WCF 命名管道未知错误
WCF named pipes unknown error
我有两个不同的进程（在同一个会话中，都没有提升），它们在自托管服务（托管在服务器进程中）上使用命名管道进行通信。
在极少数情况下（2-3% 的用户），客户端将无法连接到服务器。
它只在 UAC 下发生并且没有提升。非常清楚，在大多数情况下，该应用程序对于使用 UAC 和未提升会话的用户来说工作得很好。
我发现 运行 作为管理员的一切都可以解决这个问题，但我不想走这条路。此外，将通信更改为 netTcp 也可以解决它，但它会提示我的用户 Windows 防火墙对话框，这对我来说是不可接受的。
我不知道为什么会发生这种情况或如何解决它。我看到很多关于创建管道所需权限的帖子，但正如我所见，我不需要全局管道，只需要本地管道，它不应该需要 UAC off/elevation/specific 对象。
服务器不会显示任何错误并正常运行，但客户端会显示：
System.ServiceModel.EndpointNotFoundException: There was no endpoint listening at net.pipe://localhost/MyAppServices that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details.
Server stack trace:
at System.ServiceModel.Channels.ConnectionUpgradeHelper.DecodeFramingFault(ClientFramingDecoder decoder, IConnection connection, Uri via, String contentType, TimeoutHelper& timeoutHelper)
at System.ServiceModel.Channels.ClientFramingDuplexSessionChannel.SendPreamble(IConnection connection, ArraySegment`1 preamble, TimeoutHelper& timeoutHelper)
at System.ServiceModel.Channels.ClientFramingDuplexSessionChannel.DuplexConnectionPoolHelper.AcceptPooledConnection(IConnection connection, TimeoutHelper& timeoutHelper)
at System.ServiceModel.Channels.ConnectionPoolHelper.EstablishConnection(TimeSpan timeout)
at System.ServiceModel.Channels.ClientFramingDuplexSessionChannel.OnOpen(TimeSpan timeout)
at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.OnOpen(TimeSpan timeout)
at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.CallOpenOnce.System.ServiceModel.Channels.ServiceChannel.ICallOnce.Call(ServiceChannel channel, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.CallOnceManager.CallOnce(TimeSpan timeout, CallOnceManager cascade)
at System.ServiceModel.Channels.ServiceChannel.EnsureOpened(TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at MyApp.BL.Interfaces.Service.IWCFClientServiceAPI.Initialize()
at MyApp.Main.attemptConnection(WCFStoreAPIClient& i_WCFClientServiceAPI, IWCFClientCallbackAPI& i_WCFClientCallbackAPI)
服务器配置：
<?xml version="1.0"?>
<configuration>
<configSections>
<sectionGroup name="userSettings" type="System.Configuration.UserSettingsGroup, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
<section name="MyApp.Client.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" allowExeDefinition="MachineToLocalUser" requirePermission="false"/>
</sectionGroup>
</configSections>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<probing privatePath="Locales"/>
</assemblyBinding>
</runtime>
<system.serviceModel>
<bindings>
<netNamedPipeBinding>
<binding name="NPBinding_IWCFClientServiceAPI" transactionProtocol="OleTransactions" receiveTimeout="infinite" maxConnections="200" maxBufferSize="3145728" maxBufferPoolSize="3145728" maxReceivedMessageSize="3145728"/>
</netNamedPipeBinding>
</bindings>
<services>
<service
name="MyApp.Client.Core.Managers.WCFClientService"
behaviorConfiguration="WCFClientServiceBehavior">
<host>
<baseAddresses>
<add baseAddress="net.pipe://localhost/MyAppServices/" />
</baseAddresses>
</host>
<endpoint address="" binding="netNamedPipeBinding" contract="MyApp.BL.Interfaces.Service.IWCFClientServiceAPI" bindingConfiguration="NPBinding_IWCFClientServiceAPI">
</endpoint>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="WCFClientServiceBehavior">
<serviceMetadata httpGetEnabled="False"/>
<serviceDebug includeExceptionDetailInFaults="False" />
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
</configuration>
客户端配置：
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<system.serviceModel>
<bindings>
<netNamedPipeBinding>
<binding name="NPBinding_IWCFClientServiceAPI" transactionProtocol="OleTransactions" receiveTimeout="infinite" maxConnections="200" maxBufferSize="3145728" maxBufferPoolSize="3145728" maxReceivedMessageSize="3145728"/>
</netNamedPipeBinding>
</bindings>
<client>
<endpoint address="net.pipe://localhost/MyAppServices"
binding="netNamedPipeBinding"
bindingConfiguration="NPBinding_IWCFClientServiceAPI"
contract="MyApp.BL.Interfaces.Service.IWCFClientServiceAPI"
name="NPBinding_IWCFClientServiceAPI">
<headers>
<ClientIdentification>MyAppStore</ClientIdentification>
</headers>
</endpoint>
</client>
</system.serviceModel>
</configuration>
我在使用命名管道进行进程间通信时遇到了类似的问题。当服务器应用程序 运行 使用 "run as administrator" 时，客户端应用程序只能连接到服务器应用程序，否则我会从客户端应用程序获得 EndpointNotFoundException。
这个post described the core of the problem。如果已经使用提升权限创建了一个端点为 "net.pipe://localhost/" 的命名管道，客户端将无法连接到非提升端点，如 "net.pipe://localhost/SomethingElse".
此 post helped me find the named pipes that were open on my system. Download the Sysinternals Suite，然后在提升的命令提示符下使用 Handle.exe 搜索打开的命名管道。
handle net.pipe
管道名称使用Base64编码。
net.pipe:E<Base64EncodedValue>
net.pipe:EbmV0LnBpcGU6Ly8rL1RSQURFU0VSVklDRS9TRVJWSUNFMS8=
我用过这个link to decode the Base64 value。
bmV0LnBpcGU6Ly8rL1RSQURFU0VSVklDRS9TRVJWSUNFMS8=
net.pipe://+/TRADESERVICE/SERVICE1/
导致问题的命名管道是
net.pipe:EbmV0LnBpcGU6Ly8rLw==
其中解码为
net.pipe://+/
注意：+ 或 * 可能是本地主机的通配符
终止有问题的进程，或让它指定一个更具体的端点（如 net.pipe://localhost/SomethingElse）解决了问题。
我有两个不同的进程（在同一个会话中，都没有提升），它们在自托管服务（托管在服务器进程中）上使用命名管道进行通信。 在极少数情况下（2-3% 的用户），客户端将无法连接到服务器。
它只在 UAC 下发生并且没有提升。非常清楚，在大多数情况下，该应用程序对于使用 UAC 和未提升会话的用户来说工作得很好。
我发现 运行 作为管理员的一切都可以解决这个问题，但我不想走这条路。此外，将通信更改为 netTcp 也可以解决它，但它会提示我的用户 Windows 防火墙对话框，这对我来说是不可接受的。
我不知道为什么会发生这种情况或如何解决它。我看到很多关于创建管道所需权限的帖子，但正如我所见，我不需要全局管道，只需要本地管道，它不应该需要 UAC off/elevation/specific 对象。
服务器不会显示任何错误并正常运行，但客户端会显示：
System.ServiceModel.EndpointNotFoundException: There was no endpoint listening at net.pipe://localhost/MyAppServices that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details.
Server stack trace:
at System.ServiceModel.Channels.ConnectionUpgradeHelper.DecodeFramingFault(ClientFramingDecoder decoder, IConnection connection, Uri via, String contentType, TimeoutHelper& timeoutHelper)
at System.ServiceModel.Channels.ClientFramingDuplexSessionChannel.SendPreamble(IConnection connection, ArraySegment`1 preamble, TimeoutHelper& timeoutHelper)
at System.ServiceModel.Channels.ClientFramingDuplexSessionChannel.DuplexConnectionPoolHelper.AcceptPooledConnection(IConnection connection, TimeoutHelper& timeoutHelper)
at System.ServiceModel.Channels.ConnectionPoolHelper.EstablishConnection(TimeSpan timeout)
at System.ServiceModel.Channels.ClientFramingDuplexSessionChannel.OnOpen(TimeSpan timeout)
at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.OnOpen(TimeSpan timeout)
at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.CallOpenOnce.System.ServiceModel.Channels.ServiceChannel.ICallOnce.Call(ServiceChannel channel, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.CallOnceManager.CallOnce(TimeSpan timeout, CallOnceManager cascade)
at System.ServiceModel.Channels.ServiceChannel.EnsureOpened(TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at MyApp.BL.Interfaces.Service.IWCFClientServiceAPI.Initialize()
at MyApp.Main.attemptConnection(WCFStoreAPIClient& i_WCFClientServiceAPI, IWCFClientCallbackAPI& i_WCFClientCallbackAPI)
服务器配置：
<?xml version="1.0"?>
<configuration>
<configSections>
<sectionGroup name="userSettings" type="System.Configuration.UserSettingsGroup, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
<section name="MyApp.Client.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" allowExeDefinition="MachineToLocalUser" requirePermission="false"/>
</sectionGroup>
</configSections>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<probing privatePath="Locales"/>
</assemblyBinding>
</runtime>
<system.serviceModel>
<bindings>
<netNamedPipeBinding>
<binding name="NPBinding_IWCFClientServiceAPI" transactionProtocol="OleTransactions" receiveTimeout="infinite" maxConnections="200" maxBufferSize="3145728" maxBufferPoolSize="3145728" maxReceivedMessageSize="3145728"/>
</netNamedPipeBinding>
</bindings>
<services>
<service
name="MyApp.Client.Core.Managers.WCFClientService"
behaviorConfiguration="WCFClientServiceBehavior">
<host>
<baseAddresses>
<add baseAddress="net.pipe://localhost/MyAppServices/" />
</baseAddresses>
</host>
<endpoint address="" binding="netNamedPipeBinding" contract="MyApp.BL.Interfaces.Service.IWCFClientServiceAPI" bindingConfiguration="NPBinding_IWCFClientServiceAPI">
</endpoint>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="WCFClientServiceBehavior">
<serviceMetadata httpGetEnabled="False"/>
<serviceDebug includeExceptionDetailInFaults="False" />
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
</configuration>
客户端配置：
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<system.serviceModel>
<bindings>
<netNamedPipeBinding>
<binding name="NPBinding_IWCFClientServiceAPI" transactionProtocol="OleTransactions" receiveTimeout="infinite" maxConnections="200" maxBufferSize="3145728" maxBufferPoolSize="3145728" maxReceivedMessageSize="3145728"/>
</netNamedPipeBinding>
</bindings>
<client>
<endpoint address="net.pipe://localhost/MyAppServices"
binding="netNamedPipeBinding"
bindingConfiguration="NPBinding_IWCFClientServiceAPI"
contract="MyApp.BL.Interfaces.Service.IWCFClientServiceAPI"
name="NPBinding_IWCFClientServiceAPI">
<headers>
<ClientIdentification>MyAppStore</ClientIdentification>
</headers>
</endpoint>
</client>
</system.serviceModel>
</configuration>
我在使用命名管道进行进程间通信时遇到了类似的问题。当服务器应用程序 运行 使用 "run as administrator" 时，客户端应用程序只能连接到服务器应用程序，否则我会从客户端应用程序获得 EndpointNotFoundException。
这个post described the core of the problem。如果已经使用提升权限创建了一个端点为 "net.pipe://localhost/" 的命名管道，客户端将无法连接到非提升端点，如 "net.pipe://localhost/SomethingElse".
此 post helped me find the named pipes that were open on my system. Download the Sysinternals Suite，然后在提升的命令提示符下使用 Handle.exe 搜索打开的命名管道。
handle net.pipe
管道名称使用Base64编码。
net.pipe:E<Base64EncodedValue>
net.pipe:EbmV0LnBpcGU6Ly8rL1RSQURFU0VSVklDRS9TRVJWSUNFMS8=
我用过这个link to decode the Base64 value。
bmV0LnBpcGU6Ly8rL1RSQURFU0VSVklDRS9TRVJWSUNFMS8=
net.pipe://+/TRADESERVICE/SERVICE1/
导致问题的命名管道是
net.pipe:EbmV0LnBpcGU6Ly8rLw==
其中解码为
net.pipe://+/
注意：+ 或 * 可能是本地主机的通配符
终止有问题的进程，或让它指定一个更具体的端点（如 net.pipe://localhost/SomethingElse）解决了问题。