title: Hadoop slave files configuration
body: <p>So I have a master and 3 slave machines and the <code>slaves</code> file on master machine has following entries:</p>
  
  <pre><code>master
  slave1
  slave2
  slave3
  </code></pre>
  
  <p>Do I have to place this same slaves file in all of the slave machines or should i remove the first line having master and then place in slave machines?</p>