SQL Server Deadlock On Resources??

May 30, 2007

We've got a 3rd party application that periodically runs SQL commands throughout the day. We've been getting issues with this application showing a sql error:

Transaction (Process ID 71) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.

In checking the processes on SQL Server, there were a lot, and process ID 71 was actually hitting a completely different database.

Is there a way to streamline how SQL Server handles processes, and what's the limit at any given time?

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Deadlock - Which Resources Are Really Deadlocked?

Apr 10, 2000

The errormessage after a deadlock gives very little information: "Your transaction (process ID #12) was deadlocked with another process and has been chosen as the deadlock victim. Rerun your transaction."

But what resources, ie tables, indexes etc, are really deadlocked?

Is it possible to set a switch or something to log all relevant information about a deadlock for later investigation?

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Transaction (Process ID 135) Was Deadlocked On Lock Resources With Another Process And Has Been Chosen As The Deadlock Victim.

Nov 14, 2007



Hi,

I was trying to extract data from the source server using OLEDB Source and SQL Server Destination when i encountered this error:

"Transaction (Process ID 135) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.".

What must be done so that even if the table being queried is locked, i wouldn't experience any deadlock?

cherriesh

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Is there a way to send out an email woth deadlock information (victim query, winner query, process id's and resources on which the deadlock occurred) as soon as a deadlock occurs in a database or at instance level?I currently has trace flag 1222 turned on. And also created an alert that send me an email whenever a deadlock occurs. but it just says that a deadlock occurred and I log into sql server error log and review the information.

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Hi.
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Below is the brief of my setup
1.I have two Active directory domain controllers running Windows 2003 R2 Standard edition with SP2.
2.i have installed a Windows 2003 Two Node Active Passive Cluster as NODE1 and NODE2.
3.The Domain account used to install WIndows 2003 A/P Cluster is Clusteradmin.This account is the member of Administartors on the Domain as well as the Local Admin on NODE1 and NODE2.
4.SQL 2005 with SP2 is installed on both the Nodes as SQL 2005 Failover Cluster.The account used to install SQL 2005 is sqadmin.This account is the member of Administartors on the domain and the member of Local Admins on NODE1 and NODE2.
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6.Each of these servcie has a seperate service account created for them.All these service accounts areb the members of domain admin and the member of Local Admin on NODE1 and NODE2.
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Plz Advice.
Regards
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Jun 27, 2007

Hi, i am getting this error when i am running a stored procedure.



Transaction (Process ID XXXX) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.



i think so it is getting this error becasue it blocking it self at one point in the SP



DECLARE cty_Cursor CURSOR FOR
SELECT Country FROM TB_Country



declare @cty varchar(2)


OPEN cty_Cursor;
FETCH NEXT FROM cty_Cursor into @cty;
WHILE @@FETCH_STATUS = 0
BEGIN
EXEC SP_DO_SOMETHING @cty
FETCH NEXT FROM cty_Cursor into @cty;
END;
CLOSE cty_Cursor;
DEALLOCATE cty_Cursor;





i think so it calls the SP then before SP finsih its working it calls it back from cursor with other argument.



how we can make it sure it finish it execution before it is being called again. i think so we need some sort of lock here but i am not able to find right solution . please anyone suggest something.



Regards,

Haroon

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The following question applies to SQL Server 8.0.2187 (2000 + SP4+916287/914384/898709/915065/915340):

We have now twice had an incident where the same SQL Server has stopped responding. The only workaround is to restart the SQL Service. After this occurs, the log is filled with the following messages:

2007-09-10 16:42:14.29 spid3 Process ID 197:320 owns resources that are blocking processes on Scheduler 1.

2007-09-10 16:42:14.31 spid3 Process ID 74:324 owns resources that are blocking processes on Scheduler 5.


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Aug 12, 2009

How to restrict resources usage based on individual Databases in resource governor?

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I created 2 pools as pool_login, pool_DBNAME, and 2 workload groups as GroupLogin,GroupDBNAME, and also the classifier function.After setup above, I use following statement to check what sessions are in each group .

Even if there are spids which are accessing database DBNAME, I can’t see that they fall into the group GroupDBNAME and pool pool_DBNAME.

SELECT s.group_id, CAST(g.name as nvarchar(20)), s.session_id, s.login_time, CAST(s.host_name as nvarchar(20)), CAST(s.program_name AS nvarchar(20))
FROM sys.dm_exec_sessions s
INNER JOIN sys.dm_resource_governor_workload_groups g
ON g.group_id = s.group_id
ORDER BY g.name
GO

Following is the code to create pool, group,classifier function:

USE master
GO;
-- Create a resource pool pool_login.
CREATE RESOURCE POOL pool_login
WITH

[Code] ....

-- Create a workload group to use this pool.

CREATE WORKLOAD GROUP GroupLogin
USING pool_login;
GO
CREATE WORKLOAD GROUP GroupDBNAME
USING pool_DBNAME;

[code]....

-- Register the classifier function with Resource Governor.

ALTER RESOURCE GOVERNOR WITH (CLASSIFIER_FUNCTION= dbo.rgclassifier_v1);
GO

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I have some ASP.NET C# code which executes a stored procedure in SQL Server via the SqlCommand and SqlConnection classes.
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lock (synclock) {
// execute SQL stored procedure
...
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I'm investigating my production server because there appears a deadlock every day. So, in SQL Profiler, I use the the Deadlock graph to capture the trace in a file.

When I click on the textdata to see the graph an error appears:
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Cannot find process victim in process list.

I also get the following error from another deadlock:
- Failed to initialize deadlock control.
Object reference not set to an instance of an object.

I stopped my trace, so this can not be the problem.

Does anybody knows why I can't see the graph?


I also captured the trace in a table and then used the following query to see it in xml:
select convert(xml,textdata)
from TableName

This works fine.

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HI,

I have a framewrok that runs tests and keeps updating the status of the tests to the DB. They are approx 20 tests whose status will be updated simultaneously. Recently i have seen the follwoing error


{"Transaction (Process ID 84) was deadlocked on lock | communication buffer resources with another process and has been chosen as the deadlock victim. Rerun the transaction."}

I am using SQL server 2005. Any suggestions?

Thank you



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Thanks & Regards,
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Below query. its getting more time to exec and got deadlock. So, query to avoid deadlock.

SELECT m1.Value AS InterfaceName, m1.MessageDateTime, m2.GroupId, COUNT(mError.Id) AS ErrorCount
FROM (
SELECT m1.Value, MAX(m1.MessageDateTime) as MessageDateTime FROM Message m1
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[Code] ....

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Hi there,

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As we have a maintenance job running at 03:30 it feels like this is the problem. The job performs the following tasks: "Check Database Integrity -> Rebuild Index -> Reorganize Index"

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Also when i look in the error log i can see that the Maintenance job is started but never ended. Worth to notice is that I get the follwoing info in the log after the start-message:

Configuration option 'user options' changed from 0 to 0. Run the RECONFIGURE statement to install.

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Thanks
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Jul 5, 2001

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I use this code whenever somebody whines that "The server is slow!".

The magic is ::fn_get_sql which came with service pack 3 for sql 2000.





use master
IF (object_id('sp_Now')) is not null
BEGIN
PRINT 'Dropping: sp_Now'
DROP PROCEDURE sp_Now
END
PRINT 'Creating: sp_Now'
GO
CREATE PROCEDURE sp_Now
as
-- FULL DETAILS OF WHAT IS RUNNING
set nocount on
declare @handle binary(20),
@spid smallint,
@rowcnt smallint,
@output varchar(500)

DECLARE TEST CURSOR FOR
select sql_handle, spid
from sysprocesses
where sql_handle <> 0x0000000000000000000000000000000000000000
-- and spid <> @@SPID --> Uncomment to stop seeing your own process
order by cpu desc

OPEN TEST
FETCH NEXT FROM TEST
INTO @handle,
@spid


set @rowcnt = @@CURSOR_ROWS

print '===================='
print '= CURRENT ACTIVITY ='
print '===================='
print ' '
set @output = 'ACTIVE SPIDS: ' + convert(varchar(4),@rowcnt)
print @output


WHILE @@FETCH_STATUS = 0
BEGIN
print ' '
print ' '
print 'O' + replicate('x',120) + 'O'
print 'O' + replicate('x',120) + 'O'
print ' '
print ' '
print ' '



select convert(char(15), loginame) as 'loginame',
convert(char(10),hostname) as 'hostname',
convert(char(20),db_name(dbid)) 'database',
str(spid,4,0) 'spid',
str(blocked,5,0) 'block',
-- str(waittime,9,0) 'wait_time',
str(physical_io,8,0) 'phys_io',
-- str((cpu),10,0) 'cpu(ms)',
-- str((cpu/60000.0),9,3) 'cpu(mins)',
str((cpu/1000/60),6) + ':' + case when left((str(((cpu/1000) % 60),2)),1) = ' ' then stuff(str(((cpu/1000) % 60),2),1,1,'0') else str(((cpu/1000) % 60),2) END as 'cpu(mm:ss)',
str((convert(float,memusage) * 8192.0 / 1024.0 / 1024.0),8,2) 'mem(MB)',
convert(char(30),program_name) as 'program_name',
cmd,
convert(char(15),lastwaittype) 'lastwaittype',
convert(char(20),login_time,120) 'login_time',
convert(char(19),last_batch,120) 'last_batch',
convert(char(10),status) as 'status',
convert(char(15),nt_username) as 'nt_username'
from master..sysprocesses
where spid = @spid
print ' '
print ' '
dbcc inputbuffer(@spid)
print ' '
print ' '
select * from ::fn_get_sql(@handle)
FETCH NEXT FROM TEST
INTO @handle,
@spid
END
close TEST
deallocate TEST
GO
IF (object_id('sp_Now')) is not null
PRINT 'Procedure created.'
ELSE
PRINT 'Procedure NOT created.'
GO

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Jul 31, 2006

Hi,
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