Web service sporadic error : The underlying connection was closed: The remote name could not be resolved

Hi,

We have a web service which works fine most of the time but has been giving sporadic "The underlying connection was closed: The remote name could not be resolved"  errors.

The exception stack traces the source of the error to the following -

Exception: System.Net.WebException
Message: The underlying connection was closed: The remote name could not be resolved.
Source: System
   at System.Net.HttpWebRequest.CheckFinalStatus()
   at System.Net.HttpWebRequest.EndGetRequestStream(IAsyncResult asyncResult)
   at System.Net.HttpWebRequest.GetRequestStream()....

Anyone has an idea what it could be?

Looks like this is the section of the code causing the problem based on the exception statck trace

webReq is the System.Net.HttpWebRequest object.

This is a section of the related code:

byte[] buffer = Encoding.UTF8.GetBytes(strData);

 webReq.Method ="POST";

webReq.ContentType = "application/x-www-form-urlencoded";

webReq.ContentLength = buffer.Length;

// open a stream for writing

Stream postData = webReq.GetRequestStream();

postData.Write(buffer, 0, buffer.Length);

postData.Flush();

postData.Close();

Any feedback would be really appreciated!

jbhan

 

 

 

 

 

 

0
jbhan
10/29/2008 4:23:42 PM
asp.net.xml-web-services 7071 articles. 0 followers. Follow

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It seems the service url is not accessible or you used an illegal url.

Can you verify this url is accessible from internet explorer?
Maybe you need to define a proxy in order to reach this url.
http://webservices20.blogspot.com/
Web Services Performance, Interoperability And Testing Blog
0
yaronn01
10/29/2008 6:55:45 PM

Yes, the problem was that the web server was not able to resolve the name of the webservice url.

We have a web farm with multiple servers and the problem seemed sporadic because it was only this one web server which was not able to resolve the name of the server hosting the webservice, all the other web servers were fine. When the page was served by the bad server it would result in the error and when it was any of the other good ones things were fine.

Thanks for your reply! :)

jbhan

 

0
jbhan
10/30/2008 6:35:03 PM

Please mark that reply as "Answered" so that others with the same problem will know that you have found a solution here.


John Saunders | MVP – Connected System Developer
0
johnwsaunders3
11/1/2008 12:15:41 AM
Reply:

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