Server Closed The Connection Without Sending Any Data
Jul 2, 2012
I have a web application which runs perfectly in my local machine. But the same when hosted in server, for some pages (which gets large amounts of data) gives me:-
Error 324 (net::ERR_EMPTY_RESPONSE): The server closed the connection without sending any data.-- in chrome
Server not found-- in firefox
and Internet Explorer cannot display the webpage-- in IE
I went through lot of other forums and some were suggesting to put this is web.config file
I have created a webservice in 2010. And when I call it from my web application sometimes,It generates the follwoing errors:-1. The underlying connection was closed: A connection that was expected to be kept alive was closed by the server.2. Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.I have already tried increasing excutonTimeOut etc.
I'm using Visual Studio 2008, and my database is SQL Server 2000.
I want to add a connection to the Server Explorer in VS. The Data source is Microsoft SQL Server (SqlClient). After entering in all my information and I click Test Connection, it is successful.
But when I click OK, I get the error:
Unable to add data connection. ExecuteScalar requires an open and available connection. The connection's current state is closed.
This error stopping my work in my crucial time. The error is "The underlying connection was closed: The connection was closed unexpectedly.".There are multiple WCF service I created in my project. But when I am requesting only one service this error is coming. I compare with other service, no difference. The service works fine in the morning, but afternoon it stops working and raising error.
I installed Silverlight 3.0 Tools for 2008 Sp1, Silverlight 3.0 Developer, WCF RIA Beta and Silverlight 4.0 runtime in my system in the morning. After getting this error I uninstalled WCF RIA Beta. But same issue.Could not find any solution. Please assist me how to solve this issue.
I have my wcf service and it runs fine. Then from my asp.net application I am trying to connect to this service. Everything is ok, request from asp.net is received in service (as I can debug code) and then when it returns to client I have the following error:underlying connection was closed: The connection was closed unexpectedlyMy contract on WCF service is as follows:
And WCFResponseGetAllProducts , WCFRequestGetAllProducts classes have [DataContract] attributes. Members of those classes have [DataMember] attribute. However when I added another method to my contract:
[OperationContract()] int Test();
then I can execute it from asp.net mvc application without a problem. PS. I host my wcf service in default web server in visual studio 2010 at the moment
I have a Silverlight 3 application. It accesses WCF services that run on IIS. If I let the application sit for a while with no activity, it appears that I lose my connection to the server/login authentication, and my service calls fail.
It would appear that I am being logged out for security purposes, but this is not an area that I understand well. We are using a federated STS to create an encrypted token for security.
Can someone explain what is happening (if my description is clear enought), and how can I detect this event in my Silverlight application and redirect them back to the login page.
Im working with this Arquitecture : Web Service -> DLL(Xml Translator) -> Asp.net.Everything works fine, but,i have a process that takes about 23 minutes, in that time i show a "loading screen" that avoid the user to do anything, but after 20 mins while the web service is working and after debug my code, i get this error :
"The underlying connection was closed: The connection was closed unexpectedly"
Then, my "loading screen" keep visible until the web service completes the work, and after that, the "loading" hides and the web form shows my gridview empty.(its should show data).
I'm getting the "The underlying connection was closed: The connection was closed unexpectedly." error while trying to POST using the HttpWebRequest class on the production server, on my dev machine it works fine.
I originally tried using the WebClient class but I switched to the HttpWebRequest to try some of the suggestions I found while researching the issue (such as setting KeepAlive to false, PreAuthenticate true and ProtocolVersion to 1.0).
Since it's only happening on the production server, i'm guessing that it might have something to do with IIS.
Here's my code
[Code]....
If set the Target Framework (I used a new project for testing) to 2.0 (I didn't test every version of the framework) it works. I'm guessing that .net handles the security differently in .net 4.0.
From the last few days I am struggling with the error
"Failed to generate a user instance of SQL Server due to failure in retrieving the user's local application data path. Please make sure the user has a local user profile on the computer. The connection will be closed." I hav created an asp.net web application with membership shcema. It works fine an my developement machine but when I published it on my web server.
I want to send a email without using gmail domain but its giving error given below...
The SMTP server requires a secure connection or the client was not authenticated. The server response was: Relaying not allowed - sender domain not local
Now, these two operations are done with two different connections (say con1 and con2). Both these connections are enlisted in the same TransactionScope.
Before the delete/insert operations the connections are opened and immediately closed.
So, now if the insert fails, then how is the delete rollbacked since con1 has been closed?
I'm getting a lot of these error messages in my logs on one of my servers and intermittently on two others.Googling didn't reveal very much information, mostly related to file uploads or downloads being interrupted. My pages are basically just text files with "ok" in them that only have .aspx extension for future plans, there's no actual code powering the pages. Servers are all Windows Server 2008 RC2 x64 running IIS7 / ASP.NET 4.Statistically it's happening well under 1% of the time but because of the volume of traffic that still clutters my event log with 2 or 3 of these messages per minute.Edit:tracked down the problem, setting buffering to true stopped it occurring.
In my asp.net +vb+access web i have made a login page and the code is as under
Dim connectString As String = "Provider=Microsoft.Jet.OLEDB.4.0;" & _ "Data Source=C:webauth.mdb" Dim con As OleDbConnection = New OleDbConnection(connectString) con.Open() Dim cmd As New OleDbCommand("select * from Users where userid =@userid and Password=@password", con) cmd.Parameters.AddWithValue("@userid", txtUserName.Text)
[Code] ....
I am getting error The connection was not closed. The connection's current state is open.
I have a WCF service which has 4 Operation contracts.
I have added a new contract and it gets the data from database and returns the result set.
I can access the new contract and the service get the correct result set. But while passing the result set to the client I get the error of The underlying connection was closed: The connection was closed unexpectedly.
What are the steps to follow after adding a new contract like new binding etc.
I have VS 2010 professional. I am trying to open "ASP.Net Configuration" through Project -> ASP.Net Configuration.
It pops up the Notification about the ASP.Net Development Server localhost but doesn't open ASP.Net Configuration in the default browser.I clicked on the Root Url (by double clicking on the 'development server' at the right bottom from Notification Manager).
It throws following error
"An error was encountered. Please return to the previous page and try again."
Clicking on "How do i use this tool".It opened page with error.
I'm receiving the following error occasionally when calling web service using a .NET 4.0 web application."The underlying connection was closed: An unexpected error occurred on a send."All of the articles I've read regarding this issue are for the Framework 1.1.Is there any solution to this issue for using .NET framework 4.0?
I am consuming a third party web service wsdl using my .net aps.net page. And I am getting following error message. Cannt get to resolve it. Its working on my machine but not in my development machine. I have installed the certificate also in certificates on that machine.
Error --> The underlying connection was closed: An unexpected error occurred on a send.
I just installed sql server 2008 R2 on my computer. I am trying to connect to sql server throught my C# code and everytime I run the C# program,
I get this error "A network-related or instance-specific error occurred while establishing a connection to SQL Server.
The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) "
The connection string that I used in my web.config file is
[Code]....
I am not sure what am I doing wrong, but I followed this article below step by step and still I am getting the same error
I have situation where I need to authenticate a client across multiple web services. Basically each service needs to identify the client and know a few other small pieces of information about the client.
The way I have it working now is that the needed identifying information is stored in a session table in a database by the authenticating web server. The web server hands the client an string, which IDs the database entry and gets passed to the other web services. The web services then use this string to pull the needed information about the client from the database entry.
It has occurred to me that it might be possible to give the client an encrypted blob that contains the user ID and other needed information, which is rather small, and avoid using the database for this completely. The client would just pass around the blob (like the string in the previous paragraph) without needing to know what it contains, and only the web services would know how to decrypt it.
This should eliminate the need for the database to store the session information and would make the whole process a good bit simpler. With the database you have to worry about cleaning up old sessions and timeouts and so on.
So my question: is passing around sensitive data from service to service via client considered safe and acceptable? Is it possible to do this in a way that would eliminate worry about the client tampering with the data? What encryption algorithms would be good to use?
i have a website in our office which is a School. the website is an enrollment website which is available view internet, where the users (students) access the website to enroll almost simultaneously, select their subjects and schedules, etc.
this website is developed by someone who is no longger employed here. regular problem of the website is in times of enrollment, the students is experiencing slow processing when ever thay try to view/edit their information, subjects, etc. which are all in the database. a proposal was made and we have agreed to develop a new system that should run faster than the old system. access sql database to do Select/Update/Insert in the fastest way possible.
I have a data entry and editing form and in every data entry or update event, I have to send an email to a dynamic list of recipients. I have been sending the email as soon as the user clicks the save or edit buttons but am thinking of first saving the data to the database, and then sending the email later. I want to do this partly to improve the response time of the application as the email sending tends to take a long time than desired.
I have a function which allows me to quickly load SQL results into an SQLDataReader.
This is a very effective way for me to do this as it can be used for inserts, updates and selects very easily throughout my code.
However, I have noticed some potential memory issues with my site while using this (I keep having to do iisresets when working locally because all the pools are used up) so I am trying to use "Using" rather than "Dim" in an effort to ensure that the connection is always disposed.
I call the function in the following way:
Dim RS As SqlDataReader = SQL.Exec("sp_MyStoredProcedure " & ID) If RS.Read Then Return RS("Column_Name") End If RS.Close()
[Code].....
I now get the error "Invalid attempt to call Read when reader is closed" when calling the function on the line "If RS.Read Then".
