Hello Ranjit! Running 20 nodes one one server is wasteful. I expect you would need to have ports range of 20 to run 20 nodes. This of course changes if each node runs under its own IP address (as it happens with containers).
Also, client nodes don't need to bind to a fixed port. Any chance you could make some of them clients? Regards, -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/
