title: The process appear again automatically after I killed it
body: <p>I try to kill a process with <code>sudo kill 30602</code>. But after I killed it I use <code>ps aux | grep gmond</code> to check, it appear again with another pid.That's like:</p>
  
  <pre><code>ganglia  30997  0.0  0.1 121812  2128 ?        Ssl  16:05   0:00 /usr/sbin/gmond --pid-file=/var/run/ganglia-monitor.pid
  </code></pre>
  
  <p>Whatever how I kill it, it just appear again with another pid, even with <code>kill -9</code>.</p>
  
  <p>What's the problem? And how to solve this?</p>