title: What should be hadoop.tmp.dir ?
body: <p>Hadoop has configuration parameter <code>hadoop.tmp.dir</code> which, as per documentation, is `<em>"A base for other temporary directories."</em> I presume, this path refers to local file system.</p>
  
  <p>I  set this value to <code>/mnt/hadoop-tmp/hadoop-${user.name}</code>. After formatting the namenode and starting all services, I see exactly same path created on HDFS. </p>
  
  <p><em>Does this mean,  <code>hadoop.tmp.dir</code> refers to temporary location on <strong>HDFS</strong>?</em></p>