def indicate(self, context):
cpu_threshold = CONF.loadbalancer_standart_deviation.threshold_cpu
mem_threshold = CONF.loadbalancer_standart_deviation.threshold_memory
compute_nodes = db.get_compute_node_stats(context)
instances = []
# TODO: Make only one query that returns all instances placed on active
# hosts.
for node in compute_nodes:
node_instances = db.get_instances_stat(
context,
node['hypervisor_hostname'])
instances.extend(node_instances)
compute_stats = utils.fill_compute_stats(instances, compute_nodes)
host_loads = utils.calculate_host_loads(compute_nodes, compute_stats)
LOG.debug(_(host_loads))
ram_sd = utils.calculate_sd(host_loads, 'mem')
cpu_sd = utils.calculate_sd(host_loads, 'cpu')
if cpu_sd > cpu_threshold or ram_sd > mem_threshold:
extra_info = {'cpu_overload': False}
if cpu_sd > cpu_threshold:
overloaded_host = sorted(host_loads,
key=lambda x: host_loads[x]['cpu'],
reverse=True)[0]
extra_info['cpu_overload'] = True
else:
overloaded_host = sorted(host_loads,
key=lambda x: host_loads[x]['mem'],
reverse=True)[0]
host = filter(
lambda x:
x['hypervisor_hostname'] == overloaded_host, compute_nodes)[0]
LOG.debug(_(host))
return host, compute_nodes, extra_info
return [], [], {}
def indicate(self, context):
cpu_threshold = CONF.loadbalancer_standart_deviation.threshold_cpu
mem_threshold = CONF.loadbalancer_standart_deviation.threshold_memory
compute_nodes = db.get_compute_node_stats(context)
instances = []
# TODO: Make only one query that returns all instances placed on active
# hosts.
for node in compute_nodes:
node_instances = db.get_instances_stat(context,
node['hypervisor_hostname'])
instances.extend(node_instances)
compute_stats = utils.fill_compute_stats(instances, compute_nodes)
host_loads = utils.calculate_host_loads(compute_nodes, compute_stats)
LOG.debug(_(host_loads))
ram_sd = utils.calculate_sd(host_loads, 'mem')
cpu_sd = utils.calculate_sd(host_loads, 'cpu')
if cpu_sd > cpu_threshold or ram_sd > mem_threshold:
extra_info = {'cpu_overload': False}
if cpu_sd > cpu_threshold:
overloaded_host = sorted(host_loads,
key=lambda x: host_loads[x]['cpu'],
reverse=True)[0]
extra_info['cpu_overload'] = True
else:
overloaded_host = sorted(host_loads,
key=lambda x: host_loads[x]['mem'],
reverse=True)[0]
host = filter(
lambda x: x['hypervisor_hostname'] == overloaded_host,
compute_nodes)[0]
LOG.debug(_(host))
return host, compute_nodes, extra_info
return [], [], {}
def indicate(self, context):
compute_nodes = db.get_compute_node_stats(context)
cpu_td = CONF.loadbalancer_step_threshold.cpu_threshold
memory_td = CONF.loadbalancer_step_threshold.memory_threshold
LOG.debug(_(cpu_td))
LOG.debug(_(memory_td))
for node in compute_nodes:
cpu_used_percent = node['cpu_used_percent']
memory_used = node['memory_used']
memory_used_percent = round(
(float(memory_used) / float(node['memory_total'])) * 100.00, 0)
LOG.debug(_(cpu_used_percent))
LOG.debug(_(memory_used_percent))
if cpu_used_percent > cpu_td or memory_used_percent > memory_td:
return node, compute_nodes, {}
return [], [], {}
def indicate(self, context):
compute_nodes = db.get_compute_node_stats(context)
cpu_td = CONF.loadbalancer_step_threshold.cpu_threshold
memory_td = CONF.loadbalancer_step_threshold.memory_threshold
LOG.debug(_(cpu_td))
LOG.debug(_(memory_td))
for node in compute_nodes:
cpu_used_percent = node['cpu_used_percent']
memory_used = node['memory_used']
memory_used_percent = round(
(float(memory_used) / float(node['memory_total'])) * 100.00, 0
)
LOG.debug(_(cpu_used_percent))
LOG.debug(_(memory_used_percent))
if cpu_used_percent > cpu_td or memory_used_percent > memory_td:
return node, compute_nodes, {}
return [], [], {}
