Transaction Deadlock In SQL Server 2005
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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Jun 10, 2002
Hi guys;
i use a transaction that takes a long time to execute.(Different updates on different tables)
I want to use in my transaction a TABLOCKX after each update in order to Lock the table within the Transaction (Until the transaction will finish).
This will normaly force another transaction using the same tables within the first transaction to wait until the lock will release.
1- Because there is no time out set . Does the second transaction wait until the first transaction be commited even if it takes more long time.
2- Does such situation hold a deadlock.
i will apreciate your help. Thinks
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Jun 22, 2007
I have a customer using our program with SQL server and isoccasionally getting a "Transaction (process ID xxxxx) was deadlockedon lock resources with another process and has been chosen as thedeadlock victim." From what they are telling me, there shouldn't beany deadlock happening as they say this happens when they invoicing ina different program that is accessing a different database. Also theerror is happening on an SQL Select from a view and this select isthen showing data in an HTML table for the user. I don't think thisview should need to lock anything, I just want to read the data. Isthere anything I can do to fix this?
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Nov 1, 2007
When I do a data flow task like following, always blocking
1.get data from data source
2.conditional spit by column='Y' or 'N'
3.when column='Y' insert to table a
4 when column='N', ole db command, update table a
but when I run this package, I see there are some rows are 'Y', some rows are 'N',but they can't run together.
Why? I've took long time for the issues.
When I change this data flow to a data flow plus t-sql task, and change ole db command( update table a) to execute tsql task.
The issue can be solved. But I want to know why i can't put these in one data flow?
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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 7, 2007
I have a SSIS package that is run from one job, nowhere else. The package has TransactionOption NotSupported.
In the SSIS package I first have a sequence container that has TransactionOption Required (Serializable). The sequence container contains several Execute SQL tasks that access the same SQL Server 2005 database. The Execute SQL tasks have TransactionOption supported / Serializable. The first SQL statement is:
select p.column_name
from table_name p with (XLOCK, ROWLOCK)
where p.second_column_name = 'COLUMN_VALUE'
After this there are a couple of SQL tasks, and finally a task containing the following SQL:
select p.third_column_name
from table_name p
where p.second_colomn_name = 'COLUNM_NAME'
The idea is that the first query exclusively locks the row in the table_name-table for mutual exclusion purposes, i.e. so that if for some reason the SSIS package would be executed simultaneously two or more times, only one package execution could lock the row and proceed and the other executions will have to wait. There's an index on column second_column_name in the table to avoid the select locking other rows in addition to the required row.
Some questions:
1) Is it so in my setup that when SSIS runtime executes the sequence container it creates a transaction in the beginning of the sequence container and commits the transaction in the end of the sequence container? And in my setup the Execute SQL tasks in the sequence containar are executed under the same transaction?
2) I have a problem that the second query sometimes gives this error:"ErrorCode: -1073548784. ErrorDescription: Executing the query "XXXXX" failed with the following error: "Transaction (Process ID 73) was deadlocked on lock 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 1st query has locked the row for the transaction. How can the second query be deadlocked, shouldn't the transaction have a lock on the row? I'd understand if the 1st query failed sometimes, but don't understand how the 2nd quey can fail.
r,
JM
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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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Oct 11, 2007
I have not turned on DBcc TRACEON (1222, -1) yet because of this message in BOL:
Use DBCC TRACEON ( trace# [, ....n], -1 ) only while users or applications are not concurrently running statements on the system.
I am running the profiler with "Deadlock Graph" but I'm not sure how to use the information.
It would be nice if it would say "this sql statement blocked this sql statement". Any advise on where to start?
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Mar 29, 2006
Hi to all.I'm trying to transact from an ASP.NET application in a machine with an SQL Server 2005 placed in a different machine. I can connect without problems from my application to the database, but the problems are when I need to transact with it. The error message I receive is "Network access for Distributed Transaction Manager (MSDTC) has been disabled. Please enable DTC for network access in the security configuration for MSDTC using the Component Services Administrative tool." (at code I'm using the TransacionScope object).On the first machine, where we have the Visual Studio 2005 and the application web environtment is placed, is an standard Windows XP Professional. On the MSDTC configuration I have checked outgoing and the firewall is down. On the second machine, where is placed my SQL Server 2005, I have all the checkboxs checked at the MSDTC Configuration, and I have the Windows Firewall enabled with the SQL Server and the MSDTC as exceptions, with the ports 1433 and 135 as exceptions too. At the SQL Server Configuration Manager I have as enabled the TCP/IP, the Named Pipes and Shared Memory at Protocols for MSSQLSERVER.When I'm using an SQL Server 2000 database the code works fine and I don't have problems.Any one can help me?Thanks in advance.Jesús
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May 11, 2007
We are implementing 2005 transaction replication on source database to target staging subscring database but we want to keep all transaction changes from source within staging subscribing tables.
If source column gets updated we want to keep old record and new updated record in staging subscriber. Transaction replication synchronizes but does not keep history on subscriber. Do we update stored proc's
anyone have examples of code or ideas??
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Apr 19, 2007
Dear All,
I am getting SQL Server 2005 unable to resume transaction Exception
Please guide and help
Thanks,
Waheed.
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Jun 4, 2007
Hello,
We are maintaining an internal ASP.NET v2.0 website which is quite big and already in production. The underlying SQL Server 2005 database contains 350+ tables.
Recently, we have been asked to implement a new feature which seems functionally quite simple. We have to track every single data modification, which includes insertions, deletions and modifications. This information should be presented to power users in the form of readable strings right in an admin section of our website.
Our team of architects is working on a way to make it possible without putting the SQL Server to a crawl. One thing is for sure, SQL Server 2005 already does the job through its transaction log. It should be a good idea to use it directly instead of managing our own log based on triggers. Why put more pressure on the server to write data that is already logged by the database engine? We have heard that Microsoft's SQL Server team do not support this concept and are wondering why...
It's quite easy to find queries on the web that output very useful information such as date of transactions and what they have done. Although, the data involved in those transactions seems to be stored in a binary field which can be retrived using this query: SELECT "log record" FROM ::fn_dblog(null,null)
3rd parties such as Apex SQL are already doing a great job at decrypting it for us. This is very useful but not efficient since those tools do a very generic job. We would like to optimize it for our needs. All we need to know is who made the modifications, when, in which tables and what are the new values.
We believe that we would have to decrypt the "log record" field from the ::fn_dblog(null, null) table. Is there any way to get basic documentation about how to do it?
Thanks!
Marc Lacoursiere
RooSoft Computing
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Aug 20, 2007
Hi all,
In SQL Server 2000 you could run the piece of code below, to enable the logging of a deadlock in the SQL Server error log. Which could then be used to fire an alert, and then kick of an Agent job to send an SMTP email alert.
Exec sp_altermessage 1205, 'WITH_LOG', 'true'
The error message logged was a nice simple one liner, like this:
Transaction (Process ID 57) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
Now I work for a managed SQL Server company, and a large number of our clients used our alerting for deadlocking to tune their applications, or at a minimum to show them when something was wrong with the database due to sudden rise in the number of deadlocks.
However, in SQL Server 2005, the functionality for the sp_alertmessage procedure has been changed so that you can't update any message id less than 50,000. Which comes inline with the secure engine that Microsoft have designed.
But this now means you can no longer enable the logging for deadlock message ID 1205. Which in turn means no alerting can be enabled.
You can still log information by enabling the necessary trace flags, however that logs very verbose information about the deadlocking chain, which in turn can quickly blow the size of the error logs out.
What I would love to see is this functionality returned in SQL Server 2008, or at least an alternative so that only minimum information is logged initially for a deadlock, and alerting can be setup.
Also, for those of you who have read through the 2005 BOL, about deadlocking, although it states the following in the section on deadlocking:
"...The 1205 deadlock victim error records information about the threads and resources involved in a deadlock in the error log.€?
This isn't the case, unless you enable some trace flags, which as mentioned will give you a whole lot of information, which although is valuable, isn't ideal if you're wanting day to day deadlock tracking.
Does anyone have any thoughts on this? Have you struck this as well? Do you think this should be something that shouldn't have been removed from 2000?
Cheers,
Reece.
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Jun 21, 2006
Hi,I have 2 stored procedure 1st insert the data in parent tables and return the Id. and second insert child table data using that parent table id as paramenter. I have foreign key relationship between these two tables also.my data layer methods somewhat looks likepublic void Save(order value){using (TransactionScope transactionScope = new TransactionScope(TransactionScopeOption.Required)) { int orderId = SaveOrderMaster(value); value.OrderId = orderid; int childId = SaveOrderDetails(value); //complete the transaction transactionScope.Complete(); }}here 1. SaveOrderMaster() calls an stored procedure InserOrderData which insert a new record in order table and return the orderId which is identity column in Order table.2. SaveOrderDetails() call another sotored procedure which insert order details in to table "orderdetail" using the foreign key "orderid".My Problem:Some time the above method works correctly but when i call it repeatledly (in a loop) with data, some time it gives me foreign key error which state that orderid is not existsin table Order. This will happen only randomly. I am not able to figureout the reason. does some one face the same problem. if yes, what could be the reason and/or solution.
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Nov 26, 2007
Hello,
I need to execute a stored procedure from the data layer, that uses a transaction. And I have to override the default transaction timeout for this traansaction
I know how to change the transaction timeout form Management Studio, but I need to be able to change it only for that specific transaction (from the stored procedure's code or from the data layer)
Thanks in advance
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Jun 13, 2006
We have two SQL Server 2005 production DB at remote sites. Due to network bandwidth issue, we need to replicate these DBs (publishers and distributers) to central corporate SQL 2000 DB (subscriber for backup and possible reporting (and in rare case as a failover server).
We would start out with backup from SQL 2000 db restored on remote SQL 2005 DBs. When we have DB issue on remote 2005 DB, we want to restore it from central corp. 2000 DB backup. Since two DBs are replicating to central DB, we DO NOT want combined db back up data on restored remote 2005 db. We can restore the db and delete unwanted data before we turn on replication from this restored server. So, this is not a problem.
The real problem is how to avoid snapshot replication (during initialization) when we create a transaction replication on this restored server to avoid over writing data on the central subcriber sql 2000 DB???
HELP!!
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May 15, 2006
We are using SQL Server 2005 (SP1). I have created a maintenance plan that backs up up the datebase every night. The problem is that the transaction log is continuing to grow. I have been told that a full backup will automatically truncate and shrink the transaction log. However, this is not happening. How can I truncate and shrink the transaction log after a full backup as part of our maintenance plan. Thank you.
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Feb 14, 2007
I have some code that should execute multiple statements and then commit. I am using the Microsoft SQL Server 2005 JDBC Driver 1.1.
The statements only commit ifI close the connection to the SQL Server 2005 instance. I've looked at the example given at http://msdn2.microsoft.com/en-us/library/ms378931.aspx and it doesn't require closing the connection in order to commit.
Example:
public void doCall(Connection con) {
try {
/*Turn off AutoCommit.*/
con.setAutoCommit(false);
/**Call Two Stored Procedures.*/
Statement stmt = con.preapareCall(/*Java Code*/);
stmt.setObject(/*Java Code*/);
stmt.execute();
Statement stmts = con.preapareCall(/*Java Code*/);
stmt2.setObject(/*Java Code*/);
stmt2.execute();
/**Commit the transaction.*/
con.commit();
}
catch (SQLException ex) { //If some error occurs handle it.
ex.printStackTrace();
try {
con.rollback();
}
catch (SQLException se) {
se.printStackTrace();
}
}
}
My transaction never commits, and when I try to query the associated database tables in Microsoft SQL Server Management Studio 2005 my query hangs.
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Jul 6, 2007
Hi,
I have database with unlimited growth in Data with 2MB growth and Log File with 1MB growth. The continuous data is inserted with min 20KB per minute. We struct with following error and Log file size is too large (85GB) than Data file(20GB). Now server is not allowing to take backup as diskspace is not available.
Msg 9002, Level 17, State 2, Procedure DumpData, Line 10
The transaction log for database '%DB' is full. To find out why space in the log cannot be reused, see the log_reuse_wait_desc column in sys.databases
status at SYS.DATABASES:
log_reuse_wait log_reuse_wait_desc
-------------- ------------------------------------------------------------
2 LOG_BACKUP
Please help me to resolved the issue and let me know hints to shrink LOG file. Data inserted are using ADO applications that uses some insert/select stored procedures that does not have begin transaction-Commit Transaction block as appliction issues the Commit over connection object.
Regards,
Pavan
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Mar 4, 2008
Hi all,I am trying to setup a VB.Net development environment on my desktop for one of the application which was already in the production for couple of years (some unknown contractor(s) developed and maintained it so far). The application works fine on the web.Visual Studio 2005, .Net 2.0, SQL 2000, SQL Server 2005 were installed on my desktop. When I try to build the entire application/solution in the debug mode (i.e., with http://localhost/), build succeeds and I could get to the login.aspx. When I try to login, I am getting an error in the Visual Studio at the following code;connection = New SqlConnection(connectionString)
connection.Open()
saying "Communication with the underlying transaction manager has failed", "System.Transactions.TransactionManagerCommunicationException was unhandled by user code". And the web browser displays the following error "Error HRESULT E_FAIL has been returned from a call to a COM component". When I try to connect the SQL Server 2005 with the same ConnectionString attributes by going to Tools>Connect to Database, it works fine. But, through application connection.Open() giving above errors. I have set the MSDTC properties (i.e., under Component Services>MyComputer Properties>Security Configuration) as below:-Enabled Network DTC Access, Allow Remote Clients, Allow Remote Administration, Allow Inbound, Allow Outbound, No Authentication required - selected, Enabled XA Transactions...& DTC Logon Account is "NT AUTHORITYNetworkService".Please help.Thanks in advance,Chandra
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May 30, 2007
I am trying to configure distributed transaction and XA support using Microsoft SQL Server 2005 JDBC Driver. I have coppied SQLJDBC_XA.dll from XA directory and placed in my sql server binn directory and trying to run the script xa_install.sql from binn directory with command as below :
C:Program FilesMicrosoft SQL Server80ToolsBinn>
osql -U sa -n -P admin -S localhost -i C:JavaLibrariesMS SQL Driversqljdbc_1.2enuxa xa_install.sql
But I am getting error saying :
[DBNETLIB]SQL Server does not exist or access denied.
[DBNETLIB]ConnectionOpen (Connect()).
when I replaced local host with the machine name it gives error :
[Shared Memory]SQL Server does not exist or access denied.
[Shared Memory]ConnectionOpen (Connect()).
where in I am able to test connection from Websphere using the same connection.
Please help some one ....... I am in URGENT need.... I need to enable XA suport for my application to run........
Thanks ----
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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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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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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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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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Jun 10, 2015
I have Full database backup upto previous day and transaction logfile of Today transaction. my database has crashed. I have restored previous day's Full backup. I have faced difficulty to restore today's transaction from today's transaction log. What are the steps to restore full database back and one day's transaction log file. Note: there is no differential database backup and transaction backup.
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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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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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