What happens to hadoop job when the NameNode is down?
<p>In Hadoop 1.2.1, I would like to know some basic understanding on these  below questions</p>

<ol>
<li><p>Who receives the hadoop job? Is it NameNode or JobTracker?</p></li>
<li><p>What will happen if somebody submits a Hadoop job when the NameNode is down?Does the hadoop job fail? or Does it get in to Hold?</p></li>
<li><p>What will happen if somebody submits a Hadoop job when the JobTracker is down? Does the hadoop job fail? or Does it get in to Hold?</p></li>
</ol>