How to monitor blocking in SQL Server 2005 and in SQL Server 2000
| Article ID | : | 271509 |
| First Published | : |
8/14/2000 |
| Last Reviewed | : |
11/2/2007 |
| Revision | : | 14.1 |
| Modification Type | : | Minor |
| Language Locale | : | en-us |
| Article Status | : | Published |
| Confidentiality | : | Public |
MICROSOFT INTERNAL SUPPORT INFORMATION
IMPORTANT: The list(s) in this article were modified during migration to KMS. To see the original version of the list, please refer to the TextLegacy section at the bottom of this article.
SUMMARY
If you are using Microsoft SQL Server 2000, you must apply SQL Server 2000 Services Pack 3a (SP3a) before you use the script that is described in this article.
For more information about how to obtain SQL Server 2000 Service Pack 3a, click the following article number to view the article in the Microsoft Knowledge Base:
For more information about the Blocked Process Report event class, visit the following Microsoft Developer Network (MSDN) Web site:
For more information about how to obtain SQL Server 2000 Service Pack 3a, click the following article number to view the article in the Microsoft Knowledge Base:
290211 How to obtain the latest SQL Server 2000 service pack
This article is an update for SQL Server 2000 or later versions of SQL Server of the following Microsoft Knowledge Base article, which applies to Microsoft SQL Server 7.0:
251004 How to monitor SQL Server 7.0 blocking
This article documents the usage and design of a stored procedure that you can use to diagnose blocking and performance issues. For a description of how to understand and resolve blocking, see the following article in the Microsoft Knowledge Base:
224453 Understanding and resolving SQL Server 7.0 or 2000 blocking problems
In Microsoft SQL Server 2005, you can also use the Blocked Process Report event class in SQL Server Profiler to capture the information about a task that has been blocked for more than a specified amount of time. For more information about the Blocked Process Report event class, visit the following Microsoft Developer Network (MSDN) Web site:
MORE INFORMATION
The following description of the sp_blocker_pss80 stored procedure captures this information. This information also applies to SQL Server 2005.
The stored procedure was created with the following optimizations to reduce the effect on performance and blocking by running this stored procedure:
This stored procedure is useful by running it from any query tool. However, Microsoft suggests that you follow these steps to perform blocking analysis:
Following is the script to create the sp_blocker_pss80 stored procedure:
| • | The starting time (according to the computer that is running SQL Server) so that this sampling of blocking can be time-aligned with other performance information, such as a Microsoft Windows NT Performance Monitor log or a SQL Profiler log. |
| • | Information about connections to SQL Server, by querying the sysprocesses system table. |
| • | Information about lock resources, by querying the syslockinfo system table. |
| • | Information about resource waits, by running DBCC SQLPERF(WAITSTATS). |
| • | The current running SQL Server Batch for connections that are blocked by others or blocking others, by running the DBCC INPUTBUFFER statement. |
| • | The ending time, according to the computer that is running SQL Server. |
| • | There is no output generated unless at least one connection is waiting on a resource. |
| • | The sysprocesses and syslockinfo system tables from the master database are queried directly, to increase performance and to prevent this stored procedure from becoming blocked. Therefore, this stored procedure is specific to Microsoft SQL Server 2000 or later versions of SQL Server. |
| • | A small worktable is created by the cursor to obtain the DBCC INPUTBUFFER output; this should have no noticeable effect on the usage in the tempdb database. |
| • | Because the blocking can change while gathering the information, a fast mode exists, which increases performance by decreasing the results to relevant rows of the sysprocesses and syslockinfo system tables. |
| • | If trying to track non-lock resource waits, a latch mode exists, which causes the lock output to be omitted. |
MICROSOFT INTERNAL SUPPORT INFORMATION
This script does not report the sysprocesses column context_info , which you can use to isolate a blocking problem more.
| 1. | Create the stored procedure sp_blocker_pss80 , which is included at the end of this article, from any query tool while you are connected with a login that has sysadmin privileges on the SQL Server server or the instance of SQL Server you plan to monitor. | ||||
| 2. | Create a script file with the following query to run the stored procedure in a loop. Note that the delay should be between 5 and 60 seconds: WHILE 1=1 BEGIN EXEC master.dbo.sp_blocker_pss80 -- Or for fast mode -- EXEC master.dbo.sp_blocker_pss80 @fast=1 -- Or for latch mode -- EXEC master.dbo.sp_blocker_pss80 @latch=1 WAITFOR DELAY '00:00:15' END GO | ||||
| 3. | This output is very useful when combined with a Microsoft Windows NT Performance Monitor log and a SQL Profiler log, so creating both at the same time is suggested. For information concerning which Profiler and Performance Monitor events to capture, and for information about how to interpret the results, see the following article in the Microsoft Knowledge Base:
224453 Understanding and resolving SQL Server 7.0 or 2000 blocking problems | ||||
| 4. | Run the script file created in step 2 from either Isql.exe, the Osql.exe query tool, or the Sqlcmd utility in a Windows command prompt on the computer that is running SQL Server for which you intend to monitor to prevent networking problems from disconnecting the query tool. Following is an example command line that you can use to start Osql.exe, which assumes that the client is run from the computer that is running SQL Server, and that the script file name is Checkblk.sql. Make sure to correct the -S parameter, and replace "server" with the name of your SQL Server server (or "servername\instance" if you are monitoring a named instance) . Also correct the -i parameter, and replace "checkblk.sql" with the path and name to the script file created in step 2. osql -E -Sserver -icheckblk.sql -ocheckblk.out -w2000Note that you must use the other command line switches for the following reasons:
|
MICROSOFT INTERNAL SUPPORT INFORMATION
This code has been optimized because of poor performance in the original SQL Server 7.0 version of this script in the following ways:
| • | Performs only two table scans on the sysprocesses table and one table scan on the syslockinfo table. This change was made because of the fact that these fake system tables can be slow to query in high CPU utilization situations. | ||||
| • | The syslockinfo table is always queried directly for lock information. | ||||
| • | All locks held for clients involved in blocking are shown during fast mode execution because the self join on syslockinfo performed poorly when the number of locks increased to over about 100. | ||||
| • | The joins against the spt_values table were replaced with Case statements. Here are the queries to determine the values for those columns: -- Lock Type select number, name from spt_values where type = 'LR' -- Lock Mode select number, name from spt_values where type = 'L' -- Lock Status select number, name from spt_values where type = 'LS' | ||||
| • | When future modifications of this blocking script are considered, test the performance of the script while the following commands are run from a Command prompt:
|
MICROSOFT INTERNAL SUPPORT INFORMATION
Here is the version history for this script:
date author comment
2000-08-24 MikeZ Original version using 7.0 script as template but using table variables instead of temporary tables
2000-12-19 MikeZ Added distinct to insert #probclients select to correct duplicate key problem
2001-02-20 KeithElm Correct problems of creation when Quoted Identifiers enabled
2001-03-01 MikeZ Changes to allow filtering and import into table for quick analysis
2001-03-15 MikeZ Added DBCC OPENTRAN
Commented waittype check to remove DBCC INPUTBUFFER and PSS for spid not involved in blocking
2001-07-02 MikeZ Added ecid to temp table to correct duplicate key problem
2002-02-26 MikeZ Added DBCC SQLPERF(WAITSTATS)
Always report Endtime of stored procedure execution if waits exist
Changed date format to ODBC Canonical Format (121 from 113)
Added @latch parameter to omit syslockinfo output
2002-07-08 MikeZ Added ms datediffs to track slow sysprocesses and syslockinfo passes
Removed keyword and runtime from sysprocesses and syslockinfo
Added 'No blocking via locks' to output and removed syslockinfo pass when no blocking
2002-08-09 MikeZ Added filtering so that PSSDiag is not reported for DBCC INPUTBUFFER and DBCC PSS output
2003-01-09 MikeZ Removed DBCC TRACEON(3604) call due to sending DBCC PSS output to temporary table
Changed default to @fast = 1
Run DBCC PSS only if slow mode or running on SQL Server 2000 Service Pack 3 or later
Run DBCC PSS for all spids in blocking chain instead of just lead blocker
Run DBCC OPENTRAN when runnning versions before SQL Server 2000 Service Pack 3
Reduced sysprocesses columns if running on SQL Server 2000 Service Pack 3 or later
Report message of 'No Waittypes' instead of no output in that situation since DBCC TRACE output not shown
Report rowset of spids with waittypes collected in first sysprocesses pass in case changes occur later
Modified filtering so that PSSDiag is not seen in output unless it has non WAITFOR waittype
2003-04-11 MikeZ Changed DBCC PSS to be called less often due to exceptions
2003-11-24 MikeZ Previously created custom version ommitting DBCC PSS, DBCC INPUTBUFFER and DBCC SQLPERF(WAITTYPES) but never released
2003-11-24 MikeZ Removed call to DBCC PSS due to bug 470728
Removed sysprocesses row format version 8.1 (SP3+) and replaced with 8.2 with includes extra columns
Change to prevent null servername from affecting the import of sysprocesses output
Added message of 'Blocking via locks at' for findstr analysis
2003-12-02 MikeZ Created two versions of sp_blocker_pss80 in the code section (Pre-SQL Server 2000 SP3 and Post-SQL Server 2000 SP3 versions). Note Will cause errors but
correct version will be created
2004-02-26 MikeZ Fixed batch termination issue due to running DBCC OPENTRAN on inaccessable databases
2006-04-06 MikeZ Fixed repeated DBCC Inputbuffer calls for same spid. Set Language to English to prevent parsing errors with import script.
2006-10-10 MikeZ Changed reference to master.dbo.sysprocesses. Corrected case sensitivity errors on variables @status and @useraccess. use master
GO
if exists (select * from sysobjects where id = object_id('dbo.sp_blocker_pss80') and sysstat & 0xf = 4)
drop procedure dbo.sp_blocker_pss80
GO
create procedure dbo.sp_blocker_pss80 (@latch int = 0, @fast int = 1, @appname sysname='PSSDIAG')
as
--version 17SP3
if is_member('sysadmin')=0
begin
print 'Must be a member of the sysadmin group in order to run this procedure'
return
end
set nocount on
SET LANGUAGE 'us_english'
declare @spid varchar(6)
declare @blocked varchar(6)
declare @time datetime
declare @time2 datetime
declare @dbname nvarchar(128)
declare @status sql_variant
declare @useraccess sql_variant
set @time = getdate()
declare @probclients table(spid smallint, ecid smallint, blocked smallint, waittype binary(2), dbid smallint,
ignore_app tinyint, primary key (blocked, spid, ecid))
insert @probclients select spid, ecid, blocked, waittype, dbid,
case when convert(varchar(128),hostname) = @appname then 1 else 0 end
from master.dbo.sysprocesses where blocked!=0 or waittype != 0x0000
if exists (select spid from @probclients where ignore_app != 1 or waittype != 0x020B)
begin
set @time2 = getdate()
print ''
print '8.2 Start time: ' + convert(varchar(26), @time, 121) + ' ' + convert(varchar(12), datediff(ms,@time,@time2))
insert @probclients select distinct blocked, 0, 0, 0x0000, 0, 0 from @probclients
where blocked not in (select spid from @probclients) and blocked != 0
if (@fast = 1)
begin
print ''
print 'SYSPROCESSES ' + ISNULL (@@servername,'(null)') + ' ' + str(@@microsoftversion)
select spid, status, blocked, open_tran, waitresource, waittype,
waittime, cmd, lastwaittype, cpu, physical_io,
memusage, last_batch=convert(varchar(26), last_batch,121),
login_time=convert(varchar(26), login_time,121),net_address,
net_library, dbid, ecid, kpid, hostname, hostprocess,
loginame, program_name, nt_domain, nt_username, uid, sid,
sql_handle, stmt_start, stmt_end
from master.dbo.sysprocesses
where blocked!=0 or waittype != 0x0000
or spid in (select blocked from @probclients where blocked != 0)
or spid in (select spid from @probclients where blocked != 0)
print 'ESP ' + convert(varchar(12), datediff(ms,@time2,getdate()))
print ''
print 'SYSPROC FIRST PASS'
select spid, ecid, waittype from @probclients where waittype != 0x0000
if exists(select blocked from @probclients where blocked != 0)
begin
print 'Blocking via locks at ' + convert(varchar(26), @time, 121)
print ''
print 'SPIDs at the head of blocking chains'
select spid from @probclients
where blocked = 0 and spid in (select blocked from @probclients where spid != 0)
if @latch = 0
begin
print 'SYSLOCKINFO'
select @time2 = getdate()
select spid = convert (smallint, req_spid),
ecid = convert (smallint, req_ecid),
rsc_dbid As dbid,
rsc_objid As ObjId,
rsc_indid As IndId,
Type = case rsc_type when 1 then 'NUL'
when 2 then 'DB'
when 3 then 'FIL'
when 4 then 'IDX'
when 5 then 'TAB'
when 6 then 'PAG'
when 7 then 'KEY'
when 8 then 'EXT'
when 9 then 'RID'
when 10 then 'APP' end,
Resource = substring (rsc_text, 1, 16),
Mode = case req_mode + 1 when 1 then NULL
when 2 then 'Sch-S'
when 3 then 'Sch-M'
when 4 then 'S'
when 5 then 'U'
when 6 then 'X'
when 7 then 'IS'
when 8 then 'IU'
when 9 then 'IX'
when 10 then 'SIU'
when 11 then 'SIX'
when 12 then 'UIX'
when 13 then 'BU'
when 14 then 'RangeS-S'
when 15 then 'RangeS-U'
when 16 then 'RangeIn-Null'
when 17 then 'RangeIn-S'
when 18 then 'RangeIn-U'
when 19 then 'RangeIn-X'
when 20 then 'RangeX-S'
when 21 then 'RangeX-U'
when 22 then 'RangeX-X'end,
Status = case req_status when 1 then 'GRANT'
when 2 then 'CNVT'
when 3 then 'WAIT' end,
req_transactionID As TransID, req_transactionUOW As TransUOW
from master.dbo.syslockinfo s,
@probclients p
where p.spid = s.req_spid
print 'ESL ' + convert(varchar(12), datediff(ms,@time2,getdate()))
end -- latch not set
end
else
print 'No blocking via locks at ' + convert(varchar(26), @time, 121)
print ''
end -- fast set
else
begin -- Fast not set
print ''
print 'SYSPROCESSES ' + ISNULL (@@servername,'(null)') + ' ' + str(@@microsoftversion)
select spid, status, blocked, open_tran, waitresource, waittype,
waittime, cmd, lastwaittype, cpu, physical_io,
memusage, last_batch=convert(varchar(26), last_batch,121),
login_time=convert(varchar(26), login_time,121),net_address,
net_library, dbid, ecid, kpid, hostname, hostprocess,
loginame, program_name, nt_domain, nt_username, uid, sid,
sql_handle, stmt_start, stmt_end
from master.dbo.sysprocesses
print 'ESP ' + convert(varchar(12), datediff(ms,@time2,getdate()))
print ''
print 'SYSPROC FIRST PASS'
select spid, ecid, waittype from @probclients where waittype != 0x0000
if exists(select blocked from @probclients where blocked != 0)
begin
print 'Blocking via locks at ' + convert(varchar(26), @time, 121)
print ''
print 'SPIDs at the head of blocking chains'
select spid from @probclients
where blocked = 0 and spid in (select blocked from @probclients where spid != 0)
if @latch = 0
begin
print 'SYSLOCKINFO'
select @time2 = getdate()
select spid = convert (smallint, req_spid),
ecid = convert (smallint, req_ecid),
rsc_dbid As dbid,
rsc_objid As ObjId,
rsc_indid As IndId,
Type = case rsc_type when 1 then 'NUL'
when 2 then 'DB'
when 3 then 'FIL'
when 4 then 'IDX'
when 5 then 'TAB'
when 6 then 'PAG'
when 7 then 'KEY'
when 8 then 'EXT'
when 9 then 'RID'
when 10 then 'APP' end,
Resource = substring (rsc_text, 1, 16),
Mode = case req_mode + 1 when 1 then NULL
when 2 then 'Sch-S'
when 3 then 'Sch-M'
when 4 then 'S'
when 5 then 'U'
when 6 then 'X'
when 7 then 'IS'
when 8 then 'IU'
when 9 then 'IX'
when 10 then 'SIU'
when 11 then 'SIX'
when 12 then 'UIX'
when 13 then 'BU'
when 14 then 'RangeS-S'
when 15 then 'RangeS-U'
when 16 then 'RangeIn-Null'
when 17 then 'RangeIn-S'
when 18 then 'RangeIn-U'
when 19 then 'RangeIn-X'
when 20 then 'RangeX-S'
when 21 then 'RangeX-U'
when 22 then 'RangeX-X'end,
Status = case req_status when 1 then 'GRANT'
when 2 then 'CNVT'
when 3 then 'WAIT' end,
req_transactionID As TransID, req_transactionUOW As TransUOW
from master.dbo.syslockinfo
print 'ESL ' + convert(varchar(12), datediff(ms,@time2,getdate()))
end -- latch not set
end
else
print 'No blocking via locks at ' + convert(varchar(26), @time, 121)
print ''
end -- Fast not set
print 'DBCC SQLPERF(WAITSTATS)'
dbcc sqlperf(waitstats)
Print ''
Print '*********************************************************************'
Print 'Print out DBCC Input buffer for all blocked or blocking spids.'
Print '*********************************************************************'
declare ibuffer cursor fast_forward for
select distinct cast (spid as varchar(6)) as spid
from @probclients
where (spid <> @@spid) and
((blocked!=0 or (waittype != 0x0000 and ignore_app = 0))
or spid in (select blocked from @probclients where blocked != 0))
open ibuffer
fetch next from ibuffer into @spid
while (@@fetch_status != -1)
begin
print ''
print 'DBCC INPUTBUFFER FOR SPID ' + @spid
exec ('dbcc inputbuffer (' + @spid + ')')
fetch next from ibuffer into @spid
end
deallocate ibuffer
Print ''
Print '*******************************************************************************'
Print 'Print out DBCC OPENTRAN for active databases for all blocked or blocking spids.'
Print '*******************************************************************************'
declare ibuffer cursor fast_forward for
select distinct cast (dbid as varchar(6)) from @probclients
where dbid != 0
open ibuffer
fetch next from ibuffer into @spid
while (@@fetch_status != -1)
begin
print ''
set @dbname = db_name(@spid)
set @status = DATABASEPROPERTYEX(@dbname,'Status')
set @useraccess = DATABASEPROPERTYEX(@dbname,'UserAccess')
print 'DBCC OPENTRAN FOR DBID ' + @spid + ' ['+ @dbname + ']'
if @status = N'ONLINE' and @useraccess != N'SINGLE_USER'
dbcc opentran(@dbname)
else
print 'Skipped: Status=' + convert(nvarchar(128),@status)
+ ' UserAccess=' + convert(nvarchar(128),@useraccess)
print ''
if @spid = '2' select @blocked = 'Y'
fetch next from ibuffer into @spid
end
deallocate ibuffer
if @blocked != 'Y'
begin
print ''
print 'DBCC OPENTRAN FOR DBID 2 [tempdb]'
dbcc opentran ('tempdb')
end
print 'End time: ' + convert(varchar(26), getdate(), 121)
end -- All
else
print '8 No Waittypes: ' + convert(varchar(26), @time, 121) + ' '
+ convert(varchar(12), datediff(ms,@time,getdate())) + ' ' + ISNULL (@@servername,'(null)')
GO
create procedure dbo.sp_blocker_pss80 (@latch int = 0, @fast int = 1, @appname sysname='PSSDIAG')
as
--version 17
if is_member('sysadmin')=0
begin
print 'Must be a member of the sysadmin group in order to run this procedure'
return
end
set nocount on
declare @spid varchar(6)
declare @blocked varchar(6)
declare @time datetime
declare @time2 datetime
declare @dbname nvarchar(128)
declare @status sql_variant
declare @useraccess sql_variant
set @time = getdate()
declare @probclients table(spid smallint, ecid smallint, blocked smallint, waittype binary(2), dbid smallint,
ignore_app tinyint, primary key (blocked, spid, ecid))
insert @probclients select spid, ecid, blocked, waittype, dbid,
case when convert(varchar(128),hostname) = @appname then 1 else 0 end
from master.dbo.sysprocesses where blocked!=0 or waittype != 0x0000
if exists (select spid from @probclients where ignore_app != 1 or waittype != 0x020B)
begin
set @time2 = getdate()
print ''
print '8 Start time: ' + convert(varchar(26), @time, 121) + ' ' + convert(varchar(12), datediff(ms,@time,@time2))
insert @probclients select distinct blocked, 0, 0, 0x0000, 0, 0 from @probclients
where blocked not in (select spid from @probclients) and blocked != 0
if (@fast = 1)
begin
print ''
print 'SYSPROCESSES ' + ISNULL (@@servername,'(null)') + ' ' + str(@@microsoftversion)
select spid, status, blocked, open_tran, waitresource, waittype,
waittime, cmd, lastwaittype, cpu, physical_io,
memusage,last_batch=convert(varchar(26), last_batch,121),
login_time=convert(varchar(26), login_time,121), net_address,
net_library, dbid, ecid, kpid, hostname, hostprocess,
loginame, program_name, nt_domain, nt_username, uid, sid
from master.dbo.sysprocesses
where blocked!=0 or waittype != 0x0000
or spid in (select blocked from @probclients where blocked != 0)
or spid in (select spid from @probclients where waittype != 0x0000)
print 'ESP ' + convert(varchar(12), datediff(ms,@time2,getdate()))
print ''
print 'SYSPROC FIRST PASS'
select spid, ecid, waittype from @probclients where waittype != 0x0000
if exists(select blocked from @probclients where blocked != 0)
begin
print 'Blocking via locks at ' + convert(varchar(26), @time, 121)
print ''
print 'SPIDs at the head of blocking chains'
select spid from @probclients
where blocked = 0 and spid in (select blocked from @probclients where spid != 0)
if @latch = 0
begin
print 'SYSLOCKINFO'
select @time2 = getdate()
select spid = convert (smallint, req_spid),
ecid = convert (smallint, req_ecid),
rsc_dbid As dbid,
rsc_objid As ObjId,
rsc_indid As IndId,
Type = case rsc_type when 1 then 'NUL'
when 2 then 'DB'
when 3 then 'FIL'
when 4 then 'IDX'
when 5 then 'TAB'
when 6 then 'PAG'
when 7 then 'KEY'
when 8 then 'EXT'
when 9 then 'RID'
when 10 then 'APP' end,
Resource = substring (rsc_text, 1, 16),
Mode = case req_mode + 1 when 1 then NULL
when 2 then 'Sch-S'
when 3 then 'Sch-M'
when 4 then 'S'
when 5 then 'U'
when 6 then 'X'
when 7 then 'IS'
when 8 then 'IU'
when 9 then 'IX'
when 10 then 'SIU'
when 11 then 'SIX'
when 12 then 'UIX'
when 13 then 'BU'
when 14 then 'RangeS-S'
when 15 then 'RangeS-U'
when 16 then 'RangeIn-Null'
when 17 then 'RangeIn-S'
when 18 then 'RangeIn-U'
when 19 then 'RangeIn-X'
when 20 then 'RangeX-S'
when 21 then 'RangeX-U'
when 22 then 'RangeX-X'end,
Status = case req_status when 1 then 'GRANT'
when 2 then 'CNVT'
when 3 then 'WAIT' end,
req_transactionID As TransID, req_transactionUOW As TransUOW
from master.dbo.syslockinfo s,
@probclients p
where p.spid = s.req_spid
print 'ESL ' + convert(varchar(12), datediff(ms,@time2,getdate()))
end -- latch not set
end
else
print 'No blocking via locks at ' + convert(varchar(26), @time, 121)
print ''
end -- fast set
else
begin -- Fast not set
print ''
print 'SYSPROCESSES ' + ISNULL (@@servername,'(null)') + ' ' + str(@@microsoftversion)
select spid, status, blocked, open_tran, waitresource, waittype,
waittime, cmd, lastwaittype, cpu, physical_io,
memusage,last_batch=convert(varchar(26), last_batch,121),
login_time=convert(varchar(26), login_time,121), net_address,
net_library, dbid, ecid, kpid, hostname, hostprocess,
loginame, program_name, nt_domain, nt_username, uid, sid
from master.dbo.sysprocesses
print 'ESP ' + convert(varchar(12), datediff(ms,@time2,getdate()))
print ''
print 'SYSPROC FIRST PASS'
select spid, ecid, waittype from @probclients where waittype != 0x0000
if exists(select blocked from @probclients where blocked != 0)
begin
print 'Blocking via locks at ' + convert(varchar(26), @time, 121)
print ''
print 'SPIDs at the head of blocking chains'
select spid from @probclients
where blocked = 0 and spid in (select blocked from @probclients where spid != 0)
if @latch = 0
begin
print 'SYSLOCKINFO'
select @time2 = getdate()
select spid = convert (smallint, req_spid),
ecid = convert (smallint, req_ecid),
rsc_dbid As dbid,
rsc_objid As ObjId,
rsc_indid As IndId,
Type = case rsc_type when 1 then 'NUL'
when 2 then 'DB'
when 3 then 'FIL'
when 4 then 'IDX'
when 5 then 'TAB'
when 6 then 'PAG'
when 7 then 'KEY'
when 8 then 'EXT'
when 9 then 'RID'
when 10 then 'APP' end,
Resource = substring (rsc_text, 1, 16),
Mode = case req_mode + 1 when 1 then NULL
when 2 then 'Sch-S'
when 3 then 'Sch-M'
when 4 then 'S'
when 5 then 'U'
when 6 then 'X'
when 7 then 'IS'
when 8 then 'IU'
when 9 then 'IX'
when 10 then 'SIU'
when 11 then 'SIX'
when 12 then 'UIX'
when 13 then 'BU'
when 14 then 'RangeS-S'
when 15 then 'RangeS-U'
when 16 then 'RangeIn-Null'
when 17 then 'RangeIn-S'
when 18 then 'RangeIn-U'
when 19 then 'RangeIn-X'
when 20 then 'RangeX-S'
when 21 then 'RangeX-U'
when 22 then 'RangeX-X'end,
Status = case req_status when 1 then 'GRANT'
when 2 then 'CNVT'
when 3 then 'WAIT' end,
req_transactionID As TransID, req_transactionUOW As TransUOW
from master.dbo.syslockinfo
print 'ESL ' + convert(varchar(12), datediff(ms,@time2,getdate()))
end -- latch not set
end
else
print 'No blocking via locks at ' + convert(varchar(26), @time, 121)
print ''
end -- Fast not set
print 'DBCC SQLPERF(WAITSTATS)'
dbcc sqlperf(waitstats)
Print ''
Print '*********************************************************************'
Print 'Print out DBCC Input buffer for all blocked or blocking spids.'
Print '*********************************************************************'
declare ibuffer cursor fast_forward for
select distinct cast (spid as varchar(6)) as spid
from @probclients
where (spid <> @@spid) and
((blocked!=0 or (waittype != 0x0000 and ignore_app = 0))
or spid in (select blocked from @probclients where blocked != 0))
open ibuffer
fetch next from ibuffer into @spid
while (@@fetch_status != -1)
begin
print ''
print 'DBCC INPUTBUFFER FOR SPID ' + @spid
exec ('dbcc inputbuffer (' + @spid + ')')
fetch next from ibuffer into @spid
end
deallocate ibuffer
Print ''
Print '*******************************************************************************'
Print 'Print out DBCC OPENTRAN for active databases for all blocked or blocking spids.'
Print '*******************************************************************************'
declare ibuffer cursor fast_forward for
select distinct cast (dbid as varchar(6)) from @probclients
where dbid != 0
open ibuffer
fetch next from ibuffer into @spid
while (@@fetch_status != -1)
begin
print ''
set @dbname = db_name(@spid)
set @status = DATABASEPROPERTYEX(@dbname,'Status')
set @useraccess = DATABASEPROPERTYEX(@dbname,'UserAccess')
print 'DBCC OPENTRAN FOR DBID ' + @spid + ' ['+ @dbname + ']'
if @status = N'ONLINE' and @useraccess != N'SINGLE_USER'
dbcc opentran(@dbname)
else
print 'Skipped: Status=' + convert(nvarchar(128),@status)
+ ' UserAccess=' + convert(nvarchar(128),@useraccess)
print ''
if @spid = '2' select @blocked = 'Y'
fetch next from ibuffer into @spid
end
deallocate ibuffer
if @blocked != 'Y'
begin
print ''
print 'DBCC OPENTRAN FOR DBID 2 [tempdb]'
dbcc opentran ('tempdb')
end
print 'End time: ' + convert(varchar(26), getdate(), 121)
end -- All
else
print '8 No Waittypes: ' + convert(varchar(26), @time, 121) + ' '
+ convert(varchar(12), datediff(ms,@time,getdate())) + ' ' + ISNULL (@@servername,'(null)')
GO The information in this article applies to:
| • | Microsoft SQL Server 2005 Standard Edition |
| • | Microsoft SQL Server 2005 Workgroup |
| • | Microsoft SQL Server 2005 Developer Edition |
| • | Microsoft SQL Server 2005 Enterprise Edition |
| • | Microsoft SQL Server 2000 Personal Edition |
| • | Microsoft SQL Server 2000 Standard Edition |
| • | Microsoft SQL Server 2000 Workgroup Edition |
| • | Microsoft SQL Server 2000 Developer Edition |
| • | Microsoft SQL Server 2000 Enterprise Edition |