c# - 请求被中止：操作已超时

Question

只是想补充一点，在添加了这个问题中给出的代码之后，我没有发现这个错误再次发生。我认为垃圾收集做到了。

我正在努力处理上述错误。我有两个 asp.net web 应用程序。其中一个被视为服务器，另一个被视为客户端。我正在使用 Hessian 编码方法来处理 Web 请求和响应。

最初，我的客户端和服务器 100% 正确地相互响应。但一段时间后，我的客户端停止联系我的服务器，我收到此错误：

请求被中止：操作已超时

我已经尝试了很多我在互联网上找到的东西来解决我的问题。我做的第一件事是关闭请求和响应流。

然后我添加了以下属性：

request.KeepAlive = false;
request.Timeout = 5000;
request.Proxy = null;

request.ServicePoint.ConnectionLeaseTimeout = 5000;
request.ServicePoint.MaxIdleTime = 5000;

之后我添加了 ReadWriteTime 和 GC.Collect()。

但我所有的努力都没有结果。

此问题仅发生在 GoDaddy 服务器上，我的项目在我的本地服务器和另一台物理服务器上运行良好。从本地主机运行项目时，我也没有收到此错误。

仅当我部署到我的 GoDaddy 服务器或我将本地客户端连接到我的 GoDaddy 服务器时才会发生这种情况。

从日志中我可以看到请求停止到达服务器端。

这是我的最终代码：

// Send Request to Edge Server. Will receive a response as an Encoded stream
        String infoMessage = "userId Is: " + request.Info.UserId.AsString() + " Session Id is: " + request.Info.SessionId.AsString();
        String logMessage = "inside Invoke: " + infoMessage;
        Stream requestStream = null;
        HttpWebResponse webResponse = null;
        Stream responseStream = null;
         HttpWebRequest webRequest=null;
        try
        {
            // Construct web request
            logMessage = "Creating webrequest to: " + url + " " + infoMessage;
            webRequest = (HttpWebRequest)WebRequest.Create(url);
            webRequest.ContentType = encoderType.Trim().ToLower();
            webRequest.Method = REQUEST_METHOD;
            webRequest.Timeout = 120000;
            webRequest.ReadWriteTimeout = 120000;
            webRequest.KeepAlive = false;
            webRequest.Proxy = null;
            webRequest.ServicePoint.ConnectionLeaseTimeout = 5000;
            webRequest.ServicePoint.MaxIdleTime = 5000;
            logMessage = logMessage + "Timeout is 5000 Keep Alive False";


            logMessage = "timout is: " + webRequest.Timeout.ToString() + logMessage;
            // Encode Request object as Stream
            requestStream = webRequest.GetRequestStream();
            EncoderFactory.GetInstance(this.encoderType).Encode(requestStream, request);
            logMessage = "going to getresponse" + logMessage;
            webResponse = (HttpWebResponse)webRequest.GetResponse();
            logMessage = "Response returend" + logMessage;
            // Recieve web response
            String contentType = webResponse.ContentType;
            logMessage = "going to get response stream" + logMessage;
            responseStream = webResponse.GetResponseStream();

            // If response Content Type is 'text/html' then assume it's an error message
            if (contentType.ToLower().Trim().StartsWith("text/html"))
            {
                StreamReader reader = new StreamReader(responseStream, Encoding.Default);
                String errorMessage = reader.ReadToEnd();
                reader.Close();
                return new ErrorResponse(-1000, logMessage + " " + errorMessage);
            }
            else if (contentType.ToLower().Trim().StartsWith(EncoderFactory.ENCODER_TYPE_HESSIAN))
            {
                // Decode Response object from Stream
                return (Response)EncoderFactory.GetInstance(this.encoderType).Decode(responseStream);
            }
            else
            {
                return new ErrorResponse(-1001, "Invalid response - ContentType='" + contentType + "'");
            }
        }
        catch (Exception ex)
        {

            return new ErrorResponse(-1002, "Exception is -1002 and Message is = " + ex.Message + " " + logMessage + ".");
        }
        finally
        {

            // Close request stream
            if (requestStream != null)
            {
                try
                {
                    requestStream.Flush();
                    requestStream.Close();
                }
                catch { }
            }

            // Close web response
            if (webResponse != null)
            {
                try
                {
                    webResponse.Close();
                }
                catch { }
            }

            // Close response stream
            if (responseStream != null)
            {
                try
                {
                    responseStream.Flush();
                    responseStream.Close();
                }
                catch { }
            }
            GC.Collect();
        }
    }