def weighted_parts(self):
try:
return self.parts * self.replicas / \
sum(d['weight'] for d in self.devs if d is not None)
except ZeroDivisionError:
raise exceptions.EmptyRingError('There are no devices in this '
'ring, or all devices have been '
'deleted')
def weight_of_one_part(self):
"""
Returns the weight of each partition as calculated from the
total weight of all the devices.
"""
try:
return self.parts * self.replicas / \
sum(d['weight'] for d in self._iter_devs())
except ZeroDivisionError:
raise exceptions.EmptyRingError('There are no devices in this '
'ring, or all devices have been '
'deleted')
