Memory Setting Right ?
Sep 12, 2006
I have a few questions about memory setting inherited
Windows 2003, SQL Server SP4, both Enterprise Edition 8 GB RAM
1. How to know how much Memory SQL can address ( SQL script is better
as there is no access to Perfmonitor or EM ) . ie what is maximum
memory SQL can use ?
2. In this server awe is set to 0 . Do I have to turn it to 1 so that
SQL can use all memory .
3. If awe is enabled, what is the minimum and maximum memory size need
to be set ?
4. Should I set max worker set also ?
If someone can provide examples of /PAE, /AWE. /3GB ,/USERVA etc , I am
grateful
Thanks
Srinivas
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Jul 20, 2005
I am using SQL 8 Personal edition with sp2 applied. I set the maxserver memory to 32MB and leave the min server memory at 0. When myapplication starts hitting the database hard the memory usage reportedthrough task manager peaks between 41-42MB. I've stopped and restartedthe MSSQLserver service and checked that the running values are what Iset them to be. Does anybody have any ideas as to why the sqlservr.exewould be utilizing more memory than the configured value?This message was posted some years ago but nobody answered. Now I havethe same problem! Does anybody have an explanation?Thanks a lot
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Nov 4, 2007
I need to up the Maximum Memory setting.
Out of the box it is set to 2147483647 MB.
I assume this is ~2GB. I have been instructed
to set it to 1GB less than total server memory
which is 16GB. When I change the value
it just changes back.
How do I change it and how are these Megabyte
numbers calculated?
OS: Windows 2003 R2 Enterprise
SQL: SQL Server 2005 Standard
Thanks!
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Feb 22, 2015
I have an issue with my production server regarding memory usage (Memory Utilization is above 95%.). Memory is : 12 GB and the service that is consuming the majority of memory 88%/10.5GB is sqlserver.exe. So it would appear that MSSQL is not set to restrict the amount of memory it uses ? How much should I set for min and max memory ? the defauld is min memory : 0 and max : 2 TB
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Dec 21, 2007
I am running SQL 2005 Standard under Windows 2003 Standard with 8 GB of RAM in one of our 64 bit servers; I noticed min server memory was set for some reason to 128 MB and max server memory to 6114 MB by the previous DBA. We plan to upgrade it to 32 GB. What is the best approach when changing those values ? Should I change those values to the defaults (0 - 2147483647) or create min and max boundaries? . This box is only utilzed by SQL.
Also I know that those changes are reconfigured dynamically so no need to reboot, but would this place any performance hit in the server and should I use Management studio or sp_configure ? (for some reason I don't trust Management studio for these type of changes :))
Thanks,
Carlos
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Nov 3, 2006
I have a client server that has win2000 on it with sql 2000 enterprise edition. The box has 4 gig of memory on it. I noticed today that the sql server was set to use all 4 gig (even though I know sql can't really access that memory because sql can't really utilize the 2-4 gig range). Is there overhead or a downside to leaving it at this, or should I set it to 2 gig
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Oct 27, 1998
hi, here is the situation, my system has the following specks
hard drive = 45GB
memory = 1152 mb
Opsystem = win NT 4.0
application on the NT is ftp server and SQL server 6.5
I am having a tough time retrieving a simple query from a 11 million records.some of the feed back from the newsgroup is that I do not have enought memory. Is there a formula to use to figure out how much memory should allocate to the sql server? what if I allocated too much memory, does that affect the sql performance in a negative way?
Please help......
I can be reach at a.alhussein@mci.com
thanks alot
regards
Ali
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May 21, 2015
I am curious about maximum memory setting .
Should we set maximum memory setting for each SQL server? For example a server has 6 GB memory then should we set maximum memory setting = 3.5 GB ?
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May 4, 2007
We have a SQL 2005 installed in Windows 2003 64 bit system, which has 16 CPU and 32GB RAM, but the performance is poor. SQL server is AWE enable and the sql start account with "Lock Pages In Memory". I checked the task manager and it looks that the SQL server used only about 300 MB memory. Here is what I found:
http://blogs.msdn.com/psssql/archive/2006/11/28/sql-server-becomes-sluggish-or-appears-to-stall-on-64-bit-installations.aspx?CommentPosted=true#commentmessage
What I need to do?
Thanks
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Apr 29, 2015
After I have set the maximum sql server memory in sql server 2014 using sp_configure, do I need to reboot whole server or restart sql service?
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Aug 3, 2007
Hi,
I am testing SQL 2005 Standard (32 bit) on a Windows 2003 Server 64 bit with 8GB of RAM? Should I enable the AWP Setting or not and should I change the maximum server memory (currently saying 2GB)?
Thanks!
Tom
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Dec 3, 2007
We have several 2005 servers with "Maximum server memory" set to 214 gig, which I believe is the default at installation time. I am told that this means "use all the memory there is including paging." Well, this is nuts but the servers seem to work fine with this setting no matter how much physical memory they have.
One of our 2005 servers recently started paging like crazy, so I reduced "Maximum server memory" to 6000 and the paging disappeared (server has 8 gig of physical memory) and the server appears happy.
I can not explain why only this one server has this paging issue and the others do not. Should I be setting "Maximum server memory" on all my servers? Are there other considerations which might cause the server to eat-up all the memory? As far as I know no other applications run on this box.
Thanks,
Michael
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Aug 9, 2007
I would like to know what happens when a very large reference data set for a lookup transform with full caching enabled is getting loaded during package execution and the computer memory runs out or is very low.
Does SSIS
a) give an out of memory error of some sort
b) resort to a no caching or partial caching mode
c) maintain the full caching mode but will switch to using the paging file(virtual memory).
I think it will resort to using the page file in which case the benefits of in memory lookups are lost and performance would suffer. If I cannot upgrade the memory or shrink the reference set somehow, i should switch that lookup task to use partial caching or no caching with an indexed lookup table. Would this make sense?
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Jul 13, 2015
I am looking to test this feature - and the "Transaction Performance Collector" has recommended me a table to port to In-Memory OLTP.Â
I have now tried the "Table Memory Optimization Advisor" tool.
After a couple of tweaks to the table design - the tool is now passing validation but the tool is not allowing to progress to the next step:
Could it be down to not having enough memory? But would this not show in the advisor?
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Sep 28, 2007
Hello. I have received the follwoing error upon an attempt to Browse the Cube. All other tabs are functional, including the Calculations tab. We are running Windows Server 2003 SP2 and SQL Server 2005 SP2. Any suggestions would be greatly appreciated!
**EDIT** - Have confirmed SP1 for VS2005 is installed both locally and on server, also.
Attempted to read or write protected memory. This is often an indication that other memory is corrupt. (Microsoft Visual Studio)
------------------------------
Program Location:
at Microsoft.Office.Interop.Owc11.PivotView.get_FieldSets()
at Microsoft.AnalysisServices.Controls.PivotTableFontAdjustor.TransformFonts(Font font)
at Microsoft.AnalysisServices.Browse.CubeBrowser.UpdatePivotTable(Boolean translate)
at Microsoft.AnalysisServices.Browse.CubeBrowser.UpdateAll(Boolean translate)
at Microsoft.AnalysisServices.Browse.CubeBrowser.InitialUpdate()
at Microsoft.AnalysisServices.Browse.CubeBrowser.SupportFunctionWhichCanFail(FunctionWhichCanFail function)
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Oct 11, 2007
I've been researching AWE to determine if we should enable this for our environment.
Currently we have a quad core box with 4 gb of RAM (VMware). OS: Windows 2003 std, SQL Server 2005 std. 3GB is not set but will be as soon as we can perform maintenance on the server.
I have read mixed feedback on AWE, either it works great or grinds you to a hault. I would assume that the grinding to a hault is due to not setting the min/max values correctly or not enabling the lock page in memory setting.
We only have one instance of SQL on the server and this box won't be used for anything else aside from hosting SQL services. We do plan on running SSRS off of this server as well.
1. Will running SSRS and enabling AWE cause me problems? Will I have to reduce the max setting by the SSRS memory usage or will it share and play nice?
2. How do I go about setting the Max value? Should it be less than the physical RAM in the box? Right now its set to the default of 214748364, even if I don't enable AWE should this default value be changed?
3. It seems that even at idle the SQL server holds a lot of memory and the page file grows. If I restart the process in the morning, memory usage in taskmon is at 600mb or so. By the end of the day, its up around 2gb. How can I track down whats causing this, should this even concern me?
4. The lock Page in memory setting worries me. Everything I've read on this seems to give a warning about serious OS and other program support degradation. In some cases to the point where they have to restore the settings on the server before they can bring it back up. What are your thoughts on this.
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Aug 28, 2015
I have a Windows sever 2012 with sql server 2012 enterprise. Ram size is 22GB. Sometimes SQL sever takes 95% memory.My question, How to reduce memory size without killing any process because it's production server.So there are many background process is running. And,Is there any guides to learn why Memory is raise d so high and how to reduce it.
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Mar 27, 2008
Hello, I understand that we should use SSMS -> Server Properties -> Memory to put a cap on the SQL server memory usage, therefore it gives some space memory for OS, this is based on the fact if the max memory is not specified, SQL will use whatever available memory and eventually crash the system.
My question is that when a server has SSIS and SSAS services installed along with the SQL service. Would the max memory setting covers the SSIS and SSAS memory usage, or the SSIS and SSAS has to shared the memory with OS?
Thanks,
fshguo.
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Dec 6, 2006
I am running Visual Studio 2005. I have an SSIS Package which is consuming a huge amount of memory. During the execution of the package the memory keeps increasing. Until finally i get an Out of Memory exception. I have run this package using dtexec, and in the BIDS. No difference. I do have some script components and have added some code to get the assemblies in the current appdomain. I do see that one particular assembly is increasing on every loop. VBAssembly every time it hits the script component is increasing by 6, and along with it the memory is climbing. What is this VBAssembly being used for is there an update to SQL Server Integration Services that I need?
Thanks! Aaron B.
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Aug 22, 2007
sql server 2000 is running on windows server 2003 ... 4gb of memory on server .... 2003 was allocated 2.3gb nd sql server was allocated (and using all of it) 1.6gb for total of approx 4gb based on idera monitor software ... all memory allocated betweeen the OS and sql server .... then 4 more gb of memory added for total now of 8g ... now idera monitor shows 1.7gb for OS and 1.0 gb for sql server ..... 'system' info shows 8gb memory with PAE ... so I assume that the full 8gb can now be addressed .... why are less resources being used now with more total memory .... especially sql server ..... i thought about specifying a minimum memmry for sql server but i amnot convinced that would even work since it seems that this 1gb limit is artificial .... it it used 1.6 gb before why would it not use at least that much now ??
thank you
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Oct 4, 2015
i want to create a lot of index for my database for performance.but i need find memory usage by indexes.
How to find memory usage by index in sql server?
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Jun 15, 2015
I've a database with a memory optimized filegroup on it. How can I remove it?I have removed the memory optimized table I had on it, but when I try to remove the filegroup I receive an error.
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Jul 17, 2006
Hi,
I am going to install SQL Server 2000 (then SQL 2K5) on a Win Server 2K3 with 8 GB of ram, but it will be 16 GB in the near future.
I would like to reserve a fixed memory (for momemt less than 3-4 GB) for SQL Server and the rest for application (virtualization).
Without AWE enabled, max memory for SQL Server 2K5 is 4GB as for SQL Server 2000?
How can I manage and optimize memory keeping in mind AWE. (any doc, website available?)
Thank
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Feb 10, 2015
So I started a new job recently and have noticed a few strange configurations. Typically I would never mess with min memory per query option and index create memory option configuration because i just haven't seen any need to. My typical thought is that if it isn't broke... They have been modified on every single server in my environment.
From Books Online:
• This option is an advanced option and should be changed only by an experienced database administrator or certified SQL Server technician.
• The index create memory option is self-configuring and usually works without requiring adjustment. However, if you experience difficulties creating indexes, consider increasing the value of this option from its run value.
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Mar 20, 2008
Hello frnds Can Anybody explai what does it mean by question itself and how to resole it ?
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Aug 2, 2006
Hi
I did a load testing and found the following observations:
1. The Memory:Pages/sec was crossing the limit beyond 20.
2. The Target Server Memory was always greater than Total Server Memory
Seeing the above data it seems to be memory pressure. But I found that AvailableMemory was always above 200 MB. Also Buffer Cache HitRatio was close to 99.99. What could be the reason for the above behavior?
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Feb 15, 2007
Hi~, I have 3 questions about memory based bulk copy.
1. What is the limitation count of IRowsetFastLoad::InsertRow() method before IRowsetFastLoad::Commit(true)?
For example, how much insert row at below sample?(the max value of nCount)
for(i=0 ; i<nCount ; i++)
{
pIFastLoad->InsertRow(hAccessor, (void*)(&BulkData));
}
2. In above code sample, isn't there method of inserting prepared array at once directly(BulkData array, not for loop)
3. In OLE DB memory based bulk copy, what is the equivalent of below's T-SQL bulk copy option ?
BULK INSERT database_name.schema_name.table_name FROM 'data_file' WITH (ROWS_PER_BATCH = rows_per_batch, TABLOCK);
-------------------------------------------------------
My solution is like this. Is it correct?
// CoCreateInstance(...);
// Data source
// Create session
m_TableID.uName.pwszName = m_wszTableName;
m_TableID.eKind = DBKIND_NAME;
DBPROP rgProps[1];
DBPROPSET PropSet[1];
rgProps[0].dwOptions = DBPROPOPTIONS_REQUIRED;
rgProps[0].colid = DB_NULLID;
rgProps[0].vValue.vt = VT_BSTR;
rgProps[0].dwPropertyID = SSPROP_FASTLOADOPTIONS;
rgProps[0].vValue.bstrVal = L"ROWS_PER_BATCH = 10000,TABLOCK";
PropSet[0].rgProperties = rgProps;
PropSet[0].cProperties = 1;
PropSet[0].guidPropertySet = DBPROPSET_SQLSERVERROWSET;
if(m_pIOpenRowset)
{
if(FAILED(m_pIOpenRowset->OpenRowset(NULL,&m_TableID,NULL,IID_IRowsetFastLoad,1,PropSet,(LPUNKNOWN*)&m_pIRowsetFastLoad)))
{
return FALSE;
}
}
else
{
return FALSE;
}
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Oct 22, 2007
In my ASP.NET app, I'm executing a stored procedure via a SQLCommand the searches a customer database. I believe the default timeout is 90 seconds. I'm curious of what happens to the SQL Server Stored Procedure after timing out from the ASP.NET application. Does it timeout at the same time or do you have to set up a value in SQL Server?
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Nov 13, 2006
If I install SQL 2005 Standard on Windows 2003 Standard, is SQL limited to 4 gigs of physical RAM?
I'm planning a new system that will run SQL 2005 Standard edition on a Windows 2003 Standard platform. The spec calls for 8 GB of RAM. My experience would lead me to suspect I need to install Windows 2003 Enterprise to take advantage of all the installed memory.
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Jan 31, 2004
Hello, I am a SQL rookie. I have followed the tutorial and installed MSDN as it says. However, I am unable to create a database with WebMatrix. I keep getting an error that reads "SQL Server does not exist or access denied. ConnectionOpen (Connect())."
When I loaded the SQL, everything seemed to go well. I got all of the results that the tutorial said I should.
Please advise on my next steps. Thank you in advance.
JS
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Jan 17, 2006
If you have a SQL server setup that isn’t using a SAN but just a normal raid array and you wanted to utilize a SAN now.
What are the steps, I'm guessing that you will need to start the services under a domain user correct?
Is it as easy as detaching the DB and then reattaching the DB on the SAN?
I'm assuming you need to map the data and log arrays from the server to the SAN correct?
I can’t seem to find any documentation on moving a server to a new SAN. Can someone post links if you have them?
Do you need ENT edition or is Standard OK .
Thanks for your help.
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Feb 20, 2006
Hi
I'm trying to set up a new job to update a field in the table, I've managed to get the select syntax to work, but when I added an IF statement and Update syntax it didn't like it and the following error was shown:-
Server: Msg 156, Level 15, State 1, Line 9
Incorrect syntax near the keyword 'BEGIN'.
This is the syntax I'm trying to use for the job:-
USE EmployerEngagement
IF (SELECT On_Stop
FROM tblEmployer LEFT OUTER JOIN tblWP_Details
ON tblEmployer.Emp_ID = tblWP_Details.Emp_ID LEFT OUTER JOIN tblVetting
ON tblWP_Details.Record_ID = tblVetting.Record_ID
WHERE tblEmployer.On_Stop = 0
AND tblVetting.Next_Vett_Date <= GETDATE())
BEGIN
UPDATE tblEmployer
SET On_Stop = 1
END
Basically I just want to change the On_Stop value from 0 to 1 if the Next_Vett_Date is before or on todays date.
Am I using the wrong syntax for this?
Thanks
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Jul 30, 2007
How do i do it? do i have to set up an ODBC?
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