title: How do multiple reducers output only one part-file in Hadoop?
body: <p>In my map-reduce job, I use 4 reducers to implement the reducer jobs. So by doing this, the final output will generate 4 part-files.: part-0000 part-0001 part-0002 part-0003</p>
  
  <p>My question is how can I set the configuration of hadoop to output only one part-file, although the hadoop use 4 reducers to work?</p>