title: How to use hive with multiple users
body: <p>I have several users use the same hive.</p>
  
  <p>Now i want each user to have a private metadata in hive.</p>
  
  <p>example:</p>
  
  <p>user a call show table : a1 , a2, a3 ...</p>
  
  <p>user b call show table : b1 , b2 ,b3 ... </p>
  
  <p>Of course when user run query they can not access table of other user.</p>
  
  <p>thanks.</p>