Vector Scaling Based on hdfsBytesWritten 

![screen shot 2013-10-10 at 10 37 33 am](https://f.cloud.github.com/assets/5580289/1308671/a8c0e98c-31d2-11e3-8b03-d0cb5d90eacd.png)

@sagemintblue  @billonahill 

Could you take a look as this as well please.