Question

我正在使用WCF（使用回调契约）和netTcpBinding创建聊天应用程序。我将该服务作为Windows服务托管并从其他计算机访问它通过客户端应用程序。

我现在面临的问题是客户端连接在达到故障状态之后 10分钟似乎是某种超时发生。我已经尝试增加收到的超时并在服务和客户端发送超时但是没有用。

我应该更改哪个设置以增加此超时时间以及应用程序，服务或客户端？

以下是我的配置文件

服务

    <system.serviceModel>
    <services>
      <service behaviorConfiguration="PeerTalk.Service.ChatServiceBehavior"
        name="PeerTalk.Service.ChatService">
        <endpoint address="" binding="netTcpBinding" bindingConfiguration=""
          contract="PeerTalk.Service.ServiceContracts.IChat">
          <identity>
            <dns value="localhost" />
          </identity>
        </endpoint>
        <endpoint address="mex" binding="mexTcpBinding" bindingConfiguration=""
          contract="IMetadataExchange" />
        <host>
          <baseAddresses>
            <add baseAddress="http://localhost:7920/ChatService" />
            <add baseAddress="net.tcp://localhost:7921/ChatService" />
          </baseAddresses>
        </host>
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior name="PeerTalk.Service.ChatServiceBehavior">
          <serviceMetadata httpGetEnabled="false" />
          <serviceDebug includeExceptionDetailInFaults="false" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <bindings>
      <netTcpBinding>
        <binding name="tcpBinding"
                 maxBufferSize="67108864"
           maxReceivedMessageSize="67108864"
           maxBufferPoolSize="67108864"
           transferMode="Buffered"
           closeTimeout="00:01:00"
           openTimeout="00:01:00"
           receiveTimeout="00:00:10"
           sendTimeout="00:00:10"
           maxConnections="100">
          <readerQuotas maxDepth="64"
                        maxStringContentLength="67108864"
                        maxArrayLength="67108864"
                        maxBytesPerRead="67108864"
                        maxNameTableCharCount="16384"/>
          <security mode="Transport">
            <transport clientCredentialType="Windows" protectionLevel="EncryptAndSign" />
            <message clientCredentialType="Windows"/>
          </security>
          <reliableSession enabled="false" inactivityTimeout="00:01:00"/>

        </binding>
      </netTcpBinding>
    </bindings>
  </system.serviceModel>

客户端

<system.serviceModel>
    <bindings>
      <netTcpBinding>
        <binding name="NetTcpBinding_IChat" closeTimeout="00:01:00" openTimeout="00:01:00"
          receiveTimeout="00:10:00" sendTimeout="00:00:10" transactionFlow="false"
          transferMode="Buffered" transactionProtocol="OleTransactions"
          hostNameComparisonMode="StrongWildcard" listenBacklog="10" maxBufferPoolSize="67108864"
          maxBufferSize="67108864" maxConnections="10" maxReceivedMessageSize="67108864">
          <readerQuotas maxDepth="32" maxStringContentLength="67108864"
            maxArrayLength="67108864" maxBytesPerRead="67108864" maxNameTableCharCount="16384" />
          <reliableSession ordered="true" inactivityTimeout="00:01:00"
            enabled="false" />
          <security mode="Transport">
            <transport clientCredentialType="Windows" protectionLevel="EncryptAndSign" />
            <message clientCredentialType="Windows" />
          </security>
        </binding>
      </netTcpBinding>
    </bindings>
    <client>     
          <endpoint address="net.tcp://10.10.10.45:7921/ChatService" binding="netTcpBinding"
               bindingConfiguration="NetTcpBinding_IChat" contract="PeerTalkService.IChat"
               name="NetTcpBinding_IChat">
          </endpoint>
    </client>
  </system.serviceModel>

感谢。

Answer 1

此情况下的超时由绑定中的receiveTimeout和用于双工消息传递的可靠会话中的inactivityTimeout定义。正确的解决方案不是增加超时，而是实现一些ping / keep alive消息。原因是增加超时将使失败的客户端保持连接打开状态。

Answer 2

您可以发布客户呼叫示例（服务呼叫示例）。这里可能会发生的是，您没有正确关闭客户端，而是在服务端达到最大会话数您必须知道使用net.tcp绑定与http不同。

您可以使用System.ServiceModel性能计数器（http://msdn.microsoft.com/en-us/library/ms750527.aspx）并在10分钟后查看发生的情况（未完成的呼叫数，服务实例数）等等。）

http://dkochnev.blogspot.com/2011/06/wcf-framework-40-monitoring-service.html

10分钟后使用netTcp绑定超时的WCF回调服务

2 个答案: