title: How to use CombineFileInputFormat in Hadoop?
body: <p>I want to use the CombineFileInputFormat of Hadoop 0.20.0 / 0.20.2 such that it processes 1 file per record and also doesn't compromise on data - locality (which it normally takes care of).</p>
  
  <p>It is mentioned in Tom White's Hadoop Definitive Guide but he has not shown how to do it. Instead, he moves on to Sequence Files.</p>
  
  <p>I am pretty confused on what is the meaning of processed variable in a record reader. 
  Any code example would be of tremendous help. </p>
  
  <p>Thanks in advance..</p>