C # WCF - Client / Server - System.OutOfMemory Exception

Question

Problem.

• C # WCF client / server application using Net TCP bindings (Publisher / Subscriber pattern).
• Client side continues to fail with OutOfMemoryException.
• When I start the task manager along with the client, I can see that the column of memory usage increases until the application crashes.
• The intention is that multiple client instances run on separate machines.

Scenario

• I have a client / server application.
• Publisher / Subscriber Design Template.
• On the server side, there are 6 dictionaries that make up the cache, each of which contains a user object as a value.
• Each set of dictionary values ​​is updated every 5 seconds as part of a while loop.
• At the end of a 5-second cycle, 6 dictionaries are added to the datacontract object, each as a different data item.
• The data contract object is then sent over the wire to the client, where there are 6 more dictionaries.
• Then I look at each dictionary of contract data and add or update the contents of its equivalent on the client side, depending on whether the values ​​exist or not.

Summary

• 6 dictionaries on the server side.
• 6 serializable dictionaries in a data contract.
• 6 binding dictionaries on the client side.
• WCF using Net TCP Binding to transfer data over a wire.

Specification

• C # .Net 3.5
• The client side uses one DevExpress form and 9 gridviews and DX tab controls.
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  NetTcpBinding netTcpBinding = new NetTcpBinding(SecurityMode.None);
  
  EndpointAddress endpointAddress = new EndpointAddress(EndpoindAddress);
  InstanceContext context = new InstanceContext(callbackinstance);
  
  netTcpBinding.MaxConnections = 5;
  netTcpBinding.MaxBufferSize = 2147483647;
  netTcpBinding.MaxBufferPoolSize = 2147483647;
  netTcpBinding.MaxReceivedMessageSize = 2147483647;
  netTcpBinding.ReceiveTimeout = TimeSpan.MaxValue;
  netTcpBinding.CloseTimeout = TimeSpan.MaxValue;
  netTcpBinding.TransferMode = TransferMode.Buffered;
  netTcpBinding.ListenBacklog = 5;
  
  DuplexChannelFactory<ISubscription> channelFactory =
     new DuplexChannelFactory<ISubscription>(
            new InstanceContext(this), 
            netTcpBinding,
            endpointAddress);
  
  proxy = channelFactory.CreateChannel();
  

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Answer 1

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Answer 2

, ServiceChannelFactory WCF ?

Answer 3

MaxBufferPoolSize 2 (netTcpBinding.MaxBufferPoolSize = 2147483647;) , .

WCF , OutOfMemoryException.

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