title: Permission Denied error while running start-dfs.sh
body: <p>I am getting this error while performing <code>start-dfs.sh</code></p>
  
  <pre><code>Starting namenodes on [localhost] 
  pdsh@Gaurav: localhost: rcmd: socket: Permission denied 
  Starting datanodes
  pdsh@Gaurav: localhost: rcmd: socket: Permission denied
  Starting secondary namenodes [Gaurav]
  pdsh@Gaurav: Gaurav: rcmd: socket: Permission denied 2017-03-13 09:39:29,559 
  WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
  </code></pre>
  
  <p>Using hadoop 3.0 alpha 2 version.</p>
  
  <p>Any help is appreciated</p>