C# WCF服务器端崩溃通信对象故障异常：

WCF服务（服务器）在一段时间内运行正常，但由于异常而意外崩溃，此异常记录在AppDomain.CurrentDomain.UnhandledException中：

System.ServiceModel.CommunicationObjectFaultedException: The communication object, System.ServiceModel.Channels.SecurityChannelListener`1+SecurityReplySessionChannel[System.ServiceModel.Channels.IReplySessionChannel], cannot be used for communication because it is in the Faulted state.
   at System.ServiceModel.Channels.CommunicationObject.ThrowIfFaulted()
   at System.ServiceModel.Channels.SecurityChannelListener`1.ReceiveItemAndVerifySecurityAsyncResult`2.StartInnerReceive()
   at System.ServiceModel.Channels.SecurityChannelListener`1.ReceiveItemAndVerifySecurityAsyncResult`2.OnFaultSent()
   at System.ServiceModel.Channels.SecurityChannelListener`1.ReceiveItemAndVerifySecurityAsyncResult`2.OnInnerReceiveDone()
   at System.ServiceModel.Channels.SecurityChannelListener`1.ReceiveItemAndVerifySecurityAsyncResult`2.StartInnerReceive()
   at System.ServiceModel.Channels.SecurityChannelListener`1.ReceiveItemAndVerifySecurityAsyncResult`2.Start()
   at System.ServiceModel.Channels.SecurityChannelListener`1.ReceiveRequestAndVerifySecurityAsyncResult.ReceiveMessage(Object state)
   at System.Runtime.IOThreadScheduler.ScheduledOverlapped.IOCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* nativeOverlapped)
   at System.Runtime.Fx.IOCompletionThunk.UnhandledExceptionFrame(UInt32 error, UInt32 bytesRead, NativeOverlapped* nativeOverlapped)
   at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOVERLAP)

没有xml配置，一切都是在运行时配置的。 服务上下文是单个的，并发是多个的

我们已禁用重播检测。我们的用户在他们的电脑上设置了错误的日期时间，所以我们被迫“禁用”时间偏移。 Tcp绑定用于通信，我们使用回调

使用自定义错误处理程序时，HandleError始终返回false

当前解决方案：服务设置为在崩溃后自动重启，但这远远不够令人满意

---

配置（常量变量替换为值）：

Uri tcpBaseAddress = new Uri(String.Format("net.tcp://localhost:{0}", MyMwcNetworkingConstants.NETWORKING_PORT_MASTER_SERVER_NEW));

// create the net.tcp binding for the service endpoint
NetTcpBinding ntcBinding = new NetTcpBinding();
ntcBinding.Security.Mode = SecurityMode.None;
ntcBinding.MaxBufferPoolSize = 1024*1024;
ntcBinding.MaxBufferSize = 10*1024;
ntcBinding.MaxConnections = 500;
ntcBinding.ListenBacklog = 500;
ntcBinding.MaxReceivedMessageSize = 10*1024;
ntcBinding.ReaderQuotas.MaxArrayLength = 10*1024;
ntcBinding.ReaderQuotas.MaxBytesPerRead = 10*1024;
ntcBinding.SendTimeout = 90s;
ntcBinding.ReceiveTimeout = 90s;
ntcBinding.Security.Mode = SecurityMode.Message;
ntcBinding.Security.Message.ClientCredentialType = MessageCredentialType.UserName;
ntcBinding.Security.Transport.ClientCredentialType = TcpClientCredentialType.None;
ntcBinding.Security.Transport.ProtectionLevel = System.Net.Security.ProtectionLevel.None;

m_host = new System.ServiceModel.ServiceHost(Service, tcpBaseAddress);
m_host.Credentials.UserNameAuthentication.CustomUserNamePasswordValidator = new MyUserValidator();
m_host.Credentials.UserNameAuthentication.UserNamePasswordValidationMode = System.ServiceModel.Security.UserNamePasswordValidationMode.Custom;
m_host.Credentials.ServiceCertificate.Certificate = new System.Security.Cryptography.X509Certificates.X509Certificate2(MyMasterConstants.MASTER_CERTIFICATE, string.Empty);
m_host.Credentials.ClientCertificate.Authentication.CustomCertificateValidator = new MyCertificateValidator(String.Empty);
m_host.Credentials.ClientCertificate.Authentication.CertificateValidationMode = System.ServiceModel.Security.X509CertificateValidationMode.None;

var endpoint = m_host.AddServiceEndpoint(typeof(IMyMasterService), MyCustomBinding.DecorateBinding(ntcBinding, MyMasterConstants.WCF_MAX_CLIENT_COUNT), tcpBaseAddress);
m_host.Open();

public static class MyCustomBinding
{
    public static Binding DecorateBinding(Binding binding, int? maxNegotiationCount)
    {
        CustomBinding customBinding = new CustomBinding(binding);
        SymmetricSecurityBindingElement security = customBinding.Elements.Find<SymmetricSecurityBindingElement>();
        if (security != null)
        {
            security.IncludeTimestamp = false;
            security.LocalClientSettings.DetectReplays = false;
            security.LocalServiceSettings.DetectReplays = false;
            security.LocalClientSettings.MaxClockSkew = TimeSpan.MaxValue;
            security.LocalServiceSettings.MaxClockSkew = TimeSpan.MaxValue;
            security.LocalClientSettings.SessionKeyRenewalInterval = TimeSpan.MaxValue;
            security.LocalServiceSettings.SessionKeyRenewalInterval = TimeSpan.FromMilliseconds(Int32.MaxValue);

            if (maxNegotiationCount.HasValue)
            {
                security.LocalServiceSettings.MaxPendingSessions = maxNegotiationCount.Value;
                security.LocalServiceSettings.MaxStatefulNegotiations = maxNegotiationCount.Value;
            }

            // Get the System.ServiceModel.Security.Tokens.SecureConversationSecurityTokenParameters
            SecureConversationSecurityTokenParameters secureTokenParams = (SecureConversationSecurityTokenParameters)security.ProtectionTokenParameters;

            // From the collection, get the bootstrap element.
            SecurityBindingElement bootstrap = secureTokenParams.BootstrapSecurityBindingElement;

            // Set the MaxClockSkew on the bootstrap element.
            bootstrap.IncludeTimestamp = false;
            bootstrap.LocalClientSettings.DetectReplays = false;
            bootstrap.LocalServiceSettings.DetectReplays = false;
            bootstrap.LocalClientSettings.MaxClockSkew = TimeSpan.MaxValue;
            bootstrap.LocalServiceSettings.MaxClockSkew = TimeSpan.MaxValue;
            bootstrap.LocalClientSettings.SessionKeyRenewalInterval = TimeSpan.MaxValue;
            bootstrap.LocalServiceSettings.SessionKeyRenewalInterval = TimeSpan.FromMilliseconds(Int32.MaxValue);

            if (maxNegotiationCount.HasValue)
            {
                bootstrap.LocalServiceSettings.MaxPendingSessions = maxNegotiationCount.Value;
                bootstrap.LocalServiceSettings.MaxStatefulNegotiations = maxNegotiationCount.Value;
            }

            return customBinding;
        }
        else
        {
            return binding;
        }
    }

    public static Binding DecorateBinding(Binding binding)
    {
        return DecorateBinding(binding, null);
    }
}

这是我的定制绑定：

Uri tcpBaseAddress = new Uri(String.Format("net.tcp://localhost:{0}", MyMwcNetworkingConstants.NETWORKING_PORT_MASTER_SERVER_NEW));

// create the net.tcp binding for the service endpoint
NetTcpBinding ntcBinding = new NetTcpBinding();
ntcBinding.Security.Mode = SecurityMode.None;
ntcBinding.MaxBufferPoolSize = 1024*1024;
ntcBinding.MaxBufferSize = 10*1024;
ntcBinding.MaxConnections = 500;
ntcBinding.ListenBacklog = 500;
ntcBinding.MaxReceivedMessageSize = 10*1024;
ntcBinding.ReaderQuotas.MaxArrayLength = 10*1024;
ntcBinding.ReaderQuotas.MaxBytesPerRead = 10*1024;
ntcBinding.SendTimeout = 90s;
ntcBinding.ReceiveTimeout = 90s;
ntcBinding.Security.Mode = SecurityMode.Message;
ntcBinding.Security.Message.ClientCredentialType = MessageCredentialType.UserName;
ntcBinding.Security.Transport.ClientCredentialType = TcpClientCredentialType.None;
ntcBinding.Security.Transport.ProtectionLevel = System.Net.Security.ProtectionLevel.None;

m_host = new System.ServiceModel.ServiceHost(Service, tcpBaseAddress);
m_host.Credentials.UserNameAuthentication.CustomUserNamePasswordValidator = new MyUserValidator();
m_host.Credentials.UserNameAuthentication.UserNamePasswordValidationMode = System.ServiceModel.Security.UserNamePasswordValidationMode.Custom;
m_host.Credentials.ServiceCertificate.Certificate = new System.Security.Cryptography.X509Certificates.X509Certificate2(MyMasterConstants.MASTER_CERTIFICATE, string.Empty);
m_host.Credentials.ClientCertificate.Authentication.CustomCertificateValidator = new MyCertificateValidator(String.Empty);
m_host.Credentials.ClientCertificate.Authentication.CertificateValidationMode = System.ServiceModel.Security.X509CertificateValidationMode.None;

var endpoint = m_host.AddServiceEndpoint(typeof(IMyMasterService), MyCustomBinding.DecorateBinding(ntcBinding, MyMasterConstants.WCF_MAX_CLIENT_COUNT), tcpBaseAddress);
m_host.Open();

public static class MyCustomBinding
{
    public static Binding DecorateBinding(Binding binding, int? maxNegotiationCount)
    {
        CustomBinding customBinding = new CustomBinding(binding);
        SymmetricSecurityBindingElement security = customBinding.Elements.Find<SymmetricSecurityBindingElement>();
        if (security != null)
        {
            security.IncludeTimestamp = false;
            security.LocalClientSettings.DetectReplays = false;
            security.LocalServiceSettings.DetectReplays = false;
            security.LocalClientSettings.MaxClockSkew = TimeSpan.MaxValue;
            security.LocalServiceSettings.MaxClockSkew = TimeSpan.MaxValue;
            security.LocalClientSettings.SessionKeyRenewalInterval = TimeSpan.MaxValue;
            security.LocalServiceSettings.SessionKeyRenewalInterval = TimeSpan.FromMilliseconds(Int32.MaxValue);

            if (maxNegotiationCount.HasValue)
            {
                security.LocalServiceSettings.MaxPendingSessions = maxNegotiationCount.Value;
                security.LocalServiceSettings.MaxStatefulNegotiations = maxNegotiationCount.Value;
            }

            // Get the System.ServiceModel.Security.Tokens.SecureConversationSecurityTokenParameters
            SecureConversationSecurityTokenParameters secureTokenParams = (SecureConversationSecurityTokenParameters)security.ProtectionTokenParameters;

            // From the collection, get the bootstrap element.
            SecurityBindingElement bootstrap = secureTokenParams.BootstrapSecurityBindingElement;

            // Set the MaxClockSkew on the bootstrap element.
            bootstrap.IncludeTimestamp = false;
            bootstrap.LocalClientSettings.DetectReplays = false;
            bootstrap.LocalServiceSettings.DetectReplays = false;
            bootstrap.LocalClientSettings.MaxClockSkew = TimeSpan.MaxValue;
            bootstrap.LocalServiceSettings.MaxClockSkew = TimeSpan.MaxValue;
            bootstrap.LocalClientSettings.SessionKeyRenewalInterval = TimeSpan.MaxValue;
            bootstrap.LocalServiceSettings.SessionKeyRenewalInterval = TimeSpan.FromMilliseconds(Int32.MaxValue);

            if (maxNegotiationCount.HasValue)
            {
                bootstrap.LocalServiceSettings.MaxPendingSessions = maxNegotiationCount.Value;
                bootstrap.LocalServiceSettings.MaxStatefulNegotiations = maxNegotiationCount.Value;
            }

            return customBinding;
        }
        else
        {
            return binding;
        }
    }

    public static Binding DecorateBinding(Binding binding)
    {
        return DecorateBinding(binding, null);
    }
}

公共静态类MyCustomBinding
{
公共静态绑定装饰绑定（绑定绑定，int？maxNegotiationCount）
{
CustomBinding CustomBinding=新的CustomBinding（绑定）；
SymmetricSecurityBindingElement security=customBinding.Elements.Find（）；
if（安全性！=null）
{
security.IncludeTimestamp=false；
security.LocalClientSettings.DetectReplays=false；
security.LocalServiceSettings.DetectReplays=false；
security.LocalClientSettings.MaxClockSkew=TimeSpan.MaxValue；
security.LocalServiceSettings.MaxClockSkew=TimeSpan.MaxValue；
security.LocalClientSettings.SessionKeyRenewalInterval=TimeSpan.MaxValue；
security.LocalServiceSettings.sessionKeyRenewallinterval=TimeSpan.fromMillicles（Int32.MaxValue）；
if（maxNegotiationCount.HasValue）
{
security.LocalServiceSettings.MaxPendingSessions=maxNegotiationCount.Value；
security.LocalServiceSettings.MaxStatefulNegotiations=maxNegotiationCount.Value；
}
//获取System.ServiceModel.Security.Tokens.SecureConversationSecurityTokenParameters
SecureConversationSecurityTokenParameters SecureTokeParams=（SecureConversationSecurityTokenParameters）security.ProtectionTokenParameters；
//从集合中获取引导元素。
SecurityBindingElement引导=secureTokenParams.BootstrapSecurityBindingElement；
//在引导元素上设置MaxClockSkew。
bootstrap.IncludeTimestamp=false；
bootstrap.LocalClientSettings.DetectReplays=false；
bootstrap.LocalServiceSettings.DetectReplays=false；
bootstrap.LocalClientSettings.MaxClockSkew=TimeSpan.MaxValue；
bootstrap.LocalServiceSettings.MaxClockSkew=TimeSpan.MaxValue；
bootstrap.LocalClientSettings.SessionKeyRenewalInterval=TimeSpan.MaxValue；
bootstrap.LocalServiceSettings.SessionKeyRenewalInterval=TimeSpan.fromMillicles（Int32.MaxValue）；
if（maxNegotiationCount.HasValue）
{
bootstrap.LocalServiceSettings.MaxPendingSessions=maxNegotiationCount.Value；
bootstrap.LocalServiceSettings.MaxStatefulNegotiations=maxNegotiationCount.Value；
}
返回自定义绑定；
}
其他的
{
返回绑定；
}
}
公共静态绑定装饰绑定（绑定绑定）
{
返回decorebinding（binding，null）；
}
}

我的处境与您完全相同（WCF服务在生产中随机崩溃，无法在开发中复制，堆栈跟踪与您的完全相同）。我已找到以下知识库，并将很快尝试：。“此修补程序尚未完全测试”阻止我现在应用它

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如果您尝试了，请告诉我，它解决了您的问题。希望这有帮助。

故障状态可能意味着很多事情（不可能解析配置等）。将绑定更改为basicHttpBinding-更易于调试。配置WCF跟踪以获取更详细的erro消息。就像Peter所说的，故障状态可能意味着很多事情。@PeterLarsen'CPH'：我无法在DEV上复制这个问题，它只能在生产中复制。我也不能在生产中改变装订。我将尝试在DEV上复制，但复制需要大量不同的请求和相当长的时间。它每天在生产中崩溃一次。你需要更多关于错误的信息：-就像Strukov说的！