title: pssh, Time out, killed by signal 9
body: <p>I am using <code>PSSH</code> to run command on other machines to implementing <code>parallel compute</code> using <code>IPyParallel</code>, but I encountered a problem, my command is </p>
  
  <pre><code>pssh -P -h ip.txt -i ipengine --file=~/parallel/test/ipcontroller-engine.json
  </code></pre>
  
  <p>And after a while, it returned:</p>
  
  <pre><code>[1] 11:54:41 [FAILURE] 192.168.0.112 Timed out, Killed by signal 9
  Stderr: 2015-10-12 11:53:41.593 [IPEngineApp] Loading url_file u'/home/fit/parallel/test/ipcontroller-engine.json'
  2015-10-12 11:53:41.595 [IPEngineApp] Registering with controller at tcp://192.168.0.115:59413
  2015-10-12 11:53:41.628 [IPEngineApp] Starting to monitor the heartbeat signal from the hub every 3010 ms.
  2015-10-12 11:53:41.630 [IPEngineApp] Completed registration with id 0
  [2] 11:54:41 [FAILURE] 192.168.0.104 Timed out, Killed by signal 9
  Stderr: 2015-10-12 11:53:41.647 [IPEngineApp] Loading url_file u'/home/fit/parallel/test/ipcontroller-engine.json'
  2015-10-12 11:53:41.648 [IPEngineApp] Registering with controller at tcp://192.168.0.115:59413
  2015-10-12 11:53:41.682 [IPEngineApp] Starting to monitor the heartbeat signal from the hub every 3010 ms.
  2015-10-12 11:53:41.684 [IPEngineApp] Completed registration with id 1
  </code></pre>
  
  <p>I think there is something wrong with <code>PSSH</code>, but I don't know how to solve it.</p>