title: Is MapR a substitute for MapReduce
body: <p>I see a substitution for mapreduce jobs, MapR, which can read data directly from stream and process it. Is my understanding correct?</p>
  
  <ol>
  <li>Are there any samples that I can refer?</li>
  <li>Is it commercial?</li>
  <li>Is there any catch in using it?</li>
  <li>Is it a substitution for flume?</li>
  <li>Can we use it with apache hadoop? If yes, then why does the distribution only talk about yarn and mapreduce and not MapR?</li>
  </ol>
  
  <p>Thanks in advance.</p>