title: Mysql cluster for dummies
body: <p>So what's the idea behind a cluster? </p>
  
  <ol>
  <li><p>You have multiple machines with the same copy of the DB where you spread the read/write? Is this correct?</p></li>
  <li><p>How does this idea work? When I make a select query the cluster analyzes which server has less read/writes and points my query to that server?</p></li>
  <li><p>When you should start using a cluster, I know this is a tricky question, but mabe someone can give me an example like, 1 million visits and a 100 million rows DB.</p></li>
  </ol>