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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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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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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Nov 10, 2015
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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Jan 16, 2006
I am new to SQL Server 2005 Express, where can I find some tutorials on developing web applications with this product?
Thanks!
Mike
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Aug 17, 2007
Hi.
I have installed an SQL 2005 Failover Cluster on a Two Node Active Passive Windows 2003 Cluster.If i am trying to failover from the Active node to the passive Node,The Sql Server,Sql Server Agent and SQL Analysis resources fail,However if i reset the passowrd in the services tab of the above three services on the pasive node,the resources come online.
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.
5.SLQ 2005 has four domain groups for 4 SQL Services.The Services are SQL Server,SQL Server Agent,SLQ Anaylisis Server and Full text Search.
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.
7.Each of these servcies is running under these servcie accounts in the Servcies tab in NODE1 and NODE2.
8.If i fail the resources from NODE1 to NODE2 ,The SQL Server,SQL Server Agent and SQL Anaylisis resources are failing.on going to the service tab of NODE 2 I reset the password for these services,the services come online.
10.The Cluster resources and MSDTC Resources are Failing over successfully.They are coming online successfully.
11,I have a problem with the SQL Server Resources,even if i failback to NODE1 from NODE2,the same resources are failing again.
Plz Advice.
Regards
Khalid
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Jul 16, 2007
Could some body suggest some good books and online resources for:
1. T-SQL Intermediate level/Advanced
2. SQL Server 2005
Thanks a bunch
Csharplearner
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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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Oct 27, 2005
my freind asked me to look for him for online book or something very good that teach SQL for SQL server 2000 ... what i need is something like hands on examples that will take user from level 1 to level * .... i have seen alot of stuff in google but i think some of you might know what i need and can direct me to better resources as i could not find someting specail !!!
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Mar 30, 2007
We've set up a report farm with two servers, both 64 bit with 4 CPUs each. One has 16Gig and the other 8Gig of memory. We're using Windows NLB and the load test software confirms that the NLB is working. When we run a number of concurrent reports, both servers get utilized, but they only work on a few at a time. The report server queue doesn't seem to be fully utilizing the hardware. From a prior post I've learned that the report server queue automatically runs 4 reports per CPU. This is not occuring for our setup. Has anyone else experienced the same? Are there any configurations that need to be set to open the queue up? The reports are heavy (300,000 records grouped and summed). Does this affect the queuing process?
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Jun 25, 2015
I have about 50 databases that are only accessed once a month and on a predictable schedule. Would it free up resources on the server if they were kept offline and brought online only when needed ?
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Jul 20, 2005
SServer PC: Win SBS 2003 with 2.6 GHz processor and 1GB RAMSQL Server 2000 v 2000.8.00.76 (sp3)MS Office 2k3MSJet ms04-014 (latest ost sp8)MDAC v2.8 RTMADO 2.1vb6.exe / ADO 2.0I think this is a SQL Server/ADO problem as I have 2 applications withsame problem.My access database uses a timer based function to insert records intoSQL Server using ADO and stored procedures. Access also uses DAO ,Jet/ odbc to linked tables on SQL Server for many other tasks/forms.All is well when Access 1st run but after a few hours or so the Accessapp grinds to a halt.Upon checking the task manager the mem usuage upto 160MB and handlecount upto 86,000 ! (cpu process % is low).After the "Access Fail" if I stop/start access only, performance isnot returned, I have to stop/start SQL Server.It would seem that allconnections from this PC to SQL server are badly affected, it is nottied to the client application that had the problem.As I could not work out where the problem was I took the Accessfunctionality into a VB6 app, using ADO 2.0, thinking this shouldsimplify matters with Jet and ODBC out of the way.I now have the same problem with the number of handles increasing withevery new timer based function.* code snippet example *If Not OpenConnection Then 'we have not been able to open aconnection to SQL serverCall procLog("Connection failed to SQL server")Exit FunctionEnd If'gVar.cnnSQL is my public ADODB.ConnectionSet cmdSQL = New ADODB.CommandWith cmdSQL.ActiveConnection = gVar.cnnSQL.CommandText = "MyDB.dbo.insert_tblMyData".CommandType = adCmdStoredProc.Execute RecordsAffected:=lngRecs, _Parameters:=Array(lngID, dtDate,intCategory,strNationality,strNotes,strName)End With* code snippet *** After the "Access Fail" if I look at one of my clients, running thesame Access app on another PC, it seems normally responsive when usingone my bound forms to browse the data from same SQL Server **Any ideas anyone ?
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Sep 11, 2007
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.
We haven't been able to pinpoint a cause or reporduce the problem on a dev server. I've seen several posts about this issue online but not many answers. Does anyone have any advice on how to troubleshoot this issue?
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Aug 12, 2009
How to restrict resources usage based on individual Databases in resource governor?
We have many databases in one instance; I would like to restrict resource usage to each database respectively.
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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Feb 14, 2008
Hi Guys.
I just want to ask some insights on SQL Server Deadlock and what is the best way to handle deadlock in asp.net?
Or something like a Try... Catch.. statement to handle the error?
Please advice. Thanks in advance.
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Mar 27, 2007
I have some ASP.NET C# code which executes a stored procedure in SQL Server via the SqlCommand and SqlConnection classes.
One of the stored procedures that gets executed is giving the error: "Transaction (Process ID 272) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction." This only happens occassionally.
Is there a way to get around this in my ASP.Net application? One thing I tried is ensuring that no 2 users entered the stored procedure concurrently:object synclock = new object() ;
lock (synclock) {
// execute SQL stored procedure
...
} This did not solve the problem, and I'm not even sure if that is the correct implementation to ensure sequential execution of the stored procedure.
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Aug 10, 2007
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:
- Failed to initialize deadlock control.
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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Mar 3, 2007
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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Jan 24, 2008
Hi Guys,
I have one situation. I need to find out the processes which are all in deadlock state. I my figure out that SQL server maintains the process details in sysprocesses table.
Can any one please help me, Whether this is the table which contains deadlock details. If not where are they stored and How to kill that process ?
Thanks & Regards,
Senthil
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Oct 3, 2015
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
WHERE m1.TypeId = 9 AND (m1.Value LIKE 'F02' )
GROUP BY m1.Value
[Code] ....
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Jul 23, 2005
I want to set an alert for a specific table whenever an event hascaused a deadlock to occur on the table.I understand how to set up an alert. But I don't know which errornumber to use for the New Alert error number property for a deadlock.Or how to specify a deadlock on a specific table.Thanks,DW
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Oct 3, 2007
Hi there,
We have lately experianced a strange problem with our SQL Server 2005 x64 (SP2) that is NOT consistent but when it happens it happens on the same time.
Almost every night at 03:30 one of our databases (not all) seems to be down or locked. When i have a look at the order table in this database I can see that we have stopped recieving orders after 03:30. Two hours later (05:30) I can see the following error each minute in the error log until we reboot the server:
All schedulers on Node 0 appear deadlocked due to a large number of worker threads waiting on LCK_M_IS. Process Utilization 0%%.
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"
When i look at the history of the job it looks like it's not completed and only the "Check Database Integrity" task was runned. No error message here either.
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.
Also, when i run this job manually daytime it works great!
Anyone having any idees on this? Is it possible to track this even more? I'm tired of restarting the server 03:30 in the morning =)
Thanks
Jon
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Jun 11, 2015
Dead lock is coming in select query in application because of index. It is identified after enabling trace in database and identified by reading deadlock xml file. After index removal, deadlock is not coming in same query. But it is affecting query's performance slightly. Is it correct way to remove index if dead lock is coming because of index?
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Oct 14, 2007
There are a series of traces of transactions for essentially the same units of work. Each includes a retrieving the same table "Select" from the database. The first 4 transactions ran concurrently. The last one ran about 7 minutes later with no other concurrent transactions.
The elapsed times for the database accesses for each of the first 4 is significantly higher than the last one.
Can you think of any database optimazation that might improve this?
Are there any utilities available than can be used for stand-alone testing of SQL Server database performance?
E.G. they would measure response time for reading/writing large/small amounts of canned data once/multiple times with concurrent/nonconcurrent access.
SQL Server Database is on 2000.I am not sure about the ISOLATION level in the Java code.
Basically I am new to SQL Sever....Please ans the above questions and provide me the direction to proceed on these questions
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Mar 9, 2015
I am getting following deadlock message. What is happening in below deadlock?? Also what can I do to get rid of this deadlock?
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Aug 31, 2015
We have around 5 SP’s which are inserting data into Table A,and these will run in parallel.From the temp tables in the SP,data will be loaded to Table A. We are getting deadlock here.No Begin and End Transaction used in the stored procedure.
What could be done to avoid deadlock.
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Nov 10, 2003
I used SqlConnection/SqlDataReader to read data from SQL Server 2000 in my ASP.NET project, but I found that the CPU usage is too high, and I used SQL Query Analyzer to run the same SQL statement, The CPU usage is the half of the previous, is there anyone can tell me why? Thank you!
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May 8, 2006
Hi everyone!Being new the SQL, I wanted to ask everyone if there are good resources out there that they use? I could use all the help I can get! Books, links, websites, etc.Recently my friend sent me this, I found it informative and best of all, free! https://store.pentontech.com/index.cfm?s=9&promocode=qe2165f7
Thanks in advance for your help!- Lizzy
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Jul 5, 2001
Sometimes logging in to SQL 7 I get 'Memory resources not available...' and
log in process terminates. Do I need to up number of locks !
If so, how ! Pls. suggest any other ideas !
I have 2g ram, 4 CPUs NT 4 SP5
Thanks,
Rick
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May 5, 2006
This proc will show you what is using SQL system resources right now. If a process is not currently using any resources, it will not show up on the list. Also, a dump of the input buffer is printed so you can see just what is going on.
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,
Im just looking for someone that has a demonstration Visual Basic database script.
Something that makes a database, ad / removes rows and information, does all basic database stuff, just as an example of how a SQL database is supposed to be handled.
Anyone have any links?
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Jul 23, 2005
I know that a query inside a called UDF does not show up when displaying theestimated query plan, but are the resources (CPU, DiskIO) used by a UDF thatis call from within an SProc or embedded in a SQL statement included insp_who2 and Profiler BatchCompleted?Also how performance draining is it to do something like the following. Iassume for every row returned the udf will be called causing 8000 tablescans on DateTable?Create Functionu udf_GetCountDates (@StartDate datetime, @EndDate datetime)Returns IntbeginReturn(select count(*) from DateTablewhere ColDate > @TestDate and Col1Date <)end--DateTable has 5,000 rowsCreate proc Test@TestDate datetimeAsselect Col1, Col2, udf_GetCountDates(@TestDate, Col2)From OTable--OTable has 8,000 rowsGoThanks,Ray
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Jul 20, 2005
I have a question...say I have an asp app that works as a front end toan sql server 2000 database. Would it be better, performance wise, toseperate the webserver from the sqlserver or to have them on the samemachine?-Jim
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