在WCF服务中传输大量数据
我在WCF中创建了一个web服务,它返回54000多个数据行,每行10个数据。我使用了wsHttpBinding来进行通信。该服务在数据较少(即2000行)的情况下运行良好,但在尝试发送50000多行(约2MB)的大型记录集时,它会崩溃。异常消息如下所示在WCF服务中传输大量数据,wcf,wcf-data-services,wcf-binding,Wcf,Wcf Data Services,Wcf Binding,我在WCF中创建了一个web服务,它返回54000多个数据行,每行10个数据。我使用了wsHttpBinding来进行通信。该服务在数据较少(即2000行)的情况下运行良好,但在尝试发送50000多行(约2MB)的大型记录集时,它会崩溃。异常消息如下所示 <system.web> <httpRuntime maxRequestLength="102400" /> </system.web> <system.serviceModel
<system.web>
<httpRuntime maxRequestLength="102400" />
</system.web>
<system.serviceModel>
<bindings>
<wsHttpBinding>
<binding name="MyWsHttpBinding" />
</wsHttpBinding>
<netTcpBinding>
<binding name="myNetTcpBinding"
closeTimeout="00:01:00"
openTimeout="00:01:00"
receiveTimeout="00:10:00"
sendTimeout="00:01:00"
transactionFlow="false"
transferMode="Buffered"
transactionProtocol="OleTransactions"
hostNameComparisonMode="StrongWildcard"
listenBacklog="10"
maxBufferPoolSize="2147483647"
maxBufferSize="524288"
maxConnections="10"
maxReceivedMessageSize="2147483647">
<readerQuotas maxDepth="32"
maxStringContentLength="8192"
maxArrayLength="16384"
maxBytesPerRead="4096"
maxNameTableCharCount="16384" />
<reliableSession ordered="true"
inactivityTimeout="00:10:00"
enabled="false" />
<security mode="Transport">
<transport clientCredentialType="Windows" protectionLevel="EncryptAndSign" />
</security>
</binding>
</netTcpBinding>
</bindings>
<services>
<service name="AdminService" behaviorConfiguration="myNetTcpBehaviour">
<endpoint address="AdminSrv"
binding="netTcpBinding"
bindingConfiguration="myNetTcpBinding"
contract="IAdminService"
behaviorConfiguration="myNetTcpEndPointBehaviour"/>
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
<host>
<baseAddresses>
<add baseAddress="/Bus/IRfotoWCF" />
</baseAddresses>
</host>
</service>
<behaviors>
<serviceBehaviors>
<behavior name="myNetTcpBehaviour">
<serviceMetadata httpGetEnabled="true"/>
<serviceDebug includeExceptionDetailInFaults="true"/>
<dataContractSerializer maxItemsInObjectGraph="2147483647"/>
</behavior>
</serviceBehaviors>
<endpointBehaviors>
<behavior name="myNetTcpEndPointBehaviour">
<dataContractSerializer maxItemsInObjectGraph="2147483647"/>
</behavior>
</endpointBehaviors>
</behaviors>
<serviceHostingEnvironment multipleSiteBindingsEnabled="true"></serviceHostingEnvironment>
</system.serviceModel>
接收对的HTTP响应时出错http://localhost:9002/MyService.svc
。这可能是由于服务端点绑定未使用HTTP协议造成的。这也可能是由于服务器中止了HTTP请求上下文(可能是由于服务关闭)。有关详细信息,请参阅服务器日志
请不要告诉我在客户端使用分页-我知道这会解决问题。但我需要客户端的全部数据块
我在服务器上的服务配置如下
<system.serviceModel>
<bindings>
<wsHttpBinding>
<binding name="MyWsHttpBinding" />
</wsHttpBinding>
</bindings>
<services>
<service name="AdminService">
<endpoint address="AdminSrv"
binding="wsHttpBinding"
contract="IAdminService"/>
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
<host>
<baseAddresses>
<add baseAddress="/Bus/IRfotoWCF" />
</baseAddresses>
</host>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior>
<!-- To avoid disclosing metadata information,
set the value below to false and remove the metadata endpoint above before deployment -->
<serviceMetadata httpGetEnabled="True"/>
<!-- To receive exception details in faults for debugging purposes,
set the value below to true. Set to false before deployment
to avoid disclosing exception information -->
<serviceDebug includeExceptionDetailInFaults="True" />
</behavior>
</serviceBehaviors>
</behaviors>
<serviceHostingEnvironment multipleSiteBindingsEnabled="true"></serviceHostingEnvironment>
</system.serviceModel>
我的客户端配置如下
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="BasicHttpBinding_IAdminService" closeTimeout="00:01:00"
openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"
useDefaultWebProxy="true">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<security mode="None">
<transport clientCredentialType="None" proxyCredentialType="None" realm="" />
<message clientCredentialType="UserName" algorithmSuite="Default" />
</security>
</binding>
</basicHttpBinding>
</bindings>
<client>
<endpoint address="http://localhost/TestService/AdminService.svc"
binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IAdminService"
contract="IAdminService" name="BasicHttpBinding_IAdminService" />
</client>
</system.serviceModel>
有人能帮我在客户端和服务器端进行EXACT配置吗。即使我需要将绑定从wsHttpBinding更改为netTcpBinding,我也可以这样做。提前谢谢 如果查看绑定详细信息,服务器端和客户端的绑定详细信息并不完全匹配。
maxBufferSize、maxBufferPoolSize、maxReceivedMessageSize的属性也将在服务器端定义。然后你需要根据你所看到的大小来输入值。经过大量的调查,最终我得到了解决方案。事实上,有很多事情需要改变
需要在服务器端进行以下更改
首先我必须在httpRuntime元素中将maxRequestLength设置为一个更大的值,以便在更长的时间内运行请求
<system.web>
<httpRuntime maxRequestLength="102400" />
</system.web>
Third在serviceBehaviors
和endpointBehaviors
中添加maxItemsInObjectGraph
,如下面所示(不要忘记在服务
和端点
节点中提及行为名称)
现在我可以在5.30分钟内传输30000行,其中查询执行了10秒,因此传输时间为5.20分钟-仍然很多
请随时发表评论和提出任何改进建议。对于大量数据,不要使用for loop over WCF,而是使用用户定义的表类型(如果您使用的是SQL)。它将把时间从6分钟缩短到15-20秒 我在服务器端和客户端都尝试了这些值为2147483647的maxBufferSize、maxBufferPoolSize和maxReceivedMessageSize。仍然是相同的异常。我无法在您的帖子中看到配置文件中的设置。您确定绑定配置设置正确吗?是的,我在本地服务器端和客户端都配置了绑定配置中的配置。但是现在我已经解决了这个问题,看看答案。无论如何,谢谢你,请随时对答案发表评论。很好,它帮助你达成了解决方案。我不明白。当一个服务在5.20分钟内等待另一个服务时,这真的是一个很好的解决方案吗。我认为这是架构的大问题,但我找不到解决方案。我继续测试传输大数据的速度。使用“Chunks”方法,我可以发送300000(!)行,并在4.34分钟内将其保存到数据库中,而不会更改我的服务配置。我只是将数据分成50行的数据块。您应该使用Datacontract序列化程序,而不是XML。到目前为止,这是reference.cs中的手动替换作业。
<behaviors>
<serviceBehaviors>
<behavior name="myNetTcpBehaviour">
<serviceMetadata httpGetEnabled="true"/>
<serviceDebug includeExceptionDetailInFaults="true"/>
<dataContractSerializer maxItemsInObjectGraph="2147483647"/>
</behavior>
</serviceBehaviors>
<endpointBehaviors>
<behavior name="myNetTcpEndPointBehaviour">
<dataContractSerializer maxItemsInObjectGraph="2147483647"/>
</behavior>
</endpointBehaviors>
</behaviors>
<system.web>
<httpRuntime maxRequestLength="102400" />
</system.web>
<system.serviceModel>
<bindings>
<wsHttpBinding>
<binding name="MyWsHttpBinding" />
</wsHttpBinding>
<netTcpBinding>
<binding name="myNetTcpBinding"
closeTimeout="00:01:00"
openTimeout="00:01:00"
receiveTimeout="00:10:00"
sendTimeout="00:01:00"
transactionFlow="false"
transferMode="Buffered"
transactionProtocol="OleTransactions"
hostNameComparisonMode="StrongWildcard"
listenBacklog="10"
maxBufferPoolSize="2147483647"
maxBufferSize="524288"
maxConnections="10"
maxReceivedMessageSize="2147483647">
<readerQuotas maxDepth="32"
maxStringContentLength="8192"
maxArrayLength="16384"
maxBytesPerRead="4096"
maxNameTableCharCount="16384" />
<reliableSession ordered="true"
inactivityTimeout="00:10:00"
enabled="false" />
<security mode="Transport">
<transport clientCredentialType="Windows" protectionLevel="EncryptAndSign" />
</security>
</binding>
</netTcpBinding>
</bindings>
<services>
<service name="AdminService" behaviorConfiguration="myNetTcpBehaviour">
<endpoint address="AdminSrv"
binding="netTcpBinding"
bindingConfiguration="myNetTcpBinding"
contract="IAdminService"
behaviorConfiguration="myNetTcpEndPointBehaviour"/>
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
<host>
<baseAddresses>
<add baseAddress="/Bus/IRfotoWCF" />
</baseAddresses>
</host>
</service>
<behaviors>
<serviceBehaviors>
<behavior name="myNetTcpBehaviour">
<serviceMetadata httpGetEnabled="true"/>
<serviceDebug includeExceptionDetailInFaults="true"/>
<dataContractSerializer maxItemsInObjectGraph="2147483647"/>
</behavior>
</serviceBehaviors>
<endpointBehaviors>
<behavior name="myNetTcpEndPointBehaviour">
<dataContractSerializer maxItemsInObjectGraph="2147483647"/>
</behavior>
</endpointBehaviors>
</behaviors>
<serviceHostingEnvironment multipleSiteBindingsEnabled="true"></serviceHostingEnvironment>
</system.serviceModel>
<endpointBehaviors>
<behavior name="myEndPointBehavior">
<dataContractSerializer maxItemsInObjectGraph="2147483647" />
</behavior>
</endpointBehaviors>