Sqlservr.exe Memory Overflow And Performance Problem
Jul 5, 2007
Hello,
I'm havin a problem with my database server in the network, i'm running a windows 2003 server standard edition with sql server 2005 standard edition.
the problem is that the server get stock and the performance of the whole network is affected, when i use the tak manager to monitor the performance i can see that the sqlservr.exe proccess is using 1,397,928 k of memory usage, in the performance monitor the graphics get crazy and the cpu usage grows up untill 85%.
Can you please let me know if there is something that i can do to normalize the server performance in order to let the network user work with the applications feeded by this server.
Thanks in advance for your help.
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Jun 12, 2002
SQL 7.0(SP3) on NT Server(SP5)
The sqlservr.exe process is using almost 800MB of memory in Task Manager. We have 1GB physical RAM. The swapfile is on C: with min=950/max=1050MB. Is this normal? I think there may be some kind of memory leak. Any ideas?? Please HELP!
Rob
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Feb 27, 2006
Hello All,On all of my SQL servers (2000 with SP3), when I go to task manager andlook at memory usage, sqlservr.exe is always at 1.7gigs. If I reducethe maximum to let's say 1 gig it will go down to 1 gig. But if it iseven at 2gigs or 3 gigs it will be showing 1.7 gigs. Why? Is is ok toreduce the memory usage of sqlservr.exe?Raziq.*** Sent via Developersdex http://www.developersdex.com ***
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Feb 22, 2002
I've a SQL 7 SP3 server that was running for more than 6 months without any problem and hence I never give much thought to it other than the monitoring the growth of the database size.
Just the other day, I was pretty shocked to see that SQLSERVR.EXE was using nearly 1 GB of RAM (and I have 1 GB of physical RAM)!!! My database size is only about 2 GB and there aren't many simultaneous users online. This database is used for a web application.
Today I have the opportunity to restart the SQLServer service (to apply the security hotfix). And I'm pretty dismay to see its memory usage climbing steadily at the rate of around 20 to 30 KB every few seconds. I guess it'd hit 1 GB in a matter of hours or days..
Now, I've a similar server on another machine.. but its SQLSERVR.EXE is only using around 20 MB and it doesnt grow much.
So..what should I do?? Ideas? Suggestions? Thanks!!
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Jul 20, 2000
Why does my Sqlservr.exe file take up 200 megs of my nt memory. When i control alt delete and go into task manager, sqlservr.exe is always at the top of the memory usage list.
Melissa
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Oct 3, 2007
Dear Friends,
I have developed my web application using ASP.Net with MS SQL SERVER Express Edition SP2 .
I have hosting it at some where which i can remote and see the service of sqlservr.exe .
The first start of this service take the memory space just only 25 MB but after this service run upto one week it increased up to 200MB .This service won't realease from the memory untill unless i restart the server or restart its service.
1.Could any one tell me why this service continue increasingly ?.
2.What can i configure in MS SQL SERVER 2005 EXPRESS Edition to let this release from the memory without restart the server or its service ?.
Best Regards,
Channarith Hun.
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May 28, 2008
Hi,
I've SQL Server 2005 Dev Edition and Windows Server 2003 ENT SP2.
in the task manager i see that the server use 5GB out of 6GB,but when i arrange the process to see whom takes all the memory i see that the sqlservr.exe takes 150MB(he is the biggest).
when i open Perfmon and look on the sqlservr.exe memory use, i see that he takes the 4.5G.
i've a problem that the server use alot of cpu time to run users queries,i see that pages/sec counter is very big average between 600-800.
is there any problem with my memory?
why the memory reading from the task manager is wrong?
if my pages/sec counter is so big do i have a memory leaks + pressure?
THX
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Apr 20, 2015
1. How to estimate how many free RAM I need. If I plan to create five 2 Gb memory optimized tables...10 Gb RAM for data and how many additional memory?
2. How to prevent memory overflow if there will be too much data in those tables? I dont want that my server down entirely
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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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Oct 31, 1999
Just two questions actually. We have built a ColdFusion based forums package. Currently we have it on two beta sites, and we are usin sql 7 for the db. Firstly the forums are serving 200-300 people at any given time, about 16,000 unique people a day. SQL & seems to stay at around 50% cpu usage on a dual p3 with 512mb ram. Is that normal? Seems like alot of cpu usage. The other thing is it takes 500mb of ram and just about drains the server of all of its ram even though in the memory properties for the sql server its set to 255mb maximum. Any insight is appreciated.
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Mar 17, 2008
Hi,
I hope somebody here can help on my problem.
I wrote a MFC application using sql ce and is running prefectly smooth on wince and PPC 2003.
But when i deploy it to Windows Mobile, the database performance drop dramatically.
I knows the drop on performance is due to the I/O speed on the flash memory.(The previous mobile os are using ram instead).
Is there any solution or work around which I can solve this problem.
Recently i solved the performance issues on "insert" to DB by using a commit buffer(Instead of commit to the sdf instantly).
But how about the "select" performance? It's too slow which take about 3 sec to select a record from the DB.
Does Microsoft provide any suggestion on the sqlce perofrmance on windows mobile?
Thanks
Keith
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Jan 10, 2008
Hi Experts,
here we are having a very very serious problem,
in SQL 2005, we are having 8 CPU's and in the task manager CPU usage is showing 100% and the performance of server is very very poor and last night the server has got rebooted, still CPU Usage is showing 100%, So how can i improve the performance? it is very very urgent for me, can any one please let me know what is going on and what is the solution.
-Thanks N Regards,
Kanthi.
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Sep 24, 2007
Hi -
I am facing 2 problems :
PROBLEM 1 :
We have a few packages that run pretty fast on a desktop server with 2 Gig RAM, Dual processor (approx 4-5 hours). But the same packages run very very slow on the another server containing 8 CPU and 12 Gig RAM (ran for 24 hours without completing).
PROBLEM 2 :
The CPU% ranges from 40-80% and the PF usage is stagnant at 2GB on desktop server for the same package. But in the 8CPU server, the CPU % ranges from 0-10% but the PF Usage raises from 750 MB to 8 GB.
This has become critical to our application.
TIA,
Shabs
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May 31, 2007
Hi All,
I'm new at SQL Server, I decided to use it in order to get all the advantages of using Vb.net and Sql. My server is a SQL standard version. I'm using a relational DB most of the time for complex select queries, everytime the server is used it performs 30 or 40 queries at the time, and I have recently realized that server consumes a lot of memory after one or two days of beign up.
Let's say that if I restart the SQL Server memory usage is about 650 Mb, but after two days memory is 1.4Mb, I have used Sql Profiler and Tunning Assistant where it recommended me to create some indexes, which indeed I created them, but that did not solved the memory problem, although some queries run faster.
My questions are:
is this memory usage is normal ?
if not, what should I check out to reduce memory usage?
Thanks in advance
George
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Oct 5, 2006
Hi,
I know the SSIS memory problem has probably been covered quite a bit, but being a newbie in using the SSIS, I'm not quite sure how to improved the performance of my SSIS package.
Basically, I've a package that loops through all the subdirectories within a specified directory, and it then loops through each file in the subdirectory and with the use of the Data Flow, process each file (according to their filenames) with a Script Component to insert data into a SQL DB.
Each subdirectory has up to 15 different csv files, but each is less than 5kB. I probably have about 100 subdirectories.
When I run the package, it functioned properly, but the package stalled (no error but just stuck in one Data Flow) after a while, and when I checked my CPU memory, it was running at 100%.
I'm not sure how I could fix it or improved the memory allocation. I was not expecting to have any memory problems as the file size is small and the number of rows of data going into and out of the Script Component is no more than 20.
Any advice? Thanks.
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Aug 13, 2007
A query was taking 20 seconds and consuming 70% CPU takes only 1 second after setting Maximum Memory property to 2048 MB - why?
Server:
OS Microsoft(R) Windows(R) Server 2003, Enterprise Edition
Version5.2.3790 Service Pack 1 Build 3790
8 GB memory
Two Dual-core AMD Opteron 285 2.6GHz Processors
Server is not configured for AWE
Fiber channel connection to EMC Clarion - two LUNs - one for MDF, one for LDF
SQL 2005
SQL 2005 32 bit Standard Edition - SP1 (version 9.0.2047)
Three instances installed on server - only one instance in use
Binaries and system databases on local mirrored disk
Database file (MDF) on one EMC LUN - dedicated physical drives
Log file (LDF) on one EMC LUN - dedicated physical drives
Query in question:
SELECT TOP 10 Address.Address1, Address.Address2, Address.City, Address.County, Address.State, Address.ZIPCode, Address.Country, Client.Name,
Quote.Deleted, Client.PrimaryContact, Client.DBA, Client.Type, Quote.Status, Quote.LOB, Client.ClientID, Quote.QuoteID, Quote.PolicyNumber,
Quote.EffectiveDate, Quote.ExpirationDate, Quote.Description, Quote.Description2, Quote.DateModified, Quote.DateAccessed, Quote.CurrentPremium,
Quote.TransactionDate, Quote.CreationDate, Quote.Producer FROM ((Client INNER JOIN Address ON Client.ClientID = Address.ClientID) INNER JOIN Quote ON
Client.ClientID = Quote.ClientID) WHERE (Quote.Deleted = 0) AND ((Address.AddressType)='Mailing') ORDER BY Client.Name
Address table - 161,075 rows
Client table - 161,634 rows
Quote table - 59,145 rows
With default maximum memory setting (2,147,483,647 MB) - query runs in 20 seconds and consumes over 70 % of the CPU.
After changing maximum memory setting to 2048 MB, query runs in less than 1 second.
Question is:
What is the best practice for setting the minimum and maximum memory settings for SQL 2005?
What can be monitored to identify the cause of these type of issues - using profiler, PerfMon, other tool?
Thanks
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Apr 26, 2006
Can someone point me to some good articles or perhaps directly supply some words of wisdom with regard to wise utilization of variables within a T-SQL script from and standpoint of conserving memory usage and improved execution cost?
For example:
(1) Is it better to use varchars, nvarchars, etc. defined with minimal lengths to support the needs of the script or is it just as efficient to declare all with a length of say 4,000?
(2) I've seen behavior that leads me to believe that when passing a variable as a parameter in a nested procedure call, if the declared types of the parameter and the variable being passed in don't match (i.e. one is numeric(38,10) and the other is int), then implicit type conversions hurt performance. Is this true and how broadly does it apply?
(3) Does the number of variables declared in a script materially impact the performance and / or resource utlization?
(4) Is it more efficient to have a series of variable value assignments in a single SELECT statement versus a series of SET statements? Should I always perfer one to the other? Only within a looping construct?
Thanks,
Shadowraven
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Apr 22, 2014
Getting the following warning in SSIS - SQL 2012:
[SSIS.Pipeline] 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.
Microsoft had a fix for SQL Server 2008.
How to get around this in SQL 2012?
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Jul 20, 2005
Fellas!!This is a very complicated one and it took me a few days to figure outexactly what's going on, but here's the final story:I have a production environment running on .NET with a SQL Server(2000, SP3). The SQL Server is on a dedicated Proliant computer with2GB RAM (the actual SQLServer.exe process has dynamic memoryassignment and can reach up to 1.6GB RAM). Nothing else is running onthat specific computer.Once the SQLServer is started, it hits 300MB RAM (the minimum that wasset in the configuration of the server - remember, it is dynamicallyaquired).Then there is a .NET program that requests just about all the data theSQL Server contains (apart from a single table that contains roughly1.6 million rows and another table that contains about 10000 rowswhich are all of type IMAGE).Once all the data is retrieved, the RAM is at about 400MB. From thereon, every update I make to the data on the server causes the RAM to goup by a bit (that updates are done in a Transaction which of course iscommitted at the end). It seems that BLOB updates are the majorproblem in all of this. For some reason, uploading a blob of size 9MBcauses the RAM to go up by roughly 20MB and after commit it gose down10MB (total gain of roughly 10MB RAM). Eventually the SQLServerprocess hits its upper limit (1.6GB) and at this point it startsslowing down.Some performance checks showed me the SQLServer has a lot of diskactivity, it seems it is reading and writing pages of data from/to theHD all the time (which causes the queries to be much much muchslower).We have a development environment running the exact same code (it isthe exact same in everything, except for the amount of data stored inthe DB). This does not happen there at all.I have a few questions:1. Why is the RAM going up after BLOB updates?2. Why is the RAM going up at all?3. How can I tell the DB which tables should remain in the RAM at alltime (never swapped back to the HD?) - DBCC PINTABLE does not seem todo the job.It does not seem to have anything to do with the .NET code.Thank you very much,M Yamo.
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Nov 17, 2009
I am getting the following warning for my SSIS08 package: 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 did check Warning in SSIS 2008 , but didn't find any solution. The package processes data and executes fine , but why do I see this warning? When I run this package on my machine, I see no such warning, it's only when I deploy it to our DEV SSIS server, I get this warning.
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May 1, 2005
hi
when my site is being used, sqlservr.exe is using 100% of CPU..
why this happening ?
please help me..
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Apr 5, 2004
hello,
We are having an issue with tempdb growth and even after restarting the server and the shrinkfile command the tempdb still holds on to nearly 15 GB of space.
I found this article on the microsoft website which recommended that we stop SQL server and retart it from the commad prompt using the sqlservr -c -f command. After this we go to SQL Analyzer and run the shrinkfile.
I gave the sqlservr command on a friday evening in our test enviroment and I come back on monday morning and it is still not completed and i had to close the window and start SQL Server from Windows.
Is there something that i am missing here that i should know about the sqlservr command. Is there anything else that someone could recommend regarding shrinking the tempdb.
thanks
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Jan 7, 2008
Happy new year and merry xmas to everyone
I got SQL 2005 Express edition with Sharepoint Server 2007 installed and its running 100% CPU all the time
there are plenty threads like this out there but none have an answer
anyone got ideas?
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Jul 11, 2000
Help ! My sqlservr service is running at 100% and my server is dog slow. I don see anything unusual when looking at current activity or sp_who2. I have restarted it a few times.. ANy suggestions? I only have one database in production on this server and there are only about 10 users hitting it..
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May 2, 2005
Arghhh, login to sqlserver and issue this query:
Code:
SELECT @@VERSION
and tell us what comes out.
Seev here for reference.
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Feb 25, 2000
Hello all,
Can I know somedetail about why the Sqlservr.exe app increasing in size drastically. Even I check all parameter of the server and I check the process running on server.
I feel server is not releasing the queues and It is occupying the memory. I any one suggest what could be the cause ?
Thanks,
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Aug 25, 2004
I have been dealing with an intermittent problem for several months that manifests itself on my computer as well as a customers computer. It is happening so often, upon booting the computer, that I just open and then minimize the Task Manager so that it will be in the Tool Tray and the bargraph will be visible.
From time to time the processor bargraph will "Max out" and when I open Task Manager and click on CPU in the Processes Tab, SQLServr.exe is using 99% of the CPU.
In Enterprise Manager I have set maximum Memory to 25% of the available system memory. I have tried this in both Fixed mode as well as Dynamic mode, no change.
I was told that there was a SQL Server version that was susceptible to a WORM that caused this. I have since upgraded to SQL ver. 8.0.194. I'm not sure of the version that I replaced, but I thought that the previous version was the one that was susceptible to the worm.
Has anyone fought this battle and if so can you offer any experience or advice?
Thanks very much for your help,
Doc
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Jun 11, 2008
Hi all,
I have a problem with sqlservr.exe (version 2005). It use alot of memory. I check on taskbar manager sqlservr.exe usage (CPU 10 - 20%, Mem usage - 1,493,688/2GB Ram). I dont know how can I fix it. Some body could help me please.
Thanks
Doan Jung
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Jun 11, 2008
Hi all,
I have a problem with sqlservr.exe (version 2005). It use alot of memory. I check on taskbar manager sqlservr.exe usage (CPU 10 - 20%, Mem usage - 1,493,688/2GB Ram). I dont know how can I fix it. Some body could help me please.
Thanks
Doan Jung
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Feb 13, 2008
Hi,
I have asked this question on the MSDN forums
with no response as yet. Maybe you guys can
shed some light on this:
http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=2826915&SiteID=1
We have an apparent File Handle leak occurring in our SQL server.
Last weekend the server ran out of non-paged pool space:
Event ID 2019 -The server was unable to allocate from the system
nonpaged pool because the pool was empty.
In the process monitor the sqlservr.exe process had Mem Usage
of 503,528KB and a handle count of 3,306,263 (!). Using poolmon
the highest usage of the non-paged pool was for the Muta tag, with
211,610,768 Bytes. Restarting the sql service fixes this
temporarily, but already we are back to 427,000 handles for
sqlservr.exe and climbing steadily at about 200,000 handles
per day.
Is there a fix for this?
Cheers,
Geoff
PS
We have:
Microsoft SQL Server 2005 - 9.00.3054.00 (Intel X86)
Mar 23 2007 16:28:52
Copyright (c) 1988-2005 Microsoft Corporation Enterprise Edition
on Windows NT 5.2 (Build 3790: Service Pack 2)
(Meaning Windows Server 2003 R2 SP2 :-) )
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Mar 20, 2007
Can someone please explain what exit code 259 means as it appears in the debug output below?
When running a C# Stored Procedure within the VS 2005 IDE I receive the following Debug Output:
Auto-attach to process '[1152] [SQL] enterprise' on machine 'enterprise' succeeded.
Debugging script from project script file.
The thread 'enterprisesqlexpress [56]' (0x150) has exited with code 0 (0x0).
The thread 'enterprisesqlexpress [56]' (0x1314) has exited with code 0 (0x0).
The thread 'enterprisesqlexpress [56]' (0x1314) has exited with code 0 (0x0).
'sqlservr.exe' (Managed): Loaded 'C:WINDOWSassemblyGAC_32mscorlib2.0.0.0__b77a5c561934e089mscorlib.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'sqlservr.exe' (Managed): Loaded 'c:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLBinnSqlAccess.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'sqlservr.exe' (Managed): Loaded 'C:WINDOWSassemblyGAC_32System.Data2.0.0.0__b77a5c561934e089System.Data.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'sqlservr.exe' (Managed): Loaded 'C:WINDOWSassemblyGAC_MSILSystem2.0.0.0__b77a5c561934e089System.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'sqlservr.exe' (Managed): Loaded 'C:WINDOWSassemblyGAC_32System.Transactions2.0.0.0__b77a5c561934e089System.Transactions.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'sqlservr.exe' (Managed): Loaded 'C:WINDOWSassemblyGAC_MSILSystem.Security2.0.0.0__b03f5f7f11d50a3aSystem.Security.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
Auto-attach to process '[1152] sqlservr.exe' on machine 'enterprise' succeeded.
'sqlservr.exe' (Managed): Loaded 'C:WINDOWSassemblyGAC_MSILSystem.Xml2.0.0.0__b77a5c561934e089System.Xml.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'sqlservr.exe' (Managed): Loaded 'SQL2005_Test', No symbols loaded.
'ENTERPRISE;.Net SqlClient Data Provider;4400' (Managed): Loaded 'C:WINDOWSassemblyGAC_MSILSystem.Configuration2.0.0.0__b03f5f7f11d50a3aSystem.Configuration.dll', No symbols loaded.
CurrencyCode Name ModifiedDate
------------ -------------------------------------------------- -----------------------
eee MyCurr4 3/20/2007 12:58:38 PM
(1 row(s) affected)
(1 row(s) returned)
Finished running sp_executesql.
The thread 'enterprisesqlexpress [56]' (0x1314) has exited with code 0 (0x0).
The program '[1152] [SQL] enterprise: enterprisesqlexpress' has exited with code 0 (0x0).
The program '[1152] sqlservr.exe: Managed' has exited with code 259 (0x103).
I would also appreciate hearing back from users as to why I only have two choices in my VS 2005 IDE Output window (Build and Debug). From what I've read, 'Database' should be another choice for 'Show output from:'.
My environment consists of the following:
Database:
Microsoft SQL Server 2005 - 9.00.3042.00 (Intel X86) Feb 9 2007 22:47:07 Copyright (c) 1988-2005 Microsoft Corporation Express Edition on Windows NT 5.1 (Build 2600: Service Pack 2)
I have verified the SQL Server connection has 'Allow SQL/CLR Debugging' enabled.
The Visual Studio 2005 IDE is:
8.0.50727.762 (SP.050727-7600)
Running Microsoft .Net Framework version 2.0.50727
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May 4, 2006
I keep getting different answers from different people on regarding if you can or cannot kill the hosting sql server process with an unsafe assembly. Can you do this? If so could you please attach a sample demonstrating this?
Thanks,
Derek
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Jul 3, 2006
Why is the PasswordRecovery control creating another sqlservr process after I successfully enter the user name, and for a reason I have not found yet it keeps the database in a read only modem then when I answer my security question correctly it gives me the error:
Failed to update database "C:INETPUBWWWROOTVER1.0.0.1APP_DATAASPNETDB.MDF" because the database is read-only.
I read other post regarding the read only message and I don't if there doing the same thing, but why does this happen and what is the solution to this other not using the control?
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