Description of problem:
 The following issue was seen during automated kernel testing:
 <ProtocolError for beaker.engineering.redhat.com/client/: 500 INTERNAL SERVER ERROR>

Version-Release number of selected component (if applicable):
 Beaker 20.0 

How reproducible:
 There were a few instance seen during same time frame.

Steps to Reproduce:
1.

Actual results:
 https://beaker.engineering.redhat.com/recipes/1944142
 http://beaker-archive.app.eng.bos.redhat.com/beaker-logs/2015/04/9436/943693/1944142/console.log
---<-snip->---
2015-04-28 17:23:26,324 backend _send_cmd: INFO Command ['Command', 'forward', '561ce355-29c1-40b0-9eda-801aab150397', {'event': ['Event', 'extend_watchdog', '48334067-9560-490f-8e16-84e5f261d6a4', {'source': 'beah_beaker_backend', 'id': '43be7776-a96c-4927-a7ec-ea0d931a45a9'}, None, {'timeout': 14394}]}] sent.  
2015-04-28 17:24:47,434 backend _run_task: ERROR Exception raised when running task. Setting to finished  
Traceback (most recent call last):  
  File "/usr/lib/python2.6/site-packages/beah/backends/beakerlc.py", line 598, in _run_task  
    thingy.getResult()  
  File "/usr/lib64/python2.6/site-packages/twisted/internet/defer.py", line 584, in getResult  
    self.result.raiseException()  
  File "/usr/lib64/python2.6/site-packages/twisted/web/xmlrpc.py", line 307, in parseResponse  
    response = xmlrpclib.loads(contents)[0][0]  
  File "/usr/lib64/python2.6/xmlrpclib.py", line 1184, in loads  
    return u.close(), u.getmethodname()  
  File "/usr/lib64/python2.6/xmlrpclib.py", line 838, in close  
    raise Fault(**self._stack[0])  
Fault: <Fault 1: "<class 'xmlrpclib.ProtocolError'>:<ProtocolError for beaker.engineering.redhat.com/client/: 500 INTERNAL SERVER ERROR>">  
2015-04-28 17:24:47,482 backend simple_recipe: ERROR Encountered problem while running task '30174179'.  
Traceback (most recent call last):  
  File "/usr/lib/python2.6/site-packages/beah/backends/beakerlc.py", line 517, in simple_recipe  
    result = task.getResult()  
  File "/usr/lib64/python2.6/site-packages/twisted/internet/defer.py", line 584, in getResult  
    self.result.raiseException()  
  File "/usr/lib64/python2.6/site-packages/twisted/internet/defer.py", line 605, in _deferGenerator  
    result = g.next()  
  File "/usr/lib/python2.6/site-packages/beah/backends/beakerlc.py", line 598, in _run_task  
    thingy.getResult()  
  File "/usr/lib64/python2.6/site-packages/twisted/internet/defer.py", line 584, in getResult  
    self.result.raiseException()  
  File "/usr/lib64/python2.6/site-packages/twisted/web/xmlrpc.py", line 307, in parseResponse  
    response = xmlrpclib.loads(contents)[0][0]  
  File "/usr/lib64/python2.6/xmlrpclib.py", line 1184, in loads  
    return u.close(), u.getmethodname()  
  File "/usr/lib64/python2.6/xmlrpclib.py", line 838, in close  
    raise Fault(**self._stack[0])  
Fault: <Fault 1: "<class 'xmlrpclib.ProtocolError'>:<ProtocolError for beaker.engineering.redhat.com/client/: 500 INTERNAL SERVER ERROR>">  
---<-snip->---

Expected results:
 no 500 INTERNAL SERVER ERROR

Additional info: