title: Difference Between typical Hadoop Architecture and MapR architecture
body: <p>I know that <code>Hadoop</code> is based on Master/Slave architecture </p>
  
  <p><code>HDFS</code> works with <code>NameNodes</code> and <code>DataNodes</code></p>
  
  <p>and <code>MapReduce</code> works with <code>jobtrackers</code> and <code>Tasktrackers</code> </p>
  
  <p>But I can't find all these services on <code>MapR</code>, I find out that it has its own Architecture with its own services </p>
  
  <p>I'm a little bit confused, could any one please tell me what is the difference between using Hadoop only and using it with MapR !</p>