I'm running IIS 7 on Server 2008, with a single AppPool for an application which is basically just a collection of ASP.NET WebMethods. Some of these methods process for hours before they return. What's weird,is that sometimes when I launch multiple simultaneous requests IIS spins up a single w3wp process (and seems to share it amongst the requests) and other times it spins up multiple w3wp processes.
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I want to get all the processes that is meant for a particular session.
i.e if there are two persons who are using my web application then i want to get all the processes used by user1 and all the processes used by user2.
I can get all processes by writing Process.GetProcesses() but how to get it in a group.
e.g:
User1: Process342
User1: Process151
User2: Process452
User2: Process674
User2: Process111
in my ASP.NET app happen asynchronously (i.e in background threads without any access to HttpContext). Let me take an example of one such action. The app would be deployed to a web farm soon.
The background threads would be processing files deposited to a network share location. So, when the app starts, I create a FilesystemWatcher to monitor activities on the desired network share folder.
As soon as a new file arrives, the code processes it and marks it as completed processing.
The problem is with multiple servers watching the same network share, the same file might get processed on different machines, meaning redundant results. On a single server, I use locking mechanisms to prevent race conditions.
Now how to prevent the same on a web farm?
I'd like to display an animated gif after user presses a submit button which causes postback. I'm following Joe Stagner's tutorial
here. The page worked fine. But now that I've added the update panel around the button and then an update progress with a gif in it, the app doesn't run.
Now, when the button is pressed, the animated gif appears and runs for about three seconds or so (due to the artificial latency added as per the tutorial - System.Threading.Thread.Sleep(3000) ) and then it stops, nothing returns from the server.
What am I doing wrong and what am I not understanding with this Ajax process and the server?
(by the way I'm using the toolscript manager that came with the Ajax control toolkit, don't know if that matters)
[Code]....
I'm firing the my ModalPopupExtender from a server side button click (bthAuth) and then need to hide that button after my processing is complete. When btnAuth.Visible = False is called it displays the ModalPopupExtender. If I remove this piece of code the window goes away like it should.
<cc1:ModalPopupExtender ID="ModalPopupExtender1" runat="server" TargetControlID="btnAuth" BackgroundCssClass="modalBackground" PopupControlID="ModalPanel"> </cc1:ModalPopupExtender>
btnAuth_Click():
bunch of stuff here()
btnAuth.Visible = False -- This is what is causing the ModalPopupExtender to stay displayed.
On Page Load:
btnAuth.OnClientClick = String.Format("fnClickUpdate('{0}','{1}')", btnAuth.UniqueID, "")
Function:
<script type="text/javascript">
function fnClickUpdate(sender, e)
{
__doPostBack(sender,e);
}
</script>
I'm currently experiencing and issue on whether to say a connection has been left open due to my code or if it's left open due to ADO.NET pooling. Here's a sample of my code:
Public Function ExecuteDataTable(ByVal strStoredProc As String, Optional ByVal objParams As SqlParameter() = Nothing, Optional ByVal cmdType As CommandType = CommandType.StoredProcedure) As DataTable
Dim objDt As New DataTable
Dim objAdapt As New SqlDataAdapter
Dim objParam As SqlParameter
Try
OpenDb()
If Not IsNothing(objParams) Then
AddParams(objParams)
End If
objAdapt.SelectCommand = New SqlCommand
With objAdapt.SelectCommand
[Code].....
Then when I go to open up the SQL Mgmt Studio, I look into the processes and the particular connection that has ran with the SQL that my function runs appears to remain open. So to me, it looks like ADO.NET is performing some kind of pooling. Is it safe to make that conclusion? How would I be able to tell if the connection is available to be used again by the ADO.NET pool?
When IIS restarts an ASP.Net (2.0) web application, it can either:
Recycle the AppDomain: Unload the AppDomain and load a new AppDomain on the same process (e.g. when HttpRuntime.UnloadAppDomain() is called, when web.config is changed).
Recycle the process: unload the AppDomain and load a new one on a new process (e.g. when invoking Recycle command on an AppPool via inetmgr, or when memory limit is reached).
Due to some internal reasons (trouble with legacy native code we depend upon), we cannot allow the first option. We just can't load the application twice on the same process.
Can IIS be somehow told to never allow worker process reuse?
I've tried preventing it myself by tracking whether an application has already started on a process once using a Mutex, and if so - throwing an exception during Application_Start()); I've also tried terminating the process by calling Environment.Exit() during Application_End(). The problem with both methods is that it causes any requests that arrive during Application_End or Application_Start to fail (unlike a manual process recycle, which fails absolutely no requests because they are redirected to the new process right away).
How can I show loading image for the user while executing long running process in an ASP.Net Ajax application? Is there a way other than using Page Methods? Any ideas?
View 2 RepliesI'm running a Windows 2008 server (a VPS with 1GB of RAM), with SQL Server Express and IIS 7 installed. On it I'm hosting a NopCommerce 1.7 website, with a database of around 26 000 products.
Right now I'm the only user of the website (it's in development) and I'm getting rather bad performance from it. To be more specific every time I make a request, the worker process goes to 90-100% CPU usage for a few seconds. Is it me or this is a lot for a 1 user NopCommerce website?
PS: the worker process uses between 100MB-400MB of memory (private working set), and SQL Server with this database, around 160MB.
I wrote a windows service of batch processor to request statistic information from a web service whose url is end with *.ashx. The windows service and web service are on the same PC. When the batch tasks started, CPU usage came from 1% to 99%, w3wp.exe took 70%, and sqlserver.exe took 29%. About five minutes later the batch process tasks completed, but CPU usage still kept the level 60%, w3wp.exe took 40%, and sqlserver.exe took 20%, and it's never down. Request codes in batch processor are:
[Code]....
How can I bring down the CPU usage? PS. OS version WIndows 2003 sp2; SQL 2008 sp2; iis 6; Four Cores AMD CPU; 4G Memory
I am using the asp.net and framework 2.0 with Ajax enable web.i have a text box and when user will enter "a" or number in this will search the name started from "a" character or number if he or she enter the number basically we can say live-search.
Employee search: Textbox.In this text box she/he will enter the first character of name or first number of employeeno and according to the a character name will search in list.
My code reading a page from pdf file by PDFLib and sending it to client after putting watermark on the image. The problem is w3wp.exe posses is eating more memory in every request, so after using the program times the memory will be full. My Server system is windows xp 64bit.
This is me code:
[Code]....
Also I tried useing: Response.Buffer = False but no usefulness.
Which process running on an IIS web server is responsible for the creation of w3wp.exe worker processes for each asp.net application?
View 2 RepliesNeed you for IIS setting on new Windows 2003 64 bit server we have installed the 32-bit application installer on new 64 bit server, application Insatallation and access is fine
View 1 Repliesim using win 2003 server,
when attaching process im unable to find the w3wp.exe working process.
i didnt find in the application process.
what should be done in order to find this.
I created a webform in 4.0 some users are saying they are getting the above error. I have windowsserver 2008, IIS 7 on it. Does anyone know how can I fix this issue?
View 5 Repliesan unhandled win32 exception occurred in w3wp.exe error occures when we run .Net application from IIS. My configuration is Windows server 2008, IIS7, .Net 2.0, and Oracle 10g.
View 2 RepliesI have an app configured to use anonymous authentication, the application pool is set to network service. When I run filemonitor I can see that thw w3wp.exe is picking out the webpages and stuff from my hard drive and returning images etc. However one of the pages saves a file to a folder using c# save() method. Instead of the w3wp.exe actually writing the file to disk explorer.exe seems to be accessing the folder. What the hell is going on? I though the w3wp.exe did everything asp.net related why on earth is explorer.exe being introduced into the fold here?
View 1 RepliesOracle has simple, useful and free tools for attaching to a process and monitoring its SQL statements but I can't anything similar for SQL Server. This is incredibly useful across a number of scenarios, particularly when dealing with third-party assemblies (1). ANTS 6 seems to support something like this (2), though it doesn't allow you to view the stack-trace that lead to the query as dynaTrace does. I don't think dotTrace tracks parameter values, either.
Surely there's a widely available option for profiling SQL application-side?
(1) -
[URL]
(2) -
[URL]
I have recently moved our ASP.NET session state from InProc to a Sql Server solution. I can see session data being inserted into the Sql Server database. I'm monitoring the w3wp.exe process using the "Private bytes" & "# Bytes in all heaps" performance counters.As I navigate through the website it places data into session, however the private bytes counter still climbs on the server hosting the website? I thought the session data was being written to the database and not being stored in memory? The managed bytes remain constant, and I'm pretty sure all the objects going into the session are managed types.
View 1 RepliesWe have an internal ASP.Net 3.5 application that opens Pervasive SQL databases, reads the data, and then closes the connection. Unfortunately, when the user exits the application, and even when they close their browser, the w3wp process seems to be holding the PSQL database connections open, which is causing licensing issues for us. I would like the w3wp process to release the database connections once the last user has exited from the ASP.Net application. How can I get w3wp to release the connections?
Someone told me that the Powershell command, "gps w3wp | kill" will stop the w3wp process. Is there any way I can automate this, so that the process will be killed automatically when the last user exits our ASP.Net application?
I am getting the error when running the project locally. I think it is not getting the Jet provide in access. Error display in browser as follows. ADODB.Connection error '800a0e7a' Provider cannot be found. It may not be properly installed. /project name/databaseconnect.asp, line 14
I search on the internet and install MDAC,but not help. I am using Windows 7 with IIS7 how can i proceed.I cant be able to work on the project.
I have a CLR 4 WCF service hosted in IIS 7.5 (Windows Server 2008 R2), using the WebHttp binding (with [WebGet]). The service calls into an unmanaged component implemented in C++ (Visual Studio 2010). I deliberately added an access violation inside the unmanaged component (by calling delete on a pointer repeatedly, calling methods through a deleted pointer, etc.) to test dump file generation settings. The access violation crashes the w3wp.exe process, which is not surprising considering "Corrupted State Exceptions" in CLR 4. However, when the process restarts (due to warmup and always-on settings in IIS), the same request seems to be replayed to the service so that it crashes the w3wp.exe process again. After a few times (governed by the "max failures" application pool setting) the application pool is stopped.
I'm using the browser as the test client, and while the restart sequence is underway the request is still in flight. When the application pool is stopped, the request returns with 503 Service Unavailable. I can work around the problem by placing try...catch block around the code and using the [HandleProcessCorruptedStateExceptions] attribute. When I do that, the w3wp.exe process does not crash. However, this is not the desired behavior -- I want the process to crash (an access violation or a memory corruption is bad enough) but I want it to restart into a clean state and not have the request replayed. I was not able to reproduce the problem using the BasicHttp binding.
We recently migrated our ASP.NET 2.0 application to ASP.NET 4.0. It is running on Windows 2003 with IIS 6.0. After migrating, we have found that the ASP.NET 4.0 worker process w3wp.exe crashes intermittently with an 'Access Denied' exception. The stack trace of the exception does not point to any code written in our application. We are clueless as to what could be causing this. The worker process crashes when it makes a remoting call over http.
Event Type: Error
Event Source: ASP.NET 4.0.30319.0
Event Category: None
Event ID: 1325
Date: 2/22/2011
Time: 10:01:03 AM
User: N/A
Computer: SYS01
Description:
An unhandled exception occurred and the process was terminated.
Application ID: /LM/W3SVC/1/ROOT/Remoting
Process ID: 4660
Exception: System.TypeInitializationException
Message: The type initializer for 'ConvertClass_1' threw an exception.
StackTrace: at ConvertClass_1.Finalize()
InnerException: System.Management.ManagementException
Message: Access denied
StackTrace: at System.Management.ManagementException.ThrowWithExtendedInfo(ManagementStatus errorCode)
at System.Management.ManagementScope.InitializeGuts(Object o)
at System.Management.ManagementScope.Initialize()
at System.Management.ManagementObject.Initialize(Boolean getObject)
at System.Management.ManagementClass.CreateInstance()
at ConvertClass_1..cctor()
For more information, see Help and Support Center at [URL] We have tried options like giving permissions to ASPNET account in the WMI services under 'Component Services' but to no avail. Has anybody else faced this issue?
suddenly, with my Visual Studio 2008 I can no longer debugging my web applications (ASP.NET 3.5). I obtain this error: Unable to start debugging on the web server. Click Help for more information. Auto-attach to process [8360] w3wp.exe' on machine 'DELL' failed. The weird thing is that I haven't done special changes to my IIS.
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