Ceph

2012-01-10T12:13:33.260 INFO:teuthology.task.kernel:Checking client mon.a for new kernel version...
2012-01-10T12:13:33.261 INFO:teuthology.task.kernel:Checking kernel version of mon.a...
2012-01-10T12:13:33.261 DEBUG:teuthology.orchestra.run:Running: 'uname -r'
2012-01-10T12:13:33.261 ERROR:teuthology.run_tasks:Saw exception from tasks
Traceback (most recent call last):
  File "/var/lib/teuthworker/teuthology/teuthology/run_tasks.py", line 25, in run_tasks
    manager = _run_one_task(taskname, ctx=ctx, config=config)
  File "/var/lib/teuthworker/teuthology/teuthology/run_tasks.py", line 14, in _run_one_task
    return fn(**kwargs)
  File "/var/lib/teuthworker/teuthology/teuthology/task/kernel.py", line 252, in task
    assert not need_to_install(ctx, client, sha1), \
  File "/var/lib/teuthworker/teuthology/teuthology/task/kernel.py", line 82, in need_to_install
    stdout=version_fp,
  File "/var/lib/teuthworker/teuthology/teuthology/orchestra/cluster.py", line 52, in run
    return [remote.run(**kwargs) for remote in remotes]
  File "/var/lib/teuthworker/teuthology/teuthology/orchestra/remote.py", line 40, in run
    r = self._runner(client=self.ssh, **kwargs)
  File "/var/lib/teuthworker/teuthology/teuthology/orchestra/run.py", line 199, in run
    r = execute(client, args)
  File "/var/lib/teuthworker/teuthology/teuthology/orchestra/run.py", line 58, in execute
    (in_, out, err) = client.exec_command(cmd)
  File "/var/lib/teuthworker/teuthology/virtualenv/lib/python2.6/site-packages/paramiko/client.py", line 363, in exec_command
    chan = self._transport.open_session()
  File "/var/lib/teuthworker/teuthology/virtualenv/lib/python2.6/site-packages/paramiko/transport.py", line 658, in open_session
    return self.open_channel('session')
  File "/var/lib/teuthworker/teuthology/virtualenv/lib/python2.6/site-packages/paramiko/transport.py", line 713, in open_channel
    raise SSHException('SSH session not active')
SSHException: SSH session not active