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
View 5 RepliesI 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 ?
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
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?
View 4 Replies View RelatedHi,
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
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
I have setup database mirroring with witness server. To prevent unnecessary failover because of network slow or other issue, I changed the timeout setting as
ALTER DATABASE <Database Name>
SET PARTNER TIMEOUT 120
Which I understand if connection is broken between principal and mirror, principal database will wait for 120 second and after that only automatic failover will happen.
If this is true, it does not happen in my case. Failover happens before120 second.
I am building a table change log that will track each attribute update and include the original and new values.
[BatchYearMonthKey] [int] NULL,
[BatchYearMonthDayKey] [int] NULL,
[AccountID] [varchar](200) NULL,
[Attribute] [varchar] (200) NULL,
[Old_ValueAtrDefault] [varchar] (200) NULL,
[New_ValueAtrDefault] [varchar] (200) NULL,
[Old_ValueAtrLong] [varchar] (max) NULL,
[New_ValueAtrLong] [varchar] (max) NULL
The challenge that the spectrum of varchar lengths across the table. I have one attribute that requires varchar(max) and all other attributes (about 40) are varchar (200).
I am trying to accomplish the following:
Account ID Status
1 Enabled
Now changed to
AccountID Status
1 Disabled
My log table will look like the following:
[BatchYearMonthKey] BatchYearMonthDayKey] [AccountID] [Attribute] [Old_ValueAtrDefault] [New_ValueAtrDefault] [Old_ValueAtrLong] [New_ValueAtrLong]
201504 20150409 1 Status Enabled Disabled NULL NULL
My question:
I created two fields (Old_ValueAtrLong and New_ValueAtrLong) dedicated for the one attribute that is a varchar (max). I was trying to avoid storing [Status] for example that's a varchar(200) in a field that is varchar(max). Is this the right approach? Or are there other recommendations in how to handle storing the data in the most efficient manner?
I am monitoring our production server, and noticed that periodically we have spikes of Memory Paging Rate (pages/sec).
How to find particular queries/stored procedures that causing this?
I'm busy rewriting DTS packages as SSIS packages. As and when I finish a package I run it in debug mode via Microsoft Visual Studio and then examine the Exection Results to see the messages generated.
Now it may or may not matter how I run the package but the following warning has been generated :-
[SSIS.Pipeline] Warning: Warning: Could not open global shared memory to communicate with performance DLL; data flow performance counters are not available. To resolve, run this package as an administrator, or on the system's console.
I have a pretty simple SSIS package that fast loads a 100 million record table into a SQL Server 2008 table on a daily basis. This normally runs fine and completes in about 1 hour. As this is perhaps one of our largest running SSIS packages, about once every 2-3 weeks this SSIS will fail/drop connection. Once it fails, the large number of records will start rolling back. This rollback process can take 1+ hours so I cannot even restart the failed SSIS package immediately. This is a problem.
I am looking for a solution or option so I do not have to wait on that rollback to restart this particular, long running SSIS package. Is there an option/setting to leave the partial data set committed and not rollback? Then I could just restart the SSIS package immediately or set it the SSIS to auto-restart 1 time on failure. The first step in the SSIS does a truncate of the destination table.
I accidentally set max server memory to 0. Now I cannot rectify as there are insufficient resources in internal memory pool to rectify. How I can recover? I've been unsuccessful to date in running sqlcmd in single user mode.
View 9 Replies View RelatedOur monitoring tool shows that our production system periodically experiencing large rate - up to 800 memory pages/sec. How to find out which particular queries, S.P., processes that initiate this?
View 3 Replies View RelatedI have a few questions about memory setting inheritedWindows 2003, SQL Server SP4, both Enterprise Edition 8 GB RAM1. How to know how much Memory SQL can address ( SQL script is betteras there is no access to Perfmonitor or EM ) . ie what is maximummemory SQL can use ?2. In this server awe is set to 0 . Do I have to turn it to 1 so thatSQL can use all memory .3. If awe is enabled, what is the minimum and maximum memory size needto be set ?4. Should I set max worker set also ?If someone can provide examples of /PAE, /AWE. /3GB ,/USERVA etc , I amgratefulThanksSrinivas
View 3 Replies View RelatedI 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
View 4 Replies View RelatedI 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!
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
View 3 Replies View Relatedhi, 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
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
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?
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?
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
There are a few features in the new SQL Server - Reporting Services that I really need in production. I have tested everything and it works great. I am running the CTP version since Microsoft is saying they aren't releasing the release version until 3rd quarter 2008.
Since Microsoft won't sell SQL 2008 until 3rd quarter, can I run the CTP in production until the release and then purchase SQL 2008?
Jim
Hello - does anyone have experience w/SQL Server 2005 in a virtual environment? I'm considering this for a production environment but not sure if performance will suffer. Our databases will have a lot of writing but not too much reading. A SSRS solution is currently the only app. connecting to the SQL db. Max users to server at any given time will be very low (~10 users max). But the databases are pulling in data from other, outside multiple data sources on a daily basis.
Any pointers to documentation or any advice?
Thanks,
A Brown
Hello!
Recently, I set up server with Windows Web Server 2008 RC1, SQL 2008 Express beta, .NET 3.5, IIS 7.
I'm running ASP.NET web application with SQL database. Everything works fine until the first application state on the server expires. After that, any postback that starts a new application state on the server and connects to the database, results in the following error:
Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed.
Is this a bug that will be fixed in release of Windows / SQL or am I doing something wrong?
Many thanks for help,
Jan
Hi all,
New to this so please be patient and please help.
I have developed an SQL 2005 Express command line option install for our company which has been working seamlessly for the last 18 months.
http://msdn2.microsoft.com/en-us/library/ms144259.aspx
I downloaded the €œMicrosoft SQL Server 2008 Express CTP, February 2008€? from http://www.microsoft.com/downloads/details.aspx?FamilyId=749BD760-F404-4D45-9AC0-D7F1B3ED1053&displaylang=en
I simply replaced the 2005 file €œSQLEXPR.EXE€? with the 2008 file €œ€?, recompiled the installation and tested only for it to fail. I than read the 2008 books online and noted the change in command line options.
http://www.microsoft.com/downloads/details.aspx?familyid=19DB0B42-A5B2-456F-9C5C-F295CDD58D7A&displaylang=en
http://msdn2.microsoft.com/en-us/library/ms144259(SQL.100).aspx
I then changed the command line to suit the Microsoft 2008 books online, recompiled the installation and tested only for it to fail once more.
Interestingly I tested the install from the default GUI and at the point of adding the €œsa€? login credentials it fails to allow the installation to proceed. Strangely by selecting the windows authentication credentials, €œnext€? than €œback€? it now allows me to add the €œsa€? login credentials and continues to install correctly as required.
I hope I have explained this clearly enough.
1. Is this a bug in the €œMicrosoft SQL Server 2008 CTP, February 2008€? installation?
2. If so is this causing the command line install options to fail?
3. How do I obtain a version of €œMicrosoft SQL Server 2008 Express€? that will work installing from the command line?
Thanks in advance.
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?
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)
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.
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.
View 10 Replies View RelatedHello, 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.
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.
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?