Configuring Locks In Awe System
Jul 20, 2005
I am running Microsoft SQL Server 2000 - 8.00.760 Enterprise Edition
on Windows 2003 Enterprise Edition (NT 5.2 Build 3790:) I have 4CPU
and 8GB of RAM. I have AWE enabled, /pae /3gb switch is on in
boot.ini, In my errorlog I have noticed few times error messages as
"The SQL Server cannot obtain a LOCK resource at this time. Rerun your
statement when there are fewer active users or ask the system
administrator to check the SQL Server lock and memory configuration..
" I haven't modified anything in sp_configure 'locks', so i am
assuming SQL server is dynamically managing the lock memory. Running
perfmon for few days I observed that Lock Requests/sec are usually few
100,000 most of the times and sometimes goes to 2+ million. However I
haven't seen Lock Memory (KB) going more than 40MB. So i wonder why am
I seeing the Error: 1204 in my sql log ? And any advise on how to
prevent it.
Thanks
Aswinee
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Mar 2, 2006
Hi all,
Need some help with configuring the Disk Sub system using Raid 10
1. What shud be the disk configuration to have 4000 inserts per second on a RAID 1+0 ?
2. What is the best way to maintain a Hot Stand by Server for a very high OLTP system ( say for a day Trading Database ).
Thx
Venu
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Jul 16, 2015
I've got an INSERT that's selecting data from a linked server and attempting to push 10 million rows into the blank table. More or less, it looks like this:
insert into ReceivingTable (
Field1, Field2, Field3, Field4
, Field5, Field6, Field7, Field8
, Field9, Field10, Field11, Field12
, Field13, Field14, Field15
[code]...
The instance of the SQL Server Database Engine cannot obtain a LOCK resource at this time. Rerun your statement when there are fewer active users. Ask the database administrator to check the lock and memory configuration for this instance, or to check for long-running transactions. There are no other active users. I ran it again and monitored the following DMO to watch the growth of locks for that spid:
SELECT request_session_id, COUNT (*) num_locks
-- select *
FROM sys.dm_tran_locks
--where request_session_id = 77
GROUP BY request_session_id
ORDER BY count (*) DESC
The number of locks started small and held for a while around 4-7 locks, but at about 5 minutes in the number of locks held by that spid grew dramatically to more than 8 million before finally erroring again with the same message. Researching, I can't figure out why it's not escalating from row locks to table locks at the appropriate threshold. The threshold in was set to 0 at first (Server Properties > Advanced > Parallelism > Locks). I set it to 5000, and it still didn't seem to work. Rewriting the INSERT to include a WITH (TABLOCK) allows it to finish successfully in testing. My problem is that it's coming out of an ETL with source code that I can't edit. I need to figure out how to force it to escalate to locking the entire table via table or server level settings.
A colleague suggested that installing service packs may take care of it (the client is running SQL Server 2008 R2 (RTM)), but I haven't found anything online to support that theory.
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Aug 5, 2015
We are migrating our database(s) from ORACLE to SQL. In Oracle we were able to issue a SELECT statement and see all of the locks (Blocking and Non-Blocking) currently in the system. The query also included the Process ID of the process we needed to kill in order to get rid of the lock.
We now need to create the same type of query for Microsoft SQL Server 2012. I have seen postings on different sites saying that this info can be obtained using SP_WHO2 or using the SQL Server Management Studio Activity Monitor's PROCESSES tab, but we are looking for a SELECT statement that will give us similar information.
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Aug 21, 2006
I have created a windows library control that accesses a local sql database
I tried the following strings for connecting
Dim connectionString As String = "Data Source=localhostSQLEXPRESS;Initial Catalog=TimeSheet;Trusted_Connection = true"
Dim connectionString As String = "Data Source=localhostSQLEXPRESS;Initial Catalog=TimeSheet;Integrated Security=SSPI"
I am not running the webpage in a virtual directory but in
C:Inetpubwwwrootusercontrol
and I have a simple index.html that tries to read from an sql db but throws
the error
System.Security.SecurityException: Request for the permission of type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
at System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet)
at System.Security.PermissionSet.Demand()
at System.Data.Common.DbConnectionOptions.DemandPermission()
at System.Data.SqlClient.SqlConnection.PermissionDemand()
at System.Data.SqlClient.SqlConnectionFactory.PermissionDemand(DbConnection outerConnection)
at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection,
etc etc
The action that failed was:
Demand
The type of the first permission that failed was:
System.Data.SqlClient.SqlClientPermission
The Zone of the assembly that failed was:
Trusted
I looked into the .net config utility but it says unrestricted and I tried adding it to the trusted internet zones in ie options security
I think that a windows form connecting to a sql database running in a webpage should be simple
to configure what am I missing?
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Mar 21, 2007
Reporting services is configured to use a custom security extension in the following Environment.
Windows xp
IIS 5.0
when i go to http://servername/reports , the UIlogon.aspx page loads fine and i enter username and password. but i get logon failed.
when i go to http://servername/reportserver , the logon.aspx does not load and i get the following error message :
"Request for the permission of type 'System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed."
any idea ? .
chi
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Apr 3, 2007
Ok guys, I am trying to install Sql server 2005 on Vista but I am still stuck with this warning message in the System Configuration Check during Sql server 2K5 installation :
SQL Server Edition Operating System Compatibility (Warning)
Messages
* SQL Server Edition Operating System Compatibility
* Some components of this edition of SQL Server are not supported on this operating system. For details, see 'Hardware and Software Requirements for Installing SQL Server 2005' in Microsoft SQL Server Books Online.
Now, I know I need to install SP2 but how the hell I am going to install SP2 if Sql server 2005 doesn't install any of the components including Sql server Database services, Analysus services, Reporting integration services( only the workstation component is available for installation)?
Any work around for this issue?
P.S.: I didn't install VS.NET 2005 yet, can this solve the problem?
Thanks.
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Jan 29, 2007
Hello!
Hopefully someone can help me.
I have scripts to refresh database as SQL daily jobs. (O.S is Win2K3 and SQL server 2000 and SP4) It was worked and I got the following message this morning from SQL error log.
Internal I/O request 0x5FDA3C50: Op: Read, pBuffer: 0x0D860000, Size: 65536, Position: 25534864896, RetryCount: 10, UMS: Internal: 0x483099C8, InternalHigh: 0x0, Offset: 0xF1FF1E00, OffsetHigh: 0x5, m_buf: 0x0D860000, m_len: 65536, m_actualBytes: 0, m_errcode: 1450, BackupFile: \XAPROD12MASTERXAPRODXAPROD_db_200701290000.BAK
BackupMedium::ReportIoError: read failure on backup device '\XAPROD12MASTERXAPRODXAPROD_db_200701290000.BAK'. Operating system error 1450(Insufficient system resources exist to complete the requested service.).
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Jul 20, 2005
Hi All,I use Bulk insert to put data to myTable.When the SQL server is in local machin, it works well. But when I putthe data in a sql server situated not locally, then I get a errormessage like this:Could not bulk insert because file 'C:Data2003txtfilesabif_20031130.txt' could not be opened. Operating systemerror code 3(The system cannot find the path specified.).BULK INSERT myTableFROM 'C:Data2003 txtfilesabif_20031130.txt'with (-- codepage = ' + char(39) + 'ACP' + char(39) + ',fieldterminator = ';',rowterminator = '',keepnulls,maxerrors=0)Someone can explan me what the error shows upThanks in advance- Loi -
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Jul 5, 2007
Hello,
I am getting the following error from my SqlClr proc. I am using a third party API, which is making call to some webservice.
System.InvalidOperationException: There is an error in XML document (11, 2). ---> System.ArgumentException: Item has already been added. Key in dictionary: 'urn:iControl:Common.ULong64' Key being added: 'urn:iControl:Common.ULong64'
System.ArgumentException:
at System.Collections.Hashtable.Insert(Object key, Object nvalue, Boolean add)
at System.Collections.Hashtable.Add(Object key, Object value)
at System.Xml.Serialization.XmlSerializationReader.AddReadCallback(String name, String ns, Type type, XmlSerializationReadCallback read)
at Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationReader1.InitCallbacks()
at System.Xml.Serialization.XmlSerializationReader.ReadReferencingElement(String name, String ns, Boolean elementCanBeType, String& fixupReference)
at System.Xml.Serialization.XmlSerializationReader.ReadReferencingElement(String name, String ns, String& fixupReference)
at Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationReader1.Read5926_get_failover_stateResponse()
at Microsoft.Xml.Serialization.GeneratedAssembly.ArrayOfObjectSerializer8221.Deserialize(XmlSerializationReader reader)
at System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader, String encodingStyle, Xml
...
System.InvalidOperationException:
at System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader, String encodingStyle, XmlDeserializationEvents events)
at System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader, String encodingStyle)
at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall)
at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
at iControl.SystemFailover.get_failover_state()
at F5CacheManager.GetActiveLBIPaddress()
Found a similar problem in a different thread, but couldn't find any solution. I was wondering if there is an open case for this issue?
https://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=398142&SiteID=1
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Oct 30, 1998
Dear all
Problem and symptoms
We have recently added 1GB Ram to our systems and now we are trying to optimally configure 2GB of RAM for SS6.5 SP4 and we are getting the fllowing error INFREQUENTLY
"Not enough memory for pss allocation"
We have to restart the SQL server/ (recover databases) to get out of this. Since it is a heavily loaded production environment you can imagine the impact!!.
SPECS
OS-- NT4/sp3
H/W -- Dual Processor Alpha 4100
MEM -- 2GB
SQL PArameters:
memory--819200
Worker Threads -- 255
Proc cache -- 12%
Work done so far
There is a recommendation to reduce the memory or stack size parameters ref:Q160683!!
Question
1. I would like to know if anyone has got around a similar problem, and how. 2. As in NT Virtual Memory Manager AUTOMATICALLY brokers the allocation of physical memory between the requesting applications (e.g. sqlsrvr.exe) and the page file and no application can write directly to RAM, what does the memory parameter in SQL config control? Also then how is the above KB article relevant?
I look forward to your response
Thanks and regards
Arun
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Nov 10, 2003
I have read that even during read procedures (sql select statements), sql server uses row locking. I know that you can use the NOLOCK keyword, but if you don't everytime that a user makes a selects statement on a table, does sql server really lock those rows, and if so are they then unavailable to another user who wants to make a select statement at the same time on that same table? That does not seem like it would be the case otherwise it would not scale well. Thanks for any clarification on this.
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Feb 13, 2002
I am using SQL Server7.0. I opened a table through the Enterprise Manager and left it open. In the Query Analyzer when I try to update a field on that table(more than 2000 rows), it goes on running. When I watched the Current Activity, it shows that the update process is being blocked by the select query. But if I try to update the same column for less than 1500 rows, there is no blocking issue and the update occurs immediately. Can anybody let me know why this is happening and what should I do to prevent it?
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Mar 28, 2000
I am using Sql Server 7.0
To I got the following error message. Can some one tell how to solve this issue.
Server: Msg 1204, Level 19, State 1, Procedure OPEN_OBJECTS, Line 2
SQL Server has run out of LOCKS. Rerun your statement when there are fewer active users, or ask the system administrator to reconfigure SQL Server with more LOCKS.
ranga.
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Sep 26, 2000
what the best way to control locks, if inserting couple thousands records from one table to another.
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Feb 20, 2001
Hi
I have a big query which updates around 14000 rows at a time if i place a lock on the table and others try to update the same table is it possible to let them know that table is locked by someone else.
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Sep 19, 2002
2 quick questions :
1) How do I keep multiple users from editing the same record without locking the entire table? What would be a 'standard' way of handling this?
2) How do I keep 2 people from posting the same record?
Please help me understand locking, THANKS!!!
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Apr 11, 2005
I have a stored proc which will be entering/updating a record into a table. The table's key is an integer field which I may have to increment by one. I know I can use
declare @nextid int
set @netxid = max(id) from table
insert @nextid into table
Is some kind of lock the best way to approach this?
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Jun 15, 2004
Hello,
I have a problem in SQLSERVER 2000, when I execute a Query, the table get locked for insert or any other transaction, even for other queries.
Does SQL Server have a kind of lock mode different of Oracle ?
How do I solve this problem ??
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Jun 16, 2004
Hello There !!
I have a very big problem, with SQL SERVER 2000. I want to know about the locks with select.
When I execute a Select (so big), and I try to update or Insert into one of the tables that I invoke in the select, I get locked.
Is there in SQL Server, something like a Select for update, that could be causing the problem ???
Is there any way to select rows from a table without locking it ?
I really have a big problem with this, and I don't know so much about sql server !
Thank you so much !!!
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Jul 1, 2004
Some of my tables Were locked IN IS Mode.What does it mean?
Thanks.
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Jul 1, 2004
I Have 359 locks on MY Database ,They are always there on my DB.The DB is a development database and lots of summary Stored procedures will be running on this DB.
Does it effect the performance.How can I remove those locks.
Thanks.
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Jan 13, 2004
Hi All,
Sql server 7
pls provide me sql statement that shows all the locks. the goal is to produce the output on an HTML page.
pls help me in solving this
TIA
Adil
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Apr 18, 2007
Hi
I want to write all my select ststements using locks
how i should write a select ststement using locks
i searched for examples but iam not getting the syntax
Plz give me one example for select statements using locks
thanks in advance
Malathi Rao
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Jan 7, 2008
if have a transaction with statments like
begin
insert into table A ...where exists (select .. from table A)
transaction
What locks will be placed while inserting and selecting rows,if multiple users are accessing this concurrently
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Jul 20, 2005
Hi,I have a few things on my databases which seem to be neither true systemobjects or user objects - notably a table called 'dtproperties' (createdby Enterprise manager as I understand, relating to relationship graphingor something) and some stored procs begining with "dt_" (some kind ofsource control stuff, possible visual studio related). These show up whenI use"exec sp_help 'databaseName'"but not in Ent. Mgr. or in Query Analyzer's object browser, and also notin a third party tool I use called AdeptSQL. I am wondering how thosetools know to differentiate between these types of quasi-system objects,and my real user data. (This is for the purpose of a customized schemagenerator I am writing). I'd prefer to determine this info with systemstored procs (ie sp_help, sp_helptex, sp_...etc) but will dip into thesystem tables if needed.Thanks,Dave
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Apr 25, 2007
Hi all,
I have a question regarding SQL caching.
I want to use SQL caching for my pages.I've gone through http://msdn2.microsoft.com/en-us/library/e3w8402y(VS.80).aspx article on msdn, where in step by step procedure is explained for this. But I have a slightly different situation. In the article, we need to configure our application from web.config by following...
<!-- caching section group --><caching> <sqlCacheDependency enabled = "true" pollTime = "1000" > <databases> <add name="Northwind" connectionStringName="NorthwindConnectionString1" pollTime = "1000" /> </databases> </sqlCacheDependency></caching>
Where in "NorthwindConnectionString1" is the SQLdatasource connection string. But I'm not using SQLDatasource, and have my own classes to build a connection datasource and get a dataset, and then bind it to my control.So in this case what should I write for the above "connectionstring" attribute. My connection string is in web.config only with a section defined. and in my application i'm reading from web.fing only.The connection section i'm using is as follows...
<ConnSettings>
<add key="ConnString" value="server=serverName;database=dbName;uid=dbuser;Pwd=password"/>
</ConnSettings>
I want to know how to configure my sql cache in this situation.
Thanks,
Mehul Mistry
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May 29, 2008
Hi
When I try to configure a SQL datasource and I use a Microsoft SQL Server datasource I get a blank drop down list for server name. My aspnetdb is available in SQL Server 2005 and I can log into it through management studio, and the service is started. I am also using Vista Ultimate.
Is there any other configuration I need to do for Visual Studio 2008 to see the SQL Server instance?
Thanks
Kwis
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Jun 18, 2001
Hi all,
I want to configure my SQL mail. I am able to configure SQL mail when i run the SQLAgent and SQL Server services under domain account for which Mail box was created in MS Exchange server. Also it works fine. But i want to Configure SQL mail without using Domain account (dont want to run services under domain account due to security reasons).
Anybody know how to Configure SQL mail without using domain account or is it possible to configure like that? Your suggestions are highly appreciated.
thanks in advance.
regards..
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Apr 4, 2008
Hi All,
I am fairly new to SSRS. I want to install SSRS on my local system which has OS of Win XP sp2 (not a server). I have installed SQL Server instance on this box. Can any body tell if i need Win Server 2000 or 2003 OS to install SSRS or can i use Win XP, if so please give some guidelines.
Thank's in advance..
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Sep 26, 2007
I new to SQL 2005 and have couple of questions regarding configuring the user. Let me start by saying what I need to be achieved.
1. Create a new user which will be user by couple of people to create and execute stored procedures
2. Deny all permissions for this user to access data from certain tables.
3. Configure the role and permissions for this user so that the above two is possible.
I was able to do the first two steps and when the users uses a query, ( select * from 'that table' ) the result in a permissions error. Also that user cannot view the table in SQL manager
The problem now is that that user can create a stored procedure that has the SQL statement Select * from 'that table' and execute the stored procedure to view the table.
The reason I created this user is to allow a team in the company to create stored procedures for Crystal. In theory he should be able to create stored procedures but not get any data from the denied tables. How can I achieve this?
I am trying to resolve this issue for a while now and any help is greatly appreciated.
Regards,
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Aug 4, 2005
Hi All,My question is that can I configure SQL MAIL, if my EXCHANGESERVER is on different domain and my SQL is running on differentdomain.Can anyone guide me for this because I googled a lotwithout any result.I am using SQL SERVER 2000 Enterprise Edition with service pack 3.and MICROSOFT EXCHANGE SERVER 2000.ThanksT.V
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Jan 7, 2008
Can someone help? I am new to Visual basic programming and have down-loaded Visual Basic Express. I followed the instructions for creating my first database but when I got to making the SQL database I got the following error message. " Generating user instances in SQL server is disabled, use sp_configure "user instances enabled" to generate user instances" Where do I find sp_configure and how do I start it.
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