Deadlock With Index Intersection
Nov 8, 2002
Hi,
I have a deadlock situation with index intersection.
Connection1:
Updates a table T1 which has indexes I1 and I2
Connection2:
Selects from T1 (joining many other tables), SQL Server uses index intersection of I1 and I2.
The deadlock error log shows,
Connection1 has exclusive lock on I1 and waits on exclusive lock request on I2
Connection2 has a shared lock on I2 and waits on shared lock request on I1
Connection2 is selected as the deadlock victim.
The transaction isolation level is explicitly set to READ COMMITTED in ADO connection object.
I don't understand why SQL server needs to hold on the shared lock on I1 while waiting for a shared lock on I2.
Is there any index hint to prohibit SQL server from using index intersection other than explictly using INDEX=I1 or I2.
Thanks
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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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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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Aug 9, 2006
Parwej writes "i have one table, fields are
cs_call_id , fromid , toid , body
----------------------------------
101 1 2 fg
101 3 2 df
101 4 2 fd
101 4 1 dfd
101 3 1 w3e
i would like to find
conversation between
2,3,4
means find the row or 2,3,4 (fromid or toid)"
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Jun 3, 2008
Hello all,
I'm new to SQL and my Teach Yourself in Blah Blah Blah book doesn't index anything helpful to my task. I have a single
TABLE ratings (rid INTEGER PRIMARY KEY, mvid INTEGER, uid INTEGER, rating INTEGER)
with about 100,000,000 rows. I would ultimately like to be able to select rows that are the intersection of two mvid on uid or vice versa -- that is, all rows whose uid is present in the set of rows where mvid=a AND in the set where mvid=b (or vice versa). Something like:
ridmviduidrating
----------------------
1123763
2123314
3123442
4211652
5211764
6211445
7535933
8535762
SELECT * FROM ratings INTO @temp_table WHERE mvid=123
SELECT * FROM ratings WHERE uid IN @temp_table AND mvid=211returns
5211764
6211445
FIRST, I don't know how to accomplish this intersection at all and the only idea I've had is querying the first clause of the intersection and storing it in a temporary/variable table then selecting from that and the original table for the second clause (not that I know how to do this), but I'm afraid this will be very inefficient for the >O(n^2) queries I must perform, so SECOND, should I build derived intersection tables from the results so as to have ~O(1) when repeating the queries later, or will SQL be doing sufficient behind-the-scenes magic? Is there an efficient SQL statement that could generate table(s) of the set of intersections if necessary? Thanks
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Jul 23, 2005
I'm trying to build dynamic sql from a string passed by a callingapplication. Let's assume for this discussion that the user can pass astring of letters with these logical operators ("and", "or", and "andnot") seperating them. Each letter can be rebuilt into a sub querythat will search for people in a table by their middle initial. Forexample,X and Y(select SSN from tblPerson where MiddleInitial = 'X') UNION(select SSN from tblPerson where MiddleInitial = 'Y')This seems pretty easy with the and operator (UNION) but how can I do"or" and "and not"? I remember from a SQL class I had 10 years agothat there was an INTERSECTION operator but it appears that T-SQLdoesn't support it. The closest option is EXIST and NOT EXIST butthese can not be simply inserted between two sub queries (I think),they require the user of a where clause. It would obviously work inthe example above but in the more complecated example below it wouldn'tbe an easy replacement of the operators and sub queries.X and (Y or J) and not LSo, the bottom line is that I have no problem replacing the letterswith the appropriate sub query but I'm looking for a way to replace thelogical operator with SQL syntax that will mimic the logical operator.I hope this makes sense. : )Will Wirtz
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Nov 12, 2004
Hi all !
I have a table with no keys (temp table) which looks like this :
col1|col2|col3
001|A|.087
001|B|.032
001|C|.345
002|A|.324
002|B|.724
003|A|.088
003|C|.899
001|A|.087
001|A|.234
001|B|.032
As you see, there is some duplicate entries in it. I would like to get a list of all the rows that have the same col1 and col2 BUT different col3 value. The result should return col1=001 col2=A but NOT col1=001 col2=B. I tried a lot of queries with EXISTS, HAVING, etc... but nothing seems to work.
Anyone have an idea how I can do it ?
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Aug 14, 2006
Hi Can anybody explain me what is the difference between inner join and intersection?
I prepare a query but it shows the same results then why we need two functions like this to perform same operation
Thanx-Nagu
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Apr 26, 2008
Lets say that Dealers have ZipCodes, and that a Dealer can have more than one zipCode, and we want the list of dealers that have both 90210 and 90211 zip codes. BUT we don't want any dealers that have only one of the two ZipCodes in question
What I want to do is something like this
Select DealerID from DealerZips where Zip = '90210'
intersection
Select DealerID from DealerZips where Zip = '90211'
but I get this error msg:
Line 2: Incorrect syntax near 'intersection'
The following sql is silly, but it does run without error
Select DealerID from DealerZips
intersection
Select DealerID from DealerZips
So I am pretty sure my problem is with the Where clauses.
help!
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Apr 17, 2014
Using SQL Server 2008 R2
I'm trying to create a report and chart for a a manufacturing resource's activity for a given period (typically 30-90 days)
Jobs are created for the length of the run (e.g. 4 days). If the weekend is not worked and the above jobs starts on a Friday, the resource's activity needs to show 1 day running, 2 days down, 3 days running without the production scheduler having to make it two jobs. (A job can have multiple interruptions due to downtime). I have the jobs' schedules in one table and the downtimes in another (so think of the downtime as a calendar table--non working hours). Unusually, the end time is supplied with the downtime factored in.
So I need the query to create 3 datetime ranges for this job: Fri running, Sat,Sun down, Mon,Tues,Wed Running. Been going round in circles on this for a while. i'm sure there's an elegant way to do it: I just can't find it. I've found several similar post, but can't apply any to my case (or at least can;t get them to work)
Below is some sample date and expected results. I hope the explanation and example data is clear.
-- Create tables to work with / Source and Destination
CREATE TABLE #Jobs
(
ResourceID int
,JobNo VARCHAR(10)
,startdate SMALLDATETIME
,enddate SMALLDATETIME
[Code] ....
Below is some sample data
|--------------------------J1------------------------------------| running
|----D1-----| |-------D2-------| down
|--J1--|----D1-----|-------J1------|-------D2-------|-----J1-----| result
|-----------------J1-----------------------| running
|----D1-------| down
|-----------------J1-----------------------| |----D1-------| result
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Jul 24, 2015
SSAS 2008 R2
Is it possible to filter out a measure only at the intersection of Two dimension members? I have a date dimension, a Hospital dimension and a wait time measure.
For Example, is it possible to filter out Wait time for Bayside Hospital for the Month of June 2015?
I want Wait time to continue to be displayed for all other months and roll up into the totals without the filtered value.
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May 30, 2007
I'd like to create a report with the folloiwng format:
DATE1 DATE2 DATE3 DATE4 DATE5 [fixed 5 dates across the top, from today to T+5]
THING1 x x x x
THING2 x x x x
THING3 x x x x
THING4 x x x x
my raw data looks like this:
THING1, DATE1, TEXT VALUE 1
THING1, DATE2, TEXT VALUE 2
&c&c.
Now: there may be 0, 1 or several (by which I mean 2-5 max) text values to display at each intersection. If there are zero I'd like it to be blank, if there are one or several, i'd like to display them in a little list within the cell.
Is this possible?
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Oct 20, 2006
please explain the differences btween this logical & phisicall operations that we can see therir graphical icons in execution plan tab in Management Studio
thank you in advance
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Sep 30, 2015
I am using Full Text Index to index emails stored in BLOB column in a table. Index process parses stored emails, and, if there is one or more files attached to the email these documents get indexed too. In result when I'm querying the full text index for a word or phrase I am getting reference to the email containing the word of phrase if interest if the word was used in the email body OR if it was used in any document attached to the email.
How to distinguish in a Full Text query that the result came from an embedded document rather than from "main" document? Or if that's not possible how to disable indexing of embedded documents?
My goal is either to give a user an option if he or she wants to search emails (email bodies only) OR emails AND documents attached to them, or at least clearly indicate in the returned result the real source where the word or phrase has been found.
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Dec 5, 2007
Dear All.
We had Teradata 4700 SMP. We have moved data from TD to MS_SQL SERVER 2003. records are 19.65 Millions.
table is >> Order_Dtl
Columns are:-
Client_ID varchar 10
Order_ID varchar 50
Order_Sub_ID decimal
.....
...
..
.
Pk is (ClientID+OrderId+OrderSubID)
Web Base application or PDA devices use to initiate the order from all over the country. The issue is this table is not Partioned but good HP with 30 GB RAM is installed. this is main table that receive 18,0000 hits or more. All brokers and users are using this table to see the status of their order.
The always search by OrderID, or ClientID or order_SubNo, or enter any two like (Client_ID+Order_Sub_ID) or any combination.
Query takes to much time when ever server receive more querys. some orther indexes are also created on the same table like (OrderDate, OrdCreate Date and Status)
My Question are:-
Q1. IF Person "A" query to DB on Client_ID, then what Index will use ? (If any one do Query on any two combination like Client_ID+Order_ID, So what index will be uesd.? How does MS-SQL SERVER deal with these kind of issues.?
Q2. If i create 3 more indexes on ClientID, ORderID and OrdersubID. will this improve the performance of query.if person "A" search record on orderNo so what index will be used. (Mind it their would be 3 seprate indexes for Each PK columns) and composite-Clustered index is also available.?
Q3. I want to check what indexes has been used? on what search?
Q4. How can i check what table was populated when, or last date of update (DML)?
My Limitation is i Dont Create a Partioned table. I dont have permission to do it.
In Teradata we had more than 4 tb record of CRM data with no issue. i am not new baby in db line but not expert in sql server 2003.
I am thank u to all who read or reply.
Arshad
Manager Database
Esoulconsultancy.com
(Teradata Master)
10g OCP
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Oct 28, 2015
My SSIS package is running very slow taking so much time to execute, One task is taking 2hr for inserting 100k records, i have disabled unused index still it is taking time.I am rebuilding/Refreshing indexes and stats once in month if i try to execute on daily basis will it improve my SSIS Package performance?
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Jan 22, 2006
Keep getting this error when positioning to the last page of a report.
Using Server 2003...SqlRpt Svcs 2000 sp2
Detail error msg:
Exception of type Microsoft.ReportingServices.ReportRendering.ReportRenderingException was thrown. (rrRenderingError) Get Online Help
Exception of type Microsoft.ReportingServices.ReportRendering.ReportRenderingException was thrown.
Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index
Anyone have any suggestions? Any way to find out what collection is blowing?...or where parameter name: index comes from?
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Jun 20, 2008
hello friends
i have table1 and 200 coulumn of table1 :) i have 647.600 records. i entered my records to table1 with for step to code lines in one day :)
i select category1 category2 and category3 with select code but i have just one index.. it is productnumber and it is primarykey..So my select code lines is so slow.. it is 7-9 second.. how can i select in 0.1 second ? Should i create index for category1 and category2 and category3 ? But i dont know create index.. My select code lines is below.. Could you learn me and show me index for it ?? or Could you learn me and show me fast Select code lines and index or etc ??? Also my search code line have a dangerous releated to attaching table1 with hackers :)
cheersi send 3 value of treview1 node and childnode and child.childnode to below page.aspx :)
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not Me.IsPostBack Then
If Request("TextBox1") IsNot Nothing ThenTextBox1.Text = Request("TextBox1")
End If
If Request("TextBox2") IsNot Nothing ThenTextBox2.Text = Request("TextBox2")
End If
If Request("TextBox3") IsNot Nothing ThenTextBox3.Text = Request("TextBox3")
End If
End If
Dim searchword As String
If Request("TextBox3") = "" And Request("TextBox2") = "" Then
searchword = "Select * from urunlistesi where kategori= '" & Request("TextBox1") & "'"
End If
If Request("TextBox3") = "" Then
searchword = "Select * from urunlistesi where kategori= '" & Request("TextBox1") & "' and kategori1= '" & Request("TextBox2") & "'"
End If
If Request("TextBox3") <> "" And Request("TextBox2") <> "" And Request("TextBox1") <> "" Then
searchword = "Select * from urunlistesi where kategori= '" & Request("TextBox1") & "' and kategori1= '" & Request("TextBox2") & "' and kategori2= '" & Request("TextBox3") & "'"
End If
SqlDataSource1.SelectCommand = searchword
End Sub
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Jul 9, 2004
Hi,
I'm running a merge replication on a sql2k machine to 6 sql2k subscribers.
Since a few day's only one of the merge agents fail's with the following error:
The merge process could not retrieve generation information at the 'Subscriber'.
The index entry for row ID was not found in index ID 3, of table 357576312, in database 'PBB006'.
All DBCC CHECKDB command's return 0 errors :confused:
I'm not sure if the table that's referred to in the message is on the distribution side or the subscribers side? A select * from sysobjects where id=357576312 gives different results on both sides . .
Any ideas as to what is causing this error?
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Jul 3, 2006
Hi everyone,
When we create a clustered index firstly, and then is it advantageous to create another index which is nonclustered ??
In my opinion, yes it is. Because, since we use clustered index first, our rows are sorted and so while using nonclustered index on this data file, finding adress of the record on this sorted data is really easier than finding adress of the record on unsorted data, is not it ??
Thanks
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Mar 5, 2015
I have a clustered index that consists of 3 int columns in this order: DateKey, LocationKey, ItemKey (there are many other columns in this data warehouse table such as quantities, prices, etc.).
Now I want to add a non-clustered index on just one of the other columns, say LocationKey, like this:
CREATE INDEX IX_test on TableName (LocationKey)
I understand that the clustered index keys will also be added as key columns to any NC indexes. So, in this case the NC index will also get the other two columns from the clustered index added as key columns. But, in what order will they be added?
Will the resulting index keys on this new NC index effectively be:
LocationKey, DateKey, ItemKey
OR
LocationKey, ItemKey, DateKey
Do the clustering keys get added to a NC index in the same order as they are defined in the clustered index?
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Jun 18, 2008
Quick question about the primary purpose of Full Text Index vs. Clustered Index.
The Full Text Index has the purpose of being accessible outside of the database so users can query the tables and columns it needs while being linked to other databases and tables within the SQL Server instance.
Is the Full Text Index similar to the global variable in programming where the scope lies outside of the tables and database itself?
I understand the clustered index is created for each table and most likely accessed within the user schema who have access to the database.
Is this correct?
I am kind of confused on why you would use full text index as opposed to clustered index.
Thank you
Goldmember
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Sep 10, 2007
Hi All,
I 'm working to improve some sql performance.
One of the major syntax inside the SELECT statment is ..
WHERE FIELDA IN (SELECT PARAVALUE FROM PARATABLE WHERE SESSIONID = "XXXXX" AND PARATYPE='A') AND
WHERE FIELDB IN (SELECT PARAVALUE FROM PARATABLE WHERE SESSIONID = "XXXXX" AND PARATYPE='B') AND
WHERE FIELDC IN (SELECT PARAVALUE FROM PARATABLE WHERE SESSIONID = "XXXXX" AND PARATYPE='C') AND
WHERE FIELDD IN (SELECT PARAVALUE FROM PARATABLE WHERE SESSIONID = "XXXXX" AND PARATYPE='D') AND
WHERE FIELDE IN (SELECT PARAVALUE FROM PARATABLE WHERE SESSIONID = "XXXXX" AND PARATYPE='E') AND
WHERE FIELDF IN (SELECT PARAVALUE FROM PARATABLE WHERE SESSIONID = "XXXXX" AND PARATYPE='F')
(It's to compare the field content with some user input parameter inside a parameter table... )
I think properly is that the SELECT ... IN is causing much slowness in the sql statement. I have indexed FIELDA , FIELDB, FILEDC etc and those PARAVALUE and PARATYPE in the PARATABLE table. But perfromance is still slow and execution takes >20 seconds for 200000 rows of records.
Do any one know if still any chance to improvide the performance like this?
Much Thanks,
Andy
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Apr 17, 2007
I'm trying to find whether there is a dmv or system view that can help me see the last time an index was rebuilt or created. Assuming I rebuilt an index using tsql commands (not a job with a history), is there a way to find out the last time that index was rebuilt?
Thanks much.
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Apr 26, 2008
Hello everyone,Can you please help me on the following problem that i have.I am using the microsoft web stress tools to simulate 100 concurrent users for one min, and the database will go into a deadlock for large part of the 100 concurrent users.Please help...i've been stuck for many days already. Thanks...Error 5: Transaction (Process ID 497) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction..Here is my code.My connection string:<connectionStrings><add name="Connection_String" connectionString="Data Source=123.123.123.123;Initial Catalog=DBName;MultipleActiveResultSets=true;User ID=uname;Password=upass;connection timeout=60" providerName="System.Data.SqlClient"/> </connectionStrings>My web apps will call the below function. And the deadlock always occurs at the update statement (error 5). I believe it's probably the select statement above locked up the row. I've put in (UPDLOCK) for the select statement, and it still didn't work.private void UpdateLogTables(string Station_ID, string ContentFileName, string FileSize, string IP){ContentFileName = Regex.Replace(ContentFileName, "'", "''");string AdFileName = "";string AdFileNameClause = "";string DownloadCount = "";string TotalFileSize = "";string DownloadDate = "";string currentDate = "";string tempDate = "";string MyString = "";SqlConnection MyConnection = new SqlConnection(System.Configuration.ConfigurationMa nager.ConnectionStrings["Connection_String"].ConnectionString);SqlCommand myCommand = null;SqlDataReader myReader = null;try{MyConnection.Open();MyString = "SELECT AdFileName FROM tblContentRef WHERE Station_ID = '" + Station_ID + "' AND ContentFileName = '" + ContentFileName + "'";myCommand = new SqlCommand(MyString, MyConnection);myCommand.CommandTimeout = 60;myReader = myCommand.ExecuteReader();if (myReader.Read()) {AdFileName = myReader["AdFileName"].ToString();} }catch (Exception e){Response.Write("Error 2: " + e.Message + ".<br><br>Please email abc@abc.com.<br><br>Thank you.");} finally{if (myReader != null){myReader.Close();}}if (AdFileName != ""){AdFileName = "'" + AdFileName.Replace("'", "''") + "'";AdFileNameClause = "AdFileName = " + AdFileName;}else{AdFileName = "NULL";AdFileNameClause = "AdFileName IS NULL";}InsertDetailsLogTable(Station_ID, ContentFileName, AdFileName, FileSize, IP, MyConnection);SqlDataReader myReader2 = null;SqlCommand myCommand2 = null;bool Readable = false;try{MyString = "SELECT DownloadCount, TotalFileSize, DownloadDate FROM tblSummaryLog (UPDLOCK) WHERE Station_ID = '" + Station_ID + "' AND ContentFileName = '" + ContentFileName + "' AND " + AdFileNameClause + " ORDER BY DownloadDate DESC";myCommand2 = new SqlCommand(MyString, MyConnection);myCommand2.CommandTimeout = 60;myReader2 = myCommand2.ExecuteReader();if (myReader2.Read()){DownloadCount = myReader2["DownloadCount"].ToString();TotalFileSize = myReader2["TotalFileSize"].ToString();DownloadDate = myReader2["DownloadDate"].ToString();currentDate = DateTime.Now.ToString("M/d/yyyy");string[] inDate = DownloadDate.Split(new char[] { ' ' });tempDate = inDate[0];Readable = true;}if (myReader2 != null){myReader2.Close();} if (Readable){if (tempDate == currentDate){DownloadCount = Convert.ToString(Convert.ToInt32(DownloadCount) + 1);TotalFileSize = Convert.ToString(Convert.ToInt32(TotalFileSize) + Convert.ToInt32(FileSize));UpdateSummaryLogTable(DownloadCount, TotalFileSize, Station_ID, ContentFileName, AdFileNameClause, DownloadDate, MyConnection);}else{InsertSummaryLogTable(Station_ID, ContentFileName, AdFileName, FileSize, MyConnection);}}else{InsertSummaryLogTable(Station_ID, ContentFileName, AdFileName, FileSize, MyConnection);} }catch (Exception e){Response.Write("Error 3: " + e.Message + ".<br><br>Please email abc@abc.com.<br><br>Thank you.");}finally{ if (MyConnection != null){ MyConnection.Close();} }}private void InsertDetailsLogTable(string Station_ID, string ContentFileName, string AdFileName, string FileSize, string IP, SqlConnection MyConnection){string MyString = @"INSERT INTO tblDetailsLog ( Station_ID, ContentFileName, AdFileName, FileSize, IP, DateTime ) VALUES ( '" + Station_ID + "', '" + ContentFileName + "', " + AdFileName + ", '" + FileSize + "', '" + IP + "', getdate() )";try{ SqlCommand MyCmd = new SqlCommand(MyString, MyConnection);MyCmd.CommandTimeout = 60;MyCmd.ExecuteNonQuery(); }catch (Exception e){Response.Write("Error 4: " + e.Message + ".<br><br>Please email abc@abc.com.<br><br>Thank you.");}finally{} }private void UpdateSummaryLogTable(string DownloadCount, string TotalFileSize , string Station_ID , string ContentFileName , string AdFileNameClause, string DownloadDate, SqlConnection MyConnection){string MyString = @"UPDATE tblSummaryLog SET DownloadCount = '" + DownloadCount + "', TotalFileSize = '" + TotalFileSize + "', DownloadDate = getdate() WHERE Station_ID = '" + Station_ID + "' AND ContentFileName = '" + ContentFileName + "' AND " + AdFileNameClause + " AND (CONVERT(CHAR(19), DownloadDate) = CONVERT(CHAR(19), CAST('" + DownloadDate + "' AS datetime)))";try{ SqlCommand MyCmd = new SqlCommand(MyString, MyConnection); MyCmd.CommandTimeout = 60;MyCmd.ExecuteNonQuery(); }catch (Exception e){Response.Write("Error 5: " + e.Message + ".<br><br>Please email abc@abc.com.<br><br>Thank you.");}finally{} }private void InsertSummaryLogTable(string Station_ID , string ContentFileName , string AdFileName , string TotalFileSize, SqlConnection MyConnection){string MyString = @"INSERT INTO tblSummaryLog ( Station_ID, ContentFileName, AdFileName, DownloadCount, TotalFileSize, DownloadDate ) VALUES ( '" + Station_ID + "', '" + ContentFileName + "', " + AdFileName + ", '1', '" + TotalFileSize + "', getdate() )";try{ SqlCommand MyCmd = new SqlCommand(MyString, MyConnection);MyCmd.CommandTimeout = 60;MyCmd.ExecuteNonQuery();}catch (Exception e){Response.Write("Error 6: " + e.Message + ".<br><br>Please email abc@abc.com.<br><br>Thank you.");}finally{} }
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Jul 9, 2005
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.
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May 7, 2001
SQL 7.0
Hi All
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
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Jul 27, 2000
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?
All help is appreciated.
Thanks
Brett
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May 12, 2000
How can I reproduce a deadlock in 7.0?
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Nov 4, 2002
Hi,
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.
Deadlock encountered .... Printing deadlock information
2002-11-04 14:34:26.33 spid4
2002-11-04 14:34:26.33 spid4 Wait-for graph
2002-11-04 14:34:26.33 spid4
2002-11-04 14:34:26.33 spid4 Node:1
2002-11-04 14:34:26.33 spid4 KEY: 11:1205683443:11 (da00d1f77328) CleanCnt:1 Mode: X Flags: 0x0
2002-11-04 14:34:26.33 spid4 Grant List::
2002-11-04 14:34:26.33 spid4 Owner:0x2ffa89c0 Mode: X Flg:0x0 Ref:0 Life:02000000 SPID:179 ECID:0
2002-11-04 14:34:26.33 spid4 SPID: 179 ECID: 0 Statement Type: SELECT INTO Line #: 44
2002-11-04 14:34:26.33 spid4 Input Buf: Language Event: EXEC dbo.PROC_RVM_CALCULATE 22567, 'centreAVashista'
2002-11-04 14:34:26.33 spid4 Requested By:
2002-11-04 14:34:26.33 spid4 ResType:LockOwner Stype:'OR' Mode: S SPID:166 ECID:0 Ec:(0x6f02568) Value:0x85146480 Cost:(0/14E0)
2002-11-04 14:34:26.33 spid4
2002-11-04 14:34:26.33 spid4 Node:2
2002-11-04 14:34:26.33 spid4 KEY: 11:1205683443:11 (df001773794a) CleanCnt:1 Mode: X Flags: 0x0
2002-11-04 14:34:26.33 spid4 Grant List::
2002-11-04 14:34:26.33 spid4 Owner:0x85147ee0 Mode: X Flg:0x0 Ref:0 Life:02000000 SPID:166 ECID:0
2002-11-04 14:34:26.33 spid4 SPID: 166 ECID: 0 Statement Type: SELECT INTO Line #: 44
2002-11-04 14:34:26.33 spid4 Input Buf: Language Event: EXEC dbo.PROC_RVM_CALCULATE 22562, 'centreJTtest4'
2002-11-04 14:34:26.33 spid4 Requested By:
2002-11-04 14:34:26.33 spid4 ResType:LockOwner Stype:'OR' Mode: S SPID:179 ECID:0 Ec:(0x7dd0568) Value:0x3a24f920 Cost:(0/39BC)
2002-11-04 14:34:26.33 spid4 Victim Resource Owner:
2002-11-04 14:34:26.33 spid4 ResType:LockOwner Stype:'OR' Mode: S SPID:166 ECID:0 Ec:(0x6f02568) Value:0x85146480 Cost:(0/14E0)
Any pointer is much appreciated.
Thanks
Shailesh
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Dec 10, 1999
Help !!
How would you handle the deadlocks that happen often? Since the victim users complained about the disconnection.
Thank you ahead of time
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Apr 27, 2004
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
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Aug 4, 1999
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) ?
Herve Meftah
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