Reproduction for https://github.com/aws/aws-sdk-js/issues/171

gistfile1.txt

#!/usr/bin/env coffee

aws = require 'aws-sdk'

ec2 = new aws.EC2({region: 'us-west-1'})

doDescribeRegions = ->
  ec2.describeRegions {}, (err, data) ->
    if err?
      console.log 'ERR:', err
      return
    else
      console.log 'DATA:', data

doDescribeRegions()

for i in [1..24]
  setTimeout doDescribeRegions, i * 60 * 60 * 1000