title: how hive query is executed in hadoop
body: <p>I need to know how is hive query executed on distributed system like Hadoop. I have checked other questions but none of them explained in detail.</p>
  
  <p>I am looking for the full execution process. As in I want to know why hive join queries are taking more time than simple select query.</p>
  
  <p>Anyone who is aware of the hive execution process, please explain.</p>
  
  <p>PS: I am using hortonworks data platform as Hadoop framework.</p>