title: Does HDFS encrypt or compress the data while storing?
body: <p>When I put a file into HDFS, for example</p>
  
  <pre><code>$ ./bin/hadoop/dfs -put /source/file input
  </code></pre>
  
  <ul>
  <li>Is the file <strong>compressed</strong> while storing?</li>
  <li>Is the file <strong>encrypted</strong> while storing? Is there a config setting that we can specify to change whether it is encrypted or not?</li>
  </ul>