def _soft_delete_removed_goals(self):
removed_goals = [
g for g in self.available_goals
if g.name not in self.discovered_map['goals']]
for removed_goal in removed_goals:
removed_goal.soft_delete()
filters = {"goal_id": removed_goal.id}
invalid_ats = objects.AuditTemplate.list(self.ctx, filters=filters)
for at in invalid_ats:
LOG.warning(
_LW("Audit Template '%(audit_template)s' references a "
"goal that does not exist"), audit_template=at.uuid)
stale_audits = objects.Audit.list(
self.ctx, filters=filters, eager=True)
for audit in stale_audits:
LOG.warning(
_LW("Audit '%(audit)s' references a "
"goal that does not exist"), audit=audit.uuid)
if audit.id not in self.stale_audits_map:
audit.state = objects.audit.State.CANCELLED
self.stale_audits_map[audit.id] = audit
else:
self.stale_audits_map[
audit.id].state = objects.audit.State.CANCELLED
def do_execute(self):
"""Strategy execution phase
This phase is where you should put the main logic of your strategy.
"""
self.threshold = self.input_parameters.threshold
self._period = self.input_parameters.period
source_nodes, target_nodes, avg_workload, workload_cache = (
self.group_hosts_by_cpu_util())
if not source_nodes:
LOG.debug("No hosts require optimization")
return self.solution
if not target_nodes:
LOG.warning(
_LW("No hosts current have CPU utilization under %s "
"percent, therefore there are no possible target "
"hosts for any migration"), self.threshold)
return self.solution
# choose the server with largest cpu_util
source_nodes = sorted(source_nodes,
reverse=True,
key=lambda x: (x[self.METER_NAME]))
instance_to_migrate = self.choose_instance_to_migrate(
source_nodes, avg_workload, workload_cache)
if not instance_to_migrate:
return self.solution
source_node, instance_src = instance_to_migrate
# find the hosts that have enough resource for the VM to be migrated
destination_hosts = self.filter_destination_hosts(
target_nodes, instance_src, avg_workload, workload_cache)
# sort the filtered result by workload
# pick up the lowest one as dest server
if not destination_hosts:
# for instance.
LOG.warning(
_LW("No proper target host could be found, it might "
"be because of there's no enough CPU/Memory/DISK"))
return self.solution
destination_hosts = sorted(destination_hosts,
key=lambda x: (x["cpu_util"]))
# always use the host with lowerest CPU utilization
mig_destination_node = destination_hosts[0]['node']
# generate solution to migrate the instance to the dest server,
if self.compute_model.migrate_instance(instance_src, source_node,
mig_destination_node):
parameters = {
'migration_type': 'live',
'source_node': source_node.uuid,
'destination_node': mig_destination_node.uuid
}
self.solution.add_action(action_type=self.MIGRATION,
resource_id=instance_src.uuid,
input_parameters=parameters)
def do_execute(self):
"""Strategy execution phase
This phase is where you should put the main logic of your strategy.
"""
self.threshold = self.input_parameters.threshold
self._period = self.input_parameters.period
source_nodes, target_nodes, avg_workload, workload_cache = (
self.group_hosts_by_cpu_util())
if not source_nodes:
LOG.debug("No hosts require optimization")
return self.solution
if not target_nodes:
LOG.warning(_LW("No hosts current have CPU utilization under %s "
"percent, therefore there are no possible target "
"hosts for any migration"),
self.threshold)
return self.solution
# choose the server with largest cpu_util
source_nodes = sorted(source_nodes,
reverse=True,
key=lambda x: (x[self.METER_NAME]))
instance_to_migrate = self.choose_instance_to_migrate(
source_nodes, avg_workload, workload_cache)
if not instance_to_migrate:
return self.solution
source_node, instance_src = instance_to_migrate
# find the hosts that have enough resource for the VM to be migrated
destination_hosts = self.filter_destination_hosts(
target_nodes, instance_src, avg_workload, workload_cache)
# sort the filtered result by workload
# pick up the lowest one as dest server
if not destination_hosts:
# for instance.
LOG.warning(_LW("No proper target host could be found, it might "
"be because of there's no enough CPU/Memory/DISK"))
return self.solution
destination_hosts = sorted(destination_hosts,
key=lambda x: (x["cpu_util"]))
# always use the host with lowerest CPU utilization
mig_destination_node = destination_hosts[0]['node']
# generate solution to migrate the instance to the dest server,
if self.compute_model.mapping.migrate_instance(
instance_src, source_node, mig_destination_node):
parameters = {'migration_type': 'live',
'source_node': source_node.uuid,
'destination_node': mig_destination_node.uuid}
self.solution.add_action(action_type=self.MIGRATION,
resource_id=instance_src.uuid,
input_parameters=parameters)
def do_execute(self):
"""Strategy execution phase
This phase is where you should put the main logic of your strategy.
"""
src_hypervisors, target_hypervisors, avg_workload, workload_cache = (
self.group_hosts_by_cpu_util())
if not src_hypervisors:
LOG.debug("No hosts require optimization")
return self.solution
if not target_hypervisors:
LOG.warning(_LW("No hosts current have CPU utilization under %s "
"percent, therefore there are no possible target "
"hosts for any migrations"),
self.threshold)
return self.solution
# choose the server with largest cpu_util
src_hypervisors = sorted(src_hypervisors,
reverse=True,
key=lambda x: (x[self.METER_NAME]))
vm_to_migrate = self.choose_vm_to_migrate(
src_hypervisors, avg_workload, workload_cache)
if not vm_to_migrate:
return self.solution
source_hypervisor, vm_src = vm_to_migrate
# find the hosts that have enough resource for the VM to be migrated
destination_hosts = self.filter_destination_hosts(
target_hypervisors, vm_src, avg_workload, workload_cache)
# sort the filtered result by workload
# pick up the lowest one as dest server
if not destination_hosts:
LOG.warning(_LW("No target host could be found; it might "
"be because there is not enough CPU, memory "
"or disk"))
return self.solution
destination_hosts = sorted(destination_hosts,
key=lambda x: (x["cpu_util"]))
# always use the host with lowerest CPU utilization
mig_dst_hypervisor = destination_hosts[0]['hv']
# generate solution to migrate the vm to the dest server
if self.model.get_mapping().migrate_vm(vm_src, source_hypervisor,
mig_dst_hypervisor):
parameters = {'migration_type': 'live',
'src_hypervisor': source_hypervisor.uuid,
'dst_hypervisor': mig_dst_hypervisor.uuid}
self.solution.add_action(action_type=self.MIGRATION,
resource_id=vm_src.uuid,
input_parameters=parameters)
def do_execute(self):
self.threshold_airflow = self.input_parameters.threshold_airflow
self.threshold_inlet_t = self.input_parameters.threshold_inlet_t
self.threshold_power = self.input_parameters.threshold_power
self._period = self.input_parameters.period
source_nodes, target_nodes = self.group_hosts_by_airflow()
if not source_nodes:
LOG.debug("No hosts require optimization")
return self.solution
if not target_nodes:
LOG.warning(
_LW("No hosts currently have airflow under %s, "
"therefore there are no possible target "
"hosts for any migration"), self.threshold_airflow)
return self.solution
# migrate the instance from server with largest airflow first
source_nodes = sorted(source_nodes,
reverse=True,
key=lambda x: (x["airflow"]))
instances_to_migrate = self.choose_instance_to_migrate(source_nodes)
if not instances_to_migrate:
return self.solution
source_node, instances_src = instances_to_migrate
# sort host with airflow
target_nodes = sorted(target_nodes, key=lambda x: (x["airflow"]))
# find the hosts that have enough resource
# for the instance to be migrated
destination_hosts = self.filter_destination_hosts(
target_nodes, instances_src)
if not destination_hosts:
LOG.warning(
_LW("No target host could be found; it might "
"be because there is not enough resources"))
return self.solution
# generate solution to migrate the instance to the dest server,
for info in destination_hosts:
instance = info['instance']
destination_node = info['node']
if self.compute_model.migrate_instance(instance, source_node,
destination_node):
parameters = {
'migration_type': 'live',
'source_node': source_node.uuid,
'destination_node': destination_node.uuid
}
self.solution.add_action(action_type=self.MIGRATION,
resource_id=instance.uuid,
input_parameters=parameters)
def _soft_delete_removed_strategies(self):
removed_strategies = [
s for s in self.available_strategies
if s.name not in self.discovered_map['strategies']]
for removed_strategy in removed_strategies:
removed_strategy.soft_delete()
filters = {"strategy_id": removed_strategy.id}
invalid_ats = objects.AuditTemplate.list(self.ctx, filters=filters)
for at in invalid_ats:
LOG.info(
_LI("Audit Template '%(audit_template)s' references a "
"strategy that does not exist"),
audit_template=at.uuid)
# In this case we can reset the strategy ID to None
# so the audit template can still achieve the same goal
# but with a different strategy
if at.id not in self.stale_audit_templates_map:
at.strategy_id = None
self.stale_audit_templates_map[at.id] = at
else:
self.stale_audit_templates_map[at.id].strategy_id = None
stale_audits = objects.Audit.list(
self.ctx, filters=filters, eager=True)
for audit in stale_audits:
LOG.warning(
_LW("Audit '%(audit)s' references a "
"strategy that does not exist"), audit=audit.uuid)
if audit.id not in self.stale_audits_map:
audit.state = objects.audit.State.CANCELLED
self.stale_audits_map[audit.id] = audit
else:
self.stale_audits_map[
audit.id].state = objects.audit.State.CANCELLED
stale_action_plans = objects.ActionPlan.list(
self.ctx, filters=filters, eager=True)
for action_plan in stale_action_plans:
LOG.warning(
_LW("Action Plan '%(action_plan)s' references a "
"strategy that does not exist"),
action_plan=action_plan.uuid)
if action_plan.id not in self.stale_action_plans_map:
action_plan.state = objects.action_plan.State.CANCELLED
self.stale_action_plans_map[action_plan.id] = action_plan
else:
self.stale_action_plans_map[
action_plan.id].state = (
objects.action_plan.State.CANCELLED)
def do_execute(self):
self.threshold_airflow = self.input_parameters.threshold_airflow
self.threshold_inlet_t = self.input_parameters.threshold_inlet_t
self.threshold_power = self.input_parameters.threshold_power
self._period = self.input_parameters.period
source_nodes, target_nodes = self.group_hosts_by_airflow()
if not source_nodes:
LOG.debug("No hosts require optimization")
return self.solution
if not target_nodes:
LOG.warning(_LW("No hosts currently have airflow under %s, "
"therefore there are no possible target "
"hosts for any migration"),
self.threshold_airflow)
return self.solution
# migrate the instance from server with largest airflow first
source_nodes = sorted(source_nodes,
reverse=True,
key=lambda x: (x["airflow"]))
instances_to_migrate = self.choose_instance_to_migrate(source_nodes)
if not instances_to_migrate:
return self.solution
source_node, instances_src = instances_to_migrate
# sort host with airflow
target_nodes = sorted(target_nodes, key=lambda x: (x["airflow"]))
# find the hosts that have enough resource
# for the instance to be migrated
destination_hosts = self.filter_destination_hosts(
target_nodes, instances_src)
if not destination_hosts:
LOG.warning(_LW("No target host could be found; it might "
"be because there is not enough resources"))
return self.solution
# generate solution to migrate the instance to the dest server,
for info in destination_hosts:
instance = info['instance']
destination_node = info['node']
if self.compute_model.mapping.migrate_instance(
instance, source_node, destination_node):
parameters = {'migration_type': 'live',
'source_node': source_node.uuid,
'destination_node': destination_node.uuid}
self.solution.add_action(action_type=self.MIGRATION,
resource_id=instance.uuid,
input_parameters=parameters)
def group_hosts_by_outlet_temp(self):
"""Group hosts based on outlet temp meters"""
hypervisors = self.model.get_all_hypervisors()
size_cluster = len(hypervisors)
if size_cluster == 0:
raise wexc.ClusterEmpty()
hosts_need_release = []
hosts_target = []
for hypervisor_id in hypervisors:
hypervisor = self.model.get_hypervisor_from_id(
hypervisor_id)
resource_id = hypervisor.uuid
outlet_temp = self.ceilometer.statistic_aggregation(
resource_id=resource_id,
meter_name=self._meter,
period="30",
aggregate='avg')
# some hosts may not have outlet temp meters, remove from target
if outlet_temp is None:
LOG.warning(_LW("%s: no outlet temp data"), resource_id)
continue
LOG.debug("%s: outlet temperature %f" % (resource_id, outlet_temp))
hvmap = {'hv': hypervisor, 'outlet_temp': outlet_temp}
if outlet_temp >= self.threshold:
# mark the hypervisor to release resources
hosts_need_release.append(hvmap)
else:
hosts_target.append(hvmap)
return hosts_need_release, hosts_target
def group_hosts_by_outlet_temp(self):
"""Group hosts based on outlet temp meters"""
nodes = self.compute_model.get_all_compute_nodes()
size_cluster = len(nodes)
if size_cluster == 0:
raise wexc.ClusterEmpty()
hosts_need_release = []
hosts_target = []
for node in nodes.values():
resource_id = node.uuid
outlet_temp = self.ceilometer.statistic_aggregation(
resource_id=resource_id,
meter_name=self._meter,
period="30",
aggregate='avg')
# some hosts may not have outlet temp meters, remove from target
if outlet_temp is None:
LOG.warning(_LW("%s: no outlet temp data"), resource_id)
continue
LOG.debug("%s: outlet temperature %f" % (resource_id, outlet_temp))
instance_data = {'node': node, 'outlet_temp': outlet_temp}
if outlet_temp >= self.threshold:
# mark the node to release resources
hosts_need_release.append(instance_data)
else:
hosts_target.append(instance_data)
return hosts_need_release, hosts_target
def group_hosts_by_airflow(self):
"""Group hosts based on airflow meters"""
nodes = self.compute_model.get_all_compute_nodes()
if not nodes:
raise wexc.ClusterEmpty()
overload_hosts = []
nonoverload_hosts = []
for node_id in nodes:
node = self.compute_model.get_node_from_id(
node_id)
resource_id = node.uuid
airflow = self.ceilometer.statistic_aggregation(
resource_id=resource_id,
meter_name=self.meter_name_airflow,
period=self._period,
aggregate='avg')
# some hosts may not have airflow meter, remove from target
if airflow is None:
LOG.warning(_LW("%s: no airflow data"), resource_id)
continue
LOG.debug("%s: airflow %f" % (resource_id, airflow))
nodemap = {'node': node, 'airflow': airflow}
if airflow >= self.threshold_airflow:
# mark the node to release resources
overload_hosts.append(nodemap)
else:
nonoverload_hosts.append(nodemap)
return overload_hosts, nonoverload_hosts
def group_hosts_by_outlet_temp(self):
"""Group hosts based on outlet temp meters"""
nodes = self.compute_model.get_all_compute_nodes()
size_cluster = len(nodes)
if size_cluster == 0:
raise wexc.ClusterEmpty()
hosts_need_release = []
hosts_target = []
for node_id in nodes:
node = self.compute_model.get_node_from_id(
node_id)
resource_id = node.uuid
outlet_temp = self.ceilometer.statistic_aggregation(
resource_id=resource_id,
meter_name=self._meter,
period="30",
aggregate='avg')
# some hosts may not have outlet temp meters, remove from target
if outlet_temp is None:
LOG.warning(_LW("%s: no outlet temp data"), resource_id)
continue
LOG.debug("%s: outlet temperature %f" % (resource_id, outlet_temp))
instance_data = {'node': node, 'outlet_temp': outlet_temp}
if outlet_temp >= self.threshold:
# mark the node to release resources
hosts_need_release.append(instance_data)
else:
hosts_target.append(instance_data)
return hosts_need_release, hosts_target
def schedule(self, context, audit_id, solution):
LOG.debug('Create an action plan for the audit uuid: %s ', audit_id)
action_plan = self._create_action_plan(context, audit_id)
actions = list(solution.actions)
to_schedule = []
for action in actions:
json_action = self.create_action(
action_plan_id=action_plan.id,
action_type=action.get('action_type'),
input_parameters=action.get('input_parameters'))
to_schedule.append(
(self.priorities[action.get('action_type')], json_action))
# scheduling
scheduled = sorted(to_schedule, key=lambda x: (x[0]))
if len(scheduled) == 0:
LOG.warning(_LW("The action plan is empty"))
action_plan.first_action_id = None
action_plan.save()
else:
# create the first action
parent_action = self._create_action(context, scheduled[0][1], None)
# remove first
scheduled.pop(0)
action_plan.first_action_id = parent_action.id
action_plan.save()
for s_action in scheduled:
current_action = self._create_action(context, s_action[1],
parent_action)
parent_action = current_action
return action_plan
def revert(self, *args, **kwargs):
LOG.warning(_LW("Revert action: %s"), self.name)
try:
self.action.revert()
except Exception as e:
LOG.exception(e)
LOG.critical(_LC("Oops! We need a disaster recover plan."))
def group_hosts_by_airflow(self):
"""Group hosts based on airflow meters"""
nodes = self.compute_model.get_all_compute_nodes()
if not nodes:
raise wexc.ClusterEmpty()
overload_hosts = []
nonoverload_hosts = []
for node_id in nodes:
node = self.compute_model.get_node_by_uuid(
node_id)
resource_id = node.uuid
airflow = self.ceilometer.statistic_aggregation(
resource_id=resource_id,
meter_name=self.meter_name_airflow,
period=self._period,
aggregate='avg')
# some hosts may not have airflow meter, remove from target
if airflow is None:
LOG.warning(_LW("%s: no airflow data"), resource_id)
continue
LOG.debug("%s: airflow %f" % (resource_id, airflow))
nodemap = {'node': node, 'airflow': airflow}
if airflow >= self.threshold_airflow:
# mark the node to release resources
overload_hosts.append(nodemap)
else:
nonoverload_hosts.append(nodemap)
return overload_hosts, nonoverload_hosts
def _set_status(self, name):
service = objects.Service.get_by_name(pecan.request.context, name)
last_heartbeat = (service.last_seen_up or service.updated_at
or service.created_at)
if isinstance(last_heartbeat, six.string_types):
# NOTE(russellb) If this service came in over rpc via
# conductor, then the timestamp will be a string and needs to be
# converted back to a datetime.
last_heartbeat = timeutils.parse_strtime(last_heartbeat)
else:
# Objects have proper UTC timezones, but the timeutils comparison
# below does not (and will fail)
last_heartbeat = last_heartbeat.replace(tzinfo=None)
elapsed = timeutils.delta_seconds(last_heartbeat, timeutils.utcnow())
is_up = abs(elapsed) <= CONF.service_down_time
if not is_up:
LOG.warning(
_LW('Seems service %(name)s on host %(host)s is down. '
'Last heartbeat was %(lhb)s.'
'Elapsed time is %(el)s'), {
'name': service.name,
'host': service.host,
'lhb': str(last_heartbeat),
'el': str(elapsed)
})
self._status = objects.service.ServiceStatus.FAILED
else:
self._status = objects.service.ServiceStatus.ACTIVE
def revert(self, *args, **kwargs):
LOG.warning(_LW("Revert action: %s"), self.name)
try:
# TODO(jed): do we need to update the states in case of failure?
self.action.revert()
except Exception as e:
LOG.exception(e)
LOG.critical(_LC("Oops! We need a disaster recover plan."))
def do_execute(self):
src_hypervisors, target_hypervisors = (
self.group_hosts_by_airflow())
if not src_hypervisors:
LOG.debug("No hosts require optimization")
return self.solution
if not target_hypervisors:
LOG.warning(_LW("No hosts current have airflow under %s "
", therefore there are no possible target "
"hosts for any migration"),
self.threshold_airflow)
return self.solution
# migrate the vm from server with largest airflow first
src_hypervisors = sorted(src_hypervisors,
reverse=True,
key=lambda x: (x["airflow"]))
vms_to_migrate = self.choose_vm_to_migrate(src_hypervisors)
if not vms_to_migrate:
return self.solution
source_hypervisor, vms_src = vms_to_migrate
# sort host with airflow
target_hypervisors = sorted(target_hypervisors,
key=lambda x: (x["airflow"]))
# find the hosts that have enough resource for the VM to be migrated
destination_hosts = self.filter_destination_hosts(target_hypervisors,
vms_src)
if not destination_hosts:
LOG.warning(_LW("No proper target host could be found, it might "
"be because of there's no enough resource"))
return self.solution
# generate solution to migrate the vm to the dest server,
for info in destination_hosts:
vm_src = info['vm']
mig_dst_hypervisor = info['hv']
if self.model.get_mapping().migrate_vm(vm_src,
source_hypervisor,
mig_dst_hypervisor):
parameters = {'migration_type': 'live',
'src_hypervisor': source_hypervisor.uuid,
'dst_hypervisor': mig_dst_hypervisor.uuid}
self.solution.add_action(action_type=self.MIGRATION,
resource_id=vm_src.uuid,
input_parameters=parameters)
def do_execute(self):
unsuccessful_migration = 0
for node_uuid, node in self.compute_model.get_all_compute_nodes(
).items():
node_instances = self.compute_model.mapping.get_node_instances(
node)
if node_instances:
if node.state == element.ServiceState.ENABLED:
self.add_change_service_state(
node_uuid, element.ServiceState.DISABLED.value)
scores = self.compute_score_of_nodes()
# Sort compute nodes by Score decreasing
sorted_scores = sorted(scores, reverse=True, key=lambda x: (x[1]))
LOG.debug("Compute node(s) BFD %s", sorted_scores)
# Get Node to be released
if len(scores) == 0:
LOG.warning(
_LW("The workloads of the compute nodes"
" of the cluster is zero"))
return
while sorted_scores and (
not self.migration_attempts
or self.migration_attempts >= unsuccessful_migration):
node_to_release, instance_score = self.node_and_instance_score(
sorted_scores)
# Sort instances by Score
sorted_instances = sorted(instance_score,
reverse=True,
key=lambda x: (x[1]))
# BFD: Best Fit Decrease
LOG.debug("Instance(s) BFD %s", sorted_instances)
migrations = self.calculate_num_migrations(sorted_instances,
node_to_release,
sorted_scores)
unsuccessful_migration = self.unsuccessful_migration_actualization(
migrations, unsuccessful_migration)
if not migrations:
# We don't have any possible migrations to perform on this node
# so we discard the node so we can try to migrate instances
# from the next one in the list
sorted_scores.pop()
infos = {
"released_compute_nodes_count": self.number_of_released_nodes,
"instance_migrations_count": self.number_of_migrations,
"efficacy": self.efficacy
}
LOG.debug(infos)
def _remove_instances_from_model(self, instances_to_remove, cluster_model):
for instance_uuid in instances_to_remove:
try:
node_name = (cluster_model.get_mapping().
get_node_by_instance_uuid(instance_uuid).uuid)
except KeyError:
LOG.warning(
_LW("The following instance %s cannot be found. "
"It might be deleted from CDM along with node"
" instance was hosted on."), instance_uuid)
continue
self._remove_instance(cluster_model, instance_uuid, node_name)
def do_execute(self):
# the migration plan will be triggered when the outlet temperature
# reaches threshold
self.threshold = self.input_parameters.threshold
LOG.debug("Initializing Outlet temperature strategy with threshold=%d",
self.threshold)
hosts_need_release, hosts_target = self.group_hosts_by_outlet_temp()
if len(hosts_need_release) == 0:
# TODO(zhenzanz): return something right if there's no hot servers
LOG.debug("No hosts require optimization")
return self.solution
if len(hosts_target) == 0:
LOG.warning(_LW("No hosts under outlet temp threshold found"))
return self.solution
# choose the server with highest outlet t
hosts_need_release = sorted(hosts_need_release,
reverse=True,
key=lambda x: (x["outlet_temp"]))
instance_to_migrate = self.choose_instance_to_migrate(
hosts_need_release)
# calculate the instance's cpu cores,memory,disk needs
if instance_to_migrate is None:
return self.solution
mig_source_node, instance_src = instance_to_migrate
dest_servers = self.filter_dest_servers(hosts_target, instance_src)
# sort the filtered result by outlet temp
# pick up the lowest one as dest server
if len(dest_servers) == 0:
# TODO(zhenzanz): maybe to warn that there's no resource
# for instance.
LOG.info(_LI("No proper target host could be found"))
return self.solution
dest_servers = sorted(dest_servers, key=lambda x: (x["outlet_temp"]))
# always use the host with lowerest outlet temperature
mig_destination_node = dest_servers[0]['node']
# generate solution to migrate the instance to the dest server,
if self.compute_model.migrate_instance(instance_src, mig_source_node,
mig_destination_node):
parameters = {
'migration_type': 'live',
'source_node': mig_source_node.uuid,
'destination_node': mig_destination_node.uuid
}
self.solution.add_action(action_type=self.MIGRATION,
resource_id=instance_src.uuid,
input_parameters=parameters)
def _soft_delete_removed_goals(self):
removed_goals = [
g for g in self.available_goals
if g.name not in self.discovered_map['goals']]
for removed_goal in removed_goals:
removed_goal.soft_delete()
filters = {"goal_id": removed_goal.id}
invalid_ats = objects.AuditTemplate.list(self.ctx, filters=filters)
for at in invalid_ats:
LOG.warning(
_LW("Audit Template '%(audit_template)s' references a "
"goal that does not exist"),
audit_template=at.uuid)
def remove_instances_from_model(self, instances_to_remove, cluster_model):
for instance_uuid in instances_to_remove:
try:
node_name = cluster_model.get_node_by_instance_uuid(
instance_uuid).uuid
except exception.ComputeResourceNotFound:
LOG.warning(
_LW("The following instance %s cannot be found. "
"It might be deleted from CDM along with node"
" instance was hosted on."), instance_uuid)
continue
self.remove_instance(
cluster_model,
cluster_model.get_instance_by_uuid(instance_uuid), node_name)
def do_execute(self):
# the migration plan will be triggered when the outlet temperature
# reaches threshold
self.threshold = self.input_parameters.threshold
LOG.debug("Initializing Outlet temperature strategy with threshold=%d",
self.threshold)
hosts_need_release, hosts_target = self.group_hosts_by_outlet_temp()
if len(hosts_need_release) == 0:
# TODO(zhenzanz): return something right if there's no hot servers
LOG.debug("No hosts require optimization")
return self.solution
if len(hosts_target) == 0:
LOG.warning(_LW("No hosts under outlet temp threshold found"))
return self.solution
# choose the server with highest outlet t
hosts_need_release = sorted(hosts_need_release,
reverse=True,
key=lambda x: (x["outlet_temp"]))
instance_to_migrate = self.choose_instance_to_migrate(
hosts_need_release)
# calculate the instance's cpu cores,memory,disk needs
if instance_to_migrate is None:
return self.solution
mig_source_node, instance_src = instance_to_migrate
dest_servers = self.filter_dest_servers(hosts_target, instance_src)
# sort the filtered result by outlet temp
# pick up the lowest one as dest server
if len(dest_servers) == 0:
# TODO(zhenzanz): maybe to warn that there's no resource
# for instance.
LOG.info(_LI("No proper target host could be found"))
return self.solution
dest_servers = sorted(dest_servers, key=lambda x: (x["outlet_temp"]))
# always use the host with lowerest outlet temperature
mig_destination_node = dest_servers[0]['node']
# generate solution to migrate the instance to the dest server,
if self.compute_model.mapping.migrate_instance(
instance_src, mig_source_node, mig_destination_node):
parameters = {'migration_type': 'live',
'source_node': mig_source_node.uuid,
'destination_node': mig_destination_node.uuid}
self.solution.add_action(action_type=self.MIGRATION,
resource_id=instance_src.uuid,
input_parameters=parameters)
def filter_destination_hosts(self, hosts, instances_to_migrate):
"""Find instance and host with sufficient available resources"""
cap_cores = self.compute_model.get_resource_by_uuid(
element.ResourceType.cpu_cores)
cap_disk = self.compute_model.get_resource_by_uuid(
element.ResourceType.disk)
cap_mem = self.compute_model.get_resource_by_uuid(
element.ResourceType.memory)
# large instance go first
instances_to_migrate = sorted(
instances_to_migrate, reverse=True,
key=lambda x: (cap_cores.get_capacity(x)))
# find hosts for instances
destination_hosts = []
for instance_to_migrate in instances_to_migrate:
required_cores = cap_cores.get_capacity(instance_to_migrate)
required_disk = cap_disk.get_capacity(instance_to_migrate)
required_mem = cap_mem.get_capacity(instance_to_migrate)
dest_migrate_info = {}
for nodemap in hosts:
host = nodemap['node']
if 'cores_used' not in nodemap:
# calculate the available resources
nodemap['cores_used'], nodemap['mem_used'],\
nodemap['disk_used'] = self.calculate_used_resource(
host, cap_cores, cap_mem, cap_disk)
cores_available = (cap_cores.get_capacity(host) -
nodemap['cores_used'])
disk_available = (cap_disk.get_capacity(host) -
nodemap['disk_used'])
mem_available = (
cap_mem.get_capacity(host) - nodemap['mem_used'])
if (cores_available >= required_cores and
disk_available >= required_disk and
mem_available >= required_mem):
dest_migrate_info['instance'] = instance_to_migrate
dest_migrate_info['node'] = host
nodemap['cores_used'] += required_cores
nodemap['mem_used'] += required_mem
nodemap['disk_used'] += required_disk
destination_hosts.append(dest_migrate_info)
break
# check if all instances have target hosts
if len(destination_hosts) != len(instances_to_migrate):
LOG.warning(_LW("Not all target hosts could be found; it might "
"be because there is not enough resource"))
return None
return destination_hosts
def filter_destination_hosts(self, hosts, instances_to_migrate):
"""Find instance and host with sufficient available resources"""
cap_cores = self.compute_model.get_resource_from_id(
element.ResourceType.cpu_cores)
cap_disk = self.compute_model.get_resource_from_id(
element.ResourceType.disk)
cap_mem = self.compute_model.get_resource_from_id(
element.ResourceType.memory)
# large instance go first
instances_to_migrate = sorted(
instances_to_migrate, reverse=True,
key=lambda x: (cap_cores.get_capacity(x)))
# find hosts for instances
destination_hosts = []
for instance_to_migrate in instances_to_migrate:
required_cores = cap_cores.get_capacity(instance_to_migrate)
required_disk = cap_disk.get_capacity(instance_to_migrate)
required_mem = cap_mem.get_capacity(instance_to_migrate)
dest_migrate_info = {}
for nodemap in hosts:
host = nodemap['node']
if 'cores_used' not in nodemap:
# calculate the available resources
nodemap['cores_used'], nodemap['mem_used'],\
nodemap['disk_used'] = self.calculate_used_resource(
host, cap_cores, cap_mem, cap_disk)
cores_available = (cap_cores.get_capacity(host) -
nodemap['cores_used'])
disk_available = (cap_disk.get_capacity(host) -
nodemap['disk_used'])
mem_available = (
cap_mem.get_capacity(host) - nodemap['mem_used'])
if (cores_available >= required_cores and
disk_available >= required_disk and
mem_available >= required_mem):
dest_migrate_info['instance'] = instance_to_migrate
dest_migrate_info['node'] = host
nodemap['cores_used'] += required_cores
nodemap['mem_used'] += required_mem
nodemap['disk_used'] += required_disk
destination_hosts.append(dest_migrate_info)
break
# check if all instances have target hosts
if len(destination_hosts) != len(instances_to_migrate):
LOG.warning(_LW("Not all target hosts could be found; it might "
"be because there is not enough resource"))
return None
return destination_hosts
def safe_rstrip(value, chars=None):
"""Removes trailing characters from a string if that does not make it empty
:param value: A string value that will be stripped.
:param chars: Characters to remove.
:return: Stripped value.
"""
if not isinstance(value, six.string_types):
LOG.warning(
_LW("Failed to remove trailing character. Returning original object."
"Supplied object is not a string: %s,"), value)
return value
return value.rstrip(chars) or value
def safe_rstrip(value, chars=None):
"""Removes trailing characters from a string if that does not make it empty
:param value: A string value that will be stripped.
:param chars: Characters to remove.
:return: Stripped value.
"""
if not isinstance(value, six.string_types):
LOG.warning(_LW(
"Failed to remove trailing character. Returning original object."
"Supplied object is not a string: %s,"), value)
return value
return value.rstrip(chars) or value
def filter_destination_hosts(self, hosts, vms_to_migrate):
'''return vm and host with sufficient available resources'''
cap_cores = self.model.get_resource_from_id(
resource.ResourceType.cpu_cores)
cap_disk = self.model.get_resource_from_id(resource.ResourceType.disk)
cap_mem = self.model.get_resource_from_id(
resource.ResourceType.memory)
# large vm go first
vms_to_migrate = sorted(vms_to_migrate, reverse=True,
key=lambda x: (cap_cores.get_capacity(x)))
# find hosts for VMs
destination_hosts = []
for vm_to_migrate in vms_to_migrate:
required_cores = cap_cores.get_capacity(vm_to_migrate)
required_disk = cap_disk.get_capacity(vm_to_migrate)
required_mem = cap_mem.get_capacity(vm_to_migrate)
dest_migrate_info = {}
for hvmap in hosts:
host = hvmap['hv']
if 'cores_used' not in hvmap:
# calculate the available resources
hvmap['cores_used'], hvmap['mem_used'],\
hvmap['disk_used'] = self.calculate_used_resource(
host, cap_cores, cap_mem, cap_disk)
cores_available = (cap_cores.get_capacity(host) -
hvmap['cores_used'])
disk_available = (cap_disk.get_capacity(host) -
hvmap['disk_used'])
mem_available = cap_mem.get_capacity(host) - hvmap['mem_used']
if (cores_available >= required_cores and
disk_available >= required_disk and
mem_available >= required_mem):
dest_migrate_info['vm'] = vm_to_migrate
dest_migrate_info['hv'] = host
hvmap['cores_used'] += required_cores
hvmap['mem_used'] += required_mem
hvmap['disk_used'] += required_disk
destination_hosts.append(dest_migrate_info)
break
# check if all vms have target hosts
if len(destination_hosts) != len(vms_to_migrate):
LOG.warning(_LW("Not all target hosts could be found, it might "
"be because of there's no enough resource"))
return None
return destination_hosts
def _configure(self):
try:
self.__transport = om.get_transport(CONF)
self.__notifier = self.build_notifier()
if len(self.__endpoints):
target = om.Target(
topic=self.topic_name,
# For compatibility, we can override it with 'host' opt
server=CONF.host or socket.getfqdn(),
version=self.__version,
)
self.__server = self.build_server(target)
else:
LOG.warning(_LW("No endpoint defined; can only publish events"))
except Exception as e:
LOG.exception(e)
LOG.error(_LE("Messaging configuration error"))
def _configure(self):
try:
self.__transport = om.get_transport(CONF)
self.__notifier = self.build_notifier()
if len(self.__endpoints):
target = om.Target(
topic=self.topic_name,
# For compatibility, we can override it with 'host' opt
server=CONF.host or socket.getfqdn(),
version=self.__version,
)
self.__server = self.build_server(target)
else:
LOG.warning(
_LW("No endpoint defined; can only publish events"))
except Exception as e:
LOG.exception(e)
LOG.error(_LE("Messaging configuration error"))
def schedule(self, context, audit_id, solution):
LOG.debug('Creating an action plan for the audit uuid: %s', audit_id)
action_plan = self.create_action_plan(context, audit_id, solution)
sorted_weighted_actions = self.get_sorted_actions_by_weight(
context, action_plan, solution)
action_graph = self.compute_action_graph(sorted_weighted_actions)
self._create_efficacy_indicators(
context, action_plan.id, solution.efficacy_indicators)
if len(action_graph.nodes()) == 0:
LOG.warning(_LW("The action plan is empty"))
action_plan.state = objects.action_plan.State.SUCCEEDED
action_plan.save()
self.create_scheduled_actions(action_plan, action_graph)
return action_plan
def unmap_from_id(self, node_uuid, vm_uuid):
"""Remove the instance (by id) from the hypervisor (by id)
:rtype : object
"""
try:
self.lock.acquire()
if str(node_uuid) in self._mapping_hypervisors:
self._mapping_hypervisors[str(node_uuid)].remove(str(vm_uuid))
# remove vm
self.mapping_vm.pop(vm_uuid)
else:
LOG.warning(_LW(
"trying to delete the virtual machine %(vm)s but it was "
"not found on hypervisor %(hyp)s"),
{'vm': vm_uuid, 'hyp': node_uuid})
finally:
self.lock.release()
def get_or_create_instance(self, instance_uuid, node_uuid=None):
try:
if node_uuid:
self.get_or_create_node(node_uuid)
except exception.ComputeNodeNotFound:
LOG.warning(
_LW("Could not find compute node %(node)s for "
"instance %(instance)s"),
dict(node=node_uuid, instance=instance_uuid))
try:
instance = self.cluster_data_model.get_instance_by_uuid(
instance_uuid)
except exception.InstanceNotFound:
# The instance didn't exist yet so we create a new instance object
LOG.debug("New instance created: %s", instance_uuid)
instance = element.Instance(uuid=instance_uuid)
self.cluster_data_model.add_instance(instance)
return instance
def unmap_from_id(self, node_uuid, instance_uuid):
"""Remove the instance (by id) from the node (by id)
:rtype : object
"""
try:
self.lock.acquire()
if str(node_uuid) in self.compute_node_mapping:
self.compute_node_mapping[str(node_uuid)].remove(
str(instance_uuid))
# remove instance
self.instance_mapping.pop(instance_uuid)
else:
LOG.warning(_LW(
"Trying to delete the instance %(instance)s but it was "
"not found on node %(node)s"),
{'instance': instance_uuid, 'node': node_uuid})
finally:
self.lock.release()
def schedule(self, context, audit_id, solution):
LOG.debug('Create an action plan for the audit uuid: %s ', audit_id)
priorities = self.config.weights
action_plan = self._create_action_plan(context, audit_id, solution)
actions = list(solution.actions)
to_schedule = []
for action in actions:
json_action = self.create_action(
action_plan_id=action_plan.id,
action_type=action.get('action_type'),
input_parameters=action.get('input_parameters'))
to_schedule.append((priorities[action.get('action_type')],
json_action))
self._create_efficacy_indicators(
context, action_plan.id, solution.efficacy_indicators)
# scheduling
scheduled = sorted(to_schedule, key=lambda x: (x[0]))
if len(scheduled) == 0:
LOG.warning(_LW("The action plan is empty"))
action_plan.first_action_id = None
action_plan.save()
else:
# create the first action
parent_action = self._create_action(context,
scheduled[0][1],
None)
# remove first
scheduled.pop(0)
action_plan.first_action_id = parent_action.id
action_plan.save()
for s_action in scheduled:
current_action = self._create_action(context, s_action[1],
parent_action)
parent_action = current_action
return action_plan
def unmap_by_uuid(self, node_uuid, instance_uuid):
"""Remove the instance (by id) from the node (by id)
:rtype : object
"""
try:
self.lock.acquire()
if str(node_uuid) in self.compute_node_mapping:
self.compute_node_mapping[str(node_uuid)].remove(
str(instance_uuid))
# remove instance
self.instance_mapping.pop(instance_uuid)
else:
LOG.warning(
_LW("Trying to delete the instance %(instance)s but it "
"was not found on node %(node)s") % {
'instance': instance_uuid,
'node': node_uuid
})
finally:
self.lock.release()
def filter_destination_hosts(self, hosts, instances_to_migrate):
"""Find instance and host with sufficient available resources"""
# large instances go first
instances_to_migrate = sorted(instances_to_migrate,
reverse=True,
key=lambda x: (x.vcpus))
# find hosts for instances
destination_hosts = []
for instance_to_migrate in instances_to_migrate:
required_cores = instance_to_migrate.vcpus
required_disk = instance_to_migrate.disk
required_mem = instance_to_migrate.memory
dest_migrate_info = {}
for nodemap in hosts:
host = nodemap['node']
if 'cores_used' not in nodemap:
# calculate the available resources
nodemap['cores_used'], nodemap['mem_used'],\
nodemap['disk_used'] = self.calculate_used_resource(
host)
cores_available = (host.vcpus - nodemap['cores_used'])
disk_available = (host.disk - nodemap['disk_used'])
mem_available = (host.memory - nodemap['mem_used'])
if (cores_available >= required_cores
and disk_available >= required_disk
and mem_available >= required_mem):
dest_migrate_info['instance'] = instance_to_migrate
dest_migrate_info['node'] = host
nodemap['cores_used'] += required_cores
nodemap['mem_used'] += required_mem
nodemap['disk_used'] += required_disk
destination_hosts.append(dest_migrate_info)
break
# check if all instances have target hosts
if len(destination_hosts) != len(instances_to_migrate):
LOG.warning(
_LW("Not all target hosts could be found; it might "
"be because there is not enough resource"))
return None
return destination_hosts
def get_instance_load(self, instance):
"""Gathering instance load through ceilometer statistic.
:param instance: instance for which statistic is gathered.
:return: dict
"""
LOG.debug('get_instance_load started')
instance_load = {'uuid': instance.uuid, 'vcpus': instance.vcpus}
for meter in self.metrics:
avg_meter = self.ceilometer.statistic_aggregation(
resource_id=instance.uuid,
meter_name=meter,
period=self.periods['instance'],
aggregate='min')
if avg_meter is None:
LOG.warning(
_LW("No values returned by %(resource_id)s "
"for %(metric_name)s") %
dict(resource_id=instance.uuid, metric_name=meter))
avg_meter = 0
if meter == 'cpu_util':
avg_meter /= float(100)
instance_load[meter] = avg_meter
return instance_load
def execute(self, original_model):
LOG.info(_LI("Initializing Sercon Consolidation"))
if original_model is None:
raise exception.ClusterStateNotDefined()
# todo(jed) clone model
current_model = original_model
self.efficacy = 100
unsuccessful_migration = 0
first_migration = True
size_cluster = len(current_model.get_all_hypervisors())
if size_cluster == 0:
raise exception.ClusterEmpty()
self.compute_attempts(size_cluster)
for hypervisor_id in current_model.get_all_hypervisors():
hypervisor = current_model.get_hypervisor_from_id(hypervisor_id)
count = current_model.get_mapping(). \
get_node_vms_from_id(hypervisor_id)
if len(count) == 0:
if hypervisor.state == hyper_state.HypervisorState.ONLINE:
self.add_change_service_state(
hypervisor_id,
hyper_state.HypervisorState.OFFLINE.value)
while self.get_allowed_migration_attempts() >= unsuccessful_migration:
if not first_migration:
self.efficacy = self.calculate_migration_efficacy()
if self.efficacy < float(self.target_efficacy):
break
first_migration = False
score = []
score = self.score_of_nodes(current_model, score)
''' sort compute nodes by Score decreasing ''' ''
sorted_score = sorted(score, reverse=True, key=lambda x: (x[1]))
LOG.debug("Hypervisor(s) BFD {0}".format(sorted_score))
''' get Node to be released '''
if len(score) == 0:
LOG.warning(
_LW("The workloads of the compute nodes"
" of the cluster is zero"))
break
node_to_release, vm_score = self.node_and_vm_score(
sorted_score, score, current_model)
''' sort VMs by Score '''
sorted_vms = sorted(vm_score, reverse=True, key=lambda x: (x[1]))
# BFD: Best Fit Decrease
LOG.debug("VM(s) BFD {0}".format(sorted_vms))
migrations = self.calculate_num_migrations(sorted_vms,
current_model,
node_to_release,
sorted_score)
unsuccessful_migration = self.unsuccessful_migration_actualization(
migrations, unsuccessful_migration)
infos = {
"number_of_migrations": self.number_of_migrations,
"number_of_nodes_released": self.number_of_released_nodes,
"efficacy": self.efficacy
}
LOG.debug(infos)
self.solution.model = current_model
self.solution.efficacy = self.efficacy
return self.solution
def execute(self, original_model):
LOG.info(_LI("Initializing Sercon Consolidation"))
if original_model is None:
raise exception.ClusterStateNotDefined()
# todo(jed) clone model
current_model = original_model
self.efficacy = 100
unsuccessful_migration = 0
first_migration = True
size_cluster = len(current_model.get_all_hypervisors())
if size_cluster == 0:
raise exception.ClusterEmpty()
self.compute_attempts(size_cluster)
for hypervisor_id in current_model.get_all_hypervisors():
hypervisor = current_model.get_hypervisor_from_id(hypervisor_id)
count = current_model.get_mapping(). \
get_node_vms_from_id(hypervisor_id)
if len(count) == 0:
if hypervisor.state == hyper_state.HypervisorState.ENABLED:
self.add_change_service_state(hypervisor_id,
hyper_state.HypervisorState.
DISABLED.value)
while self.get_allowed_migration_attempts() >= unsuccessful_migration:
if not first_migration:
self.efficacy = self.calculate_migration_efficacy()
if self.efficacy < float(self.target_efficacy):
break
first_migration = False
score = []
score = self.score_of_nodes(current_model, score)
''' sort compute nodes by Score decreasing '''''
sorted_score = sorted(score, reverse=True, key=lambda x: (x[1]))
LOG.debug("Hypervisor(s) BFD {0}".format(sorted_score))
''' get Node to be released '''
if len(score) == 0:
LOG.warning(_LW(
"The workloads of the compute nodes"
" of the cluster is zero"))
break
node_to_release, vm_score = self.node_and_vm_score(
sorted_score, score, current_model)
''' sort VMs by Score '''
sorted_vms = sorted(vm_score, reverse=True, key=lambda x: (x[1]))
# BFD: Best Fit Decrease
LOG.debug("VM(s) BFD {0}".format(sorted_vms))
migrations = self.calculate_num_migrations(
sorted_vms, current_model, node_to_release, sorted_score)
unsuccessful_migration = self.unsuccessful_migration_actualization(
migrations, unsuccessful_migration)
infos = {
"number_of_migrations": self.number_of_migrations,
"number_of_nodes_released": self.number_of_released_nodes,
"efficacy": self.efficacy
}
LOG.debug(infos)
self.solution.model = current_model
self.solution.efficacy = self.efficacy
return self.solution
def execute(self, origin_model):
LOG.info(_LI("Initializing Workload Balance Strategy"))
if origin_model is None:
raise wexc.ClusterStateNotDefined()
current_model = origin_model
src_hypervisors, target_hypervisors, avg_workload, workload_cache = (
self.group_hosts_by_cpu_util(current_model))
if not src_hypervisors:
LOG.debug("No hosts require optimization")
return self.solution
if not target_hypervisors:
LOG.warning(_LW("No hosts current have CPU utilization under %s "
"percent, therefore there are no possible target "
"hosts for any migration"),
self.threshold)
return self.solution
# choose the server with largest cpu_util
src_hypervisors = sorted(src_hypervisors,
reverse=True,
key=lambda x: (x[self.METER_NAME]))
vm_to_migrate = self.choose_vm_to_migrate(current_model,
src_hypervisors,
avg_workload,
workload_cache)
if not vm_to_migrate:
return self.solution
source_hypervisor, vm_src = vm_to_migrate
# find the hosts that have enough resource for the VM to be migrated
destination_hosts = self.filter_destination_hosts(current_model,
target_hypervisors,
vm_src,
avg_workload,
workload_cache)
# sort the filtered result by workload
# pick up the lowest one as dest server
if not destination_hosts:
# for instance.
LOG.warning(_LW("No proper target host could be found, it might "
"be because of there's no enough CPU/Memory/DISK"))
return self.solution
destination_hosts = sorted(destination_hosts,
key=lambda x: (x["cpu_util"]))
# always use the host with lowerest CPU utilization
mig_dst_hypervisor = destination_hosts[0]['hv']
# generate solution to migrate the vm to the dest server,
if current_model.get_mapping().migrate_vm(vm_src,
source_hypervisor,
mig_dst_hypervisor):
parameters = {'migration_type': 'live',
'src_hypervisor': source_hypervisor.uuid,
'dst_hypervisor': mig_dst_hypervisor.uuid}
self.solution.add_action(action_type=self.MIGRATION,
resource_id=vm_src.uuid,
input_parameters=parameters)
self.solution.model = current_model
return self.solution
def do_execute(self):
# todo(jed) clone model
self.efficacy = 100
unsuccessful_migration = 0
first_migration = True
size_cluster = len(self.model.get_all_hypervisors())
if size_cluster == 0:
raise exception.ClusterEmpty()
self.compute_attempts(size_cluster)
for hypervisor_id in self.model.get_all_hypervisors():
hypervisor = self.model.get_hypervisor_from_id(hypervisor_id)
count = self.model.get_mapping(). \
get_node_vms_from_id(hypervisor_id)
if len(count) == 0:
if hypervisor.state == hyper_state.HypervisorState.ENABLED:
self.add_change_service_state(hypervisor_id,
hyper_state.HypervisorState.
DISABLED.value)
while self.get_allowed_migration_attempts() >= unsuccessful_migration:
if not first_migration:
self.efficacy = self.calculate_migration_efficacy()
if self.efficacy < float(self.target_efficacy):
break
first_migration = False
score = []
score = self.score_of_nodes(score)
# Sort compute nodes by Score decreasing
sorted_score = sorted(score, reverse=True, key=lambda x: (x[1]))
LOG.debug("Hypervisor(s) BFD %s", sorted_score)
# Get Node to be released
if len(score) == 0:
LOG.warning(_LW(
"The workloads of the compute nodes"
" of the cluster is zero"))
break
node_to_release, vm_score = self.node_and_vm_score(
sorted_score, score)
# Sort VMs by Score
sorted_vms = sorted(vm_score, reverse=True, key=lambda x: (x[1]))
# BFD: Best Fit Decrease
LOG.debug("VM(s) BFD %s", sorted_vms)
migrations = self.calculate_num_migrations(
sorted_vms, node_to_release, sorted_score)
unsuccessful_migration = self.unsuccessful_migration_actualization(
migrations, unsuccessful_migration)
infos = {
"number_of_migrations": self.number_of_migrations,
"number_of_nodes_released": self.number_of_released_nodes,
"efficacy": self.efficacy
}
LOG.debug(infos)
def schedule(self, context, audit_id, solution):
LOG.debug('Creating an action plan for the audit uuid: %s', audit_id)
weights = self.config.weights
action_plan = self._create_action_plan(context, audit_id, solution)
actions = list(solution.actions)
to_schedule = []
for action in actions:
json_action = self.create_action(
action_plan_id=action_plan.id,
action_type=action.get('action_type'),
input_parameters=action.get('input_parameters'))
to_schedule.append(
(weights[action.get('action_type')], json_action))
self._create_efficacy_indicators(context, action_plan.id,
solution.efficacy_indicators)
# scheduling
scheduled = sorted(to_schedule,
key=lambda weight: (weight[0]),
reverse=True)
if len(scheduled) == 0:
LOG.warning(_LW("The action plan is empty"))
action_plan.state = objects.action_plan.State.SUCCEEDED
action_plan.save()
else:
resource_action_map = {}
scheduled_actions = [x[1] for x in scheduled]
for action in scheduled_actions:
a_type = action['action_type']
if a_type != 'turn_host_to_acpi_s3_state':
plugin_action = self.load_child_class(
action.get("action_type"))
if not plugin_action:
raise exception.UnsupportedActionType(
action_type=action.get("action_type"))
db_action = self._create_action(context, action)
parents = plugin_action.validate_parents(
resource_action_map, action)
if parents:
db_action.parents = parents
db_action.save()
# if we have an action that will make host unreachable, we need
# to complete all actions (resize and migration type)
# related to the host.
# Note(alexchadin): turn_host_to_acpi_s3_state doesn't
# actually exist. Placed code shows relations between
# action types.
# TODO(alexchadin): add turn_host_to_acpi_s3_state action type.
else:
host_to_acpi_s3 = action['input_parameters']['resource_id']
host_actions = resource_action_map.get(host_to_acpi_s3)
action_parents = []
if host_actions:
resize_actions = [
x[0] for x in host_actions if x[1] == 'resize'
]
migrate_actions = [
x[0] for x in host_actions if x[1] == 'migrate'
]
resize_migration_parents = [
x.parents for x in [
objects.Action.get_by_uuid(
context, resize_action)
for resize_action in resize_actions
]
]
# resize_migration_parents should be one level list
resize_migration_parents = [
parent for sublist in resize_migration_parents
for parent in sublist
]
action_parents.extend(
[uuid for uuid in resize_actions])
action_parents.extend([
uuid for uuid in migrate_actions
if uuid not in resize_migration_parents
])
db_action = self._create_action(context, action)
db_action.parents = action_parents
db_action.save()
return action_plan
def __init__(self,
user_id=None,
project_id=None,
is_admin=None,
roles=None,
timestamp=None,
request_id=None,
auth_token=None,
auth_url=None,
overwrite=True,
user_name=None,
project_name=None,
domain_name=None,
domain_id=None,
auth_token_info=None,
**kwargs):
"""Stores several additional request parameters:
:param domain_id: The ID of the domain.
:param domain_name: The name of the domain.
:param is_public_api: Specifies whether the request should be processed
without authentication.
"""
user = kwargs.pop('user', None)
tenant = kwargs.pop('tenant', None)
super(RequestContext, self).__init__(
auth_token=auth_token,
user=user_id or user,
tenant=project_id or tenant,
domain=kwargs.pop('domain', None) or domain_name or domain_id,
user_domain=kwargs.pop('user_domain', None),
project_domain=kwargs.pop('project_domain', None),
is_admin=is_admin,
read_only=kwargs.pop('read_only', False),
show_deleted=kwargs.pop('show_deleted', False),
request_id=request_id,
resource_uuid=kwargs.pop('resource_uuid', None),
is_admin_project=kwargs.pop('is_admin_project', True),
overwrite=overwrite,
roles=roles)
self.remote_address = kwargs.pop('remote_address', None)
self.instance_lock_checked = kwargs.pop('instance_lock_checked', None)
self.read_deleted = kwargs.pop('read_deleted', None)
self.service_catalog = kwargs.pop('service_catalog', None)
self.quota_class = kwargs.pop('quota_class', None)
# oslo_context's RequestContext.to_dict() generates this field, we can
# safely ignore this as we don't use it.
kwargs.pop('user_identity', None)
if kwargs:
LOG.warning(_LW('Arguments dropped when creating context: %s'),
str(kwargs))
# FIXME(dims): user_id and project_id duplicate information that is
# already present in the oslo_context's RequestContext. We need to
# get rid of them.
self.auth_url = auth_url
self.domain_name = domain_name
self.domain_id = domain_id
self.auth_token_info = auth_token_info
self.user_id = user_id or user
self.project_id = project_id
if not timestamp:
timestamp = timeutils.utcnow()
if isinstance(timestamp, six.string_types):
timestamp = timeutils.parse_isotime(timestamp)
self.timestamp = timestamp
self.user_name = user_name
self.project_name = project_name
self.is_admin = is_admin
