title: How to avoid generating empty .deflate files for a Hive query?
body: <p>When I run a Hive query, a large number of empty <code>.deflate</code> files are generated (they are actually about 8 bytes, which I think is the minimum size for a <code>.deflate</code> file).  I suspect this is happening because the query requires a large number of reducers.  I am wondering if there is a way to avoid generating these empty <code>.deflate</code> files?</p>
  
  <p>Thanks in advance,</p>
  
  <p>Lin</p>