SSHClient: ForwardedPortLocal: memory issue

从 ConnectSSH 入口点以及报告中所示的重复创建 ForwardedPortLocal 开始。重现运行一整夜或重复调用的场景，然后跟踪端口转发的生命周期和释放行为；当重复连接不再显示内存使用量持续增加时，即表示完成。

Hello,

I am using the following code below. I call this ConnectSSH() every 5 seconds (as a test to see how it performs)
After I let this run a night, i see that the used memory increased significantly, and it keeps rising.

After some investigation on my own, i notice that when I remove the "forwardedportlocal" object, (so I don't make such an object, and I obviously don't start it) Then there is no memory issue. The client is created, and then disposed cleanly.
I can see this happening the diagnostic tool of visual studio.

I already added portfwld.stop() and portfwld.dispose() together with of course SshClient.disconnect() and SshClient.dispose()
but that did not help.

I made a version in vb.net and also one in c#, but the results are the same.

I also Commented the connection to the database to show that this is not the issue.

I hope someone can give me some insight of what is happening, or perhaps what I am doing wrong?

    class mySQLviaSHH
    {
        
        public void ConnectSSH()
        {
            using (var SSHClient = new SshClient("myhost", "administrator", "mypassword"))
            {
                try
                {
                    // Console.WriteLine("Trying SSH connection...")
                    SSHClient.Connect();

                    if (SSHClient.IsConnected)
                        Console.WriteLine("SSH connection is active");
                    else
                        Console.WriteLine("SSH connection has failed");

                    Console.WriteLine("Trying port forwarding...");

                    var portFwld = new ForwardedPortLocal("127.0.0.1", "127.0.0.1", 3306);
                    SSHClient.AddForwardedPort(portFwld);
                    portFwld.Start();

                    if (portFwld.IsStarted)
                        Console.WriteLine("Port forwarded: {0}", portFwld.ToString());
                    else
                        Console.WriteLine("Port forwarding has failed.");
                }
                catch (SshException e)
                {
                    Console.WriteLine("SSH client connection error: {0}", e.Message);
                }
                
            }
        }


    }

Public Sub ConnectSSH()
            Using SSHClient = New SshClient("myhost", "administrator", "mypassword")
                Try
                    Console.WriteLine("Trying SSH connection...")
                    SSHClient.Connect()

                    If SSHClient.IsConnected Then
                        Console.WriteLine("SSH connection is active")
                    Else
                        Console.WriteLine("SSH connection has failed")
                    End If

                    Console.WriteLine(vbCrLf & "Trying port forwarding...")

                    Dim portFwld = New ForwardedPortLocal("127.0.0.1", "127.0.0.1", 3306)
                    SSHClient.AddForwardedPort(portFwld)
                    portFwld.Start()

                    If portFwld.IsStarted Then
                        Console.WriteLine("Port forwarded: {0}", portFwld.ToString())

                        '        'Dim dbConnect As DBConnect = New DBConnect(portFwld.BoundHost, "wcs_sch", "root", "dbpassword", "3306")
                        '        'Dim ct = dbConnect.Count("wcs_msg_host")
                        '        'Console.WriteLine(ct.ToString())
                    Else
                        Console.WriteLine("Port forwarding has failed.")
                    End If

                Catch e As SshException
                    Console.WriteLine("SSH client connection error: {0}", e.Message)
                Catch e As System.Net.Sockets.SocketException
                    Console.WriteLine("Socket connection error: {0}", e.Message)
                End Try

            End Using

        End Sub