Question

我收到如下所示的例外情况。 BizTalk能够在负载很轻的情况下调用该服务。但是，一旦我增加负载并且传输的消息数量在一段时间后会增加，我会继续收到有关所有服务调用的消息。

Event Type: Error
Event Source: BizTalk Server 2006
Event Category: (1)
Event ID: 5799
Date:  11/21/2011
Time:  12:55:38 PM
User:  N/A
Computer: CLBIZBTS07S
Description:
The description for Event ID ( 5799 ) in Source ( BizTalk Server 2006 ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a 

remote computer. You may be able to use the /AUXSOURCE= flag to retrieve this description; see Help and Support for details. The following information is part of the event: sndManageServiceEndPoint_WCF, 

http://service.com:8100/ManageService.svc/ws, The adapter failed to transmit message going to send port "sndManageServiceEndPoint_WCF" with URL "http://service.com:8100/ManageService.svc/ws". It will be 

retransmitted after the retry interval specified for this Send Port. Details:"System.TimeoutException: Client is unable to finish the security negotiation within the configured timeout (00:01:00).  The 

current negotiation leg is 3 (00:00:20.6239920).   ---> System.TimeoutException: The request channel timed out attempting to send after 00:00:20.6239920. Increase the timeout value passed to the call to 

Request or increase the SendTimeout value on the Binding. The time allotted to this operation may have been a portion of a longer timeout. ---> System.TimeoutException: The HTTP request to 

'http://service.com:8100/ManageService.svc/ws' has exceeded the allotted timeout of 00:00:20.6230000. The time allotted to this operation may have been a portion of a longer 

timeout. ---> System.Net.WebException: The operation has timed out
   at System.Net.HttpWebRequest.GetRequestStream(TransportContext& context)
   at System.Net.HttpWebRequest.GetRequestStream()
   at System.ServiceModel.Channels.HttpOutput.WebRequestHttpOutput.GetOutputStream()
   --- End of inner exception stack trace ---
   at System.ServiceModel.Channels.HttpOutput.WebRequestHttpOutput.GetOutputStream()
   at System.ServiceModel.Channels.HttpOutput.Send(TimeSpan timeout)
   at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.SendRequest(Message message, TimeSpan timeout)
   at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout)
   --- End of inner exception stack trace ---
   at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout)
   at System.ServiceModel.Security.IssuanceTokenProviderBase`1.DoNegotiation(TimeSpan timeout)
   --- End of inner exception stack trace ---

Server stack trace: 
   at System.ServiceModel.Security.IssuanceTokenProviderBase`1.DoNegotiation(TimeSpan timeout)
   at System.ServiceModel.Security.SspiNegotiationTokenProvider.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Security.WrapperSecurityCommunicationObject.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
   at System.ServiceModel.Security.SecurityUtils.OpenCommunicationObject(ICommunicationObject obj, TimeSpan timeout)
   at System.ServiceModel.Security.SymmetricSecurityProtocol.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Security.WrapperSecurityCommunicationObject.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
   at System.ServiceModel.Channels.SecurityChannelFactory`1.ClientSecurityChannel`1.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
   at System.ServiceModel.Security.SecuritySessionSecurityTokenProvider.DoOperation(SecuritySessionOperation operation, EndpointAddress target, Uri via, SecurityToken currentToken, TimeSpan timeout)
   at System.ServiceModel.Security.SecuritySessionSecurityTokenProvider.GetTokenCore(TimeSpan timeout)
   at System.IdentityModel.Selectors.SecurityTokenProvider.GetToken(TimeSpan timeout)
   at System.ServiceModel.Security.SecuritySessionClientSettings`1.ClientSecuritySessionChannel.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannel.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)

Exception rethrown at [0]: 
   at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
   at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
   at System.ServiceModel.ICommunicationObject.Open()
   at Microsoft.BizTalk.Adapter.Wcf.Runtime.WcfClient`2.GetChannel[TChannel](IBaseMessage bizTalkMessage, ChannelFactory`1& cachedFactory)
   at Microsoft.BizTalk.Adapter.Wcf.Runtime.WcfClient`2.SendMessage(IBaseMessage bizTalkMessage)". .

在服务端，我在端点中设置了maxReceivedMessageSize =“2147483647” 并在行为部分我设置

 <serviceThrottling
                maxConcurrentCalls="16"
                maxConcurrentInstances="2147483647"
                maxConcurrentSessions="10"/>

这两个设置没有帮助。

当我打开wcf服务上的跟踪时，我看到了这些类型的错误

Activity Name Process action 'http://schemas.xmlsoap.org/ws/2005/02/trust/RST/SCT/Cancel'.
Time 2011-11-22 15:03:12.5301
Level Error
Source System.ServiceModel
Process w3wp
Thread 32
Computer FRA1BSHR01S
Trace Identifier/Code http://msdn.microsoft.com/en-US/library/System.ServiceModel.Diagnostics.ThrowingException.aspx


System.ServiceModel.EndpointNotFoundException, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089

There was no channel that could accept the message with action 'http://schemas.xmlsoap.org/ws/2005/02/trust/RST/SCT/Cancel'.

System.ServiceModel.Dispatcher.ErrorBehavior.ThrowAndCatch(Exception e, Message message)
System.ServiceModel.Channels.DatagramChannelDemuxer`2.ProcessItem(TInnerItem item)
System.ServiceModel.Channels.DatagramChannelDemuxer`2.HandleReceiveResult(IAsyncResult result)
System.ServiceModel.Channels.DatagramChannelDemuxer`2.OnReceiveComplete(IAsyncResult result)
System.ServiceModel.Channels.DatagramChannelDemuxer`2.OnReceiveCompleteStatic(IAsyncResult result)
System.ServiceModel.Diagnostics.Utility.AsyncThunk.UnhandledExceptionFrame(IAsyncResult result)
System.ServiceModel.AsyncResult.Complete(Boolean completedSynchronously)
System.ServiceModel.Channels.ReplyChannel.HelpReceiveRequestAsyncResult.OnReceiveRequest(IAsyncResult result)
System.ServiceModel.Diagnostics.Utility.AsyncThunk.UnhandledExceptionFrame(IAsyncResult result)
System.ServiceModel.AsyncResult.Complete(Boolean completedSynchronously)
System.ServiceModel.Channels.InputQueue`1.AsyncQueueReader.Set(Item item)
System.ServiceModel.Channels.InputQueue`1.EnqueueAndDispatch(Item item, Boolean canDispatchOnThisThread)
System.ServiceModel.Channels.InputQueue`1.EnqueueAndDispatch(T item, ItemDequeuedCallback dequeuedCallback, Boolean canDispatchOnThisThread)
System.ServiceModel.Channels.InputQueueChannel`1.EnqueueAndDispatch(TDisposable item, ItemDequeuedCallback dequeuedCallback, Boolean canDispatchOnThisThread)
System.ServiceModel.Channels.SingletonChannelAcceptor`3.Enqueue(QueueItemType item, ItemDequeuedCallback dequeuedCallback, Boolean canDispatchOnThisThread)
System.ServiceModel.Channels.SingletonChannelAcceptor`3.Enqueue(QueueItemType item, ItemDequeuedCallback dequeuedCallback)
System.ServiceModel.Channels.HttpChannelListener.HttpContextReceived(HttpRequestContext context, ItemDequeuedCallback callback)
System.ServiceModel.Activation.HostedHttpTransportManager.HttpContextReceived(HostedHttpRequestAsyncResult result)
System.ServiceModel.Activation.HostedHttpRequestAsyncResult.BeginRequest()
System.ServiceModel.Activation.HostedHttpRequestAsyncResult.OnBeginRequest(Object state)
System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.WorkItem.Invoke2()
System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.WorkItem.Invoke()
System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.ProcessCallbacks()
System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.CompletionCallback(Object state)
System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.ScheduledOverlapped.IOCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* nativeOverlapped)
System.ServiceModel.Diagnostics.Utility.IOCompletionThunk.UnhandledExceptionFrame(UInt32 error, UInt32 bytesRead, NativeOverlapped* nativeOverlapped)
System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOVERLAP)


[TraceRecord] Severity Error
TraceIdentifier http://msdn.microsoft.com/en-US/library/System.ServiceModel.Diagnostics.ThrowingException.aspx
Description Throwing an exception.
AppDomain /LM/W3SVC/1373337114/Root-4-129664654928269938

Answer 1

虽然增加线路两端的超时（BTS和WCF服务）可能有助于避免在某些情况下出现错误，但您可能只是在未来的路上踢掉了罐头，您可能需要找到根本原因（这个特定的Web服务调用NORMALLY需要20多秒才能完成吗？）。

在高负载或低容量条件下，您的WCF Web服务可能无法跟上BizTalk能够发送给它的消息速率。

根据您的WCF服务的作用，您可能会考虑优化：

<强>数据库

等待锁定时的SQL阻塞
在管理任务（如重新索引作业，备份等）

IIS / ASP.NET

查看请求are being queued
查看WCF服务端的任何限制（例如MaxConcurrentCalls）

如果WCF服务端没有进一步优化（或扩展/扩展）的机会，您可能需要考虑限制并发业务流程的数量（使用Singleton Orch的变体）或限制数量WCF发送端口适配器上的线程（遗憾的是，这会影响所有消息，因此您可能需要拆分单独的SendHost

在简单地“最大化”所有WCF旋钮时要小心 - 像maxReceivedMessageSize（或maxBufferSize）=“2147483647”这样的设置通常会导致OutOfMemoryExceptions和/或增加威胁表面区域。

Answer 2

您需要change the timeout of the WCF service。

我不确定该解决方案是否正确，但它肯定在web.config文件中。

Answer 3

使用SOAP适配器时遇到类似的问题（我还在使用biztalk 2006）您应该尝试以下方法： YourMessage（SOAP.ClientConnectionTimeout）= 900000;

900000是默认值 ，因此请根据需要增加它，时间以毫秒为单位。

如果此属性不适用于WCF Web服务，我假设该属性存在等效的WCF。

从Biztalk调用wcf服务时出现System.TimeoutException

3 个答案: