ganglia mem data to dashing

ganglia_mem.rb

require 'httparty'
require 'addressable/uri'

uri = Addressable::URI.escape "graph.php?r=hour&c=Cluster&m=load_one&s=by+name&mc=2&g=mem_report&json=1"

SCHEDULER.every '15s', :first_in => 0 do |job|
  points = []
  response = HTTParty.get(uri)
  response.take(4).each do |data|
    step = 0
    data["datapoints"].each do |val,secs|
      if val == "NaN"
        next
      end
      if points[step] == nil
        # -14400 for EST
        points << { x: secs-14400, y: val.round }
      else
        points[step][:y] += val.round
      end
      step += 1
    end
  end
  send_event('ganglia_mem', { points: points })

end