Error: socket hang up code: 'ECONNRESET' in Node.js

I am trying to post files using HTTP request on Node.js ,but after some files posted then it randomly shows [Error: socket hang up] code: 'ECONNRESET'

My code for file sending is,

var http = require('http');
var request = require('request');
var fs= require('fs');
var server = http.createServer(function (request, response) {
  response.writeHead(200, {"Content-Type": "text/plain"});
  response.end("Hello World\n");
});

var serverUrl='http://localhost:3000'; 

function uploadFile(){
        var req = request.post(serverUrl+'/api/file/upload', function (err, resp, body) {
        if (err) {
            console.log(err);
          } else {
      console.log(body);
          }
        });
        var form = req.form();
        form.append('file', fs.createReadStream('abcd.mp3'));
}

uploadFile();

server.listen(8000);

via Sabreena