我有 wcf 服务 (S1) 作为客户端和另一个 Wcf 服务(S2) 作为服务器。S1 通过 net.tcp 消耗 S2。S2 有一个操作,它返回一个复杂的对象,它的大部分内容都是字符串。此对象的平均大小在 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。这会导致 S2 返回以下错误
套接字连接被中止。这可能是由于处理您的消息时出错或远程主机超出接收超时,或者是潜在的网络资源问题造成的。本地套接字超时为“00:05:00”。System.Net.Sockets.SocketException (0x80004005):现有连接被远程主机在 System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags) at System.ServiceModel 强制关闭.Channels.SocketConnection.ReadCore(Byte[] buffer, Int32 offset, Int32 size, TimeSpan timeout, Boolean close)
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。
在做了一些功课之后,我设法得出一个结论,它与返回对象的大小有关。这让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,尤其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。
客户端 (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。
<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'. ---> 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>