????? ??????

Select the product you need help with

PRB: ??? System.InvalidOperationException ??? ??????? HttpWebRequest ??????? ???????? HttpWebResponse ?? ??????? ?? ???? ???? ???????

???? ???????: 815637 - ??? ???????? ???? ????? ????? ??? ???????.

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???????

??? ??????? System.Net.HttpWebRequest ????? System.Net.HttpWebResponse ?? ????? ?????? ???? ?????? ????? ?? ????? ????? ????? ???????:

System.InvalidOperationException: ??? ?? ??? ?????? ????? ??? ????? ?? ???? ThreadPool ?????? ???????

???? ??? ?????? | ????? ???????

System.Net.HttpWebRequest ? System.Net.HttpWebResponse ???? ?????? ??? ????? ??????? ???????? ??? ?????????. ??? ????? ??? ??? ?????? ? ?????? ASP.NET ???? ????? ???? ?? ???? ThreadPool. ????? ?? ??? ASP.NET ??? ???? ????? ??? System.Net.HttpWebRequest ?????? ????? ????? ????? ?? ??? ????? ?? ????? ????????.

???? ??? ?????? | ????? ???????

???? ??????

??????? ?????? ??? ??? ??????? ?????? ???? ????? ???????:

??????? ???? ???? ?????? ?? ????????? ???????? ???? ????????? ?????? ???? ?????.
????? ???? ????? ???????? ???????? ????????? ????.
?? ???? ??????? ASP.NET ?? ????? ??????? ???????? ?? Microsoft "??? 5.0 ?? ???? ????? ????? ??? ???? ???? ??????? ?? Machine.config ?????. ?????? ????? ???? ??????? ???????:
1. ??? ????? Machine.config ?? ?????? \CONFIG Version \Microsoft.NET\Framework\ %Systemroot%.
2. ?? ?????? <processmodel>????? Machine.config ?????? ??????maxWorkerThreads ????? maxIoThreads ??? ???? ??? ?? ?????? ??????? ?????? ?? CPU. ??? ???? ??????? ??? ???? ??? ?????? 25 ??? ???? ???? ??????? ? ?????? ASP.NET ????? ??? ??????? (API) ?????? ????? ?????? ?? ????? ??? 25. ??? ???? ??????? ????? ??? ????? ???? ??? 50.
  
  ?????? ?????? ??????? CPU ????? ???? ?????? ????? ?????? ??? ??????.
3. ??? ????????? ??? ????? Machine.config.

???? ??? ?????? | ????? ???????

?????

????? ??? ?????? ??? ???????.

???? ??? ?????? | ????? ???????

??????? ????

????? ?? Microsoft Visual Studio .NET.
?? ??????? ???? ??? ??? ???? ?? ???? ??? ???????.
???? ??? ?????? Visual Basic ?? Visual C# ???????? ??? ????? Project ?? ???? ??? ????? ???? ?????? ??? ?????.

??????? ????? ?? ???? ????????? ???????? Class1 ???????? ???????? ???????? ???????? ??? ??? ???????:

??? Visual C# ?? .NET

using System;
using System.IO;
using System.Net;
using System.Text;
using System.Threading;
using System.Net.Sockets;

namespace threadTest
{
  
	class Class1
	{
		 public static void Main()
		{			
		// Set number of threads to be created for testing.
			int testThreads = 55;
			for(int i=0;i<testThreads;i++)
			{
				ThreadPool.QueueUserWorkItem(new WaitCallback(PoolFunc));
			}
			Console.ReadLine();
		}

		static void PoolFunc(object state)
		{
			int workerThreads,completionPortThreads;
			ThreadPool.GetAvailableThreads(out workerThreads,
				out completionPortThreads);
			Console.WriteLine("WorkerThreads: {0}, CompletionPortThreads: {1}", 
			workerThreads, completionPortThreads);
			Thread.Sleep(10000);
			
			string url ="http://www.msn.com";         
			
			HttpWebRequest myHttpWebRequest ; 
			HttpWebResponse myHttpWebResponse=null ;        
			// Creates an HttpWebRequest for the specified URL.    
			myHttpWebRequest = (HttpWebRequest)WebRequest.Create(url); 
			// Sends the HttpWebRequest, and waits for a response.
			myHttpWebResponse = (HttpWebResponse)myHttpWebRequest.GetResponse();            
			myHttpWebResponse.Close();
		}
	}
}

Visual Basic .NET ???

Imports System.IO
Imports System.Net
Imports System.Text
Imports System.Threading
Imports System.Net.Sockets

Module Module1

   Sub Main()
      'Set number of threads to be created for testing.
      Dim testThreads As Integer = 55
      Dim i As Integer

      For i = 0 To testThreads
         ThreadPool.QueueUserWorkItem(New WaitCallback(AddressOf PoolFunc))
      Next
      Console.ReadLine()

   End Sub
   Public Sub PoolFunc(ByVal state As Object)

      Dim workerThreads, completionPortThreads As Integer

      ThreadPool.GetAvailableThreads(workerThreads, completionPortThreads)

      Console.WriteLine("WorkerThreads: {0}, CompletionPortThreads: {1}", workerThreads, completionPortThreads)
      Thread.Sleep(10000)
      Dim url As String = "http://www.msn.com"
      Dim myHttpWebRequest As HttpWebRequest
      Dim myHttpWebResponse As HttpWebResponse = Nothing
      ' Creates an HttpWebRequest for the specified URL. 
      myHttpWebRequest = CType(WebRequest.Create(url), HttpWebRequest)
      'Sends the HttpWebRequest, and waits for a response.
      myHttpWebResponse = CType(myHttpWebRequest.GetResponse(), HttpWebResponse)
      myHttpWebResponse.Close()
   End Sub
End Module

?? ??????? ????? ? ???? ??? "????" ?????? ???????. ??? ?? ??? WorkerThreads ???????? ??? 0 ? ????? ????? ????? ??????? ?? ??? "?????? ?????".

???? ??? ?????? | ????? ???????

?????

????? ?? ?????????? ?? ?????? ????? Microsoft ??????? ??? ?????:

????? ???? ???? ??????? ?? .NET Framework
http://msdn2.microsoft.com/en-us/library/ms973903.aspx

(http://msdn2.microsoft.com/en-us/library/ms973903.aspx)

<processmodel>??????
http://msdn2.microsoft.com/en-us/library/7w2sway1(vs.71).aspx

(http://msdn2.microsoft.com/en-us/library/7w2sway1(vs.71).aspx)

???? ??? ?????? | ????? ???????

???????

???? ???????: 815637 - ????? ??? ??????: 26/????�??????/1428 - ??????: 1.4

????? ???

Microsoft ASP.NET 1.0
Microsoft ASP.NET 1.1

kbmt kbnamespace kbweb kbxml kbwnet kberrmsg kbconfig kbdev kbthread kbprb KB815637 KbMtar

????? ????

???: ??? ????? ??? ?????? ???????? ?????? ????? ???? ????? ?????????? ????? ?? ????????? ?????? ????. ???? ???? ?????????? ???? ?? ???????? ???????? ?????? ????????? ????? ????????? ???????? ????? ???????? ?????? ?? ?????? ??? ?? ???????? ???????? ?? ????? ??????? ?????? ??? ??????? ?????? ??. ?????? ?? ???? ??? ??????? ???????? ????? ?? ???? ????? ?????? ??? ????? ??? ????? ??????? ?? ????? ?? ?????? ??? ??? ??????? ??????? ?? ????? ????? ????? ????? ?????. ?? ????? ???? ?????????? ??????? ??? ????? ?? ??????? ?? ????? ?????? ?? ??? ????? ?? ????? ??????? ?? ???????? ?? ??? ???????. ???? ???? ?????????? ???????? ??? ????? ?????? ??????? ??????

???? ??? ????? ??????? ?????? ??????????815637

(http://support.microsoft.com/kb/815637/en-us/ )

???? ??? ?????? | ????? ???????