I have a small database and a smalll table ( Table ID=565577053,with two
indexes on this table). when more than one user connected, I got the deadlock on the index KEY and PAGE lock. I setup index with "DisallowRowLock" and "DisallowPageLock" , seems kill the index KEY and PAGE lock problem, but I got this TAB lock situation instead as following:
How can I get rid of this deadlock without changing the application
code(without using set the isolation level or NOLOCK hint). When I load more
data, will this problem goes away?
Any kind of help will be appreciate.
Error: The Script returned a failure result. Task SCR REIL Data failed
OnError - Task SQL Insert Error Msg Error: A deadlock was detected while trying to lock variable "System::ErrorCode, System::ErrorDescription, System::ExecutionInstanceGUID, System::StartTime, User::FEED_ID, User::t_ProcessedFiles" for read access. A lock could not be acquired after 16 attempts and timed out. Error: The expression ""EXEC [dbo].[us_sp_Insert_STG_FEED_EVENT_LOG] @FEED_ID= " + (DT_WSTR,10) @[User::FEED_ID] + ", @FEED_EVENT_LOG_TYPE_ID = 3, @STARTED_ON = '"+(DT_WSTR,30)@[System::StartTime] +"', @ENDED_ON = NULL, @message = 'Package failed. ErrorCode: "+(DT_WSTR,10)@[System::ErrorCode]+" ErrorMsg: "+@[System::ErrorDescription]+"', @FILES_PROCESSED = '" + @[User::t_ProcessedFiles] + "', @PKG_EXECUTION_ID = '" + @[System::ExecutionInstanceGUID] + "'"" on property "SqlStatementSource" cannot be evaluated. Modify the expression to be valid.
Warning: The Execution method succeeded, but the number of errors raised (4) reached the maximum allowed (1); resulting in failure. This occurs when the number of errors reaches the number specified in MaximumErrorCount. Change the MaximumErrorCount or fix the errors.
And how did I get 4 errors? - I only set my script task result to failure
I have scheduled a job using Job Agent in SQL2K (Management). Every once in a while i get an error when i view job history:
Executed as user: xxx. Transaction (Process ID 53) was deadlocked on lock | communication buffer resources with another process and has been chosen as the deadlock victim. Rerun the transaction. [SQLSTATE 40001] (Error 1205). The step failed.
The process ID changes for every error. Sometimes its 51, 56, or 54 as well.
I have checked several times, but there is no other process that runs at that time. I even rescheduled it for a different time, but even then it fails about once every week or two.
How can i check what is the other procedure it is deadlocking with, if it is? OR what exactly is the problem, if it is not with any other process?
Hi , I have some issues with deadlock.I am getting deadlock becuase of two select on same table. The sql server log is like this , Select statements should have always shared lock.I am not getting why its doing exclusive lock and creating deadlock.
5/6/2008 12:38 spid4s Unknown Deadlock encountered €¦. Printing deadlock information 5/6/2008 12:38 spid4s Unknown Wait-for graph 5/6/2008 12:38 spid4s Unknown Log Viewer could not read information for this log entry. Cause: Data is Null. This method or property cannot be called on Null values.. Content: 5/6/2008 12:38 spid4s Unknown Node:1 5/6/2008 12:38 spid4s Unknown KEY: 9:72057594050117632 (8d036f07c58f) CleanCnt:3 Mode Flags: 0×0 5/6/2008 12:38 spid4s Unknown Grant List 3: 5/6/2008 12:38 spid4s Unknown Owner:0×12E9F160 Mode: S Flg:0×0 Ref:1 Life:00000001 SPID:68 ECID:0 XactLockInfo: 0×353D1C54 5/6/2008 12:38 spid4s Unknown SPID: 68 ECID: 0 Statement Type: SELECT Line #: 4 5/6/2008 12:38 spid4s Unknown Input Buf: Language Event: (@actDefId nvarchar(36)@stateList varchar(1)@stateList1 varchar(1)@procRelObjType smallint@procRelObjIdList varchar(36)) 5/6/2008 12:38 spid4s Unknown Requested By: 5/6/2008 12:38 spid4s Unknown ResType:LockOwner Stype:€™OR€™Xdes: 0×2FBB67F0 Mode: X SPID:112 BatchID:0 ECID:0 TaskProxy0×0792E378) Value:0×38baa20 Cost0/11888) 5/6/2008 12:38 spid4s Unknown Log Viewer could not read information for this log entry. Cause: Data is Null. This method or property cannot be called on Null values.. Content: 5/6/2008 12:38 spid4s Unknown Node:2 5/6/2008 12:38 spid4s Unknown KEY: 9:72057594049986560 (6f02e1cd37c3) CleanCnt:3 Mode:X Flags: 0×0 5/6/2008 12:38 spid4s Unknown Wait List: 5/6/2008 12:38 spid4s Unknown Owner:0×12396EE0 Mode: S Flg:0×2 Ref:1 Life:00000000 SPID:90 ECID:0 XactLockInfo: 0×0AA8178C 5/6/2008 12:38 spid4s Unknown SPID: 90 ECID: 0 Statement Type: SELECT Line #: 4 5/6/2008 12:38 spid4s Unknown Input Buf: Language Event: (@actDefId nvarchar(36)@stateList varchar(1)@stateList1 varchar(1)@procRelObjType smallint@procRelObjIdList varchar(36)) 5/6/2008 12:38 spid4s Unknown Requested By: 5/6/2008 12:38 spid4s Unknown ResType:LockOwner Stype:€™OR€™Xdes: 0×353D1C30 Mode: S SPID:68 BatchID:0 ECID:0 TaskProxy0×13B3E378) Value:0×12e9e780 Cost0/6164) 5/6/2008 12:38 spid4s Unknown Log Viewer could not read information for this log entry. Cause: Data is Null. This method or property cannot be called on Null values.. Content:
If you have any idea regarding this please let me know ASAP.
I have a deadlock that I can't figure out. Both processes are doing a select from the same table. The owner mode on both is IX and the request mode is S. The lock is a Page Lock.
I have a problem to read varibale inside script. the error discription is following-
Error: A deadlock was detected while trying to lock variables "User::FilePath" for read/write access. A lock cannot be acquired after 16 attempts. The locks timed out.
this is my code. i my code i am using two variables, but i can access only one . i have to retrive file directory and file path is generated by other system.
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?
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.
Hi We are facing an acute situation in our web-application. Technology is ASP.NEt/VB.NET, SQL Server 2000.
Consider a scenario in which User 1 is clicking on a button which calls a SQL stored procedure. This procedure selects Group A of records of Database Page1.
At the same time if User 2 also clicks the same button which calls same SQL stored procedure. This procedure selects Group B of records of Database Page1.
So, its the same Page1 but different sets of records. At this moment, both the calls have shared locked on the Page1 inside the procedure.
Now, in call 1, inside the procedure after selecting Group A of records, the next statement is and update to those records. As soon as update statement executes, SQL Server throws a deadlock exception as follows :
Transaction (Process ID 78) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction
We are able to understand why its happening. Its because, Group A and Group B of records are on the same Page1. But both the users have shared lock on the Page1. So, no one gets the exclusive lock in records for update, even though, the records are different.
How can I resolve this issue? How can I get lock on wanted rows instead of entire page?
Hi, I have set of 2 DTS packages, one of which calls the other by forming a command-line (dtexec) using a Execute Process task.
From the parent package-> Execute Process Task-> dtsexec /F etc... /<pkg variable> = "servername"
Each of the parent and the called package have a variable: "User::DWServerSQLInstance" which is mapped to the SQL server connection manager server name property using an expression. The outer package has the above variable and so does the inner called package (which gets assigned through the command line from the outerpackage call to inner)
I "sometimes" get the following error:
OnError,I4,TESTDOMAdministrator,ACDWAggregation,{A1F8E43F-15F1-4685-8C18-6866AB31E62B},{77B2F3C7-6756-46EB-8C01-D880598FB4B3},5/22/2006 5:10:28 PM,5/22/2006 5:10:28 PM,-1073659822,0x,The variable "User::DWServerSQLInstance" is already on the read list. A variable may only be added once to either the read lock list or the write lock list.
Help would be appreciated!
I have seen other posts on this but, not able to relate the solution to my scenario.
Package works fine when run from BIDS, DTExec, dtexecui. When I schedule it, It get these random errors. (See below)
The main culprit is a variable called "RecordsetFileDIR" which is set using an expression. (@[User::_ROOT] + "RecordSets\")
A number of other variables use this as part of their expression and as they all fail, pretty much everything dies.
I have installed SP1 (Not Beta) on server. Package uses config files to set the value of _ROOT.
The error does not always seem to be with this particular variable though. Always a variable that uses an expression but errors are random. Also, It will run 3 out of 10 times without a problem. I am the only person on the server at the time.
Any ideas?
Cheers,
Crispin
Error log:
OnError,,,POSBasketImport,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1073659822,0x,The variable "User::RecordsetFileDIR" is already on the read list. A variable may only be added once to either the read lock list or the write lock list.
OnError,,,POSBasketImport,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1073639420,0x,The expression for variable "rsHeaderFile" failed evaluation. There was an error in the expression.
OnError,,,DF_Header_Header,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1071636247,0x,Accessing variable "User::rsHeaderFile" failed with error code 0xC00470EA.
OnError,,,Move All Data,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1071636247,0x,Accessing variable "User::rsHeaderFile" failed with error code 0xC00470EA.
OnError,,,Load Open Batches and Process Files,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1071636247,0x,Accessing variable "User::rsHeaderFile" failed with error code 0xC00470EA.
OnError,,,POSBasketImport,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1071636247,0x,Accessing variable "User::rsHeaderFile" failed with error code 0xC00470EA.
OnError,,,DF_Header_Header,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1071636390,0x,The file name is not properly specified. Supply the path and name to the raw file either directly in the FileName property or by specifying a variable in the FileNameVariable property.
OnError,,,Move All Data,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1071636390,0x,The file name is not properly specified. Supply the path and name to the raw file either directly in the FileName property or by specifying a variable in the FileNameVariable property.
OnError,,,Load Open Batches and Process Files,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1071636390,0x,The file name is not properly specified. Supply the path and name to the raw file either directly in the FileName property or by specifying a variable in the FileNameVariable property.
OnError,,,POSBasketImport,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1071636390,0x,The file name is not properly specified. Supply the path and name to the raw file either directly in the FileName property or by specifying a variable in the FileNameVariable property.
OnError,,,DF_Header_Header,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1073450901,0x,"component "rsHeader" (365)" failed validation and returned validation status "VS_ISBROKEN".
OnError,,,Move All Data,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1073450901,0x,"component "rsHeader" (365)" failed validation and returned validation status "VS_ISBROKEN".
OnError,,,Load Open Batches and Process Files,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1073450901,0x,"component "rsHeader" (365)" failed validation and returned validation status "VS_ISBROKEN".
OnError,,,POSBasketImport,,,10/05/2006 12:03:34,10/05/2006 12:03:34,-1073450901,0x,"component "rsHeader" (365)" failed validation and returned validation status "VS_ISBROKEN".
I want to lock a table so others cannot lock it but able to read it inside transactions.
The coding I need is something like this: set implicit_transactions on begin transaction select * from table1 with (tablock, holdlock) update table2 set field1 = 'test' commit transaction commit transaction
I have tried the coding above, it won't prevent others from locking table1.
So, I changed the tablock to tablockx to prevent others from locking table1. But this will also prevent others from reading table1. So, how can I lock table1 so others cannot lock it but still able to read it?
In a high traffic environment, deadlocks eventually occur as number of data processes increase. How can deadlocks be avoided, minimized and resolved. Please kindly provide scenario examples and samples of T-SQL code. Thanks much.
Iam trying to bcp a table(residing on my prod server to my local machine from command prompt) .Actually the table iam trying to bcp has heavy updates and selects, from users (70 users). The users complain that system becomes slow.Is it got anything to do with my trying to bcp the mentioned table(table has 170,000 records).Also whenever i try to bcp this table, only after being chosen as the deadlock victim by Sql server,for 3 or 4 times that iam able to bcp the table.
Any help regarding this will be very much appreciated TIA kinnu
I am unable to control the granularity of locks in our queries. We are running queries through MTS and are getting deadlocks.
The batch includes two inserts and one select query - all are hitting on only one table. This table has a unique clustered and a unique nonclustered index as well as a primary key.
Within the batch, I have given a table hint to set transaction isolation level to READCOMMITTED, ROWLOCK for the insert statements, like this
INSERT INTO ib_price with (READCOMMITTED,ROWLOCK)........
and the same for the Select statement.
SELECT retail_price, price_status_id FROM ib_price with (READCOMMITTED,ROWLOCK)
When I run sp_lock on the spid, I get output indicating that SS7 is placing a IX lock on the table. I'm pretty sure this is a big contributor to the deadlock.
I get the deadlock when I try to run more than one client with similar insert parameters.
How can I control the granularity to just rowlocks?
I am getting deadlock running a stored procedure from two machines. Looking at the error log (generated using trace flag 1204 and 3605), it seems the deadlock is on a key. But what I fail to understand is how come sql server granted exclusive lock on the key to both connections. The grant list shows that lock with Mode X is granted to both connection.
Can anyone help me resolve deadlock with following text
Parallel Query worker thread Involved in deadlock.
I am particularly interested in resolving details of above mentioned line,as I started getting dead lock more frequently now and when I look into query involved blocking and victim I see nothing that can cause deadlock they are update insert and select statement which were fine for long and all of sudden started giving problem.
Thanks in advance, for any knowledge share my mail id scraval@hotmail.com
Hi, When many users run some stored procedures I 've got some deadlocks. How to avoid that? We run large stored procedures code which are using sometime the same table. What is the best way for using the transaction isolation level, fillfactor indexes, procedure cache configuration ...etc to avoid that.
In addition, I am using MTS and sometimes the Tempdb is also locked, is it a Microsoft bug (again) ?
We had a dead lock every night 9:00pm. I found out Server/Current Activity --Object Locks : The error log showing error 17824, severity:10, state 0 DNCC TRACEON 208, SPID 28 DBCCTRACEOFF 208, SPID 28 In current activity --object locks and reapetedly showing "tempdb.dbo.sysobjects/sysindexes/syscolumns" 28:sa.master.dbo /INSERT /SQL_servername (MS SQLEW)
Sorry for bombading the forum with all these questions, but i am relatively new to sql 2000.
I am getting dead lock on the following procedure.
important background information 1. this is a multi user web-based call centre application 2. this procedure loads up a new contact based on priority
I see no reason how a dead lock could occur. does any one have any idea. could it be something else that is locking up resource used by this procedure?
CREATE PROCEDURE topcat.getNewContactInfo ( @contact_id int ) AS BEGIN begin transaction
declare @id int
set @id = (SELECT TOP 1 _id FROM class_contact WHERE (status IS NULL OR status='New Contact' OR status = 'No Connect' OR status='callback') AND (checked_in IS NULL OR checked_in <> 1) AND (callback_date >= (getdate() + 1) OR callback_date IS NULL ) ORDER BY priority DESC)
UPDATE class_contact SET checked_in = 1 WHERE _id = @id SELECT TOP 1 * FROM class_contact WHERE _id = @id
commit END GO
wat i dont' get is that, this procedure only has one update statement, this is the only statement that could possibly hold a lock on another resource (i think) , i can't see how a dead lock can happen in this case since this procedure doesn't hold up 2 resources at a time.
Using SQL Server 2000 SP3a, I run the following in 2 query analizerwindows on the Northwind database, the second one always gets thedeadlock Msg 1205:Window 1:declare @cnt intselect @cnt = 5while @cnt > 0beginbegin transactionselect * from orders (updlock) where employeeid = 1update orders set employeeid = 1 where employeeid = 1waitfor delay '00:00:03'commitselect @cnt = @cnt -1endWindow 2:declare @cnt intselect @cnt = 5while @cnt > 0beginbegin transactionselect * from orders (updlock) where employeeid = 1 and customerid ='ERNSH'waitfor delay '00:00:02'commitselect @cnt = @cnt -1endThe query in the first window gets 123 rows and places update locks onthem, then updates them and commits. The query in the second windowgets a subset (about 5) of the results that window 1 gets also tryingto place update locks on the same rows. Shouldn't the query in window 2just wait for the transaction in window 1 to finish? why would itdeadlock?you can also get rid of the delay in the second window and it willdeadlock faster.thanks in advance.Eugene
Hi.create table joe(c1 integer not null, c2 integer not null)Two sessions:Session 1:BEGIN TRANinsert into joe (c1,c2) values (1,2)Session 2:BEGIN TRANinsert into joe (c1,c2) values (3,4)Session 1:select * from joeSession 2:select * from joeOne of the sessions gets a deadlock victim message.thanks,Joe
I have a table that every 30 minutes needs to be repopulated fromanother table that is recreated from scratch just before.What I did was this:CREATE PROCEDURE BatchUpdProducts ASbegin transactiondelete productsinsert into productsselect * from productsTempcommit transactionGOThis takes about 30 seconds to run. I tried it doing it with a cursor,row by row, but it took like 30 minutes to run instead. The problemis with the fast approach is, once in a while I get a deadlock errorin different areas trying to access the products table. Using SQLServer 2000 by the way.Any ideas?
Here is the exception I am getting, any idea why this might be happening:
Exception: ThisMethod is done: let this go: Exception: Transaction (Process ID 74) was deadlocked on lock | communication buffer resources with another process and has been chosen as the deadlock victim. Rerun the transaction. Stack Trace: at
Hi, I need to trace deadlock, one of article was mentioning “QL Server Profiler's Create Trace Wizard to run the "Identify The Cause of a Deadlock" for SQL Server 7.0, is there any way I can do this in Sql Server 2000?
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.
