When I execute a select with an inner join my query is bombing out calling me a deadlock victim. I know what deadlocking is, but I am only doing a select.
Why would a select lock records?
Could anyone explain what locking occurs when a select is fired with a join?
Thanks
Hi,
I got the following error when I try running my “comments.aspx� page with visual studio 2005Exception Details: System.Data.SqlClient.SqlException: Transaction (Process ID 83) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
fExecuteQuery(String commandText, String dataSetName) +90 fExecuteQuerySet(String commandText, String dataSetName) +36 ASP.comments_aspx.GetNarComment() +618 ASP.comments_aspx.Page_Load(Object sender, EventArgs e) +476 System.Web.UI.Control.OnLoad(EventArgs e) +67 System.Web.UI.BasePage.OnLoad(EventArgs e) +1013 System.Web.UI.PopupPage.OnLoad(EventArgs e) +4 System.Web.UI.Control.LoadRecursive() +35
System.Web.UI.Page.ProcessRequestMain() +750
The segment code was the problem sits in file "comments.aspx"::
…
string cmdText=��;
cmdText = string.Format(@"-- Get All Narative comments fo all students in the course from @selectedTermID down to its child terms
exec aagGetStudentSectionComments @companyID={0}, @sectionID={1}, @selectedTermID={2}, @StudentID={3}
", _companyID, sectionID, selectedTermID, studentID);
ds = fExecuteQuerySet(cmdText, "getMySet");
…
// the 2 functions to deal with ADO.NET to be called in above code segment
// return a dataset.
public DataSet fExecuteQuery(string commandText, string dataSetName)
{
DataSet mds = new DataSet();
SqlDataAdapter da = new SqlDataAdapter(commandText, _cn);
da.SelectCommand.CommandTimeout = 600; // 600 seconds
da.Fill(mds, dataSetName);
return mds; // return dataset
}
// Assume para commandText contains sql query which returns a table or more.
// return a DataSet.
public DataSet fExecuteQuerySet(string commandText, string dataSetName)
{
DataSet mds = new DataSet();
mds = fExecuteQuery(commandText, dataSetName);
return mds; // return DataSet
}
Please give me the reason why that dealock happens?Thanks in advance
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?
ive seen this Deadlock Error message out on the internet being discussed, but no solution being offered.
i have a windows service that's running Select Statements [one at a time] - so unless there's some command in sql server that would re-run these - it could be a problem for me.
now if im running this select proc manually - of course i see the message and re-run the process, but how can this be accomplished programatically.
see msg below:
Transaction (Process ID 106) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
thanks for any help on this
rik
Hi, i get this error while i manually execute dts. But when i execute dts on my .aspx page, i can't handle this error on "... catch(Exception ex) {... }" part. catch (Exception ex) {
return ex.Message ; //DtsPackage.OnError += new PackageEvents_OnErrorEventHandler(DtsPackage_OnError);
} Here is dts message in a text file. Step 'DTSStep_DTSDataPumpTask_3' failedStep Error Source: Microsoft OLE DB Provider for SQL ServerStep Error Description:Transaction (Process ID 124) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.Step Error code: 80004005Step Error Help File:Step Error Help Context ID:0 Any idea?
Sql version
Microsoft SQL Server 2000 - 8.00.818 (Intel X86)
May 31 2003 16:08:15
Copyright (c) 1988-2003 Microsoft Corporation
Standard Edition on Windows NT 5.0 (Build 2195: Service Pack 4)
I have dts running 24 X 7 every 5 minutes
I noticed DTS failed few times a day with error
Step Error Source: Microsoft OLE DB Provider for SQL Server
Step Error Description:Transaction (Process ID 74) was deadlocked on thread | communication buffer resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
Step Error code: 80004005
Step Error Help File:
Step Error Help Context ID:0
The is no entry about in Server server log files.
will trace identify deadlock and why deadlock info not entred into log file ?
;)
Hello Everybody,
My name is Fabio and I post from Italy.
First, I don't know if this argument was already discussed in the past, but I'm new in this group so ...
Second I'm not so expert in DB due to the fact that I'm using SQL for the first time in my life ...
I use a store procedure to pass to every single user in my intranet (more than 150), details of different clients taken from an SQL table containing around 30.000 names.
Users have an ASP page displaying the information Selected in the DB.
This means that 150 users display info of 150 different clients.
To to this I use this code in store procedure:
CREATE PROCEDURE sp_assign_name
@iduser int
AS
if exists(select top 1 * from recallornotes where tmkoperator= @iduser)
update nominativitelecom set tmkmotrecall=convert(nvarchar(1), tmkstatus), tmkstatus=7 where id in (select top 1 id from recallornotes where tmkoperator=@iduser)
else
begin
if exists(select top 1 id from nonotes)
update nominativitelecom set tmkmotrecall=convert(nvarchar(1), tmkstatus), tmkstatus=7, tmkoperator =@iduser where id in (select top 1 id from nonotes with (UPDLOCK) order by NewID())
end
GO
This is working quite well when the number of users are more ore less around 50/60, when the number grows, on the IIS server (Pentium IV server, with Win 2000 in English, MS SQL 2000, and 1 Giga of ram), a file called DLLHOST.exe start to use the 100% of the CPU, and the users cannot display any other ASP page on their screens.
It is not a virus (some newsgroup report this problem connect to a worm virus, but we have latest antivirus files installed and spyware detect/delete on).
The SQL log reports this error:
"transaction (process id 69) was deadlocked on (lock) resources with another process and has been chosen as the deadlock victim. rerun the transaction".
Is there a way to avoid the conflict that occur when different users are trying to select the same record in the DB ?
In other terms, which process will you use in the same situation to select one record per user ?
Thanks in advance for your precious help,
Fabio
Hi All,
please throw in any ideas as it matter of urgency.
We have rebuild our 24/7 heavy loaded website using ASP.NET 2.0 and SQL 2005 (we have one active-passive cluster for main activity and 2 active-active clusters to browse static data).
Main cluster is publisher and distributor for replication of data (small subset of it and it works fine).
Hardware is pretty tough - 16 zeons 32G ram, NetApp SAN.
We had no troubles in first 3 days but now it gives us some headache.
Yesterday it failed and website was unavailable for about 5 min. Today happened the same.
SQL Server rebooted - no failover occured - just rebooted on the same physical box as it was before.
The first message I can see :
All schedulers on Node 0 appear deadlocked due to a large number of worker threads waiting on LCK_M_IS. Process Utilization 0%%.
We didnt have any significant lock issues before and havent been expecting them. Yesterday db failed in the morning - which is not a peak time.
Is anyone can advise on what I have to do to find out the real source of the problem. Is it the same for both incidents ?
P.S. We have 3d party monitoring our db and also we have NetApp software doing Snapshot backups on the SAN.
Hi, i get this error while i manually execute dts. But when i execute dts on my .aspx page, i can't handle this error on "... catch(Exception ex) {... }" part.
catch (Exception ex)
{
return ex.Message ;
//DtsPackage.OnError += new PackageEvents_OnErrorEventHandler(DtsPackage_OnError);
} Here is dts message in a text file.
Step 'DTSStep_DTSDataPumpTask_3' failed
Step Error Source: Microsoft OLE DB Provider for SQL Server
Step Error Description:Transaction (Process ID 124) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
Step Error code: 80004005
Step Error Help File:
Step Error Help Context ID:0
Any idea?
Hi:
On a production SQL2000 STD sp4 server,
1. I have dropped 10 tables with each around 1-2 gb in DB ABC
2. I had run DBCC ShrinkDatabase (ABC, 20) and it is failed after running 133 hours this morning. Yes, 133 hours.
It ran 72 hours last month and shrinked from 200 gb to 180 gb.
Thus, I expected it should be <= 72 hours to fnish since 10 more tables are dropped ?
Msg 1205 Transaction (Process ID 75) was deadlocked on lock | communication buffer resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
DBCC shrinkDatabase will cause deadlocking? how to avoid it?
Is there other ways to speed up?
thanks
-D
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
Is there a way to write a script ,keep the script in SQL Agent job , run the  job to keep track of Blocked and deadlocked queries and store them in any Table or with triggers?with out Profiler,Audit,activitymonitor ?Â
View 5 Replies View RelatedIn an SSIS package I am continually getting the same error:
"Transaction (Process ID 58) was deadlocked on thread | communication buffer resources with another process and has been chosen as the deadlock victim. Rerun the transaction.". Possible failure reasons: Problems with the query, "ResultSet" property not set correctly, parameters not set correctly, or connection not established correctly.
The package is attempting to do a simple Execute SQL Task. Since this seems like a database and not integration services issue, does anybody have any thoughts or insight into this error and where to begin troubleshooting?
Thanks,
Adrian
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
Hi Folks,
I am having this table locking issue that I need to start paying attention to as its getting more frequent.
The problem is that the data in the tables is live finance data that needs to be changed and viewed almost real time so what I have picked up so far is that using 'table Hints' may not be a good idea.
I have a guy at work telling me that introducing a data access layer is the only way to solve this, I am not convinced but havnt enough knowledge to back my own feeling up. (asp system not .net).
Thanks in advance
We are facing deadlock issue in our web application. The below message is coming:
> Session ID: pwdagc55bdps0q45q0j4ux55
> Location: xxx.xxx.xxx.xxx
> Error in: http://xxx.xxx.xxx.xxx:xxxx/Manhatta...Bar=&Mode=Edit
> Notes:
> Parameters:
> __EVENTTARGET:
> __EVENTARGUMENT:
[code].....