Jeff Bezos, in his annual letter to Amazon shareholders:
State management is the heart of any system that needs to grow to
very large size. Many years ago, Amazon’s requirements reached a
point where many of our systems could no longer be served by any
commercial solution: our key data services store many petabytes of
data and handle millions of requests per second. To meet these
demanding and unusual requirements, we’ve developed several
alternative, purpose-built persistence solutions, including our
own key-value store and single table store.
I.e., if Amazon weren’t a serious technology company capable of inventing what it needed, if Amazon were “just a store”, its growth would have been limited by technology.
★ Wednesday, 27 April 2011