My WCF Service isnt restarting after the app pool recycles. I have no control over how often the pool is recycled (shared hosting) .How do I get the wcf service to restart on pool-recycle ?
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My application is running in a shared hosting environment. I do have a dedicated App Pool for my app. I've been doing some testing with 1st visits and precompile performance and have been tracking when my application starts up and shuts down.
In my Global.asax I have some logging code in Application_Start and Application_End. I can see from my logs generally when the application is idle and shuts down, then someone visits and it starts back up.
But, I also see cases where a shutdown is logged and then followed by another shutdown about 13 minutes later; without a startup in the middle.
I also see instances where there are two Startups in a row. I'm guessing these might be a recycle, but why wouldn't there be a shutdown log entry?
What I'd really like to know if there is a better way to track when my application starts, when it shuts down and if it is shutdown due to an idle pool, or from a recycle. I don't have access to the Windows Event Log so I need to do this from my app if possible.
I have a number of ASP.NET (4.0) web applications that appear to leak (a small amount) of memory during each request. It is such a small amount, that for most use-cases, it will not grow to become a problem for weeks or even months at a time. I generally try to be good with closing any connections managed by the application, avoiding state-variables (or instance variables for my singleton), etc. My question is this - is this normal behavior for ASP.NET applications? I had turned off the default (IIS 7) behavior of recycling the app pool after 20 minutes of being idle. I do this since the application takes a few minutes to build its internal cache, and I want to avoid negatively impacting the user experience (and having them wait for the application to start when they issue the request).
View 1 RepliesI'd like to describe strange issue I've noticed while analyzing my asp.net application in production and ask for some advice or opinion on the following matter.Application usually runs with some 80-90 MB of memory footprint. This seems stable since no memory leaks have been detected so far - no slight increase in memory usage over time. Yet, problem occurs when application pool recycles (I'm using shared hosting and judging by logs it occurs either when app is idle for 20 mins or every ~30 hours - something like that). The issue is that used memory almost doubles for some period on recycle - it goes to some 160-170 MBs without any explanation. This is confusing, since it is common claim that recycling should purge the memory and all other resources - at least I get it that way. System holds this amount of memory for some 7-8 hours and then memory usage drops to it's usual level of 90-100 MB, again, with no apparent reason (at least not know to me).
View 1 Repliesmy web applications app pool configuration is
PeriodicRestartMemory : 512000
PeriodicRestartPrivateMemory : 196608
although the virtual memory limit is higher than private memory, app pool is recycled with virtual memory limits exceeded errors in the event log (instead of private memory).
what is the reason for this? how could it exceed virtual memory limits before exceeding private memory limits? it seems that systems other allocations in virtual memory cause limits exceeded before applications private allocations exceed the limits, but what are those allocations of the system? or what is the root cause of this.
I use Form Based Authentication in my siteIn my login page I have:
FormsAuthentication.SetAuthCookie(user.userName, true)
All we have a global ships position tracking website which runs smoothly until IIS application pool recycles.When there is workerprocess recycling looks like session state expires as a result i loose all session data and when customer clicks refresh button he is redirected to login page.
In web.config Session state mode is set to InProc so i changed it to State Server but to my luck i have MAP object which is not serialiazable which is causing the maps from not appearing on the website.I tried adding serializable attribute to the object class but still not succesfull.Our website is accessed by our customers whose count is more than 1000.
Changing the session state mode from InProc to StateServer can really slow down the response time so
Is it good to go further fix the serailizable issues and move to state server?.
Is there any way I can retain my session data when application pool recyles?..
Stopping Application pool from recycling may not be a good idea considering health factor of web server.
I am working on Windows 2008 Server (64-bit). I want to execute my web service as a pure (native) 64 bit service. All the assemblies referred by the web service are currently built as 'AnyCPU'.
When I publish the web service to IIS, and configure it to run under a 64-bit application pool (by setting 'Enable 32-Bit applications' = false), attempt to access the web service gives the error 'Application is not a valid Win32 application' because of a BadImageFormatException. This appears to indicate that somewhere an attempt is being made to load a 32 bit assembly. But the error does not provide any information about which assembly was found with an incorrect format. I have checked all the assemblies in the bin folder using corflags and they are bit agnostic.
I tried using the fusion log and identified a bind failure with VJSharpCodeProvider (though my service is coded only in C#). The runtime is not able to find the VJSharpCodeProvider because it is present in the GAC as an x86 assembly.
Is VJSharpCodeProvider the cause of the problem? I guess this is not the case because of the type of exception (BadImageFormatException). If I am correct, then how do I identify the assembly that is causing this exception?
If I change the property 'Enable 32-Bit applications' to true for the application pool, the service works fine, but I need native 64-bit execution.
How do I add the WCF service built using VS2010 as a service reference to a Winforms app which is written in VB6?
View 1 RepliesI'm working on an ASP.NET app that keeps a lot of data cached. This data remains cached when I restart the app, so I have to reset IIS if I want to rerun the code that gets the data, otherwise it's just taken from the cache. Is there a way that I can automate this?
View 2 Replieshow to add the web service in my project and how to use it.
I am planning to use Autocomplete from ajax tool kit which needs a web service. Web service will be prepared and given to me, and i need to use it in my project for autocomplete control.
step by step procedure to add web service in my project and also how can I create a web service if i have to create my own service.
I m retrieving a pdf file from another application using Web service. After retrieving that file, make some validations and after that I want to delete that file. I want to delete that file in another application database. how can I delete that file ? I m unable to code that one. Can anyone give some startup.
View 6 RepliesI have installed Web Deployment service on a Windows 2008 machine, started using one click publishing in VS2010 and it works.
With one glitch, even though I change a view only file (like a *.cshtml razor file which is not compiled), web site is restarted. Therefore user sessions are lost. Maybe I am missing something so trivial, because it knows uploading only the changes.
Does anyone know whether restarting can be prevented using one click publishing or not?
If not, suggestions are welcome ^_^
We have two application created one for webservice and other application will call the methoddefined in webservice .The problem is we want to add webservice in our application dynamically
View 4 Repliescreated project as a WCF Service application and now according to recuriment that needs to be converted as a self hosting applicationConverting WCF service app to Self hosting app
View 1 RepliesI have an asp.net application which uses session for user management. So if the application is restarted users will loose their works. I have some components used by this asp.net application and those components (class libraries in Bin folder) have configurations. I want to save configurations of those components somewhere and change them from back-end (administration panel) and the components use the updated configs but still application should not be restarted (changing web.config will result in application restart).
View 2 RepliesPossible Duplicate:
How to prevent an ASP.NET application restarting when the web.config is modified?
I am working on WCF Data service which imported stored procedure, as below.
[WebGet]
public List<GetMTSearchResultTest_Result> GettMTSearchResultTest()
{
MediaMarketResearch_PRODEntities ent = new MediaMarketResearch_PRODEntities();
return ent.GetMTSearchResultTest().ToList();
}
when i consuming this in my client application it says error as "The closed type MMRClient.MMRServiceReference.GetMTSearchResultTest_Result does not have a corresponding element settable property." I am getting this error while bind to the grid view as below.
DataServiceContext context = new DataServiceContext(new [URL])); IEnumerable<GetMTSearchResultTest_Result> empResult = context.Execute<GetMTSearchResultTest_Result>(new Uri [URL];
GridView1.DataSource = empResult;
GridView1.DataBind();
Note: I imported this stored proc as complex type.
Currently I have project in ASP.NET 2.0 and I wanted to implement web services using my existing code.
View 2 RepliesI want to create a WCF Service to transfer data to our clients application(WPF). The Data I am trying to send is as follows.
ID Code Description unit Rate
1 104200000 LIVE GOAT NOS 25
2 104200000 LIVE GOAT2 NOS 25
3 104200030 LIVE GOAT3 KGS 10
4 104202030 Water LTR 5
and so on till ~ 11000 records.
What I have done so far is. Created a service which return a list of data.
public List<Classes.TariffData> GetTariffData() { var currentTariffData = new List<Classes.TariffData>(); using (var myConnection = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString)) { const string query = "select a.ID,a.Code,a.Description,a.unit,a.rate,a.rate3 from tariff.dbo.tariffdata a, tariff.dbo.code_history b where a.id = b.id and b.endofvalidity is null"; using (var myCommand = new SqlCommand(query, myConnection)) { using (var ad = new SqlDataAdapter(myCommand)) { var dt = new DataTable("tariff"); ad.Fill(dt); currentTariffData.AddRange(from DataRow row in dt.Rows select new Classes.TariffData { Id = int.Parse(row["Id"].ToString()), Code = row["Code"].ToString(), Description = row["Description"].ToString(), Unit = row["unit"].ToString(), Rate = row["rate"].ToString(), Rate3 = row["rate3"].ToString() }); return currentTariffData; } } } }
Class is as follows
public class TariffData { public int Id { get; set; } public string Code { get; set; } public string Description { get; set; } public string Unit { get; set; } public string Rate { get; set; } public string Rate3 { get; set; } }
If i Limit the number of data by using const string query = "select top 300 a.ID,a.Code,a.Description. The Service works fine. But if I remove the top 300 part I get an error. What is your advice if I want a service to allow our client applications to update their data by using WCF. (11000 records.) I am using visual Studio 2010. C# .Net 4.0
I have made changes to my global.asax file so i want to recycle my web application to make the changes work. How to safely recycle my asp.net web application in production server?
View 3 RepliesI am caching a file in ttpContext.Current.Application object. Now when I change the values in file, it does not get reflected in the application (I am reading the values from the file for app version).
Even after restarting the app pool and the website in IIS, the changes does not reflect. I dont want to restart IIS.
I have a web service that has a CreateReport method that generates a report based on the specified criteria.
When I call this method Synchronously using a Windows Application or Console Application, the call works fine and the report is created.
When I call this method ASynchronously (CreateReportASync) using Windows Application the report is created.
When I call this method ASynchronously (CreateReportASync) using Console Application the web service does not even get the call.
I am using VS2005 and .Net Framework 2.0. So the proxy is automatically created with the Async methods. I am not really interested the result of the method call, so I do not add a Callback Delegate.
I am trying to post data from vb.net application to web service asmx that is located on server! For posting data from vb.net application I am using this code:
Public Function Post(ByVal url As String, ByVal data As String) As String
Dim vystup As String = Nothing
Try
'Our postvars
Dim buffer As Byte() = Encoding.ASCII.GetBytes(data)
'Initialisation, we use localhost, change if appliable
Dim WebReq As HttpWebRequest = DirectCast(WebRequest.Create(url), HttpWebRequest)
'Our method is post, otherwise the buffer (postvars) would be useless
WebReq.Method = "POST"
'We use form contentType, for the postvars.
WebReq.ContentType = "application/x-www-form-urlencoded"
'The length of the buffer (postvars) is used as contentlength.
WebReq.ContentLength = buffer.Length
'We open a stream for writing the postvars
Dim PostData As Stream = WebReq.GetRequestStream()
'Now we write, and afterwards, we close. Closing is always important!
PostData.Write(buffer, 0, buffer.Length)
PostData.Close()
'Get the response handle, we have no true response yet!
Dim WebResp As HttpWebResponse = DirectCast(WebReq.GetResponse(), HttpWebResponse)
'Let's show some information about the response
Console.WriteLine(WebResp.StatusCode)
Console.WriteLine(WebResp.Server)
'Now, we read the response (the string), and output it.
Dim Answer As Stream = WebResp.GetResponseStream()
Dim _Answer As New StreamReader(Answer)
'Congratulations, you just requested your first POST page, you
'can now start logging into most login forms, with your application
'Or other examples.
vystup = _Answer.ReadToEnd()
Catch ex As Exception
MessageBox.Show(ex.Message)
End Try
Return vystup.Trim() & vbLf
End Function
I have a Silverlight application using a WCF service hosted in IIS. I make use of some aspects of ASP.NET. I have the following folder structure for my application:
inetput
wwwroot
myapp
reports
{user-guid-folders}
report1.pdf
report2.pdf
App_Data (folder)
bin (folder)
Client_Bin (folder)
(various .aspx files, plus web.config, etc.)
The application dynamically generates reports and puts them in a folder with a GUID for the name which is unique to the user. This all works fine. However, when the user logs out I was cleaning up and deleting the PDF files in their folder, then deleting their GUID folder.
Deleting the files works fine, but if I delete the folder, the application recycles (which then removes all other users' sessions - I get a Session_OnEnd event for every user's session, and an Application_OnEnd event. The next user request causes the whole application to restart. So, while I can fix this by not deleting the GUID folder (which my application itself created), what is the reason for this? Is there any way I can prevent this from happening?
