def min_sd(self, context, **kwargs): compute_nodes = kwargs.get('nodes') instances = [] for node in compute_nodes: node_instances = db.get_instances_stat(context, node['hypervisor_hostname']) instances.extend(node_instances) host_loads = lb_utils.fill_compute_stats(instances, compute_nodes) LOG.debug(_(host_loads)) vm_host_map = [] for instance in instances: for node in compute_nodes: h_hostname = node['hypervisor_hostname'] # Source host shouldn't be use. if instance.instance['host'] != h_hostname: sd = self._simulate_migration(instance, node, host_loads, compute_nodes) vm_host_map.append({ 'host': h_hostname, 'vm': instance['instance_uuid'], 'sd': sd }) vm_host_map = sorted(vm_host_map, key=lambda x: x['sd']['total_sd']) LOG.debug(_(vm_host_map)) for vm_host in vm_host_map: instance = filter(lambda x: x['instance_uuid'] == vm_host['vm'], instances)[0] instance_resources = lb_utils.get_instance_resources(instance) if instance_resources: filter_instance = { 'uuid': instance['instance_uuid'], 'resources': instance_resources } filtered = self.filter_hosts(context, filter_instance, compute_nodes, host=vm_host['host']) if not filtered[0]: continue self.migrate(context, instance['instance_uuid'], vm_host['host']) return
def _choose_instance_to_migrate(self, instances, extra_info=None): instances_params = [] for i in instances: instance_resources = lb_utils.get_instance_resources(i) if instance_resources: instances_params.append(instance_resources) LOG.debug(_(instances_params)) normalized_instances = lb_utils.normalize_params(instances_params) LOG.info(_(normalized_instances)) if extra_info.get('cpu_overload'): normalized_instances = filter(lambda x: x['memory'] == 0, normalized_instances) extra_info['k_cpu'] = -1 weighted_instances = self._weight_instances(normalized_instances, extra_info) LOG.info(_(weighted_instances)) for chosen_instance in weighted_instances: chosen_instance['resources'] = filter( lambda x: x['uuid'] == chosen_instance['uuid'], instances_params)[0] yield chosen_instance
def _choose_instance_to_migrate(self, instances, extra_info=None): instances_params = [] for i in instances: instance_resources = lb_utils.get_instance_resources(i) if instance_resources: instances_params.append(instance_resources) LOG.debug(_(instances_params)) normalized_instances = lb_utils.normalize_params(instances_params) LOG.info(_(normalized_instances)) if extra_info.get('cpu_overload'): normalized_instances = filter(lambda x: x['memory'] == 0, normalized_instances) extra_info['k_cpu'] = -1 weighted_instances = self._weight_instances(normalized_instances, extra_info) LOG.info(_(weighted_instances)) for chosen_instance in weighted_instances: chosen_instance['resources'] = filter( lambda x: x['uuid'] == chosen_instance['uuid'], instances_params)[0] yield chosen_instance
def min_sd(self, context, **kwargs): compute_nodes = kwargs.get('nodes') instances = [] for node in compute_nodes: node_instances = db.get_instances_stat( context, node['hypervisor_hostname']) instances.extend(node_instances) host_loads = lb_utils.fill_compute_stats(instances, compute_nodes) LOG.debug(_(host_loads)) vm_host_map = [] for instance in instances: for node in compute_nodes: h_hostname = node['hypervisor_hostname'] # Source host shouldn't be use. if instance.instance['host'] != h_hostname: sd = self._simulate_migration(instance, node, host_loads, compute_nodes) vm_host_map.append({'host': h_hostname, 'vm': instance['instance_uuid'], 'sd': sd}) vm_host_map = sorted(vm_host_map, key=lambda x: x['sd']['total_sd']) LOG.debug(_(vm_host_map)) for vm_host in vm_host_map: instance = filter(lambda x: x['instance_uuid'] == vm_host['vm'], instances)[0] instance_resources = lb_utils.get_instance_resources(instance) if instance_resources: filter_instance = {'uuid': instance['instance_uuid'], 'resources': instance_resources} filtered = self.filter_hosts(context, filter_instance, compute_nodes, host=vm_host['host']) if not filtered[0]: continue self.migrate(context, instance['instance_uuid'], vm_host['host']) return