Question

我有wcf服务（S1）作为客户端，另一个Wcf服务（S2）作为服务器。 S1在net.tcp上消耗S2。 S2有一个操作，它返回一个复杂的对象，其中大部分内容都是字符串。此对象的平均大小介于7-8 MB之间。

最近我不得不在实际的对象图中添加更多的字符串内容。这导致S2返回以下错误

套接字连接已中止。这可能是由错误引起的处理您的消息或超过接收超时远程主机或底层网络资源问题。本地套接字超时是＆00; 00：05：00＆＃39; System.Net.Sockets.SocketException （0x80004005）：远程强制关闭现有连接主机在System.Net.Sockets.Socket.Receive（Byte []缓冲区，Int32 offset，Int32 size，SocketFlags socketFlags）at System.ServiceModel.Channels.SocketConnection.ReadCore（Byte []缓冲区， Int32偏移量，Int32大小，TimeSpan超时，布尔结束）

但是，当我从对象图中删除一些字符串内容时，一切都按预期工作。

做了一些功课后，我得出了一个结论，它与返回物体的大小有关。这使我修改了我的客户端和服务配置/配额。

但是，即使修改了客户端和服务，特别是与大小相关的属性，我也没有运气。

有人可以指导我吗？如果需要，请向我询问更多信息。

提前致谢。

客户（S1）

<netTcpBinding>
        <binding name="NetTcp" closeTimeout="00:05:00"
          openTimeout="00:05:00" receiveTimeout="00:10:00" sendTimeout="00:05:00"
          transactionFlow="false" transferMode="Buffered" transactionProtocol="OleTransactions"
          hostNameComparisonMode="StrongWildcard" listenBacklog="10" maxBufferPoolSize="2147483647"
          maxBufferSize="2147483647" maxConnections="10" maxReceivedMessageSize="2147483647">
          <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647"
            maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="16384" />
          <reliableSession ordered="true" inactivityTimeout="00:10:00"
            enabled="false" />
          <security mode="None">
            <transport clientCredentialType="Windows" protectionLevel="EncryptAndSign" />
            <message clientCredentialType="Windows" />
          </security>
        </binding>
      </netTcpBinding>
    <client>
          <endpoint address="net.tcp://xxxxxxxx/xxxxxxService"
            binding="netTcpBinding" bindingConfiguration="NetTcp" behaviorConfiguration="RBehavior"  
            contract="IService" name="NetTcp" />
        </client>
        <services/>

        <behaviors>
          <serviceBehaviors>
            <behavior name="NSBehavior">
              <etwTracking profileName="EndToEndMonitoringProfile"/>
              <serviceMetadata httpGetEnabled="false"/>
              <serviceDebug includeExceptionDetailInFaults="true"/>
            </behavior> 

          </serviceBehaviors>
        <endpointBehaviors>                                   
                <behavior name="RBehavior">
     **<dataContractSerializer maxItemsInObjectGraph="2147483647" />**
                </behavior>
            </endpointBehaviors>
        </behaviors>

        <serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
      </system.serviceModel>

     <system.webServer>
        <modules runAllManagedModulesForAllRequests="true"/>
      </system.webServer>

服务器（S2）

<system.serviceModel>
    <bindings>
      <netTcpBinding>
        <binding name="netTcp" closeTimeout="00:03:00"
          openTimeout="00:03:00" receiveTimeout="00:10:00" sendTimeout="00:03:00"
          transactionFlow="false" transferMode="Buffered" transactionProtocol="OleTransactions"
          hostNameComparisonMode="StrongWildcard" listenBacklog="10" maxBufferPoolSize="20000000"
          maxBufferSize="20000000" maxConnections="10" maxReceivedMessageSize="20000000">
          <readerQuotas maxDepth="32" maxStringContentLength="20000000"
            maxArrayLength="20000000" maxBytesPerRead="4096" maxNameTableCharCount="16384" />
          <reliableSession ordered="true" inactivityTimeout="00:10:00"
            enabled="false" />
          <security mode="None">
            <transport clientCredentialType="Windows" protectionLevel="EncryptAndSign" />
            <message clientCredentialType="Windows" />
          </security>
        </binding>
      </netTcpBinding>
    </bindings>

    <services>
      <service name="Engine.Rules"
               behaviorConfiguration="REServiceBehavior">
        <host>
          <baseAddresses>
            <add baseAddress="net.tcp://xxxxx:8005/Service"/>
          </baseAddresses>
        </host>
        <endpoint address=""
                  binding="netTcpBinding" bindingConfiguration="netTcp"
                  contract="Ixxxx" />
        <endpoint address="mex"
                  binding="mexTcpBinding"
                  contract="IMetadataExchange" />
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior name="REServiceBehavior">
          <serviceMetadata httpGetEnabled="false"/>
      **<dataContractSerializer maxItemsInObjectGraph="2147483647"/>**
          <serviceDebug includeExceptionDetailInFaults="true"/>  
          <serviceThrottling maxConcurrentSessions="1000"/>
        </behavior>
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel>

更新：根据@ ErikFunkenbusch的明智支持，我附上了服务跟踪信息。 Exception

<ExceptionString>System.ServiceModel.CommunicationException: The socket connection was aborted. This could be caused by an error processing your message or a receive timeout being exceeded by the remote host, or an underlying network resource issue. Local socket timeout was '00:05:00'. ---&gt; System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host
   at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags)
   at System.ServiceModel.Channels.SocketConnection.ReadCore(Byte[] buffer, Int32 offset, Int32 size, TimeSpan timeout, Boolean closing)
   --- End of inner exception stack trace ---</ExceptionString>
<InnerException>
<ExceptionType>System.Net.Sockets.SocketException, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</ExceptionType>
<Message>An existing connection was forcibly closed by the remote host</Message>
<StackTrace>
at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags)
at System.ServiceModel.Channels.SocketConnection.ReadCore(Byte[] buffer, Int32 offset, Int32 size, TimeSpan timeout, Boolean closing)
</StackTrace>
<ExceptionString>System.Net.Sockets.SocketException (0x80004005): An existing connection was forcibly closed by the remote host
   at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags)
   at System.ServiceModel.Channels.SocketConnection.ReadCore(Byte[] buffer, Int32 offset, Int32 size, TimeSpan timeout, Boolean closing)</ExceptionString>
<NativeErrorCode>2746</NativeErrorCode>
</InnerException>
</Exception>

Answer 1

您是否尝试过增加发送和接收超时值？您通过线路发送了大量数据（7-8MB），5秒可能没有足够的时间来完成该事务。尝试将它们设置为30秒，然后从那里开始工作。

E：

<binding name="netTcp" closeTimeout="00:30:00"
      openTimeout="00:30:00" receiveTimeout="00:30:00" sendTimeout="00:30:00">

这就是我所指的，特别是。

WCF服务 - 消息/对象大小相关

1 个答案: