I am getting deadlock in my production, i was taken deadlock information from trace file , i found deadlock graph but i am unable to find exact scenario . I am attaching deadlock trace file.
View 5 RepliesI am in the middle of capturing a workload to try and tune a SQL instance and was wondering what kinds of sizes people capture in terms of traces. I am only 1 day into a capture and I believe a typical workload would be a week long capture and I am already at 10GB of files. I am only capturing rpc_completed and sql_batch_completed.
What sizes of workloads do other people capture and then where do you analyse them, do you have particular dedicated server for this kind of thing as at present I am looking to use my local PC. Also what rollover file sizes do people tend to use, I am currently using 1GB.
Where would i find my particular database Error log file, Event log file and Trace file etc?
View 5 Replies View RelatedI have enabled 1222 and 1204 trace and restarted sql server. then i have replicated deadlock in my local.
This is the error came in sql
Msg 1205, Level 13, State 45, Line 1
Transaction (Process ID 51) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
Then i opened ERRORLOG file , there is no information about deadlocks .
Where can found deadlock information and file path. is there any extra options required to enable trace?
DBCC TRACESTATUS(1222,-1)
TraceFlagStatusGlobalSession
1222110
How to find location trace log?
We set our Deadlock Trace on with the following command:
DBCC TRACEOn (1204, -1)
DBCC TRACEOFF (3605, -1);
DBCC TRACESTATUS (-1)
GO
In 2000 this worked fine but in 2005 we get the following error:
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:
What do I need to do to fix this so we can see the cause of the deadlock in the SQL Server logs?
In order to troubleshoot some deadlocking that I am seeing on SQL Server, I am trying to capture the Deadlock XML by enabling the Events Extraction Settings option 'Save Deadlock XML events separately' and specifying a Deadlock XML results file.
Meanwhile, I am also tracing the Deadlock graph, Lock:Deadlock, and Lock:Deadlock Chain events. Yet the xdl file remains empty even though I am getting hits on the events themselves in the SQL Profiler trace.
Also, I have the following trace flag settings enabled.
TraceFlagStatusGlobalSession
1204110
1222110
Why the xdl file remains empty even though (I think) it should contain some XML for deadlocks that are actually happening?
SPID40 ECID : 0 STAEMENT TYPE -> GRANT LINE # 1
INPUT BUFFER :-> SP_EXECUTE, 8
SPID 41 ECID: 0 STATEMENT TYPE : UNKNOW TOKEN # :1
INPUT BUFFER :-> SP_CURSORFETCH 8A G 8 8 8
SPID 40 ECID: 0 STATEMENT TYPE : UNKNOW TOKEN # : - 1
INPUT BUFFER :-> SP_EXECUTE, 8
== LOCK KEY 10:973298577:1 (7A0185EF6B8E)
DATABASE : SASETNWT
TABLE: PSLOCK
INDEX : PS_PSLOCK
HELD BY SPID 40 ECID 0 MODE ‘X’
REQUESTED BY :SPID 41 ECID 0 MODE ‘S’
== LOCK KEY 10:973298577[ ]
DATABASE : SASETNWT
TABLE: PSLOCK
HELD BY SPID 40 ECID 0 MODE ‘IS’
REQUESTED BY :SPID 41 ECID 0 MODE ‘SCHEMA-MOD’
HERE IS WHAT I THINK WHATS GOING ON
First SPID 40 requests a Exclusive lock on the row(key) of table PSlock which is granted by the dB where he is running ‘ Grant sp_execute statement’ !!!
Then SPID 41 request a Shared lock on the table Pslock which is granted by the db where spid 40 is running “ Sp_cursorfetch statement”
Now we have two lock on Pslock table , one by spid 40 with an exculsive lock and other by spid 41 with shared lock.
then spid 40 requests a ‘Schema- mod’ lock on Pslock table which I guess is a table lock
and we have have a dead lock situation here
is the above explanation right ?????
regards
Girish
To get deadlock victim alert do we need to turn on deadlock trace flags or if I create an alert and if there's any deadlock incident happen, it will throw alert (if no deadlock flag is set)?
View 4 Replies View RelatedI am struggling figuring out the token from a CMDEXEC job (as opposed to TSQL Job). It is not an option to execute the command by enabling the executing CMDs via TSQL, which is why I am using the agent. I have seen the Microsoft Site on tokens but all examples seem to be oriented to TSQL Job Type.
I am trying to delete a particular trace file and at same time keeping the SQL Directory dynamic.Taking it a step further is adding in "deleting if file exist".
del $(ESCAPE_SQUOTE(SQLDIR)) + "LogTestTrace.trc"
Hi, I have no idea what i'm doing wrong: Tried to gather more detail information about Deadlock (error # 1205) set the trace flag 1204 - ON (tried 1205 - ON as well) nothing happend, still the same message outgoing "Your transaction (process ID #13) was deadlocked with...." with no any detail.
If anybody met the same problem before, HELP please.
Maybe the information goes to some place other than Error Log file?
Thanks,
Dima
I am trying to load all the MDX queries that run on a Analysis Server instance into a database for further analysis. A SQL Profiler is setup which captures the MDX queries, and when I am loading the Profiler info to database, some of the queries are not coming up in full length.The TextData field doestn't show full MDX query. When loading to the database, the field is next data type. Is there any workaround to get the complete MDX query?Â
View 2 Replies View RelatedIt is possible to create Analysis Services project (*.dwproj) in Visual Studio 2012 Data Tools?
View 5 Replies View RelatedI have this script running to list all FK relationship but it's only for single db,tried to make it work for inter DBs
DECLARE @Tname varchar(40) = 'CustAccount' -- <@>< Table Name to trace
-------------------------------------------------
SELECT DISTINCT No ,
ist1.table_catalog AS [Parent DB],
ist1.table_schema AS ParentSchema,
ParentTable ,
ReferencedColumnName ,
ConstraintName ,
link,
ForeignTable,
ForeignKeyColumn ,
[Code] ....
I've setup a deadlock monitor using extended events like this.
CREATE EVENT SESSION [deadlock] ON SERVER
ADD EVENT sqlserver.lock_deadlock(
ACTION(package0.process_id,sqlserver.client_app_name,sqlserver.client_hostname,
sqlserver.database_id,sqlserver.database_name,sqlserver.plan_handle)
[Code] ....
Deadlock happened couple of days ago. I'm trying to determine the cause of deadlocks. What script should I use to pull that information to see what objects/processes caused deadlock?
what the ideal CPU count and Max Degree of Parallelism are for a 3rd party database server.The server has 12 CPUs, 32GB RAM and all database sizes add up to < 30GB so they can all fit in memory (I tried to force this by doing a select * from every table). On certain payroll days, the CPU gets maxed out to 100% for a few seconds.
MAXDOP was originally set to the default 0. We later changed it to 8 based on several 'best-practices' articles. However the vendor suggests to change it to 1 (no parallelism), while others suggest changing it to 4, so that one run-away query doesn't hog most of the CPUs.
I'd like to find out how many CPUs are actually being used by queries. There is a Degree of Parallelism event in URL.... The BinaryData column says :
0x00000000, indicates a serial plan running in serial.
0x01000000, indicates a parallel plan running in serial.
>= 0x02000000 indicates a parallel plan running in parallel.- What does "parallel plan running in serial" mean ?
I see a lot of 0x01000000, and a few 0x08000000's in my trace.How can i determine whether one query is hogging CPUs and if reducing it to 4 will work?
I have a weekly Maintenance Plan Reindex job that has failed because of a deadlock. My question seems simple enough and I'm ashamed to say I ought to know this answer, but here goes: Does the rest of a given job continue after such failures (this one was maybe 3/4 through the log) occur?
View 6 Replies View RelatedSomehow someone turned on a audit on the sql server and it is filling up our hard drive and shutting down sql server eventually. Been trying to google how to shut this audit off but coming up with no via soolution yet. how can I turn this trace off. Each fiel says AuditTrace and date and they happen every other minute. I went into the sql profiler and can pull up the files but how to shut the trace off, it does not say.
View 9 Replies View RelatedIs there a way to setup a trace to show only direct TSQL statements triggered on my server? note I don't want to capture Procedure calls or the statements called within the procs.
Actually many people are firing direct SQL statements on server. And some are coming from entity framework as well. I just want to capture those.
I am learning Extended event to capture deadlock which already happened, for this in my SQL SERVER 2012.. I am simulating a deadlock . With [URL]... where given a query to find the deadlock details using extended event here is the code..Retrieve from Extended Events in 2012.
SELECT XEvent.query('(event/data/value/deadlock)[1]') AS DeadlockGraph
FROM ( SELECT XEvent.query('.') AS XEvent
FROM ( SELECT CAST(target_data AS XML) AS TargetData
FROM sys.dm_xe_session_targets st
JOIN sys.dm_xe_sessions s
[code]...
This code creates a deadlock but when i run the above Extended events query to get the details of deadlock, it doesnot display any results.
We have (running SQL 2012 Std) and have enabled trace flag 1204 and 1222 for capturing deadlock through extended events. I have enabled deadlock notification through email .But it only send deadlock event occurred notification from the sql server error log . I was wondering if its possible to email the deadlock details they get generated in extended events via DB mail.
View 1 Replies View RelatedI am getting a number of deadlocks when inserting and deleting items from the same table.
The delete statement has a U lock and awaiting an IX lock on an index that covers the column in the where clause.
The insert statement has a IX lock and awaiting a U lock on the same index.
The delete statement is deleting about 5000 rows, where as the insert statement is inserting a single row.
Both these statements are found in stored procedures being called from LINQ to SQL.
I am wondering if there is a way I can prevent the delete statement taking the U lock out?My thinking being if the delete didn't take out the U lock then it would not deadlock with the insert. Are there any hints I could use to avoid the particular lock above?
I have seen various examples of multiple updates causing a deadlock, which can be fixed by adding multiple indexes. However, as I am inserting and deleting rows I imagine that all the indexes will need to be updated by both operations.
I have inherited the architecture and don't have the time to redesign everything at present. My backup plan is to deprioritize the delete and build in a retry mechanism.
However, it would be really good if I could find a more elegant way to handle deleting and inserting rows at the same time.
Deadlock trace information below...
11/02/2015 22:21:26,spid21s,Unknown,waiter id=process1cc9c68558 mode=IX requestType=wait
11/02/2015 22:21:26,spid21s,Unknown,waiter-list
11/02/2015 22:21:26,spid21s,Unknown,owner id=process203f31b498 mode=U
11/02/2015 22:21:26,spid21s,Unknown,owner-list
11/02/2015 22:21:26,spid21s,Unknown,pagelock fileid=1 pageid=721673 dbid=6 subresource=FULL objectname=PerforceReports_Staging.dbo.DebugReport id=lock1663f5d900 mode=U
[Code] ....
Getting events in the default trace saying missing column statistics on a column...
1.The column is the primary key column ( identity )
I am attempting to create a new trace but I get the following error message: "failed to start a new trace".
I have been doing some digging and as I understand it, I had to find the directory Profiler uses for temporary files. So, I typed the following in the command window "SET TMP" and I received the following reply:
C:UsersRossAppDataLocalTemp
Now, according to the forum: [URL] ...
I am supposed to check that the system folder pointed to by the TMP environment variable exists and is not crammed with files.
Well, when I went to the directory C:UsersRossAppDataLocalTemp, it is indeed full of both files and directories. The size is 16.3 MB and has 133 files and 63 folders.
When I had a look at the Environment Variables window and chose TMP the value is "%USERPROFILE%AppDataLocalTemp" which according to my limited understanding is the equivalent to C:UsersRossAppDataLocalTemp.
So, what I am wondering is am I supposed to totally clear out this directory? I am not too keen on doing this because I don't want to stuff my PC up.
how to trace or monitor previous actions in sql server 2012. Like previous using delete command . I want to know who is used that command in server.
View 2 Replies View RelatedWe 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.
I have a deadlock trace running on a production server that is filling up with the following:
Lock: Deadlock Chain
Parallel query worker thread was involved in a deadlock SPID 8
105 - Resource Type Exchange
Spid 8 is a SQL process LOCK MONITOR
There are no graphs as seen with typical deadlock, so it is not two queries that are deadlocking, and I've never seen a deadlock for "LOCK MONITOR"
When we enable tracing for a web application where exactly the file or content of the file "Trace.axd" saves?
View 4 Replies View RelatedSet up a trace with the events RPC:Completed, SQL:BatchCompleted, SQL:BatchStarting, and SQL:StmtCompleted.
When I issue the statement: SELECT * FROM XyzView there is nothing captured in Profiler. If I script out the view and then execute the select statement that defines the view, it does show up in Profiler.
I've tried adding a lot of the other events, i.e. SP:StmtCompleted and the various other StmtStarting events and the trace still does not capture anything.
Am I capturing the wrong events or is this known behavior? My goal is to see what the overhead is for using a view versus persisting the results of the view as a table and referencing that instead. The view in question is against static data, joins 9 tables, and is referenced a lot.
I can use the stats generated when I execute the select that defines the view but I still find this to be curious behavior so I assume I'm doing something wrong.
Is there a dbcc flag that will capture all error messages in the log
e.g. when inserting data into a table, a PK violation occurs throwing, Msg 2627
..similar to trace flag 1222 to capture deadlock info..
After carefully analyzing the situation for almost a month, I pulled the trigger and made an exception at work; we did enable trace flag 2371. We have some tables with billion of rows and outdated statistics causing horrible plans. Tried several methods to update those, but did not solve the problem or was too CPU intensive, causing other issues.
Anyway, one of the side effects I am seeing so far is average vCPU went down by almost 40%. Nothing out of usual (besides the flag) has been enabled or was executed. So my assumption is, CPU hungry plans are now gone or reduced.
Hi guys,
I have been running a trace and see a lot of exception errors with this error.
error: 2557, severity: 16, State: 7
any ideas on what may be casing this?
Hi, i'm doing a script to do a trace, how can i include in my script the option of "Enable File Rollover". I only see it by properties but i would like to include it in a script.
Thanks for your help
Hi,
I am using SQL server2000,often we can see data has been replicated automatically.So,I enabled audit to trace the database.
I do know the Application name field(Column name) in audit file.It says
'DTS Export/Import wizard' the host name is different server.
Plz help me ASAP.