Description of problem:

1) connect host to storage pool
2) might get the following error message:


Thread-78::ERROR::2012-11-20 22:26:32,819::task::853::TaskManager.Task::(_setError) Task=`bcbf77f1-1382-4483-96f9-4390624f31ad`::Unexpected error
Traceback (most recent call last):
  File "/usr/share/vdsm/storage/task.py", line 861, in _run
    return fn(*args, **kargs)
  File "/usr/share/vdsm/logUtils.py", line 38, in wrapper
    res = f(*args, **kwargs)
  File "/usr/share/vdsm/storage/hsm.py", line 862, in connectStoragePool
    return self._connectStoragePool(spUUID, hostID, scsiKey, msdUUID, masterVersion, options)
  File "/usr/share/vdsm/storage/hsm.py", line 904, in _connectStoragePool
    res = pool.connect(hostID, scsiKey, msdUUID, masterVersion)
  File "/usr/share/vdsm/storage/sp.py", line 648, in connect
    self.__rebuild(msdUUID=msdUUID, masterVersion=masterVersion)
  File "/usr/share/vdsm/storage/sp.py", line 1178, in __rebuild
    self.masterDomain = self.getMasterDomain(msdUUID=msdUUID, masterVersion=masterVersion)
  File "/usr/share/vdsm/storage/sp.py", line 1526, in getMasterDomain
    raise se.StoragePoolWrongMaster(self.spUUID, msdUUID)
StoragePoolWrongMaster: Wrong Master domain or its version: 'SD=25a0b810-c6a9-48cc-9f11-9ed816c7648a, pool=96d1b5db-4798-4284-b355-822980dc120d'
Thread-78::DEBUG::2012-11-20 22:26:32,822::task::872::TaskManager.Task::(_run) Task=`bcbf77f1-1382-4483-96f9-4390624f31ad`::Task._run: bcbf77f1-1382-4483-96f9-4390624f31ad ('96d1b5db-4798-4284-b355-822980dc120d', 1, '96d1b5db-4798-4284-b355-822980dc120d', '25a0b810-c6a9-48cc-9f11-9ed816c7648a', 1) {} failed - stopping task
Thread-78::DEBUG::2012-11-20 22:26:32,822::task::1199::TaskManager.Task::(stop) Task=`bcbf77f1-1382-4483-96f9-4390624f31ad`::stopping in state preparing (force False)


expected results:

1) please distinguish between wrong master passed or wrong master version and prompt error accordingly.