test_node.js

var net = require('net');
var sleep = require('sleep');

var client = new net.Socket();
client.connect(6379, '127.0.0.1', function() {
    console.log('Connected');
    sleep.sleep(10); // wait for data and RST package
});

client.on('data', function(data) {
    console.log('Received: ' + data);
});

client.on('close', function() {
    console.log('Connection closed');
});

Output

$ node test_nodejs.js
Connected
Received: -ERR max number of clients reached

Connection closed

The data in the buffer can be read event the RST already came into the system