title: What is the purpose of "uber mode" in hadoop?
body: <p>Hi I am a big data newbie. I searched all over the internet to find what exactly uber mode is. The more I searched the more I got confused. Can anybody please help me by answering my questions?</p>
  
  <ul>
  <li>What does uber mode do? </li>
  <li>Does it works differently in mapred 1.x and 2.x?</li>
  <li>And where can I find the setting for it?</li>
  </ul>