title: In Hadoop, where can i change default url ports 50070 and 50030 for namenode and jobtracker webpages
body: <p>There must be a way to change the ports 50070 and 50030 so that the following urls display the clustr statuses on the ports i pick</p>
  
  <pre><code>NameNode - http://localhost:50070/
  JobTracker - http://localhost:50030/
  </code></pre>