DataSource Controls :: Memory Utilization In Windows Service?

Jul 2, 2010

I have created a windows service which runs round the clock

In every cycle it communicates with SQL data base and updates around 5000 employees records. Memory utilization is more.

My System configuration is about 3GHz CPU and 2GB Ram.

If I leave the machine for one full night memory utilization goes above 1GB. Service will be running but no work is done in the database.

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I have a memory leak somewhere that I cant find. Every few days my server will crash, and just before that I log a ton of SQL errors stating that it is "out of memory".

I cant find it anywhere, all of my connections are being disposed like so:

[Code]....
Then I call the connection from my pages like so:[Code]....

That is all pretty straight forward. The connection is disposed because it is implementing the USING clause. I am opening the connection in my connection manager class, and not where it is being utilized?Or, could the problem be in the below method I am using to populate a SqlDataReader:[Code]....

Now, at first it appears as though this could be the problem because the Connection isn't part of a USING clause, however doesn't the 'Data.CommandBehavior.CloseConnection' pretty much do the same thing. This makes sure that the connection is closed when the reader is closed, right? Here is how I call that above reader from my login page code behind:[Code]....

So the DataReader will get closed even without the .Close() because it is in the USING, and the connection should get closed because I specified it in the ExecuteReader paramters right?

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DataSource Controls :: Datatable/Dataset Total Memory?

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Feb 1, 2010

[Code]....

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This is me code:

[Code]....

Also I tried useing: Response.Buffer = False but no usefulness.

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I am working in Windows Mobile 5.0 application using C#. I want to get the status of phone memory e.g. Total memory, memory in use, free memory.

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[Code]....

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Iam using ftp client wrapper class for accessing ftp.

iam able to download files from ftp when used in windows application

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the error is

"The underlying connection was closed: An unexpected error occurred on a receive. "

this error i get on directory listing

the stack trace is:

[Code]....

Note:

FTP is getting connected throgh service
FTP is getting connected throug FileZilla, internet explorer

soruce code:

[Code]....

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DataSource Controls :: Recommended Searching Method For In Memory Dataset (datatable)?

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it is apparent that "string builder" is better for building large string compared to sMyString = sMyString + "something";

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C# - How To Consume Windows Communication Foundation (WCF) By A Windows Service

Jul 28, 2010

When i create a Windows Service for getting information from a Web Application(ASP.NET c#) for scheduling some task in the client machine.

To consume WCF from the web application. I added WCF reference to Window Service project as a service reference, everything seems fine. It updated app.config file, added service reference etc.
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[Code]....

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Retrieve The Data From Web Service And Keep In Process Memory?

Feb 15, 2010

I have to retrieve the data from the web service and this data should be kept in process's memory and use it where needed.Do not like to call web service every time.Is there any method to do this?

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DataSource Controls :: Does Dataset Store All Its Datatables' Records Into Memory If I Just Call One Datatable From It

Apr 2, 2010

Does dataset store all its datatables' records into server memory if I just call one datatable from it?Lets make an example, a dataset with three datatables - tbCompany, tbCompanyStaffs, tbSalesOrderwhere tbCompany is the parent of tbCompanyStaffs. tbSalesOrder is an independant table.Does dataset load all tbCompanyStaffs records into the server memory as well when a class retrive data from tbCompany?

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Environment.WorkingSet Incorrectly Reports Memory Usage For A Website That Runs On Windows 2003 Server

Jul 31, 2010

Environment.WorkingSet incorrectly reports the memory usage for a web site that runs on Windows 2003 Server.(OS Vers: Microsoft Windows NT 5.2.3790 Service Pack 2, .NET Vers: 2.0.50727.3607)

It reports memory as Working Set(Physical Mem.): 1952 MB (2047468061).

Same web site runs locally on Windows Vista with a Working Set(Physical Mem.): 49 MB (51924992).

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so i have computed the total memory by traversing with VirtualQuery.

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How To Make A Web (WCF) Service Act As Windows Service

Sep 22, 2010

I have a web application - .net 4. The client is having a requirement that he want to send email to his users on a regular basis about his new courses etc.

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I am unable to connect to my local instance of SQL Server 2008 Express using SQL Server Management Studio.I believe the problem is related to a change I made to the connection protocols. Before the error occurred, I had Shared Memory enabled and Named Pipes and TCP/IP disabled. I then enabled both Named Pipes and TCP/IP, and this is when I started experiencing the problem.

I have now set Named Pipes and TCP/IP back to disabled. When I try to connect to the server with SSMS (with either my SQL server sysadmin login or with windows authentication), I get the following error message:

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Attempted To Read Or Write Protected Memory. This Is Often An Indication That Other Memory Is Corrupt

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I am getting a weird error in asp.net while using leadtools imaging api. Here's the stack trace.

System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
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Attempted To Read Or Write Protected Memory. This Is Often An Indication That Other Memory?

Jan 26, 2011

I am maintaining C# .NET code written by somebody else, I get following exception few times,Attempted to read or write protected memory. This is often an indication that other memory is corruptThe code structure where I get the above exception is somethign like this,- it is using ref variables in following sequence,Variable-1 and variable-2 are local variables in App1, - App1: func1() which passes these variables reference to func2(), - App1: func2() passes same variables reference via .net remoting to another application (App2).-App2: does the same passes same received reference to another call 2 times.- The execption is occured while returning from App2.

(App1:func1(ref Var1, ref Var2) --> App1:func2(ref Var1, ref Var2) <---App1 .net remoting to App2--> App2:func3(ref Var1, ref Var2)--> App2:func4(ref Var1, ref Var2)-->variables getting updated and function returned to original caller)

My doubts are ,1. Is passing reference variables in such chain is correct? will it cause such exeption? Does .net support ref variable call directly?

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Architecture :: Cache The Full List Of Objects In Http Cache On The Service Tier And Page In Memory?

Feb 25, 2011

We have a wfc layer that wraps the business classes and database access and use a client that lives on the database layer. Amongst our group we are attempting to form standards. Some want to have the client call the web method and pass the page they are requesting and the page size. Pass that to the database and then page in SQL Server use RowNum.Some want to cache the full list of objects in http cache on the service tier and page in memory. They concern here is memory use on the server.

Which would be best for a medium number of users with potentially large number of records to manage (say 30K) Is it better to cache them all in memory and work from there or page at the database as the application scales?

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WCF / ASMX :: IIS Memory Increasing For Each Client Request In Asmx Web Service?

Nov 8, 2010

A customer reported that our asmx web service is continually increasing in memory (mem usage as well as private bytes). We are able to reproduce the problem in our lab with Windows 2003 Server SP2 (fully patched) on some of the machines. The customer is using Windows 2008.

We created a Hello World web service targeting the 2.0 framework built under VS2005 SP1 and a test client that continues to call it. The memory increases steadily - approximately 40K per client request. If the test app is paused, the memory remains the same. When it is closed, the memory drops. Explicit calling of GC.Collect does not drop the memory.

We have run the memory profiler on the service and the leak is all native memory. We have uninstalled/re-installed the Framework on one of the machines but no difference. To our knowledge all of the security and IIS settings are not modified. We have compared app pool, default web site and virtual directory properties to machines that have no problem and they are identical.

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When i go to insert data into the sql server db i get an error when it tries to connect.

Heres the code

string sConnectionString = "Integrated Security=SSPI;Initial Catalog=;Data Source=localhost";
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It is on an on button click event.

The area that shows up in the error message is

objConn.Open();

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DataSource Controls :: SQL Server On Windows 7 Ultimate Edition?

Apr 4, 2010

After installing Sql Server 2005 Express edition and Sql Server 2005 Management studio Express on Windows 7 Ultimate Release Candidate, it work's fine but when I install Windows 7 Ultimate Edition....I got this error when creating or attaching new database "

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im using windows 7 home premium-64 bit,when i want to install sql server its not asking for mixed mode its directly creating windows authentication mode but i want to use sql server authentication mode,when im installing im unable to see any mode selection?

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