GetRequestStream Stopping in Array

Question

I have a list of json strings that I am trying to loop through and post to a WebService. It loops through the first two just fine, then just stops on the 3rd iteration (this happens on line 14). No errors or anything, it just seems to stop. Any ideas?

    private static void CacheGetDataUrl(Guid sessionGuid)
    {
        var tokens = Driver.GetDataPostValues();
        foreach (var token in tokens)
        {
            try
            {
                var buffer = Encoding.UTF8.GetBytes(token.Replace("session_identifier", sessionGuid.ToString()));
                var request = (HttpWebRequest)WebRequest.Create(GetDataUrl);
                request.Timeout = 1000000;
                request.Method = "POST";
                request.ContentType = "application/json; charset=utf-8";
                request.ContentLength = buffer.Length;
                using (var postData = request.GetRequestStream())
                {
                    postData.Write(buffer, 0, buffer.Length);
                    postData.Close();
                }
                Console.WriteLine("Response requested for URL {0}", GetDataUrl); 
                Log.Info(String.Format("Response requested for URL {0} using parameters \r\n{1}", GetDataUrl, token));
            }
            catch (Exception)
            {
                Console.WriteLine("Error occurred requesting response for URL {0} using parameters \r\n{1}", GetDataUrl, token);
                Log.Error(String.Format("Error occurred requesting response for URL {0} using parameters \r\n{1}", GetDataUrl, token));
            }
        }

    }

Answer 1

Altering the method with a few new properties, and aborting the request after it's received seems to have resolved the problem.

    private static void CacheGetDataUrl(Guid sessionGuid)
    {
        var tokens = Driver.GetDataPostValues();
        foreach (var token in tokens)
        {
            try
            {
                var buffer = Encoding.UTF8.GetBytes(token.Replace("session_identifier", sessionGuid.ToString()));
                var request = (HttpWebRequest)WebRequest.Create(GetDataUrl);
                request.KeepAlive = false;
                request.Timeout = System.Threading.Timeout.Infinite;
                request.ProtocolVersion = HttpVersion.Version10;
                request.Method = "POST";
                request.ContentType = "application/json; charset=utf-8";
                request.ContentLength = buffer.Length;
                request.ServicePoint.ConnectionLimit = 250;
                using (var postData = request.GetRequestStream())
                {
                    postData.Write(buffer, 0, buffer.Length);
                    postData.Close();
                }

                request.Abort();

                Console.WriteLine("Response requested for URL {0}", GetDataUrl); 
                Log.Info(String.Format("Response requested for URL {0} using parameters \r\n{1}", GetDataUrl, token));
            }
            catch (Exception)
            {
                Console.WriteLine("Error occurred requesting response for URL {0} using parameters \r\n{1}", GetDataUrl, token);
                Log.Error(String.Format("Error occurred requesting response for URL {0} using parameters \r\n{1}", GetDataUrl, token));
            }
        }
    }