grant*/
SET @DeadlockCount = @@ROWCOUNT
IF( @Top < @DeadlockCount ) BEGIN
WITH T
AS (
SELECT TOP ( @DeadlockCount - @Top) *
FROM #deadlock_data
ORDER BY #deadlock_data.deadlock_xml.value('(/event/@timestamp)[1]', 'datetime') ASC)
DELETE FROM T
END
/*Parse process and input buffer XML*/
SET @d = CONVERT(VARCHAR(40), GETDATE(), 109);
RAISERROR('Parse process and input buffer XML %s', 0, 1, @d) WITH NOWAIT;
SELECT q.event_date,
q.victim_id,
CONVERT(BIT, q.is_parallel) AS is_parallel,
q.deadlock_graph,
q.id,
q.spid,
q.database_id,
q.priority,
q.log_used,
q.wait_resource,
q.wait_time,
q.transaction_name,
q.last_tran_started,
q.last_batch_started,
q.last_batch_completed,
q.lock_mode,
q.transaction_count,
q.client_app,
q.host_name,
q.login_name,
q.isolation_level,
q.process_xml,
ISNULL(ca2.ib.query('.'), '') AS input_buffer
INTO #deadlock_process
FROM ( SELECT dd.deadlock_xml,
CONVERT(DATETIME2(7), SWITCHOFFSET(CONVERT(datetimeoffset, dd.event_date ), DATENAME(TzOffset, SYSDATETIMEOFFSET()))) AS event_date,
dd.victim_id,
CONVERT(tinyint, dd.is_parallel) + CONVERT(tinyint, dd.is_parallel_batch) AS is_parallel,
dd.deadlock_graph,
ca.dp.value('@id', 'NVARCHAR(256)') AS id,
ca.dp.value('@spid', 'SMALLINT') AS spid,
ca.dp.value('@currentdb', 'BIGINT') AS database_id,
ca.dp.value('@priority', 'SMALLINT') AS priority,
ca.dp.value('@logused', 'BIGINT') AS log_used,
ca.dp.value('@waitresource', 'NVARCHAR(256)') AS wait_resource,
ca.dp.value('@waittime', 'BIGINT') AS wait_time,
ca.dp.value('@transactionname', 'NVARCHAR(256)') AS transaction_name,
ca.dp.value('@lasttranstarted', 'DATETIME2(7)') AS last_tran_started,
ca.dp.value('@lastbatchstarted', 'DATETIME2(7)') AS last_batch_started,
ca.dp.value('@lastbatchcompleted', 'DATETIME2(7)') AS last_batch_completed,
ca.dp.value('@lockMode', 'NVARCHAR(256)') AS lock_mode,
ca.dp.value('@trancount', 'BIGINT') AS transaction_count,
ca.dp.value('@clientapp', 'NVARCHAR(256)') AS client_app,
ca.dp.value('@hostname', 'NVARCHAR(256)') AS host_name,
ca.dp.value('@loginname', 'NVARCHAR(256)') AS login_name,
ca.dp.value('@isolationlevel', 'NVARCHAR(256)') AS isolation_level,
ISNULL(ca.dp.query('.'), '') AS process_xml
FROM ( SELECT d1.deadlock_xml,
d1.deadlock_xml.value('(event/@timestamp)[1]', 'DATETIME2') AS event_date,
d1.deadlock_xml.value('(//deadlock/victim-list/victimProcess/@id)[1]', 'NVARCHAR(256)') AS victim_id,
d1.deadlock_xml.exist('//deadlock/resource-list/exchangeEvent') AS is_parallel,
d1.deadlock_xml.exist('//deadlock/resource-list/SyncPoint') AS is_parallel_batch,
d1.deadlock_xml.query('/event/data/value/deadlock') AS deadlock_graph
FROM #deadlock_data AS d1 ) AS dd
CROSS APPLY dd.deadlock_xml.nodes('//deadlock/process-list/process') AS ca(dp)
WHERE (ca.dp.value('@currentdb', 'BIGINT') = DB_ID(@DatabaseName) OR @DatabaseName IS NULL)
AND (ca.dp.value('@clientapp', 'NVARCHAR(256)') = @AppName OR @AppName IS NULL)
AND (ca.dp.value('@hostname', 'NVARCHAR(256)') = @HostName OR @HostName IS NULL)
AND (ca.dp.value('@loginname', 'NVARCHAR(256)') = @LoginName OR @LoginName IS NULL)
) AS q
CROSS APPLY q.deadlock_xml.nodes('//deadlock/process-list/process/inputbuf') AS ca2(ib)
OPTION ( RECOMPILE );
/*Parse execution stack XML*/
SET @d = CONVERT(VARCHAR(40), GETDATE(), 109);
RAISERROR('Parse execution stack XML %s', 0, 1, @d) WITH NOWAIT;
SELECT DISTINCT
dp.id,
dp.event_date,
ca.dp.value('@procname', 'NVARCHAR(1000)') AS proc_name,
ca.dp.value('@sqlhandle', 'NVARCHAR(128)') AS sql_handle
INTO #deadlock_stack
FROM #deadlock_process AS dp
CROSS APPLY dp.process_xml.nodes('//executionStack/frame') AS ca(dp)
WHERE (ca.dp.value('@procname', 'NVARCHAR(256)') = @StoredProcName OR @StoredProcName IS NULL)
OPTION ( RECOMPILE );
/*Grab the full resource list*/
SET @d = CONVERT(VARCHAR(40), GETDATE(), 109);
RAISERROR('Grab the full resource list %s', 0, 1, @d) WITH NOWAIT;
SELECT
CONVERT(DATETIME2(7), SWITCHOFFSET(CONVERT(datetimeoffset, dr.event_date), DATENAME(TzOffset, SYSDATETIMEOFFSET()))) AS event_date,
dr.victim_id,
dr.resource_xml
INTO #deadlock_resource
FROM
(
SELECT dd.deadlock_xml.value('(event/@timestamp)[1]', 'DATETIME2') AS event_date,
dd.deadlock_xml.value('(//deadlock/victim-list/victimProcess/@id)[1]', 'NVARCHAR(256)') AS victim_id,
ISNULL(ca.dp.query('.'), '') AS resource_xml
FROM #deadlock_data AS dd
CROSS APPLY dd.deadlock_xml.nodes('//deadlock/resource-list') AS ca(dp)
) AS dr
OPTION ( RECOMPILE );
/*Parse object locks*/
SET @d = CONVERT(VARCHAR(40), GETDATE(), 109);
RAISERROR('Parse object locks %s', 0, 1, @d) WITH NOWAIT;
SELECT DISTINCT
ca.event_date,
ca.database_id,
ca.object_name,
ca.lock_mode,
ca.index_name,
ca.associatedObjectId,
w.l.value('@id', 'NVARCHAR(256)') AS waiter_id,
w.l.value('@mode', 'NVARCHAR(256)') AS waiter_mode,
o.l.value('@id', 'NVARCHAR(256)') AS owner_id,
o.l.value('@mode', 'NVARCHAR(256)') AS owner_mode,
N'OBJECT' AS lock_type
INTO #deadlock_owner_waiter
FROM (
SELECT dr.event_date,
ca.dr.value('@dbid', 'BIGINT') AS database_id,
ca.dr.value('@objectname', 'NVARCHAR(256)') AS object_name,
ca.dr.value('@mode', 'NVARCHAR(256)') AS lock_mode,
ca.dr.value('@indexname', 'NVARCHAR(256)') AS index_name,
ca.dr.value('@associatedObjectId', 'BIGINT') AS associatedObjectId,
ca.dr.query('.') AS dr
FROM #deadlock_resource AS dr
CROSS APPLY dr.resource_xml.nodes('//resource-list/objectlock') AS ca(dr)
) AS ca
CROSS APPLY ca.dr.nodes('//waiter-list/waiter') AS w(l)
CROSS APPLY ca.dr.nodes('//owner-list/owner') AS o(l)
WHERE (ca.object_name = @ObjectName OR @ObjectName IS NULL)
OPTION ( RECOMPILE );
/*Parse page locks*/
SET @d = CONVERT(VARCHAR(40), GETDATE(), 109);
RAISERROR('Parse page locks %s', 0, 1, @d) WITH NOWAIT;
INSERT #deadlock_owner_waiter WITH(TABLOCKX)
SELECT DISTINCT
ca.event_date,
ca.database_id,
ca.object_name,
ca.lock_mode,
ca.index_name,
ca.associatedObjectId,
w.l.value('@id', 'NVARCHAR(256)') AS waiter_id,
w.l.value('@mode', 'NVARCHAR(256)') AS waiter_mode,
o.l.value('@id', 'NVARCHAR(256)') AS owner_id,
o.l.value('@mode', 'NVARCHAR(256)') AS owner_mode,
N'PAGE' AS lock_type
FROM (
SELECT dr.event_date,
ca.dr.value('@dbid', 'BIGINT') AS database_id,
ca.dr.value('@objectname', 'NVARCHAR(256)') AS object_name,
ca.dr.value('@mode', 'NVARCHAR(256)') AS lock_mode,
ca.dr.value('@indexname', 'NVARCHAR(256)') AS index_name,
ca.dr.value('@associatedObjectId', 'BIGINT') AS associatedObjectId,
ca.dr.query('.') AS dr
FROM #deadlock_resource AS dr
CROSS APPLY dr.resource_xml.nodes('//resource-list/pagelock') AS ca(dr)
) AS ca
CROSS APPLY ca.dr.nodes('//waiter-list/waiter') AS w(l)
CROSS APPLY ca.dr.nodes('//owner-list/owner') AS o(l)
OPTION ( RECOMPILE );
/*Parse key locks*/
SET @d = CONVERT(VARCHAR(40), GETDATE(), 109);
RAISERROR('Parse key locks %s', 0, 1, @d) WITH NOWAIT;
INSERT #deadlock_owner_waiter WITH(TABLOCKX)
SELECT DISTINCT
ca.event_date,
ca.database_id,
ca.object_name,
ca.lock_mode,
ca.index_name,
ca.associatedObjectId,
w.l.value('@id', 'NVARCHAR(256)') AS waiter_id,
w.l.value('@mode', 'NVARCHAR(256)') AS waiter_mode,
o.l.value('@id', 'NVARCHAR(256)') AS owner_id,
o.l.value('@mode', 'NVARCHAR(256)') AS owner_mode,
N'KEY' AS lock_type
FROM (
SELECT dr.event_date,
ca.dr.value('@dbid', 'BIGINT') AS database_id,
ca.dr.value('@objectname', 'NVARCHAR(256)') AS object_name,
ca.dr.value('@mode', 'NVARCHAR(256)') AS lock_mode,
ca.dr.value('@indexname', 'NVARCHAR(256)') AS index_name,
ca.dr.value('@associatedObjectId', 'BIGINT') AS associatedObjectId,
ca.dr.query('.') AS dr
FROM #deadlock_resource AS dr
CROSS APPLY dr.resource_xml.nodes('//resource-list/keylock') AS ca(dr)
) AS ca
CROSS APPLY ca.dr.nodes('//waiter-list/waiter') AS w(l)
CROSS APPLY ca.dr.nodes('//owner-list/owner') AS o(l)
OPTION ( RECOMPILE );
/*Parse RID locks*/
SET @d = CONVERT(VARCHAR(40), GETDATE(), 109);
RAISERROR('Parse RID locks %s', 0, 1, @d) WITH NOWAIT;
INSERT #deadlock_owner_waiter WITH(TABLOCKX)
SELECT DISTINCT
ca.event_date,
ca.database_id,
ca.object_name,
ca.lock_mode,
ca.index_name,
ca.associatedObjectId,
w.l.value('@id', 'NVARCHAR(256)') AS waiter_id,
w.l.value('@mode', 'NVARCHAR(256)') AS waiter_mode,
o.l.value('@id', 'NVARCHAR(256)') AS owner_id,
o.l.value('@mode', 'NVARCHAR(256)') AS owner_mode,
N'RID' AS lock_type
FROM (
SELECT dr.event_date,
ca.dr.value('@dbid', 'BIGINT') AS database_id,
ca.dr.value('@objectname', 'NVARCHAR(256)') AS object_name,
ca.dr.value('@mode', 'NVARCHAR(256)') AS lock_mode,
ca.dr.value('@indexname', 'NVARCHAR(256)') AS index_name,
ca.dr.value('@associatedObjectId', 'BIGINT') AS associatedObjectId,
ca.dr.query('.') AS dr
FROM #deadlock_resource AS dr
CROSS APPLY dr.resource_xml.nodes('//resource-list/ridlock') AS ca(dr)
) AS ca
CROSS APPLY ca.dr.nodes('//waiter-list/waiter') AS w(l)
CROSS APPLY ca.dr.nodes('//owner-list/owner') AS o(l)
OPTION ( RECOMPILE );
/*Parse row group locks*/
SET @d = CONVERT(VARCHAR(40), GETDATE(), 109);
RAISERROR('Parse row group locks %s', 0, 1, @d) WITH NOWAIT;
INSERT #deadlock_owner_waiter WITH(TABLOCKX)
SELECT DISTINCT
ca.event_date,
ca.database_id,
ca.object_name,
ca.lock_mode,
ca.index_name,
ca.associatedObjectId,
w.l.value('@id', 'NVARCHAR(256)') AS waiter_id,
w.l.value('@mode', 'NVARCHAR(256)') AS waiter_mode,
o.l.value('@id', 'NVARCHAR(256)') AS owner_id,
o.l.value('@mode', 'NVARCHAR(256)') AS owner_mode,
N'ROWGROUP' AS lock_type
FROM (
SELECT dr.event_date,
ca.dr.value('@dbid', 'BIGINT') AS database_id,
ca.dr.value('@objectname', 'NVARCHAR(256)') AS object_name,
ca.dr.value('@mode', 'NVARCHAR(256)') AS lock_mode,
ca.dr.value('@indexname', 'NVARCHAR(256)') AS index_name,
ca.dr.value('@associatedObjectId', 'BIGINT') AS associatedObjectId,
ca.dr.query('.') AS dr
FROM #deadlock_resource AS dr
CROSS APPLY dr.resource_xml.nodes('//resource-list/rowgrouplock') AS ca(dr)
) AS ca
CROSS APPLY ca.dr.nodes('//waiter-list/waiter') AS w(l)
CROSS APPLY ca.dr.nodes('//owner-list/owner') AS o(l)
OPTION ( RECOMPILE );
UPDATE d
SET d.index_name = d.object_name
+ '.HEAP'
FROM #deadlock_owner_waiter AS d
WHERE lock_type IN (N'HEAP', N'RID')
OPTION(RECOMPILE);
/*Parse parallel deadlocks*/
SET @d = CONVERT(VARCHAR(40), GETDATE(), 109);
RAISERROR('Parse parallel deadlocks %s', 0, 1, @d) WITH NOWAIT;
SELECT DISTINCT
ca.id,
ca.event_date,
ca.wait_type,
ca.node_id,
ca.waiter_type,
ca.owner_activity,
ca.waiter_activity,
ca.merging,
ca.spilling,
ca.waiting_to_close,
w.l.value('@id', 'NVARCHAR(256)') AS waiter_id,
o.l.value('@id', 'NVARCHAR(256)') AS owner_id
INTO #deadlock_resource_parallel
FROM (
SELECT dr.event_date,
ca.dr.value('@id', 'NVARCHAR(256)') AS id,
ca.dr.value('@WaitType', 'NVARCHAR(256)') AS wait_type,
ca.dr.value('@nodeId', 'BIGINT') AS node_id,
/* These columns are in 2017 CU5 ONLY */
ca.dr.value('@waiterType', 'NVARCHAR(256)') AS waiter_type,
ca.dr.value('@ownerActivity', 'NVARCHAR(256)') AS owner_activity,
ca.dr.value('@waiterActivity', 'NVARCHAR(256)') AS waiter_activity,
ca.dr.value('@merging', 'NVARCHAR(256)') AS merging,
ca.dr.value('@spilling', 'NVARCHAR(256)') AS spilling,
ca.dr.value('@waitingToClose', 'NVARCHAR(256)') AS waiting_to_close,
/* */
ca.dr.query('.') AS dr
FROM #deadlock_resource AS dr
CROSS APPLY dr.resource_xml.nodes('//resource-list/exchangeEvent') AS ca(dr)
) AS ca
CROSS APPLY ca.dr.nodes('//waiter-list/waiter') AS w(l)
CROSS APPLY ca.dr.nodes('//owner-list/owner') AS o(l)
OPTION ( RECOMPILE );
/*Get rid of parallel noise*/
SET @d = CONVERT(VARCHAR(40), GETDATE(), 109);
RAISERROR('Get rid of parallel noise %s', 0, 1, @d) WITH NOWAIT;
WITH c
AS
(
SELECT *, ROW_NUMBER() OVER ( PARTITION BY drp.owner_id, drp.waiter_id ORDER BY drp.event_date ) AS rn
FROM #deadlock_resource_parallel AS drp
)
DELETE FROM c
WHERE c.rn > 1
OPTION ( RECOMPILE );
/*Get rid of nonsense*/
SET @d = CONVERT(VARCHAR(40), GETDATE(), 109);
RAISERROR('Get rid of nonsense %s', 0, 1, @d) WITH NOWAIT;
DELETE dow
FROM #deadlock_owner_waiter AS dow
WHERE dow.owner_id = dow.waiter_id
OPTION ( RECOMPILE );
/*Add some nonsense*/
ALTER TABLE #deadlock_process
ADD waiter_mode NVARCHAR(256),
owner_mode NVARCHAR(256),
is_victim AS CONVERT(BIT, CASE WHEN id = victim_id THEN 1 ELSE 0 END);
/*Update some nonsense*/
SET @d = CONVERT(VARCHAR(40), GETDATE(), 109);
RAISERROR('Update some nonsense part 1 %s', 0, 1, @d) WITH NOWAIT;
UPDATE dp
SET dp.owner_mode = dow.owner_mode
FROM #deadlock_process AS dp
JOIN #deadlock_owner_waiter AS dow
ON dp.id = dow.owner_id
AND dp.event_date = dow.event_date
WHERE dp.is_victim = 0
OPTION ( RECOMPILE );
SET @d = CONVERT(VARCHAR(40), GETDATE(), 109);
RAISERROR('Update some nonsense part 2 %s', 0, 1, @d) WITH NOWAIT;
UPDATE dp
SET dp.waiter_mode = dow.waiter_mode
FROM #deadlock_process AS dp
JOIN #deadlock_owner_waiter AS dow
ON dp.victim_id = dow.waiter_id
AND dp.event_date = dow.event_date
WHERE dp.is_victim = 1
OPTION ( RECOMPILE );
/*Get Agent Job and Step names*/
SET @d = CONVERT(VARCHAR(40), GETDATE(), 109);
RAISERROR('Get Agent Job and Step names %s', 0, 1, @d) WITH NOWAIT;
SELECT *,
CONVERT(UNIQUEIDENTIFIER,
CONVERT(XML, '').value('xs:hexBinary(substring(sql:column("x.job_id"), 0) )', 'BINARY(16)')
) AS job_id_guid
INTO #agent_job
FROM (
SELECT dp.event_date,
dp.victim_id,
dp.id,
dp.database_id,
dp.client_app,
SUBSTRING(dp.client_app,
CHARINDEX('0x', dp.client_app) + LEN('0x'),
32
) AS job_id,
SUBSTRING(dp.client_app,
CHARINDEX(': Step ', dp.client_app) + LEN(': Step '),
CHARINDEX(')', dp.client_app, CHARINDEX(': Step ', dp.client_app))
- (CHARINDEX(': Step ', dp.client_app)
+ LEN(': Step '))
) AS step_id
FROM #deadlock_process AS dp
WHERE dp.client_app LIKE 'SQLAgent - %'
AND dp.client_app <> 'SQLAgent - Initial Boot Probe'
) AS x
OPTION ( RECOMPILE );
ALTER TABLE #agent_job ADD job_name NVARCHAR(256),
step_name NVARCHAR(256);
IF SERVERPROPERTY('EngineEdition') NOT IN (5, 6) /* Azure SQL DB doesn't support querying jobs */
AND NOT (LEFT(CAST(SERVERPROPERTY('ComputerNamePhysicalNetBIOS') AS VARCHAR(8000)), 8) = 'EC2AMAZ-' /* Neither does Amazon RDS Express Edition */
AND LEFT(CAST(SERVERPROPERTY('MachineName') AS VARCHAR(8000)), 8) = 'EC2AMAZ-'
AND db_id('rdsadmin') IS NOT NULL
AND EXISTS(SELECT * FROM master.sys.all_objects WHERE name IN ('rds_startup_tasks', 'rds_help_revlogin', 'rds_hexadecimal', 'rds_failover_tracking', 'rds_database_tracking', 'rds_track_change'))
)
BEGIN
SET @StringToExecute = N'UPDATE aj
SET aj.job_name = j.name,
aj.step_name = s.step_name
FROM msdb.dbo.sysjobs AS j
JOIN msdb.dbo.sysjobsteps AS s
ON j.job_id = s.job_id
JOIN #agent_job AS aj
ON aj.job_id_guid = j.job_id
AND aj.step_id = s.step_id
OPTION ( RECOMPILE );';
EXEC(@StringToExecute);
END
UPDATE dp
SET dp.client_app =
CASE WHEN dp.client_app LIKE N'SQLAgent - %'
THEN N'SQLAgent - Job: '
+ aj.job_name
+ N' Step: '
+ aj.step_name
ELSE dp.client_app
END
FROM #deadlock_process AS dp
JOIN #agent_job AS aj
ON dp.event_date = aj.event_date
AND dp.victim_id = aj.victim_id
AND dp.id = aj.id
OPTION ( RECOMPILE );
/*Get each and every table of all databases*/
DECLARE @sysAssObjId AS TABLE (database_id bigint, partition_id bigint, schema_name varchar(255), table_name varchar(255));
INSERT into @sysAssObjId EXECUTE sp_MSforeachdb
N'USE [?];
SELECT DB_ID() as database_id, p.partition_id, s.name as schema_name, t.name as table_name
FROM sys.partitions p
LEFT JOIN sys.tables t ON t.object_id = p.object_id
LEFT JOIN sys.schemas s ON s.schema_id = t.schema_id
WHERE s.name is not NULL AND t.name is not NULL';
/*Begin checks based on parsed values*/
/*Check 1 is deadlocks by database*/
SET @d = CONVERT(VARCHAR(40), GETDATE(), 109);
RAISERROR('Check 1 %s', 0, 1, @d) WITH NOWAIT;
INSERT #deadlock_findings WITH (TABLOCKX)
( check_id, database_name, object_name, finding_group, finding )
SELECT 1 AS check_id,
DB_NAME(dp.database_id) AS database_name,
'-' AS object_name,
'Total database locks' AS finding_group,
'This database had '
+ CONVERT(NVARCHAR(20), COUNT_BIG(DISTINCT dp.event_date))
+ ' deadlocks.'
FROM #deadlock_process AS dp
WHERE 1 = 1
AND (DB_NAME(dp.database_id) = @DatabaseName OR @DatabaseName IS NULL)
AND (dp.event_date >= @StartDate OR @StartDate IS NULL)
AND (dp.event_date < @EndDate OR @EndDate IS NULL)
AND (dp.client_app = @AppName OR @AppName IS NULL)
AND (dp.host_name = @HostName OR @HostName IS NULL)
AND (dp.login_name = @LoginName OR @LoginName IS NULL)
GROUP BY DB_NAME(dp.database_id)
OPTION ( RECOMPILE );
/*Check 2 is deadlocks by object*/
SET @d = CONVERT(VARCHAR(40), GETDATE(), 109);
RAISERROR('Check 2 objects %s', 0, 1, @d) WITH NOWAIT;
INSERT #deadlock_findings WITH (TABLOCKX)
( check_id, database_name, object_name, finding_group, finding )
SELECT 2 AS check_id,
ISNULL(DB_NAME(dow.database_id), 'UNKNOWN') AS database_name,
ISNULL(dow.object_name, 'UNKNOWN') AS object_name,
'Total object deadlocks' AS finding_group,
'This object was involved in '
+ CONVERT(NVARCHAR(20), COUNT_BIG(DISTINCT dow.event_date))
+ ' deadlock(s).'
FROM #deadlock_owner_waiter AS dow
WHERE 1 = 1
AND (DB_NAME(dow.database_id) = @DatabaseName OR @DatabaseName IS NULL)
AND (dow.event_date >= @StartDate OR @StartDate IS NULL)
AND (dow.event_date < @EndDate OR @EndDate IS NULL)
AND (dow.object_name = @ObjectName OR @ObjectName IS NULL)
GROUP BY DB_NAME(dow.database_id), dow.object_name
OPTION ( RECOMPILE );
/*Check 2 continuation, number of locks per index*/
SET @d = CONVERT(VARCHAR(40), GETDATE(), 109);
RAISERROR('Check 2 indexes %s', 0, 1, @d) WITH NOWAIT;
INSERT #deadlock_findings WITH (TABLOCKX)
( check_id, database_name, object_name, finding_group, finding )
SELECT 2 AS check_id,
ISNULL(DB_NAME(dow.database_id), 'UNKNOWN') AS database_name,
dow.index_name AS index_name,
'Total index deadlocks' AS finding_group,
'This index was involved in '
+ CONVERT(NVARCHAR(20), COUNT_BIG(DISTINCT dow.event_date))
+ ' deadlock(s).'
FROM #deadlock_owner_waiter AS dow
WHERE 1 = 1
AND (DB_NAME(dow.database_id) = @DatabaseName OR @DatabaseName IS NULL)
AND (dow.event_date >= @StartDate OR @StartDate IS NULL)
AND (dow.event_date < @EndDate OR @EndDate IS NULL)
AND (dow.object_name = @ObjectName OR @ObjectName IS NULL)
AND dow.lock_type NOT IN (N'HEAP', N'RID')
AND dow.index_name is not null
GROUP BY DB_NAME(dow.database_id), dow.index_name
OPTION ( RECOMPILE );
/*Check 2 continuation, number of locks per heap*/
SET @d = CONVERT(VARCHAR(40), GETDATE(), 109);
RAISERROR('Check 2 heaps %s', 0, 1, @d) WITH NOWAIT;
INSERT #deadlock_findings WITH (TABLOCKX)
( check_id, database_name, object_name, finding_group, finding )
SELECT 2 AS check_id,
ISNULL(DB_NAME(dow.database_id), 'UNKNOWN') AS database_name,
dow.index_name AS index_name,
'Total heap deadlocks' AS finding_group,
'This heap was involved in '
+ CONVERT(NVARCHAR(20), COUNT_BIG(DISTINCT dow.event_date))
+ ' deadlock(s).'
FROM #deadlock_owner_waiter AS dow
WHERE 1 = 1
AND (DB_NAME(dow.database_id) = @DatabaseName OR @DatabaseName IS NULL)
AND (dow.event_date >= @StartDate OR @StartDate IS NULL)
AND (dow.event_date < @EndDate OR @EndDate IS NULL)
AND (dow.object_name = @ObjectName OR @ObjectName IS NULL)
AND dow.lock_type IN (N'HEAP', N'RID')
GROUP BY DB_NAME(dow.database_id), dow.index_name
OPTION ( RECOMPILE );
/*Check 3 looks for Serializable locking*/
SET @d = CONVERT(VARCHAR(40), GETDATE(), 109);
RAISERROR('Check 3 %s', 0, 1, @d) WITH NOWAIT;
INSERT #deadlock_findings WITH (TABLOCKX)
( check_id, database_name, object_name, finding_group, finding )
SELECT 3 AS check_id,
DB_NAME(dp.database_id) AS database_name,
'-' AS object_name,
'Serializable locking' AS finding_group,
'This database has had ' +
CONVERT(NVARCHAR(20), COUNT_BIG(*)) +
' instances of serializable deadlocks.'
AS finding
FROM #deadlock_process AS dp
WHERE dp.isolation_level LIKE 'serializable%'
AND (DB_NAME(dp.database_id) = @DatabaseName OR @DatabaseName IS NULL)
AND (dp.event_date >= @StartDate OR @StartDate IS NULL)
AND (dp.event_date < @EndDate OR @EndDate IS NULL)
AND (dp.client_app = @AppName OR @AppName IS NULL)
AND (dp.host_name = @HostName OR @HostName IS NULL)
AND (dp.login_name = @LoginName OR @LoginName IS NULL)
GROUP BY DB_NAME(dp.database_id)
OPTION ( RECOMPILE );
/*Check 4 looks for Repeatable Read locking*/
SET @d = CONVERT(VARCHAR(40), GETDATE(), 109);
RAISERROR('Check 4 %s', 0, 1, @d) WITH NOWAIT;
INSERT #deadlock_findings WITH (TABLOCKX)
( check_id, database_name, object_name, finding_group, finding )
SELECT 4 AS check_id,
DB_NAME(dp.database_id) AS database_name,
'-' AS object_name,
'Repeatable Read locking' AS finding_group,
'This database has had ' +
CONVERT(NVARCHAR(20), COUNT_BIG(*)) +
' instances of repeatable read deadlocks.'
AS finding
FROM #deadlock_process AS dp
WHERE dp.isolation_level LIKE 'repeatable read%'
AND (DB_NAME(dp.database_id) = @DatabaseName OR @DatabaseName IS NULL)
AND (dp.event_date >= @StartDate OR @StartDate IS NULL)
AND (dp.event_date < @EndDate OR @EndDate IS NULL)
AND (dp.client_app = @AppName OR @AppName IS NULL)
AND (dp.host_name = @HostName OR @HostName IS NULL)
AND (dp.login_name = @LoginName OR @LoginName IS NULL)
GROUP BY DB_NAME(dp.database_id)
OPTION ( RECOMPILE );
/*Check 5 breaks down app, host, and login information*/
SET @d = CONVERT(VARCHAR(40), GETDATE(), 109);
RAISERROR('Check 5 %s', 0, 1, @d) WITH NOWAIT;
INSERT #deadlock_findings WITH (TABLOCKX)
( check_id, database_name, object_name, finding_group, finding )
SELECT 5 AS check_id,
DB_NAME(dp.database_id) AS database_name,
'-' AS object_name,
'Login, App, and Host locking' AS finding_group,
'This database has had ' +
CONVERT(NVARCHAR(20), COUNT_BIG(DISTINCT dp.event_date)) +
' instances of deadlocks involving the login ' +
ISNULL(dp.login_name, 'UNKNOWN') +
' from the application ' +
ISNULL(dp.client_app, 'UNKNOWN') +
' on host ' +
ISNULL(dp.host_name, 'UNKNOWN')
AS finding
FROM #deadlock_process AS dp
WHERE 1 = 1
AND (DB_NAME(dp.database_id) = @DatabaseName OR @DatabaseName IS NULL)
AND (dp.event_date >= @StartDate OR @StartDate IS NULL)
AND (dp.event_date < @EndDate OR @EndDate IS NULL)
AND (dp.client_app = @AppName OR @AppName IS NULL)
AND (dp.host_name = @HostName OR @HostName IS NULL)
AND (dp.login_name = @LoginName OR @LoginName IS NULL)
GROUP BY DB_NAME(dp.database_id), dp.login_name, dp.client_app, dp.host_name
OPTION ( RECOMPILE );
/*Check 6 breaks down the types of locks (object, page, key, etc.)*/
SET @d = CONVERT(VARCHAR(40), GETDATE(), 109);
RAISERROR('Check 6 %s', 0, 1, @d) WITH NOWAIT;
WITH lock_types AS (
SELECT DB_NAME(dp.database_id) AS database_name,
dow.object_name,
SUBSTRING(dp.wait_resource, 1, CHARINDEX(':', dp.wait_resource) -1) AS lock,
CONVERT(NVARCHAR(20), COUNT_BIG(DISTINCT dp.id)) AS lock_count
FROM #deadlock_process AS dp
JOIN #deadlock_owner_waiter AS dow
ON dp.id = dow.owner_id
AND dp.event_date = dow.event_date
WHERE 1 = 1
AND (DB_NAME(dp.database_id) = @DatabaseName OR @DatabaseName IS NULL)