[core] JT plugin should support hadoop.rpc.protection set to anything other than "authentication"

[25/Feb/2013 17:18:37 +0000] middleware   INFO     Processing exception: None: Traceback (most recent call last):
  File "/usr/share/hue/build/env/lib/python2.6/site-packages/Django-1.2.3-py2.6.egg/django/core/handlers/base.py", line 100, in get_response
    response = callback(request, *callback_args, **callback_kwargs)
  File "/usr/share/hue/apps/jobbrowser/src/jobbrowser/views.py", line 102, in jobs
    jobs = get_matching_jobs(request, check_permission)
  File "/usr/share/hue/apps/jobbrowser/src/jobbrowser/views.py", line 494, in get_matching_jobs
    joblist = jobfunc[selection][0]().jobs
  File "/usr/share/hue/desktop/libs/hadoop/src/hadoop/job_tracker.py", line 322, in all_jobs
    joblist = self.client.getAllJobs(self.thread_local.request_context)
  File "/usr/share/hue/desktop/core/src/desktop/lib/thrift_util.py", line 285, in wrapper
    ret = res(*args, **kwargs)
  File "/usr/share/hue/desktop/core/src/desktop/lib/thrift_util.py", line 331, in wrapper
    ret = res(*args, **kwargs)
  File "/usr/share/hue/desktop/libs/hadoop/src/hadoop/../../gen-py/hadoop/api/jobtracker/Jobtracker.py", line 627, in getAllJobs
    return self.recv_getAllJobs()
  File "/usr/share/hue/desktop/libs/hadoop/src/hadoop/../../gen-py/hadoop/api/jobtracker/Jobtracker.py", line 638, in recv_getAllJobs
    (fname, mtype, rseqid) = self._iprot.readMessageBegin()
  File "/usr/share/hue/build/env/lib/python2.6/site-packages/Thrift-0.1-py2.6-linux-x86_64.egg/thrift/protocol/TBinaryProtocol.py", line 126, in readMessageBegin
    sz = self.readI32()
  File "/usr/share/hue/build/env/lib/python2.6/site-packages/Thrift-0.1-py2.6-linux-x86_64.egg/thrift/protocol/TBinaryProtocol.py", line 203, in readI32
    buff = self.trans.readAll(4)
  File "/usr/share/hue/build/env/lib/python2.6/site-packages/Thrift-0.1-py2.6-linux-x86_64.egg/thrift/transport/TTransport.py", line 58, in readAll
    chunk = self.read(sz-have)
  File "/usr/share/hue/desktop/core/src/desktop/lib/thrift_sasl.py", line 125, in read
    self._read_frame()
  File "/usr/share/hue/desktop/core/src/desktop/lib/thrift_sasl.py", line 129, in _read_frame
    header = self._trans.readAll(4)
  File "/usr/share/hue/build/env/lib/python2.6/site-packages/Thrift-0.1-py2.6-linux-x86_64.egg/thrift/transport/TTransport.py", line 58, in readAll
    chunk = self.read(sz-have)
  File "/usr/share/hue/build/env/lib/python2.6/site-packages/Thrift-0.1-py2.6-linux-x86_64.egg/thrift/transport/TSocket.py", line 94, in read
    raise TTransportException('TSocket read 0 bytes')
TTransportException: None