def get_constraint_matrix(self, hosts, filter_properties):
num_hosts = len(hosts)
num_instances = filter_properties.get('num_instances')
constraint_matrix = [[True for j in xrange(num_instances)]
for i in xrange(num_hosts)]
scheduler_hints = filter_properties.get('scheduler_hints') or {}
affinity_uuids = scheduler_hints.get('same_rack', [])
if not affinity_uuids:
return constraint_matrix
if isinstance(affinity_uuids, six.string_types):
affinity_uuids = [affinity_uuids]
host_racks_map = solver_utils.get_host_racks_map(hosts)
affinity_racks = set([])
affinity_hosts = set([])
for i in xrange(num_hosts):
host_name = hosts[i].host
host_racks = host_racks_map.get(host_name, set([]))
if solver_utils.instance_uuids_overlap(hosts[i], affinity_uuids):
affinity_racks = affinity_racks.union(host_racks)
affinity_hosts.add(host_name)
for i in xrange(num_hosts):
host_name = hosts[i].host
host_racks = host_racks_map.get(host_name, set([]))
if host_name in affinity_hosts:
LOG.debug(_("%(host)s passed same-rack check."),
{'host': host_name})
continue
elif (len(host_racks) == 0) or any(
[rack not in affinity_racks for rack in host_racks]):
constraint_matrix[i] = [False for j in xrange(num_instances)]
else:
LOG.debug(_("%(host)s passed same-rack check."),
{'host': host_name})
return constraint_matrix
def get_constraint_matrix(self, hosts, filter_properties):
num_hosts = len(hosts)
num_instances = filter_properties.get('num_instances')
constraint_matrix = [[True for j in xrange(num_instances)]
for i in xrange(num_hosts)]
scheduler_hints = filter_properties.get('scheduler_hints') or {}
affinity_uuids = scheduler_hints.get('same_rack', [])
if not affinity_uuids:
return constraint_matrix
if isinstance(affinity_uuids, six.string_types):
affinity_uuids = [affinity_uuids]
host_racks_map = solver_utils.get_host_racks_map(hosts)
affinity_racks = set([])
affinity_hosts = set([])
for i in xrange(num_hosts):
host_name = hosts[i].host
host_racks = host_racks_map.get(host_name, set([]))
if solver_utils.instance_uuids_overlap(hosts[i], affinity_uuids):
affinity_racks = affinity_racks.union(host_racks)
affinity_hosts.add(host_name)
for i in xrange(num_hosts):
host_name = hosts[i].host
host_racks = host_racks_map.get(host_name, set([]))
if host_name in affinity_hosts:
LOG.debug(_("%(host)s passed same-rack check."),
{'host': host_name})
continue
elif (len(host_racks) == 0) or any([rack not in affinity_racks
for rack in host_racks]):
constraint_matrix[i] = [False for j in xrange(num_instances)]
else:
LOG.debug(_("%(host)s passed same-rack check."),
{'host': host_name})
return constraint_matrix
def get_extended_cost_matrix(self, hosts, filter_properties):
num_hosts = len(hosts)
num_instances = filter_properties.get('num_instances')
multiplier = self.cost_multiplier()
if multiplier == 0:
extended_cost_matrix = [[0 for j in xrange(num_instances + 1)]
for i in xrange(num_hosts)]
return extended_cost_matrix
scheduler_hints = filter_properties.get('scheduler_hints') or {}
affinity_uuids = scheduler_hints.get('soft_different_host', [])
if affinity_uuids == '':
extended_cost_matrix = [[
float(j) / multiplier for j in xrange(num_instances + 1)
] for i in xrange(num_hosts)]
LOG.debug(_('No instance specified for AntiAffinityCost.'))
return extended_cost_matrix
if isinstance(affinity_uuids, six.string_types):
affinity_uuids = [affinity_uuids]
if affinity_uuids:
extended_cost_matrix = [[
float(j) / multiplier for j in xrange(num_instances + 1)
] for i in xrange(num_hosts)]
for i in xrange(num_hosts):
if solver_utils.instance_uuids_overlap(hosts[i],
affinity_uuids):
extended_cost_matrix[i] = [
1 + (float(j) / multiplier)
for j in xrange(num_instances + 1)
]
else:
extended_cost_matrix = [[0 for j in xrange(num_instances + 1)]
for i in xrange(num_hosts)]
return extended_cost_matrix
def get_extended_cost_matrix(self, hosts, filter_properties):
num_hosts = len(hosts)
num_instances = filter_properties.get('num_instances')
multiplier = self.cost_multiplier()
if multiplier == 0:
extended_cost_matrix = [[0 for j in xrange(num_instances + 1)]
for i in xrange(num_hosts)]
return extended_cost_matrix
scheduler_hints = filter_properties.get('scheduler_hints') or {}
affinity_uuids = scheduler_hints.get('soft_different_host', [])
if affinity_uuids == '':
extended_cost_matrix = [[float(j) / multiplier
for j in xrange(num_instances + 1)]
for i in xrange(num_hosts)]
LOG.debug(_('No instance specified for AntiAffinityCost.'))
return extended_cost_matrix
if isinstance(affinity_uuids, six.string_types):
affinity_uuids = [affinity_uuids]
if affinity_uuids:
extended_cost_matrix = [[float(j) / multiplier
for j in xrange(num_instances + 1)]
for i in xrange(num_hosts)]
for i in xrange(num_hosts):
if solver_utils.instance_uuids_overlap(hosts[i],
affinity_uuids):
extended_cost_matrix[i] = [1 + (float(j) / multiplier)
for j in xrange(num_instances + 1)]
else:
extended_cost_matrix = [[0 for j in xrange(num_instances + 1)]
for i in xrange(num_hosts)]
return extended_cost_matrix
