def test_inspect_vnic_rates(self):
# construct test data
test_vm_mobj = mock.MagicMock()
test_vm_mobj.value = "vm-21"
vnic1 = "vnic-1"
vnic2 = "vnic-2"
counter_name_to_id_map = {
vsphere_inspector.VC_NETWORK_RX_COUNTER: 1,
vsphere_inspector.VC_NETWORK_TX_COUNTER: 2
}
counter_id_to_stats_map = {
1: {
vnic1: 1,
vnic2: 3
},
2: {
vnic1: 2,
vnic2: 4
},
}
def get_counter_id_side_effect(counter_full_name):
return counter_name_to_id_map[counter_full_name]
def query_stat_side_effect(vm_mobj, counter_id, duration):
# assert inputs
self.assertEqual(test_vm_mobj.value, vm_mobj.value)
self.assertIn(counter_id, counter_id_to_stats_map)
return counter_id_to_stats_map[counter_id]
self._inspector._get_vm_mobj_not_power_off_or_raise = mock.MagicMock()
self._inspector._get_vm_mobj_not_power_off_or_raise.return_value = (
test_vm_mobj)
# configure vsphere operations mock with the test data
ops_mock = self._inspector._ops
ops_mock.get_perf_counter_id.side_effect = get_counter_id_side_effect
ops_mock.query_vm_device_stats.side_effect = query_stat_side_effect
result = self._inspector.inspect_vnic_rates(mock.MagicMock())
# validate result
expected_stats = {
vnic1: virt_inspector.InterfaceRateStats(1024, 2048),
vnic2: virt_inspector.InterfaceRateStats(3072, 4096)
}
for vnic, rates_info in result:
self.assertEqual(expected_stats[vnic.name], rates_info)
def inspect_vnic_rates(self, instance, duration):
vm_mobj = self._get_vm_mobj_not_power_off_or_raise(instance)
vnic_stats = {}
vnic_ids = set()
for net_counter in (VC_NETWORK_RX_COUNTER, VC_NETWORK_TX_COUNTER):
net_counter_id = self._ops.get_perf_counter_id(net_counter)
vnic_id_to_stats_map = self._ops.query_vm_device_stats(
vm_mobj, net_counter_id, duration)
# The sample for this map is: {4000: 0.0, vmnic5: 0.0, vmnic4: 0.0,
# vmnic3: 0.0, vmnic2: 0.0, vmnic1: 0.0, vmnic0: 0.0}
# "4000" is the virtual nic which we need.
# And these "vmnic*" are phynical nics in the host, so we remove it
vnic_id_to_stats_map = {k: v for (k, v)
in vnic_id_to_stats_map.items()
if not k.startswith('vmnic')}
vnic_stats[net_counter] = vnic_id_to_stats_map
vnic_ids.update(six.iterkeys(vnic_id_to_stats_map))
# Stats provided from vSphere are in KB/s, converting it to B/s.
for vnic_id in sorted(vnic_ids):
rx_bytes_rate = (vnic_stats[VC_NETWORK_RX_COUNTER]
.get(vnic_id, 0) * units.Ki)
tx_bytes_rate = (vnic_stats[VC_NETWORK_TX_COUNTER]
.get(vnic_id, 0) * units.Ki)
yield virt_inspector.InterfaceRateStats(
name=vnic_id,
mac=None,
fref=None,
parameters=None,
rx_bytes_rate=rx_bytes_rate,
tx_bytes_rate=tx_bytes_rate)
def inspect_vnic_rates(self, instance, duration=None):
vm_moid = self._ops.get_vm_moid(instance.id)
if not vm_moid:
raise virt_inspector.InstanceNotFoundException(
_('VM %s not found in VMware Vsphere') % instance.id)
vnic_stats = {}
vnic_ids = set()
for net_counter in (VC_NETWORK_RX_COUNTER, VC_NETWORK_TX_COUNTER):
net_counter_id = self._ops.get_perf_counter_id(net_counter)
vnic_id_to_stats_map = self._ops.query_vm_device_stats(
vm_moid, net_counter_id, duration)
vnic_stats[net_counter] = vnic_id_to_stats_map
vnic_ids.update(vnic_id_to_stats_map.iterkeys())
# Stats provided from vSphere are in KB/s, converting it to B/s.
for vnic_id in vnic_ids:
rx_bytes_rate = (
vnic_stats[VC_NETWORK_RX_COUNTER].get(vnic_id, 0) * units.Ki)
tx_bytes_rate = (
vnic_stats[VC_NETWORK_TX_COUNTER].get(vnic_id, 0) * units.Ki)
stats = virt_inspector.InterfaceRateStats(rx_bytes_rate,
tx_bytes_rate)
interface = virt_inspector.Interface(name=vnic_id,
mac=None,
fref=None,
parameters=None)
yield (interface, stats)
def setUp(self):
super(TestNetRatesPollster, self).setUp()
self.vnic0 = virt_inspector.InterfaceRateStats(
name='vnet0',
fref='fa163e71ec6e',
mac='fa:16:3e:71:ec:6d',
parameters=dict(ip='10.0.0.2',
projmask='255.255.255.0',
projnet='proj1',
dhcp_server='10.0.0.1'),
rx_bytes_rate=1,
tx_bytes_rate=2)
self.vnic1 = virt_inspector.InterfaceRateStats(
name='vnet1',
fref='fa163e71ec6f',
mac='fa:16:3e:71:ec:6e',
parameters=dict(ip='192.168.0.3',
projmask='255.255.255.0',
projnet='proj2',
dhcp_server='10.0.0.2'),
rx_bytes_rate=3,
tx_bytes_rate=4)
self.vnic2 = virt_inspector.InterfaceRateStats(
name='vnet2',
fref=None,
mac='fa:18:4e:72:fc:7e',
parameters=dict(ip='192.168.0.4',
projmask='255.255.255.0',
projnet='proj3',
dhcp_server='10.0.0.3'),
rx_bytes_rate=5,
tx_bytes_rate=6)
vnics = [
self.vnic0,
self.vnic1,
self.vnic2,
]
self.inspector.inspect_vnic_rates = mock.Mock(return_value=vnics)
def inspect_vnic_rates(self, instance, duration=None):
instance_name = util.instance_name(instance)
vm_ref = self._lookup_by_name(instance_name)
vif_refs = self._call_xenapi("VM.get_VIFs", vm_ref)
if vif_refs:
for vif_ref in vif_refs:
vif_rec = self._call_xenapi("VIF.get_record", vif_ref)
vif_metrics_ref = self._call_xenapi("VIF.get_metrics", vif_ref)
vif_metrics_rec = self._call_xenapi("VIF_metrics.get_record",
vif_metrics_ref)
interface = virt_inspector.Interface(name=vif_rec['uuid'],
mac=vif_rec['MAC'],
fref=None,
parameters=None)
rx_rate = float(vif_metrics_rec['io_read_kbs']) * units.Ki
tx_rate = float(vif_metrics_rec['io_write_kbs']) * units.Ki
stats = virt_inspector.InterfaceRateStats(rx_rate, tx_rate)
yield (interface, stats)
def inspect_vnic_rates(self, instance, duration):
instance_name = util.instance_name(instance)
vm_ref = self._lookup_by_name(instance_name)
vif_refs = self.session.VM.get_VIFs(vm_ref)
for vif_ref in vif_refs:
vif_rec = self.session.VIF.get_record(vif_ref)
rx_rate = float(
self.session.VM.query_data_source(
vm_ref, "vif_%s_rx" % vif_rec['device']))
tx_rate = float(
self.session.VM.query_data_source(
vm_ref, "vif_%s_tx" % vif_rec['device']))
yield virt_inspector.InterfaceRateStats(name=vif_rec['uuid'],
mac=vif_rec['MAC'],
fref=None,
parameters=None,
rx_bytes_rate=rx_rate,
tx_bytes_rate=tx_rate)
def inspect_vnic_rates(self, instance, duration=None):
instance_name = util.instance_name(instance)
vm_ref = self._lookup_by_name(instance_name)
vif_refs = self._call_xenapi("VM.get_VIFs", vm_ref)
if vif_refs:
for vif_ref in vif_refs:
vif_rec = self._call_xenapi("VIF.get_record", vif_ref)
rx_rate = float(
self._call_xenapi("VM.query_data_source", vm_ref,
"vif_%s_rx" % vif_rec['device']))
tx_rate = float(
self._call_xenapi("VM.query_data_source", vm_ref,
"vif_%s_tx" % vif_rec['device']))
interface = virt_inspector.Interface(name=vif_rec['uuid'],
mac=vif_rec['MAC'],
fref=None,
parameters=None)
stats = virt_inspector.InterfaceRateStats(rx_rate, tx_rate)
yield (interface, stats)
def inspect_vnic_rates(self, instance, duration):
"""Inspect the vNIC rate statistics for an instance.
:param instance: the target instance
:param duration: the last 'n' seconds, over which the value should be
inspected
The PowerVM implementation does not make use of the duration
field.
:return: for each vNIC, the rate of bytes & packets
received and transmitted
"""
# Get the current and previous sample. Delta is performed between
# these two.
uuid = self._puuid(instance)
cur_date, cur_metric = self.vm_metrics.get_latest_metric(uuid)
prev_date, prev_metric = self.vm_metrics.get_previous_metric(uuid)
# If the current is none, then the instance can not be found in the
# sample and an error should be raised.
if cur_metric is None:
raise virt_inspector.InstanceNotFoundException(
_('VM %s not found in PowerVM Metrics Sample.') %
instance.name)
# If there isn't network information, this is because the Virtual
# I/O Metrics were turned off. Have to pass through this method.
if (cur_metric.network is None or prev_metric is None
or prev_metric.network is None):
return
# Get the network interfaces. A 'cna' is a Client VM's Network Adapter
client_cnas = self._get_cnas(uuid)
def find_prev_net(metric_cna):
"""Finds the metric vNIC from the previous sample's vNICs."""
# If no previous, return None
if prev_metric is None or prev_metric.network is None:
return None
for prev_cna in prev_metric.network.cnas:
if prev_cna.physical_location == metric_cna.physical_location:
return prev_cna
# Couldn't find a previous. Maybe the interface was recently
# added to the instance? Return None
return None
# Need to determine the time delta between the samples. This is
# usually 30 seconds from the API, but the metrics will be specific.
date_delta_num = float((cur_date - prev_date).seconds)
for metric_cna in cur_metric.network.cnas:
# Get the mac, but if it isn't found, then move to the next. Might
# have been removed since the last sample.
mac = self.mac_for_metric_cna(metric_cna, client_cnas)
if mac is None:
continue
# Note that here, the previous may be none. That simply indicates
# that the adapter was dynamically added to the VM before the
# previous collection. Not the migration scenario above.
# In this case, we can default the base to 0.
prev = find_prev_net(metric_cna)
rx_bytes_diff = (metric_cna.received_bytes -
(0 if prev is None else prev.received_bytes))
tx_bytes_diff = (metric_cna.sent_bytes -
(0 if prev is None else prev.sent_bytes))
# Stats are the difference in the bytes, divided by the difference
# in time between the two samples.
rx_rate = float(rx_bytes_diff) / float(date_delta_num)
tx_rate = float(tx_bytes_diff) / float(date_delta_num)
# The name will be the location code. MAC is identified from
# above. Others appear libvirt specific.
yield virt_inspector.InterfaceRateStats(
name=metric_cna.physical_location,
mac=mac,
fref=None,
parameters=None,
rx_bytes_rate=rx_rate,
tx_bytes_rate=tx_rate)
