SQL 2012 :: Blocking In Report Server Database And Changing Isolation Levels?
Oct 12, 2015We are getting frequently blocking in Report server database.
Is it ok to change isolation level to RCSI for report server database?
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Transaction Isolation Levels
Feb 15, 2006I am redesigning an application that distributes heldesk tickets to our50 engineers automatically. When the engineer logs into their window astored procedure executes that searches through all open tickets andassigns a predetermined amount of the open tickets to that engineer.Theproblem I am running into is that if 2 or more engineers log in at thesame time the stored procedure will distribute the same set of ticketsmultiple times.Originally this was fixed by "reworking" the way SQL Server handlestransactions. The original developer wrote his code like this:-----DECLARE @RET_STAT INTSELECT 'X' INTO #TEMPBEGIN TRANUPDATE #TEMP SET 'X' = 'Y'SELECT TOP 1 @TICKET_# =TICKET_NUMBER FROM TICKETS WHERE STATUS = 'O'EXEC @RET_STAT = USP_MOVE2QUEUE @TICKET_#, @USERIDIF @RET_STAT <> 0ROLLBACK TRANRETURN @RET_STATENDCOMMIT TRAN-----The UPDATE of the #TEMP table forces the transaction to kick off andlocks the row in table TICKETS until the entire transaction hascompleted.I would like to get rid of the #TEMP table and start using isolationlevels, but I am unsure which isolation level would continue to lockthe selected data and not allow anyone else access. Do I need acombination of isolation level and "WITH (ROWLOCK)"?Additionally, the TICKETS table is used throughout the application andI cannot exclusively lock the entire table just for the distributionprocess. It is VERY high I/O!Thanks for the help.
View 3 Replies View RelatedLocks - Isolation Levels
May 22, 2006Good morning,
I am trying to get my head around locking (row, table) and Isolation Levels. We have written a large .NET/SQL application and one day last week we had about two dozen people in our company do some semi "stress/load" testing of the app.
On quite a few occassions, a few of the users would receive the following error:
"Transaction (Process ID xx) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction."
We are handling this on two fronts, the app and the database. The error handling in the app is being modified to capture this specific error and to retry the transaction.
However, from the database side, I am trying to find the most affective and efficient change to make regarding locking. I have been doing a lot of reading online and in BOL to get a better grasp of locking, but what I would really like is feedback from the community (forum) and get your thoughts on what changes I should make, if any, on the db side.
Thanks...
Scott
SQL 2012 :: Blocking In Report Server TempDB
Sep 21, 2015I am seeing select * from sys.sysprocess where blocked<>0 is always the report server
ReportServer.dbo.GetSessionData;1 is blocked by ReportServer.dbo.WriteLockSession;1
We have different reporting servers using same database.
Is it require to rebuild indexes on report server and report server temp db on daily basis?
SQL 2012 :: Blocking Frequently Report Server TempDB
Aug 27, 2015How to solve the below blocking issue
One of our production server is configured with Always on with sql cluster.
We are getting frequently blocking
Waiting Resource Key Type: Key
WaitType: LCK_M_S
WaitResourceDatabaseName : ReportServerTempDB
WaitingSessionProgramName: Report Server
BlockingSessionProgramName: Report Server
WaitCommandType: Select
WaitingCommandText: Create Procedure dbo.checksessionLoak @sessionID...
Question About Transaction Locks And Isolation Levels
Oct 27, 2005Have the need for going to a table to get an identity value. This is for updating an existing database, blah blah blah. Here is the schema of the table we are using:CREATE TABLE [TableIdentityValue] ( [TableName] [varchar] (50) , [NextNegativeIdentity] [int] NOT NULL , [NextPositiveIdentity] [int] NOT NULL , CONSTRAINT [PK_TableIdentityValue] PRIMARY KEY CLUSTERED ( [TableName] ) ON [PRIMARY] ) ON [PRIMARY]GO
Now, depending on the type of data we are inserting into a table, we need to get either a negative or positive number for the PK. There are two sprocs that control the obtaining of those values:CREATE PROCEDURE GetNegativeIdentity @tableName varchar(50)AS DECLARE @nextNegativeIdentityValue int
BEGIN TRANSACTION SET TRANSACTION ISOLATION LEVEL SERIALIZABLE
SET @nextNegativeIdentityValue = ( SELECT NextNegativeIdentity FROM TableIdentityValue WITH (ROWLOCK) WHERE TableName = @tableName )
UPDATE TableIdentityValue SET NextNegativeIdentity = @nextNegativeIdentityValue - 1 WHERE TableName = @tableName
COMMIT TRANSACTION RETURN @nextNegativeIdentityValueGOCREATE PROCEDURE GetPositiveIdentity @tableName varchar(50)AS DECLARE @nextPositiveIdentityValue int
BEGIN TRANSACTION SET TRANSACTION ISOLATION LEVEL SERIALIZABLE
SET @nextPositiveIdentityValue = ( SELECT NextPositiveIdentity FROM TableIdentityValue WHERE TableName = @tableName )
UPDATE TableIdentityValue SET NextPositiveIdentity = @nextPositiveIdentityValue + 1 WHERE TableName = @tableName
COMMIT TRANSACTION RETURN @nextPositiveIdentityValueGOSo, the thing is, we need the read and update of the value from the specific TableIdentityValue row to be atomic - we don't want anyone else reading or modifying that data. The problem is knowing which level of isolation to use and/or locking, and how to implement that. I have tried a few different things that seemed to make sense, like placing a ROWLOCK on the SELECT statement, but is that lock going to hold for the entire length of the transaction? Also, I read that using some of the lock hints can be accomplished in the sense that some isolation levels are the same as some lock hints (e.g. setting isolation level to SERIALIZABLE "has the same effect as setting HOLDLOCK on all tables in all SELECT statements in a transaction" according to SQL Books Online.Any help is appreciated!
SQL Server 2008 :: Changing Isolation Level
Apr 30, 2015We are using sql 2008r2 standard edition.One of our Production database is using default isolation Readcommitted.The transactions also using read committed. But we want change isolation level to read comitted snapshot isolation and test it to avoid deadlocks.
Is it possible to set in the transaction level for some queries or do we need to change entire database isolation level by using alter database "ALTER DATABASE AdventureWorks2008R2 SET READ_COMMITTED_SNAPSHOT ON"
Moving A Database Between Two SQL Server With Different Patch Levels
Jul 20, 2005Hi,I need to move a database from an instance running SQL Server 2000 SP3to another running SQL Server 2000 SP2. Can I just use backup/restoreor detach/reattach and let SQL server take care of any downgrading (ifany).Many thanksGiovanni
View 4 Replies View RelatedSQL Server 2012 :: Data Grouping On 2 Levels But Only Returning Conditional Data
May 7, 2014I think I am definitely thrashing and am not getting anywhere on something I think should be pretty simple to accomplish: I need to pull the total amounts for compartments with different products which are under the same manifest and the same document number conditionally based on if the document types are "Starting" or "Ending" but the values come from the "Adjust" records.
So here is the DDL, sample data, and the ideal return rows
CREATE TABLE #InvLogData
(
Id BIGINT, --is actually an identity column
Manifest_Id BIGINT,
Doc_Num BIGINT,
Doc_Type CHAR(1), -- S = Starting, E = Ending, A = Adjust
Compart_Id TINYINT,
[Code] ....
I have tried a combination of the below statements but I keep coming back to not being able to actually grab the correct rows.
SELECT DISTINCT(column X)
FROM #InvLogData
GROUP BY X
HAVING COUNT(DISTINCT X) > 1
One further minor problem: I need to make this a set-based solution. This table grows by a couple hundred thousand rows a week, a co-worker suggested using a <shudder/> cursor to do the work but it would never be performant.
SQL 2012 :: Transaction Isolation Level And Distributed Transactions
Mar 5, 2015I vaguely remember reading somewhere that all distributed transactions are executed at Serializable Isolation Level "under the covers."
1. Is this true?
2. What does "under the covers" mean in this case; i.e. will I not see the isolation level represented accurately in requests?
Changing Server Report On The Fly
Mar 21, 2007I would like to modify some of the properties of a ServerReport entity from a desktop app using the ReportViewer control. In particular, I would like to have the document map displayed as expanded, and make some changes to the group toggle items based on the user's parameter selection.
Can someone please point me in the right direction? How do I get access programmatically to the ServerReport layout?
Thx
SQL 2012 :: Blocking During Bulk Inserts?
Dec 9, 2014We are noticing a lot of blocking when performing bulk inserts.
Sometimes the lead blocker(s) are blocking inserts into the same tables, but most of the time, it's insert to other tables. So, while bulk insert into table X is running, bulk insert into table Y is blocked from the insert into X.
- We turned off transactions from the application performing the bulk inserts - no change.
- We enabled table locking from the application - no change
- We enabled lock_on_bulk_load on the tables - this seems to have worked; however still see some blocking.
According to the lock_on_bulk article - When you specify table locking for a bulk import operation, a bulk update (BU) lock is taken on the table for the duration of the bulk-import operation, shouldn't we be seeing this BU lock? Instead, we see nothing but LCK_M_X (exclusive table locks).
Just found out that in order get a BU lock, no indexing can exist on the table ... sure be nice if that was in the article!
Also, we saw the exclusive locks happening before we made these changes, meaning it wasn't using the row locks that it should be by default. Assuming we're missing something here with lock escalation. I am profiling just for lock escalation, and it never happens ...
So I guess my pending question at this time is that why when inserting into table X do inserts into table Y get blocked?
Sp_executesql And Database Compatibility Levels
Apr 15, 2003I have captured some trace output for performance evaluation for an application which has just been upgraded. Originally, this application can only run with database compatible 70.
So, after we have switched this level from 70 to 80, I noticed that all T-SQL statements which executed thru the use of "sp_executesql" have much higher IO usuage. The usage increased from approximately 50 I/O to approximately 12000 I/O. When I reviewed the profiler output, I noticed that all select statements which executed thru this "sp_executesql" statements performed "index scan".
When I switch back to run with database compatibility level 70, my profiler output shows that all these "sp_executesql" statements performed "index seek".
All these statements use the same unique non-clustered index.
Is it a SQL Server bug? Does anyone know which service pack or hot fix address this problem?
Thanks...byyu :)
SQL 2012 :: Set Statistics XM Off - Blocking From Using Object Explorer
Jul 9, 2014Seen activity like this? If so, where does it come from?
dd hh:mm:ss.mss:00 00:18:32.210
session_id:79
login_name:meme
wait_info:(6ms)IO_COMPLETION
CPU:646,180
tempdb_allocations:2,088
tempdb_current:0
blocking_session_id:NULL
reads:171,237,095
writes1,439,934
physical_reads:637,080
used_memory:2
status:rollback
SQL 2012 :: Blocking Alerts Using Event Notifications?
Nov 28, 2014I created a Blocking Event Notification following this article ->[URL=
How do I throttle the alerts so that I only receive one alert per hour instead of 1000?
SQL 2012 :: Moving SRS To A New Server And Changing Data Sources?
Jun 18, 2014I have a project where I am creating a test environment. My objective is to give the client staff a set of instructions to follow to make sure the test mirrors production. I have migrated the SRS databases over to the new test server. All of the reports are there as is the security but where I run into an issue is the data sources for SRS. They are all pointed at the production servers. Is there an easy way to make the change possibly using a SQL update statement or exporting all the reports to XML and doing a find and replace. The shared data sources I went through manually and changed but there were 40 data sources. Now I realized some of the reports have embedded data connections. There are hundreds of reports to go through.
View 5 Replies View RelatedSQL 2012 :: Track Blocking Details At A Specific Time?
May 28, 2015In sql 2012 i want to track the blocking details at a specific time is any query to get the data ?
View 6 Replies View RelatedTransact SQL :: Fragmentation Levels Of All The Clustered Column-store Indexes In A Database?
Sep 18, 2015I have a database in which I have some tables in which I have implemented Clustered columnstore Index. How to find the fragmentation levels of all these indexes via a single T-SQl script
View 3 Replies View RelatedSQL 2012 :: Script To Find Out Blocked Sessions And Send Email Whenever It Finds Blocking
Feb 20, 2014I want to implement a script which will run continuously to find out blocked sessions and send an email when ever it finds the blocking.
View 5 Replies View RelatedSQL 2012 :: Sleeping Queries Blocking Rebuild Index And Update Statistics Job In AlwaysOn
Feb 3, 2015At one of your client sides we have configured Always on with synchronous mode.Also we have schedule rebuild index and update statistics job which runs in night every alternate day. the issue is there are more then 100 sleeping queries which is blocking update statistics job.
I have to stop update statistics job manually once i come to office manually.
Once I have killed blocking sleeping query but then other sleeping query blocked it and so on.
This Feature Remote Access To Report Data Sources And/or The Report Server Database Is Not Supported In This Edition Of Report
Jun 16, 2006SQL server 2005 express reporting problem.
error message:
This feature "remote access to report data sources and/or the report server database" is not supported in this edition of reporting service
I got this error message when I try to connect to database hosted in another PC running SQL server 2000.
Is it true that SQlL server Express can only use Local Database Engine to host the database?
SQL 2012 :: Database Consistency Report
Apr 4, 2014I ran the database consistency on 2 databases, the first little used (and relatively new), the other much more active. On the little used db the report didn't return any lines. On the much more active DB it returned 6 lines (one each for the last 6 days). They all reported 0 errors. Should I be concerned that the one database is actually reporting information, even if it appears to tell me "all clear"?
View 8 Replies View RelatedSecurity Levels Of CLR Code When Deployed To Another Server.
Mar 29, 2006Hi,
My question kind of covers a couple of areas.
I have written some SQL 05 CLR code that produces a single DLL file. I have specified that the code is 'Safe' e.g. it will not be carrying out any external assembly access or other file accesss.
The code simply contains some stored procedures that will update/instert etc data from the database.
The question is, how do I actually deploy the code to a a remote server? Do i simply take the DLL and use CREATE ASSEMBLY code to set it up?
Furthermore, are there any security issues i need to consider when i deploy the assembly given that I have already set up the security to be 'Safe' ? e.g. is there anyway that a database can be locked down so that CLR code would not run irrespective of the safe setting.
As far as I understand it, SQL CLR code is ran under the SQL Server service account, so does this mean that if this user is locked down the code would not run?
Any clarifications or extra info would be greatly appreciated.
Peds
SQL 2012 :: Migration From Access Database Completely To Query For A Report?
Jan 15, 2015we want to completely do away with access, on my report tool,which is crystal report, we want query to be our data source so , we do not want to use ssis packageor import from access to sql, how can l handle bringing all table and the query from Access together.
View 1 Replies View RelatedUsing Other Editions Of SQL Server For Report Data Sources And/or The Report Server Database Is Not Supported In This Edition Of Reporting Services
Sep 9, 2006Hi My project is in .NET 2003 i.e. framework 1.1 and database in SQLServer 2000. But the reports have been developed using SQLServer 2005 Reporting Services. Now when I am trying to deploy them through deployment project of .NET its giving me following error:"Using other editions of SQL Server for report data sources and/or the report server database" is not supported in this edition of Reporting Services. Now I am really confused with this. Can any one please guide me regarding this ASAP. Thanks, Falguni
View 4 Replies View RelatedThe Report Server Cannot Decrypt The Symmetric Key Used To Access Sensitive Or Encrypted Data In A Report Server Database
May 25, 2007
Hi every one,
I'm very new new at this. I'm try to deploy a report model and got this message. I have no idea what its going on about.
Can anyone help me?
Aku
------------------------------
System.Web.Services.Protocols.SoapException: The report server cannot decrypt the symmetric key used to access sensitive or encrypted data in a report server database. You must either restore a backup key or delete all encrypted content. Check the documentation for more information. (rsReportServerDisabled) ---> Microsoft.ReportingServices.Diagnostics.Utilities.RPCException: The report server cannot decrypt the symmetric key used to access sensitive or encrypted data in a report server database. You must either restore a backup key or delete all encrypted content. Check the documentation for more information. (rsReportServerDisabled) ---> System.Exception: The report server cannot decrypt the symmetric key used to access sensitive or encrypted data in a report server database. You must either restore a backup key or delete all encrypted content. Check the documentation for more information. (rsReportServerDisabled) ---> System.Exception: The report server cannot decrypt the symmetric key used to access sensitive or encrypted data in a report server database. You must either restore a backup key or delete all encrypted content. Check the documentation for more information. (rsReportServerDisabled) ---> System.Exception: The report server cannot decrypt the symmetric key used to access sensitive or encrypted data in a report server database. You must either restore a backup key or delete all encrypted content. Check the documentation for more information. (rsReportServerDisabled) ---> System.Exception: The report server cannot decrypt the symmetric key used to access sensitive or encrypted data in a report server database. You must either restore a backup key or delete all encrypted content. Check the documentation for more information. (rsReportServerDisabled) ---> System.Exception: Bad Data. (Exception from HRESULT: 0x80090005)
--- End of inner exception stack trace ---
--- End of inner exception stack trace ---
--- End of inner exception stack trace ---
--- End of inner exception stack trace ---
--- End of inner exception stack trace ---
at Microsoft.ReportingServices.Diagnostics.DataProtection.ProtectData(Byte[] unprotectedData, String tag)
at Microsoft.ReportingServices.Library.ConnectionManager.ConnectStorage()
at Microsoft.ReportingServices.Library.Storage.NewStandardSqlCommand(String storedProcedureName)
at Microsoft.ReportingServices.Library.DBInterface.GetAllConfigurationInfo()
at Microsoft.ReportingServices.Library.RSService.GetSystemProperties(Property[] requestedProperties)
at Microsoft.ReportingServices.WebServer.ReportingService.GetSystemProperties(Property[] Properties, Property[]& Values)
--- End of inner exception stack trace ---
at Microsoft.ReportingServices.WebServer.ReportingService.GetSystemProperties(Property[] Properties, Property[]& Values) (System.Web.Services)
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BUTTONS:
OK
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From Asp Classic && Asp.net To Access Database Changing To Sql Server
Dec 17, 2006Hello, We are re-writing our site in asp.net using sql server. Most of the site uses asp classic and it was to an access database. During the conversion we have everything working correct to SQL Server except for the asp.net connection string. There is an important part of the application using asp.net which works fine with our connection string to the access database. To recap our problem is the connection string from asp.net to sql server. This code works fine for the asp.net to access in the web.cnfg file </microsoft.web> <connectionStrings> <add name="SalesConnectionString" connectionString="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=E:inetpubvhosts hemarketingvp.comsubdomainsvphttpdocsfpdbsalesMain.mdb" providerName="System.Data.OleDb"/> <add name="ODBCSalesConnectionString" connectionString="DRIVER={Microsoft Access Driver (*.mdb)};DBQ=URL=E:inetpubvhosts hemarketingvp.comsubdomainsvphttpdocsfpdbsalesMain.mdb"/> <add name="RawConnectionString" connectionString="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=E:inetpubvhosts hemarketingvp.comsubdomainsvphttpdocsfpdbsalesMain.mdb" providerName="System.Data.OleDb"/> <add name="ConnectionString" connectionString="Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|inventoryStatus.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True" providerName="System.Data.SqlClient"/> </connectionStrings> <system.web> The code in the global.asa which works fine for classic asp to sql server also works fine and is as follows '--Project Data Connection Application("sales_ConnectionString") = "Driver={SQL Native Client};Server=DMSERVER01;Database=SQLsalesMain;UID=nTrack;PWD=nTrack2k3" Application("sales_ConnectionTimeout") = 15 Application("sales_CommandTimeout") = 30 Application("sales_CursorLocation") = 3 Application("sales_RuntimeUserName") = "" Application("sales_RuntimePassword") = "" Our programmer who set this up is out for a couple of weeks and I would appreciate any help in the correct connection string from asp.net to the sql server database in the web.cnfg file Thanks
View 5 Replies View RelatedChanging Master Database Location In Sql Server
Jul 10, 2007changing master database location in sql server 2000
HELLO PLEASE HELP ME I AM TRYING TO CHANGE THE LOCATION OF MASTER DATABASE ( MDF AND LDF ) AND ERRORLOG FILES I HAVE TRIED EDITING STARTUP PARAMETERS IN ENTERPRISE MANAGER I FAILED ,I TRIED IN COMMAND
PROMPT "SQLSERVR.EXE " I SUCCEEDED IN CHANGING THE DATA FILE AND ERROR LOG BUT UNABLE TO CHANGE THE LOG FILE PATH FROM DEFAULT LOCATION C:PROGRAM ............
TO D:DATA
PLEASE GIVE ME THE PROCESS TO CHANGE DATA ,LOG AND ERROR LOG FILES of master database
thanq in advance
RSConfig Vs Manually Changing Database Server And DB's.
Jun 6, 2007I am new to Reporting Services and need some advice. We have to move a Reporting Services' databases to a different machine. One MS doc says to use the Reporting Services Configuration Tool, and one doc says to use RSConfig.exe. Is there any reason to choose one over the other? What are the gotcha's?
Thanks
Event 107 Report Server Windows Service (MSSQLSERVER) Cannot Connect To The Report Server Database.
Dec 5, 2007every 1 hour my server's computer is restarting !
when the windows finish restarting i open the Event viewer and see that what coused it is the error :
"Report Server Windows Service (MSSQLSERVER) cannot connect to the report server database."
Event 107
source : "Report Server Windows Service (MSSQLSERVER)"
How can i solve it ?
Port Blocking Preventing Deployment Of SSE Database
Jan 27, 2007I am trying to deploy a SQL Server Express database to a remote SQL Server 2005 host. I was planning to copy and paste the data from my local tables to the remote tables using Management Studio Express but my ISP (NTL) appears to be blocking port 1433 and preventing me from getting a connection to the remote database.
Will an upgrade to SQL Server 2005 Developer Edition help me? I understand that it has a Backup & Restore Wizard but how does this work? Does it rely on a remote connection and will it fall foul of the NTL port blocking? Or, can the file that the Backup stage produces be copied into the web-based MSSQL Manager, that my web host provides, to restore to the remote database?
Any help would be much appreciated.
NETWORK IO Causing Database Hang And Blocking
Aug 12, 2015I've been put in charge of a SQL server recently and I'm completely new to maintaining SQL. For some reason several clients when they are doing their database processing I get network_io hangs and everything comes to a halt. I have to go in there and manually kill the SPID and everything continues where it left off.
SQL Setup
Server 2012 R2
SQL 2014 SP1
Dell 850
VM running in Hyper-V
50GB RAM
FusionIO Card
10GB Ethernet between clients and server
All workstations are pretty much
Windows 7/8.1
10GB
64+GB of RAM
Several CPUs
SSD and SATA hard drives
It's very hit or miss when this occurs as well, however, it's always the same NETWORK_IO cause.
I've read on the Internet about how the client keep up with what SQL is sending. Could this be poor programming or do I need to investigate my network setup?
Changing Database Collation Problem In SQL Server 2000
Mar 27, 2007Hello...
When I migrated data from one SQL Server to another I got collection problems because collation of the target server was different from the source one.
The best solution I thought about was to change collation of the database in target server to be equal to the server collation so that when a temporary table is created, and the collation used would be the server collation, no error would occur. All sounds logic, but, after I ran ALTER DATABASE command and changed the collation of the database, I verified that all varchar fields of all database tables retained the old collation, not the new database collation I set.
Is there any way to change the collation of all fields at once when I change the database collation?
Thanks for your help
Jaime