How to change remote service on runtime?
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am doing a server-client project using .NET remoting. The server application are installed on 2 servers (exactly the same). I used "singleton" type on the remote object. When a client application starts, it uses the 1st server as primary and build a TCP channel with it. The code is: TcpChannel channel = new TcpChannel(port); ChannelServices.RegisterChannel(channel); WellKnownClientTypeEntry entry = new WellKnownClientTypeEntry( typeof(myRemoteObj), RmtObjUrl); RemotingConfiguration.RegisterWellKnownClientType(entry); Everything goes smoothly till now. But my design is, if the server goes down, client should be able to switch to the other server without closing and re-opening. I used the same code to register the 2nd server, showing as blow: WellKnownClientTypeEntry entry = new WellKnownClientTypeEntry( typeof(myRemoteObj), new_RmtObjUrl); RemotingConfiguration.RegisterWellKnownClientType(entry); The value of "new_RmtObjUrl" now is the 2nd server's location and port. The error occurs at : RemotingConfiguration.RegisterWellKnownClientType(entry); Error message is: An unhandled exception of type 'System.Runtime.Remoting.RemotingException' occurred in mscorlib.dll Additional information: Attempt to redirect activation of type 'myRemoteObj, myRemoteObj' which is already redirected. How can i un-register the privous activation of "myRemoteObj"? Or is there anyway to build a new channel to the 2nd server? Thanks in advance on your kindly follow up! I have been stick on it for the whole night :(
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am doing a server-client project using .NET remoting. The server application are installed on 2 servers (exactly the same). I used "singleton" type on the remote object. When a client application starts, it uses the 1st server as primary and build a TCP channel with it. The code is: TcpChannel channel = new TcpChannel(port); ChannelServices.RegisterChannel(channel); WellKnownClientTypeEntry entry = new WellKnownClientTypeEntry( typeof(myRemoteObj), RmtObjUrl); RemotingConfiguration.RegisterWellKnownClientType(entry); Everything goes smoothly till now. But my design is, if the server goes down, client should be able to switch to the other server without closing and re-opening. I used the same code to register the 2nd server, showing as blow: WellKnownClientTypeEntry entry = new WellKnownClientTypeEntry( typeof(myRemoteObj), new_RmtObjUrl); RemotingConfiguration.RegisterWellKnownClientType(entry); The value of "new_RmtObjUrl" now is the 2nd server's location and port. The error occurs at : RemotingConfiguration.RegisterWellKnownClientType(entry); Error message is: An unhandled exception of type 'System.Runtime.Remoting.RemotingException' occurred in mscorlib.dll Additional information: Attempt to redirect activation of type 'myRemoteObj, myRemoteObj' which is already redirected. How can i un-register the privous activation of "myRemoteObj"? Or is there anyway to build a new channel to the 2nd server? Thanks in advance on your kindly follow up! I have been stick on it for the whole night :(
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Qin hi, You might use
Activator:SessionInterface.ITryClass oObj = (SessionInterface.ITryClass)Activator.GetObject( typeof(SessionInterface.ITryClass),"tcp://localhost:1967/TcpSession");