title: HBase copy one row (rename row key) in Java
body: <p>I know in HBase, the key of the row can not be changed. </p>
  
  <p>But I really need a row key rename function. 
  How can I copy one row to another row in HBase using JAVA? </p>
  
  <p>e.g. I have existing row with key "key1", and I want to create a row with key "key2" copied from "key1" row. </p>
  
  <p>Thanks a million!</p>