2013-02-19 21:51:01,484 Machine:3: juju.agents.machine DEBUG: Stopping service unit: ubuntu/0 ...
2013-02-19 21:51:01,484 Machine:3: unit.deploy INFO: Stopping service unit ubuntu/0...
2013-02-19 21:51:01,510 unit:ubuntu/0: unit.lifecycle DEBUG: pre-stop acquire, running:True
2013-02-19 21:51:01,510 unit:ubuntu/0: unit.lifecycle DEBUG: stopping relation lifecycles
2013-02-19 21:51:01,511 unit:ubuntu/0: unit.lifecycle DEBUG: stopped unit lifecycle
2013-02-19 21:51:01,511 unit:ubuntu/0: hook.executor DEBUG: stopped
2013-02-19 21:51:01,517 unit:ganglia-node/0: unit.relation.watch DEBUG: relation membership change
2013-02-19 21:51:01,579 Machine:3: unit.deploy INFO: Stopped service unit ubuntu/0
2013-02-19 21:52:18,003 unit:ganglia-node/0: twisted ERROR: Unhandled error in Deferred:
2013-02-19 21:52:18,006 unit:ganglia-node/0: twisted ERROR: Unhandled Error
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 362, in callback
    self._startRunCallbacks(result)
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 458, in _startRunCallbacks
    self._runCallbacks()
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 545, in _runCallbacks
    current.result = callback(current.result, *args, **kw)
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1095, in gotResult
    _inlineCallbacks(r, g, deferred)
--- <exception caught here> ---
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1039, in _inlineCallbacks
    result = g.send(result)
  File "/usr/lib/python2.7/dist-packages/juju/state/base.py", line 139, in __topology_changed
    yield watch_topology_function(self._old_topology, new_topology)
  File "/usr/lib/python2.7/dist-packages/juju/state/service.py", line 567, in watch_topology
    self._internal_id)
  File "/usr/lib/python2.7/dist-packages/juju/state/topology.py", line 486, in get_relations_for_service
    self._assert_service(service_id)
  File "/usr/lib/python2.7/dist-packages/juju/state/topology.py", line 516, in _assert_service
    "Service not found: %s" % service_id)
juju.state.topology.InternalTopologyError: Service not found: service-0000000005

2013-02-19 21:52:18,164 unit:ganglia-node/0: juju.agents.unit DEBUG: Configuration Changed
2013-02-19 21:52:18,168 unit:ganglia-node/0: twisted ERROR: Unhandled error in Deferred:
2013-02-19 21:52:18,171 unit:ganglia-node/0: twisted ERROR: Unhandled Error
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 391, in errback
    self._startRunCallbacks(fail)
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 458, in _startRunCallbacks
    self._runCallbacks()
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 545, in _runCallbacks
    current.result = callback(current.result, *args, **kw)
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1095, in gotResult
    _inlineCallbacks(r, g, deferred)
--- <exception caught here> ---
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1037, in _inlineCallbacks
    result = result.throwExceptionIntoGenerator(g)
  File "/usr/lib/python2.7/dist-packages/twisted/python/failure.py", line 382, in throwExceptionIntoGenerator
    return g.throw(self.type, self.value, self.tb)
  File "/usr/lib/python2.7/dist-packages/juju/state/service.py", line 601, in watcher
    yield callback(change_event)
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1037, in _inlineCallbacks
    result = result.throwExceptionIntoGenerator(g)
  File "/usr/lib/python2.7/dist-packages/twisted/python/failure.py", line 382, in throwExceptionIntoGenerator
    return g.throw(self.type, self.value, self.tb)
  File "/usr/lib/python2.7/dist-packages/juju/agents/unit.py", line 226, in cb_watch_config_changed
    yield self.workflow.fire_transition("configure")
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1037, in _inlineCallbacks
    result = result.throwExceptionIntoGenerator(g)
  File "/usr/lib/python2.7/dist-packages/twisted/python/failure.py", line 382, in throwExceptionIntoGenerator
    return g.throw(self.type, self.value, self.tb)
  File "/usr/lib/python2.7/dist-packages/juju/lib/statemachine.py", line 183, in fire_transition
    yield self.set_inflight(transition_id)
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1037, in _inlineCallbacks
    result = result.throwExceptionIntoGenerator(g)
  File "/usr/lib/python2.7/dist-packages/twisted/python/failure.py", line 382, in throwExceptionIntoGenerator
    return g.throw(self.type, self.value, self.tb)
  File "/usr/lib/python2.7/dist-packages/juju/lib/statemachine.py", line 292, in set_inflight
    yield self._store(state)
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1037, in _inlineCallbacks
    result = result.throwExceptionIntoGenerator(g)
  File "/usr/lib/python2.7/dist-packages/twisted/python/failure.py", line 382, in throwExceptionIntoGenerator
    return g.throw(self.type, self.value, self.tb)
  File "/usr/lib/python2.7/dist-packages/juju/unit/workflow.py", line 237, in _store
    yield retry_change(self._client, self.zk_state_path, update_state)
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1037, in _inlineCallbacks
    result = result.throwExceptionIntoGenerator(g)
  File "/usr/lib/python2.7/dist-packages/twisted/python/failure.py", line 382, in throwExceptionIntoGenerator
    return g.throw(self.type, self.value, self.tb)
  File "/usr/lib/python2.7/dist-packages/txzookeeper/utils.py", line 58, in retry_change
    new_content = yield change_function(content, stat)
  File "/usr/lib/python2.7/dist-packages/juju/unit/workflow.py", line 229, in update_state
    unit_data = serializer.load(content)
  File "/usr/lib/python2.7/dist-packages/juju/lib/serializer.py", line 13, in load
    return _load(value, Loader=CSafeLoader)
  File "/usr/lib/python2.7/dist-packages/yaml/__init__.py", line 69, in load
    loader = Loader(stream)
  File "/usr/lib/python2.7/dist-packages/yaml/cyaml.py", line 24, in __init__
    CParser.__init__(self, stream)
  File "_yaml.pyx", line 301, in _yaml.CParser.__init__ (ext/_yaml.c:2229)
    
exceptions.TypeError: a string or stream input is required