调用时出现这个错误
请求 channel 在 00:00:59.9970702 之后等待回复时超时。增加传递给 Request 调用的超时值或增加 Binding 上的 SendTimeout 值。分配给此操作的时间可能是较长超时的一部分。
我在SO中看到过这个 WCF stops responding after about 10 or so calls (throttling)
但我不知道我必须在哪里实现这个..无论是在我的 webconfig 文件还是 webservice 配置文件..有什么建议吗？
编辑(1):
这是我的网络配置文件
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="BinaryCertTokenOverSSL" 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="TransportWithMessageCredential">
<transport clientCredentialType="None" proxyCredentialType="None"
realm="" />
<message clientCredentialType="Certificate" algorithmSuite="Default" />
</security>
</binding>
<binding name="UserNameTokenOverSSLBinding" 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="TransportWithMessageCredential">
<transport clientCredentialType="None" proxyCredentialType="None"
realm="" />
<message clientCredentialType="UserName" algorithmSuite="Default" />
</security>
</binding>
</basicHttpBinding>
<wsHttpBinding>
<binding name="WSBinaryCertReliable" closeTimeout="00:01:00"
openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard"
maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true"
allowCookies="false">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<reliableSession ordered="true" inactivityTimeout="00:10:00"
enabled="true" />
<security mode="Message">
<transport clientCredentialType="Windows" proxyCredentialType="None"
realm="" />
<message clientCredentialType="Certificate" negotiateServiceCredential="false"
algorithmSuite="Default" establishSecurityContext="true" />
</security>
</binding>
<binding name="WSUserNameReliable" closeTimeout="00:01:00" openTimeout="00:01:00"
receiveTimeout="00:10:00" sendTimeout="00:01:00" bypassProxyOnLocal="false"
transactionFlow="false" hostNameComparisonMode="StrongWildcard"
maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true"
allowCookies="false">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<reliableSession ordered="true" inactivityTimeout="00:10:00"
enabled="true" />
<security mode="Message">
<transport clientCredentialType="Windows" proxyCredentialType="None"
realm="" />
<message clientCredentialType="UserName" negotiateServiceCredential="false"
algorithmSuite="Default" establishSecurityContext="true" />
</security>
</binding>
<binding name="WSBinaryCert" closeTimeout="00:01:00" openTimeout="00:01:00"
receiveTimeout="00:10:00" sendTimeout="00:01:00" bypassProxyOnLocal="false"
transactionFlow="false" hostNameComparisonMode="StrongWildcard"
maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true"
allowCookies="false">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<reliableSession ordered="true" inactivityTimeout="00:10:00"
enabled="false" />
<security mode="Message">
<transport clientCredentialType="Windows" proxyCredentialType="None"
realm="" />
<message clientCredentialType="Certificate" negotiateServiceCredential="false"
algorithmSuite="Default" establishSecurityContext="false" />
</security>
</binding>
<binding name="WSUserName" closeTimeout="00:01:00" openTimeout="00:01:00"
receiveTimeout="00:10:00" sendTimeout="00:01:00" bypassProxyOnLocal="false"
transactionFlow="false" hostNameComparisonMode="StrongWildcard"
maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true"
allowCookies="false">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<reliableSession ordered="true" inactivityTimeout="00:10:00"
enabled="false" />
<security mode="Message">
<transport clientCredentialType="Windows" proxyCredentialType="None"
realm="" />
<message clientCredentialType="UserName" negotiateServiceCredential="false"
algorithmSuite="Default" establishSecurityContext="false" />
</security>
</binding>
</wsHttpBinding>
</bindings>
<client>
<endpoint address="http://XXXvm134.rsimail.rsil.XXX.com/VWWebservice/VWSecurityServices.svc/WsBinaryCertReliable"
binding="wsHttpBinding" bindingConfiguration="WSBinaryCertReliable"
contract="IVWSecurityServices" name="WSBinaryCertReliable">
<identity>
<certificate encodedValue="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" />
</identity>
</endpoint>
<endpoint address="https://XXXvm134.rsimail.rsil.XXX.com/VWWebservice/VWSecurityServices.svc/BinaryCertTokenOverSSL"
binding="basicHttpBinding" bindingConfiguration="BinaryCertTokenOverSSL"
contract="IVWSecurityServices" name="BinaryCertTokenOverSSL" />
<endpoint address="http://XXXvm134.rsimail.rsil.XXX.com/VWWebservice/VWSecurityServices.svc/WSUserNameReliable"
binding="wsHttpBinding" bindingConfiguration="WSUserNameReliable"
contract="IVWSecurityServices" name="WSUserNameReliable">
<identity>
<certificate encodedValue="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" />
</identity>
</endpoint>
<endpoint address="http://XXXvm134.rsimail.rsil.XXX.com/VWWebservice/VWSecurityServices.svc/WSBinaryCert"
binding="wsHttpBinding" bindingConfiguration="WSBinaryCert"
contract="IVWSecurityServices" name="WSBinaryCert">
<identity>
<certificate encodedValue="AwAAAAEAAAAUAAAAch9c8R+87NcfIPn0imYdQaHEFp8gAAAAAQAAAFcCAAAwggJTMIIBvKADAgECAhA3Zx4Bjx6gs0Cu4C0/9OpuMA0GCSqGSIb3DQEBBAUAMCwxKjAoBgNVBAMTIXJhbWNvdm0xMzQucnNpbWFpbC5yc2lsLnJhbWNvLmNvbTAeFw05OTEyMzExODMwMDBaFw0xNDEyMzExODMwMDBaMCwxKjAoBgNVBAMTIXJhbWNvdm0xMzQucnNpbWFpbC5yc2lsLnJhbWNvLmNvbTCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEAtcad6zbauhN5mo54MDt4JAuTtU0MIOuhXhsUGIGYkZ4+mhav3oCRiALzQWLfmm6jQZAsW8LXE/p1UZLfenaHRWTcDxZ0Qvuow51NU4r30Fr7U+XQCQNytaVHI/aYk2CreaOoPzlMxrFjw33yShBi9LXsM7FQZL3sAWFro2/A74sCAwEAAaN2MHQwEwYDVR0lBAwwCgYIKwYBBQUHAwEwXQYDVR0BBFYwVIAQI72gtckgLr+CwMqK5vo11qEuMCwxKjAoBgNVBAMTIXJhbWNvdm0xMzQucnNpbWFpbC5yc2lsLnJhbWNvLmNvbYIQN2ceAY8eoLNAruAtP/TqbjANBgkqhkiG9w0BAQQFAAOBgQAYUlt7PX01iokgi8jW96tdBiaJIb7XBt9DgUPqAhunbSrPq/sNaIy+hLBJ7W174Ozh0r/cJp18WoCD8S0IbBvvs3aSaCoBPAa+Rb2OSx21QgEpZ5+flxaXK9HxY0WmmTXRqsgR4bplZ5F1RFX9x6Px+yyQzu+IBPpwcL8JSs+pvA==" />
</identity>
</endpoint>
<endpoint address="http://XXXvm134.rsimail.rsil.XXX.com/VWWebservice/VWSecurityServices.svc/WSUserName"
binding="wsHttpBinding" bindingConfiguration="WSUserName"
contract="IVWSecurityServices" name="WSUserName">
<identity>
<certificate encodedValue="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" />
</identity>
</endpoint>
<endpoint address="https://XXXvm134.rsimail.rsil.XXX.com/VWWebservice/VWSecurityServices.svc/UserNameTokenOverSSL"
binding="basicHttpBinding" bindingConfiguration="UserNameTokenOverSSLBinding"
contract="IVWSecurityServices" name="UserNameTokenOverSSLBinding" />
</client>
</system.serviceModel>
这是我的网络服务配置文件
<system.serviceModel>
<extensions>
<bindingElementExtensions>
<add name="sslOffloadedHttpsTransport" type="XXX.VW.Web.Services.CustomBinding.SSLOffloadedHttpsTransportElement, XXX.VW.RT.WebServices.Core, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null" />
</bindingElementExtensions>
</extensions>
<behaviors>
<serviceBehaviors>
<behavior name="e-ServiceBehavior">
<serviceCredentials>
<clientCertificate>
<authentication certificateValidationMode="None" revocationMode="Online" />
</clientCertificate>
<serviceCertificate findValue="XXXvm134.rsimail.rsil.XXX.com" storeLocation="LocalMachine" storeName="My" x509FindType="FindBySubjectName" />
<userNameAuthentication userNamePasswordValidationMode="Custom" customUserNamePasswordValidatorType="XXX.VW.RT.VWCustomUserValidator,XXX.VW.RT.Library" />
</serviceCredentials>
<serviceDebug includeExceptionDetailInFaults="true" />
<serviceMetadata httpGetEnabled="true" httpsGetEnabled="false" />
<serviceAuthorization principalPermissionMode="None" />
</behavior>
</serviceBehaviors>
</behaviors>
<bindings>
<basicHttpBinding>
<binding name="UserNameTokenOverSSLBinding">
<security mode="TransportWithMessageCredential" />
</binding>
<binding name="BinaryCertTokenOverSSLBinding" closeTimeout="00:10:00" openTimeout="00:10:00" sendTimeout="00:10:00">
<security mode="TransportWithMessageCredential">
<message clientCredentialType="Certificate" />
</security>
</binding>
<binding name="Vw30BasicHttpBinding" closeTimeout="00:10:00" openTimeout="00:10:00" receiveTimeout="00:10:00" sendTimeout="00:10:00" maxBufferSize="65536" maxReceivedMessageSize="65536">
<security>
<transport clientCredentialType="None" />
<message clientCredentialType="UserName" />
</security>
</binding>
</basicHttpBinding>
<customBinding>
<binding name="Vw30netTcpHABinding" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:01:00" sendTimeout="00:01:00">
<binaryMessageEncoding>
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384" />
</binaryMessageEncoding>
<tcpTransport maxBufferPoolSize="524288" maxReceivedMessageSize="99999998" connectionBufferSize="8192" hostNameComparisonMode="StrongWildcard" channelInitializationTimeout="00:01:00" maxBufferSize="99999998" maxPendingConnections="20" maxOutputDelay="00:00:00.2000000" maxPendingAccepts="5" transferMode="Buffered" listenBacklog="20" portSharingEnabled="false" teredoEnabled="false">
<connectionPoolSettings groupName="default" leaseTimeout="00:00:02" idleTimeout="00:02:00" maxOutboundConnectionsPerEndpoint="20" />
</tcpTransport>
</binding>
<binding name="Vw30HttpHABinding">
<textMessageEncoding />
<httpTransport keepAliveEnabled="false">
</httpTransport>
</binding>
<binding name="UserNameTokenOverSSLOffloaderBinding">
<textMessageEncoding messageVersion="Soap11" />
<security authenticationMode="UserNameOverTransport">
<secureConversationBootstrap />
</security>
<sslOffloadedHttpsTransport />
</binding>
<binding name="BinaryCertTokenOverSSLOffloaderBinding">
<textMessageEncoding messageVersion="Soap11" />
<security authenticationMode="UserNameOverTransport">
<secureConversationBootstrap />
</security>
<sslOffloadedHttpsTransport />
</binding>
</customBinding>
<netTcpBinding>
<binding name="Vw30netTcpBinding" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:01:00" sendTimeout="00:01:00" transactionFlow="false" transferMode="Buffered" transactionProtocol="OleTransactions" hostNameComparisonMode="StrongWildcard" listenBacklog="10" maxBufferPoolSize="524288" maxBufferSize="65536" maxConnections="10" maxReceivedMessageSize="65536">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="false" />
<security mode="None">
<transport clientCredentialType="None" protectionLevel="None" />
<message clientCredentialType="None" />
</security>
</binding>
</netTcpBinding>
<wsHttpBinding>
<binding name="WSUserNameBinding" transactionFlow="true">
<security>
<transport clientCredentialType="None" />
<message clientCredentialType="UserName" negotiateServiceCredential="false" establishSecurityContext="false" />
</security>
</binding>
<binding name="WSBinaryCertBinding" transactionFlow="true">
<security>
<transport clientCredentialType="None" />
<message clientCredentialType="Certificate" negotiateServiceCredential="false" establishSecurityContext="false" />
</security>
</binding>
<binding name="WSUserNameReliableBinding" closeTimeout="00:10:00" openTimeout="00:10:00" sendTimeout="00:10:00" transactionFlow="true">
<reliableSession enabled="true" />
<security>
<transport clientCredentialType="None" />
<message clientCredentialType="UserName" negotiateServiceCredential="false" />
</security>
</binding>
<binding name="WsBinaryCertReliableBinding" transactionFlow="true">
<reliableSession enabled="true" />
<security>
<transport clientCredentialType="None" />
<message clientCredentialType="Certificate" negotiateServiceCredential="false" />
</security>
</binding>
</wsHttpBinding>
</bindings>
<services configSource="Web.Services.config" />
<!--Should be uncommented when webservices are consumed through SSL Offloaders, and the application pool should be set to use .NET framework 4.0. -->
<!--<serviceHostingEnvironment multipleSiteBindingsEnabled="true"/> -->
</system.serviceModel>
最佳答案
这通常归结为 session 和节流
在 .NET 4 之前，并发 session 的默认最大数量为 10。这意味着第 11 个并发 session 等待其他 session 之一消失，最终将达到客户端发送超时(默认为 1 分钟)
在 .NET 4 之后，默认值为 100 x 处理器(内核)数量，因此被命中的可能性要小得多
您有 3 个选择:
- 增加 session 限制 http://www.codegain.com/articles/wcf/security/wcf-service-throttling-behavior.aspx
- 更快地关闭现有 session (确保您及时调用代理上的 Close)
- 增加客户端的发送超时
关于c# - 尝试调用 Web 服务时出现 channel 超时错误，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/6456251/