title: What are disadvantages of the Hadoop distribution MapR compared to Cloudera and Hortonworks?
body: <p>Cloudera and Hortonworks use HDFS, one of the basic concepts of Apache Hadoop. MapR uses its own concept / implementation. Instead of HDFS, you use the native file system directly. You can find a lot of advantages using this approach on the website of MapR. </p>
  
  <p>I wonder what are the disadvantages of this approach?</p>