Polling interval for xhr for socket.io 1.0

Question

How do I set the polling interval for xhr fallback for socket.io 1.0? It looks like it polls every second when not in websocket mode but I'd prefer if the polling interval is every 2 seconds to reduce load on the server.

I read through the documentation for both socket.io and engine.io about the options object but couldn't find anything in there that would set polling interval.

Answer 1

io.set("polling duration", 2);

Although "set" is gone. So I think that you will have to do it in Server initialization

var socket = require('socket.io')({
    "polling duration": 2
});