系统上线后WCF服务最近经常死掉的原因分析总结

    public static class WcfExtensions
    {
        public static void Using<T>(this T client, Action<T> work)
            where T : ICommunicationObject
        {
            try
            {
                work(client);
                client.Close();
            }
            catch (CommunicationException e)
            {
                client.Abort();
            }
            catch (TimeoutException e)
            {
                client.Abort();
            }
            catch (Exception e)
            {
                client.Abort();
            }
        }
    }

        public static DocAppend GetDocAppend(string dwid, string actionId)
        {
            DocAppend docAppend = new DocAppend();
            new DocumentServiceV2.DocumentServiceV2Client().Using(channel => docAppend = channel.GetDocAppend(dwid, actionId));
            return docAppend;
        }

            Document document = null;
            DocumentServiceClient client = new DocumentService.DocumentServiceClient();
            try
            {
                document= client.GetDocument(id);
                if (client.State != System.ServiceModel.CommunicationState.Faulted)
                {
                    client.Close();
                }
            }
            catch (Exception ex)
            {
                client.Abort();
            }
            return document;

<binding name="netTcpBindConfig" closeTimeout="00:10:00" 
openTimeout="00:10:00" receiveTimeout="00:10:00" sendTimeout="00:10:00" 
transactionFlow="false" transferMode="Buffered" transactionProtocol="OleTransactions" 
hostNameComparisonMode="StrongWildcard" listenBacklog="10" 
maxBufferPoolSize="2147483647" maxBufferSize="2147483647" maxConnections="10" 
maxReceivedMessageSize="2147483647"> 

<binding name="netTcpBindConfig" closeTimeout="00:30:00" 
openTimeout="00:30:00" receiveTimeout="00:30:00" sendTimeout="00:30:00" 
transactionFlow="false" transferMode="Buffered" transactionProtocol="OleTransactions" 
hostNameComparisonMode="StrongWildcard" listenBacklog="100" 
maxBufferPoolSize="2147483647" maxBufferSize="2147483647" maxConnections="100" 
maxReceivedMessageSize="2147483647"> 

      <serviceBehaviors>
        <behavior name="ThrottledBehavior">
          <serviceMetadata httpGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="true" />
          <dataContractSerializer maxItemsInObjectGraph="2147483647"/>
          <serviceThrottling maxConcurrentCalls="5000" maxConcurrentSessions="5000" maxConcurrentInstances="5000" />
        </behavior>
      </serviceBehaviors>

  <system.net>
    <connectionManagement>
      <add address="*" maxconnection="5000"/>
    </connectionManagement>
  </system.net>

        public DocumentWriteServiceClient(string endpointConfigurationName) : 
                base(endpointConfigurationName) {
        }

      <endpoint address="http://localhost:8700/Design_Time_Addresses/SinoSZJS.WebWCF/DocumentWriteService/"
 binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_ICommonBinding"
 contract="DocumentWriteService.IDocumentWriteService" name="1">
        <identity>
          <dns value="localhost" />
        </identity>
      </endpoint>
      <endpoint address="http://localhost:8700/Design_Time_Addresses/SinoSZJS.WebWCF/DocumentWriteService/"
 binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_ICommonBinding"
 contract="DocumentWriteService.IDocumentWriteService" name="2">
        <identity>
          <dns value="localhost" />
        </identity>
      </endpoint>
      <endpoint address="http://localhost:8700/Design_Time_Addresses/SinoSZJS.WebWCF/DocumentWriteService/"
 binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_ICommonBinding"
 contract="DocumentWriteService.IDocumentWriteService" name="3">
        <identity>
          <dns value="localhost" />
        </identity>
      </endpoint>

DocumentWriteServiceClient client = new DocumentWriteServiceClient();

DocumentWriteServiceClient client = new DocumentWriteServiceClient(new Random().Next(1, 4).ToString());