title: So what's the difference between distributed and clustered?
body: <p>I've heard these two terms quite many times,</p>
  
  <p>but always confused.</p>
  
  <p>My guess:</p>
  
  <ol>
  <li>for distributed servers,each server has its own unique data to serve</li>
  <li>for clustered servers,each server is supposed to have the same data given enough time to synchronize</li>
  </ol>
  
  <p>Is that the difference?</p>