Physical RAM Stress Test
Nov 20, 2006
Hi,
I have a new server where 32GB of RAM is installed and I have user databases on this server.I am using SQL server 2000 Enterprise edition and Platform is Windows 2003 adv server, which supports upto 128GB of memory.
sp_configure 'awe enabled' is set to 1 and at OS level, AWE is enabled as well.
max server memory (MB) is 2147483647
I was doing some stress test on this server but memory usage doesn't go beyond 180MB....can someone suggest a test for physical RAM ?
How can I make sure that application will make full use of available physical memory?
Rgds
Wilson
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Dec 27, 2007
Hi all,
We have configured a DR server for our Production Server for Database Mirroring.
But, before bringing DR Server into live, we will setup Mirroring between our DR & TEST Server for Stress Testing on new DR Server.
So, What is best way to Stress test the DR Server, before bringing DR Server into Live.
Thanks.
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Mar 20, 2001
I am looking to purchase tool where I can perform the stress test on SQL 7.0.
Any recommendation will be appreciated.
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Jan 11, 2005
I have been asked to perform a performance stress test on a SQL server with new hardware that we are going to be receiving.
How have some of you performed your stress analysis against new or existing hardware?
This hardware that I am going to receive will have to be configured within a high availabilty environment. I want to take this opportunity to really put a beat down on this server.
Thank you all for your suggestions.
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Apr 2, 2007
I have a Windows 2003 Server running SQL 2005. The server has 32 GB of memory and I have enabled AWE in SQL. I have also configured the min and max SQL memory as 1 GB and 28 GB, respectively. However, this server currently has very low activity so I'm not sure whether my AWE-related changes worked. SQLSERVR.EXE process takes up about 100 MB of memory. Is there any tool or scripts that I can use to memory stress SQL to confirm that AWE is really in effect ?
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Dec 5, 2006
Hi,
We have built two testing apps for sending and receiving files across the network reliably using SQL Express as the database backend. The apps seem to be working fine under light load. However during stress test, we always get the following exception:
"System.Data.SqlClient.SqlException: Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding."
During stress test, both the sender and receiver are running on the same machine. Sender creates file fragments, store them in the sender database and then send out to the network. File fragments will be deleted from the sender database when the sender receives acknowledgement from the receiver. On the receiver side, file fragments will be stored in the receiver database as they are coming in from the network. Corresponding file fragments will be deleted from the receiver database when a complete file is received.
There is maximum of about 1500 updates and 1500 deletes per second on the sender database. On the receiver side, maximum is about 300 updates and 300 deletes per second. Our goal is to send 30 GB of data (it should run for about 10 hrs). As said before we never have a good completed test run, a "timeout" exception is always thrown from the sender app (when it tries to end a transaction). It could happen as early as 1.5 hrs after we started the test. Note that although we are sending 30 GB of data, but at any point in time the database shouldn't be too big (should be well within 4 GB limit) because we delete file fragments relatively soon.
Next we changed the "Query Wait" setting in the Management Studio Advanced setting from the default "-1" to a very big number, then we have a successful run of sending 30 GB of data.
- First of all, are we not doing this properly in terms of dealing with SQL Express? Is SQL Express able to handle long running heavy load transactions for hours?
- We also noticed even before we got the timeout exception, the memory usage of sqlserver.exe keeps growing. Maybe it doesn't have a chance to cleanup internally. If the app hammers SQL Express for hours, I wonder how does it handle fragmentation? I assume it needs some sort of de-fragmenation, otherwise performance will degrade significantly...
- Seems like the Query Wait setting plays an important role here, any guideline on how to pick a reasonable value? Or should we pick a relatively small number and then do re-try in our app when we get timeout exceptions?
- Is it possible that we are running into some SQL Express resource limits? Any idea of how can we tell other than the VM size of sqlserver.exe?
Any help or suggestions would be greatly appreciated!
Thanks very much
W Wong
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Aug 25, 2007
Hello,
We are trying to attach a database in Sql Server 2005 Express on Windows Vista.It will Show the following Error.
"Unable to open the physical file "Test.mdf". Operating system error 5 :". And then we installed the SQL Server 2005 Service pack 2. This error again comes.Could you please give me the steps to resolve the problem.
Thanks,
Mahesh
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Oct 12, 2015
We are setting up a test lab environment with 100 machines. We want one master testing db that gets replicated to each to run scripted application tests nightly.
My goal is to minimize the amount of work to move this thing to each of the 100 test machines. I am wondering if we need to even have the sql local and invest in a monster db server with 100 copies of the db we restore and each test machine point to their own db on that server, or if I should use db mirroring or something to get the master test db to each of those machines instead.
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Oct 17, 2006
Now that we have a good programming model in SSIS - the question is whether to write automated unit tests for your packages, and would it generally be a good idea for packages?
Also - if yes to write tests - then where to find more informations regarding How to accomplish that?
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Nov 27, 2007
hi every one,
i need to test SSIS pacakge which will import data from different database where record count is around 5 millions.
iam planning to test it through c# code as well as manually also.
SSIS source : consist of 7 tables
SSIS destination :consist of 7 tables
Using c# code iam trying to run ssis package through batch file.
i am putting expected rowcount, column count in an excel file and comparing same with destination tables by writing query implementing ADO.Net concept.
am i going right way ,can any one suggest best and productive way to test the ssis package .
what are the other things i need to test it.
do any one can add test cases to it.
S.No
Test Case
1
Verify all the tables have been imported.
2
Verify all the rows in each table have been imported.
3
Verify all the columns specified in source query for each table have been imported
4
Verify all the data has been received without any truncation for each column.
5
Verify the schema at source and destination
6
Verify the time taken /speed for data transfer
7
Fields truncated due to difference in length of the field at destination.
Regards
Arif shareef
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May 1, 2001
Hi,
Is there anyway to test the loadtesting/Stress testing on SQLSERVER. I wanted to executes a Store procedure with concurrent users.
Thanks
JK
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Oct 26, 2000
can anyone tell me where can download stress testing tool for SQL Server 7.0.
Thank You,
Piyush Patel
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Dec 24, 2002
Anyone have a tool or script to run to test a SQL server under heavy stress?
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Sep 22, 1998
What exactly `Stress Management` is.
Any tools for assessing Stress Management?
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May 18, 2001
Anyone know a decent stress tester tool for SQL Server2000? I need to simulate many concurrent users executing queries...
Regards,
/S
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Jan 28, 2005
What do you recommend for stress-testing the performance of key stored procedures (they have been identified) for our application? The parameters can be programatically selected, for example:
Select 'exec my_proc @id = ' + Cast(id As varchar)
From myTable
Where foo = 'bar'
I have the Support Tools Available For Stress Testing & Performance Analysis (http://www.microsoft.com/downloads/details.aspx?FamilyId=5691AB53-893A-4AAF-B4A6-9A8BB9669A8B&displaylang=en) from Microsoft's site and they are pretty good.
Recommendations appreciated, and thanks in advance!
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Jul 26, 2006
I am trying to import a data file, which is tab delimited, using BULKINSERT. I have used BCP to create a format file, since the destinationtable has around 20 columns, but the data file has only three.Here's the problem: The columns I am trying to import comprise ID (anint identity column), Name (a varchar(255) column and Status (a smallint column). The data file contains identity values for the firstcolumn, so I am using the KEEPIDENTITY modifier. The Status column ismandatory, so I have set all rows in the data file to zero for thatcolumn. All of the other columns in the destination table either allowNULL or have default values. When I BULK INSERT the file using theformat file the identity columns are NOT imported and the Status columngets value 3376. The Name column is the only one that gets importedcorrectly. Here's the format file:8.031 SQLINT 0 4 " " 1 ID""2 SQLCHAR 0 0 " " 2 NameSQL_Latin1_General_CP1_CI_AS3 SQLSMALLINT 0 2 "" 4 Status""Sorry it's a bit messy.Where is 3376 coming from, and why are my identity values for column IDnot being imported?
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Mar 8, 2002
I am testing different raid setups in a Datawarehousing environment.
E.G
3 X Raid 5 (with four filegroups)
3 X Raid 10 (with four filegroups)
At the moment I have chance to trial different hardware configurations.
I want to measure what are the performance differences
I need to stress test these configs. Is there any tools I can use to do this.
Any loads I can use. What should I measure.
Are there any aricles for the environment
Any help would be great
Pete
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Mar 2, 2006
I am currently working on a project which needs to load over a 1000 xml files. The files are stored across 10 subfolders. I am using a foreach loop with a file enumerator, which is configured at the top of the folder structure and traverses the subfolders. This loops through the files, load the data and then moves the file to another folder. The package executes fine for a few 100 files but then hangs; this happens after a different number of processed files each time the package is run. While trying to resolve the problem we ran performance counters and noticed that the number open handles increased significantly just about the time Dtexec looked like it had hanged and DTexec also then started taking a lot of the cpu processing time. Has one else come across similar situations?
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Jun 25, 2015
I need to restore test DB from production backup but once it is restored I would need all the permissions of sql logins and windows AD account intact in test Db as it was before.
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Feb 29, 2008
hi,
I am new to this technology. can anyone pls help me.can anybody tell me what is physiacl file and source physiacl file wat are the attributes of physical file and source physical file.and how do we identify the uniqueness of a job.
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Feb 28, 2001
Can anyone inform me how I would go about merging or combining 2 or more physical database files into 1. For example, suppose you have the following files out on your server:
c:mssql7datapubs_data1.mdf
c:mssql7datapubs_data2.ndf
c:mssql7datapubs_data3.ndf
but you only want
c:mssql7datapubs_data1.mdf
Is there any way to combine pubs_data2.ndf and pubs_data3.ndf into pubs_data1.mdf so you are only left with 1 database file called pubs_data1.mdf?
Thank you,
PJ
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Oct 27, 2003
I know how to modify the logical file name: ALTER DATABASE SATutorial
MODIFY FILE (NAME = Tutorial, NEWNAME = SATutorial_data)
GO
How would I modify the physical file name from (e.g.) Tutorial.mdf to SATutorial_data.mdf?
TIA...
Al
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Dec 20, 2004
Hi! I have an SQL server installation with a 6.5GB database online at a particular location. I need to move the Database to another location which is a 1000 Miles away.
I have an additional physical Server at the other location which I can use to Sync the database from the original location. Can anyone please guide me to the best strategy to sync the database from the original location to the new location with minimum downtime??
Any help would be greatly appreciated.
Thanks and Regards
Anish
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Feb 15, 2005
Can anyone explain to me how a column defined with a "bit null" datatype is physically stored in MSSQL? Is it stored like a "tinyint null" physically? In other words, how many bytes on the row on the page does a "bit null" datatype consume (assuming a non-null value 0, or 1 is the current value).
Is there any good documentation about the physical storage layout for a data page?
Thanks -
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Jun 25, 2015
we have:
(1) one physical server :
OS : Windows Server 2003
Active Directory, DNS, DHCP, File Server, Print Server and SQL Server 2005
and we will install new (2) two server for High Availability with VMware vSphere (ESXi) 6.0
and we will have (2) two Virtual Machine :
1st VM :
OS : Windows Server 2012 R2
Active Directory, DNS, DHCP
2nd VM :
OS : Windows Server 2008 R2 (becaure SQL Server 2005 does not work with 2012 R2 link)
SQL Server 2005 Service Pack 3
My Question is : What is a safe method to Migrate Database's from Physical Host (Windows Server 2003) to 2nd VM ?
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Apr 4, 2008
I may be put on a project involving the migration of a SQL Server 2000 database from one physical location to another. I've never done something like this so any guidance would be appreciated.
My plan is to:
1. Backup the live database.
2. Do a restoration at the new location.
3. Set up transactional replication between the two databases.
4. Update records to point to the new db.
Are there any problems with doing it this way? Is there a better solution? I am trying to do this without any downtime, or as little as possible.
Thanks for any help.
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May 6, 2008
Is there an alert for physical memory in SQL2K5? My requirement is - I should get an alert when the free space on a particular drive comes below a threshhold.
------------------------
I think, therefore I am - Rene Descartes
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May 30, 2008
hi
where is save the folder of sql server logs ,error logs in sql server 2005
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Feb 12, 2007
Environment: Win2003 SP1, 32 bit, SQL Server 2K5
My server has 16GB RM but it is using only 3GB. And I see my server is using 3GB of Virtual Memory, too. Why my physical memory is not being utilized? How can I increase Physical Memory usage and decrease VM usage?
Canada DBA
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May 21, 2007
I just inherited a dev box, and need to do some performance analyzing on a 40 gig db for a client. Time is of the essence!
My question is that this dev box only has one disk partition (c: drive). Is it a huge deal that I don't have the db system files on one drive, with the data files on another, and tempdb on another,etc.....
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Jul 23, 2005
Hello all,We are in the process of upgrading our SQL physical server (with SS2k). Inthe process we will change the OS form NT4 to W2K. What is the best way tocopy all my databases and SQL logins, roles, jobs, alerts, etc. from myactual (old) SQL Server to my new one?Thanks for your time.Yannick
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Jul 23, 2005
I need to bulk insert very large amount of data into several MSSQLtables.The first Data model definition used identities to mantain relationshipbetween those tables but we found that natural keys (compound) arebetter forbulk insert (there is no need to obtain the identity first)My question is, changing the identities to natural keys (in some tablesinorder of 4, 5 attributes) will enlarge my database storage?I think MSSQL implements relationships with pointers (or hashcodes), sothestorage size will be similar, right?Regards,
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