Esty's Kale stack is an opensource way to do this with graphite data.<p><a href="http://codeascraft.com/2013/06/11/introducing-kale/" rel="nofollow">http://codeascraft.com/2013/06/11/introducing-kale/</a>
<a href="https://github.com/etsy/skyline" rel="nofollow">https://github.com/etsy/skyline</a>
<a href="https://github.com/etsy/oculus" rel="nofollow">https://github.com/etsy/oculus</a>