def _get_pool_usage(self, pool, host, timestamp):
total = pool["total_capacity_gb"]
free = pool["free_capacity_gb"]
unknowns = ["unknown", "infinite", None]
if (total in unknowns) or (free in unknowns):
return {}
allocated = pool["allocated_capacity_gb"]
provisioned = pool["provisioned_capacity_gb"]
reserved = pool["reserved_percentage"]
ratio = pool["max_over_subscription_ratio"]
support = pool["thin_provisioning_support"]
virtual_free = utils.calculate_virtual_free_capacity(
total,
free,
provisioned,
support,
ratio,
reserved,
support)
pool_usage = dict(
type='pool',
name_to_id='#'.join([host, pool['pool_name']]),
total=float(total),
free=float(free),
allocated=float(allocated),
provisioned=float(provisioned),
virtual_free=float(virtual_free),
reported_at=timestamp)
return pool_usage
def _weigh_object(self, host_state, weight_properties):
"""Higher weights win. We want spreading to be the default."""
free_space = host_state.free_capacity_gb
total_space = host_state.total_capacity_gb
if (free_space == 'infinite' or free_space == 'unknown' or
total_space == 'infinite' or total_space == 'unknown'):
# (zhiteng) 'infinite' and 'unknown' are treated the same
# here, for sorting purpose.
# As a partial fix for bug #1350638, 'infinite' and 'unknown' are
# given the lowest weight to discourage driver from report such
# capacity anymore.
free = -1 if CONF.capacity_weight_multiplier > 0 else float('inf')
else:
# NOTE(xyang): If 'provisioning:type' is 'thick' in extra_specs,
# we will not use max_over_subscription_ratio and
# provisioned_capacity_gb to determine whether a volume can be
# provisioned. Instead free capacity will be used to evaluate.
thin = True
vol_type = weight_properties.get('volume_type', {}) or {}
provision_type = vol_type.get('extra_specs', {}).get(
'provisioning:type')
if provision_type == 'thick':
thin = False
free = utils.calculate_virtual_free_capacity(
total_space,
free_space,
host_state.provisioned_capacity_gb,
host_state.thin_provisioning_support,
host_state.max_over_subscription_ratio,
host_state.reserved_percentage,
thin)
return free
def _get_pool_usage(self, pool, host, timestamp):
total = pool["total_capacity_gb"]
free = pool["free_capacity_gb"]
unknowns = ["unknown", "infinite", None]
if (total in unknowns) or (free in unknowns):
return {}
allocated = pool["allocated_capacity_gb"]
provisioned = pool["provisioned_capacity_gb"]
reserved = pool["reserved_percentage"]
ratio = pool["max_over_subscription_ratio"]
support = pool["thin_provisioning_support"]
virtual_free = utils.calculate_virtual_free_capacity(
total,
free,
provisioned,
support,
ratio,
reserved,
support)
pool_usage = dict(
type='pool',
name_to_id='#'.join([host, pool['pool_name']]),
total=float(total),
free=float(free),
allocated=float(allocated),
provisioned=float(provisioned),
virtual_free=float(virtual_free),
reported_at=timestamp)
return pool_usage
def _weigh_object(self, host_state, weight_properties):
"""Higher weights win. We want spreading to be the default."""
free_space = host_state.free_capacity_gb
total_space = host_state.total_capacity_gb
if (free_space == 'infinite' or free_space == 'unknown'
or total_space == 'infinite' or total_space == 'unknown'):
# (zhiteng) 'infinite' and 'unknown' are treated the same
# here, for sorting purpose.
# As a partial fix for bug #1350638, 'infinite' and 'unknown' are
# given the lowest weight to discourage driver from report such
# capacity anymore.
free = -1 if CONF.capacity_weight_multiplier > 0 else float('inf')
else:
free = utils.calculate_virtual_free_capacity(
total_space, free_space, host_state.provisioned_capacity_gb,
host_state.thin_provisioning_support,
host_state.max_over_subscription_ratio,
host_state.reserved_percentage)
return free
def _weigh_object(self, host_state, weight_properties):
"""Higher weights win. We want spreading to be the default."""
free_space = host_state.free_capacity_gb
total_space = host_state.total_capacity_gb
if (free_space == 'infinite' or free_space == 'unknown' or
total_space == 'infinite' or total_space == 'unknown'):
# (zhiteng) 'infinite' and 'unknown' are treated the same
# here, for sorting purpose.
# As a partial fix for bug #1350638, 'infinite' and 'unknown' are
# given the lowest weight to discourage driver from report such
# capacity anymore.
free = -1 if CONF.capacity_weight_multiplier > 0 else float('inf')
else:
free = utils.calculate_virtual_free_capacity(
total_space,
free_space,
host_state.provisioned_capacity_gb,
host_state.thin_provisioning_support,
host_state.max_over_subscription_ratio,
host_state.reserved_percentage)
return free
