Big Data Is All Relative—or Relational by Mike Azevedo via @infomgmt

But as we foam at the mouth over the next great revelation that will emerge from the Hadoop cluster, a new wave of cloud-enabled applications are testing the limits of our traditional relational database systems.

RDBMS are so ensconced into our systems that it has to be better to have new innovations able to use them rather than the expense of redeveloping every thing . Yes I admit things would work better and faster with the new databases, but sometimes there is not the time nor the resources to move the data.