Unable to read data from the transport connection: The connection was closed error in console application

Question

I have this code in console application and it runs in a loop

 try
 {
      HttpWebRequest request = (HttpWebRequest)WebRequest.Create(search);
      request.Headers.Add("Accept-Language", "de-DE");
      request.Method = "GET";
      request.Accept = "text/html";
      using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
      {
           using (StreamReader reader = new StreamReader(response.GetResponseStream(),
                    Encoding.ASCII))
           {
                string html = reader.ReadToEnd();
                    FindForMatch(html, url);
           }
      }
 }
 catch (Exception ex)
 {
      throw new Exception(ex.Message);
 }

after few loops it gives

Unable to read data from the transport connection: The connection was closed

error. any idea why this happen? thanx..

Could be anything. Perhaps the server dont like you hammering it. — leppie, Jul 04 '12 at 06:40
Btw, don't re-throw your exception, better log your exception or let the exception bubble up to a higher location, and catch it there — JohnnBlade, Jul 04 '12 at 06:45

score 24 · Accepted Answer · answered Jul 04 '12 at 09:31

24

After adding

request.KeepAlive = false;
request.ProtocolVersion = HttpVersion.Version10;

it works fine..

I found it form this blog post

WebRequest and Unable to read data from the transport connection Error

answered Jul 04 '12 at 09:31

Darshana

2,462
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1

Hmm, I have no idea why this works, but it does! Weird! Maybe it's IIS Express or something. – fourpastmidnight Sep 13 '12 at 04:06
1

Thank you very much, it worked in my case, I was struggling for some time. – Amit Bhagat Jan 09 '16 at 13:13

score 0 · Answer 2 · answered Jul 04 '12 at 06:42

0

I just tried the code, looping 10 times to load google.com and it worked for me. Is there something special about search - perhaps try replacing it with another uri. I did not include findForMatch - I assume it is not doing anything that would cause the exception.

answered Jul 04 '12 at 06:42

Michael

8,891
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42

its not happening all the time. exception come from `reader.ReadToEnd()' – Darshana Jul 04 '12 at 06:49

score -5 · Answer 3 · answered Jul 04 '12 at 06:42

-5

Try disposing the reader in the finally block of your try catch

answered Jul 04 '12 at 06:42

JohnnBlade

4,261
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Unable to read data from the transport connection: The connection was closed error in console application

3 Answers3

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