title: Change block size of dfs file
body: <p>My map is currently inefficient when parsing one particular set of files (a total of 2 TB). I'd like to change the block size of files in the Hadoop dfs (from 64MB to 128 MB). I can't find how to do it in the documentation for only one set of files and not the entire cluster.</p>
  
  <p>Which command changes the block size when I upload? (Such as copying from local to dfs.)  </p>