def update_status(self):
"""Update the current state of the cluster."""
capacity, freespace = _get_ds_capacity_and_freespace(self._session,
self._cluster)
# Get cpu, memory stats from the cluster
stats = vm_util.get_stats_from_cluster(self._session, self._cluster)
about_info = self._session._call_method(vim_util, "get_about_info")
data = {}
data["vcpus"] = stats['cpu']['vcpus']
data["cpu_info"] = {"vendor": stats['cpu']['vendor'],
"model": stats['cpu']['model'],
"topology": {"cores": stats['cpu']['cores'],
"threads": stats['cpu']['vcpus']}}
data["disk_total"] = capacity / units.Gi
data["disk_available"] = freespace / units.Gi
data["disk_used"] = data["disk_total"] - data["disk_available"]
data["host_memory_total"] = stats['mem']['total']
data["host_memory_free"] = stats['mem']['free']
data["hypervisor_type"] = about_info.name
data["hypervisor_version"] = utils.convert_version_to_int(
str(about_info.version))
data["hypervisor_hostname"] = self._host_name
data["supported_instances"] = [('i686', 'vmware', 'hvm'),
('x86_64', 'vmware', 'hvm')]
self._stats = data
return data
def update_status(self):
"""Update the current state of the cluster."""
capacity, freespace = _get_ds_capacity_and_freespace(self._session,
self._cluster, self._datastore_regex)
# Get cpu, memory stats from the cluster
stats = vm_util.get_stats_from_cluster(self._session, self._cluster)
about_info = self._session._call_method(vim_util, "get_about_info")
data = {}
data["vcpus"] = stats['vcpus']
data["disk_total"] = capacity / units.Gi
data["disk_available"] = freespace / units.Gi
data["disk_used"] = data["disk_total"] - data["disk_available"]
data["host_memory_total"] = stats['mem']['total']
data["host_memory_free"] = stats['mem']['free']
data["hypervisor_type"] = about_info.name
data["hypervisor_version"] = utils.convert_version_to_int(
str(about_info.version))
data["hypervisor_hostname"] = self._host_name
data["supported_instances"] = [
(arch.I686, hv_type.VMWARE, vm_mode.HVM),
(arch.X86_64, hv_type.VMWARE, vm_mode.HVM)]
self._stats = data
return data
def update_status(self):
"""Update the current state of the cluster."""
capacity, freespace = _get_ds_capacity_and_freespace(self._session,
self._cluster)
# Get cpu, memory stats from the cluster
stats = vm_util.get_stats_from_cluster(self._session, self._cluster)
about_info = self._session._call_method(vim_util, "get_about_info")
data = {}
data["vcpus"] = stats['cpu']['vcpus']
data["cpu_info"] = {"vendor": stats['cpu']['vendor'],
"model": stats['cpu']['model'],
"topology": {"cores": stats['cpu']['cores'],
"threads": stats['cpu']['vcpus']}}
data["disk_total"] = capacity / units.Gi
data["disk_available"] = freespace / units.Gi
data["disk_used"] = data["disk_total"] - data["disk_available"]
data["host_memory_total"] = stats['mem']['total']
data["host_memory_free"] = stats['mem']['free']
data["hypervisor_type"] = about_info.name
data["hypervisor_version"] = utils.convert_version_to_int(
str(about_info.version))
data["hypervisor_hostname"] = self._host_name
data["supported_instances"] = [
(arch.I686, hvtype.VMWARE, vm_mode.HVM),
(arch.X86_64, hvtype.VMWARE, vm_mode.HVM)]
self._stats = data
return data
def update_status(self):
"""Update the current state of the cluster."""
# Get the datastore in the cluster
try:
ds = vm_util.get_datastore_ref_and_name(self._session,
self._cluster)
except exception.DatastoreNotFound:
ds = (None, None, 0, 0)
# Get cpu, memory stats from the cluster
stats = vm_util.get_stats_from_cluster(self._session, self._cluster)
about_info = self._session._call_method(vim_util, "get_about_info")
data = {}
data["vcpus"] = stats['cpu']['vcpus']
data["cpu_info"] = {"vendor": stats['cpu']['vendor'],
"model": stats['cpu']['model'],
"topology": {"cores": stats['cpu']['cores'],
"threads": stats['cpu']['vcpus']}}
data["disk_total"] = ds[2] / (1024 * 1024 * 1024)
data["disk_available"] = ds[3] / (1024 * 1024 * 1024)
data["disk_used"] = data["disk_total"] - data["disk_available"]
data["host_memory_total"] = stats['mem']['total']
data["host_memory_free"] = stats['mem']['free']
data["hypervisor_type"] = about_info.name
data["hypervisor_version"] = about_info.version
data["hypervisor_hostname"] = self._host_name
data["supported_instances"] = [('i686', 'vmware', 'hvm'),
('x86_64', 'vmware', 'hvm')]
self._stats = data
return data
def update_status(self):
"""Update the current state of the cluster."""
# Get cpu, memory stats, disk from the cluster
stats = vm_util.get_stats_from_cluster(self._session, self._cluster,
self._datastore_regex)
about_info = self._session._call_method(vim_util, "get_about_info")
data = {}
data["vcpus"] = stats['cpu']['vcpus']
data["cpu_info"] = {"vendor": stats['cpu']['vendor'],
"model": stats['cpu']['model'],
"topology": {"cores": stats['cpu']['cores'],
"threads": stats['cpu']['vcpus']}}
data["disk_total"] = stats['disk']['total']
data["disk_available"] = stats['disk']['free']
data["disk_used"] = data["disk_total"] - data["disk_available"]
data["host_memory_total"] = stats['mem']['total']
data["host_memory_free"] = stats['mem']['free']
data["hypervisor_type"] = about_info.name
data["hypervisor_version"] = utils.convert_version_to_int(
str(about_info.version))
data["hypervisor_hostname"] = self._host_name
data["supported_instances"] = [('i686', 'vmware', 'hvm'),
('x86_64', 'vmware', 'hvm')]
self._stats = data
return data
def update_status(self):
"""Update the current state of the cluster."""
# Get the datastore in the cluster
try:
ds = vm_util.get_datastore_ref_and_name(self._session, self._cluster)
except exception.DatastoreNotFound:
ds = (None, None, 0, 0)
# Get cpu, memory stats from the cluster
stats = vm_util.get_stats_from_cluster(self._session, self._cluster)
about_info = self._session._call_method(vim_util, "get_about_info")
data = {}
data["vcpus"] = stats["cpu"]["vcpus"]
data["cpu_info"] = {
"vendor": stats["cpu"]["vendor"],
"model": stats["cpu"]["model"],
"topology": {"cores": stats["cpu"]["cores"], "threads": stats["cpu"]["vcpus"]},
}
data["disk_total"] = ds[2] / units.Gi
data["disk_available"] = ds[3] / units.Gi
data["disk_used"] = data["disk_total"] - data["disk_available"]
data["host_memory_total"] = stats["mem"]["total"]
data["host_memory_free"] = stats["mem"]["free"]
data["hypervisor_type"] = about_info.name
data["hypervisor_version"] = utils.convert_version_to_int(str(about_info.version))
data["hypervisor_hostname"] = self._host_name
data["supported_instances"] = [("i686", "vmware", "hvm"), ("x86_64", "vmware", "hvm")]
self._stats = data
return data
def test_get_stats_from_cluster(self):
ManagedObjectRefs = [
fake.ManagedObjectReference("host1", "HostSystem"),
fake.ManagedObjectReference("host2", "HostSystem")
]
hosts = fake._convert_to_array_of_mor(ManagedObjectRefs)
respool = fake.ManagedObjectReference("resgroup-11", "ResourcePool")
prop_dict = {'host': hosts, 'resourcePool': respool}
hardware = fake.DataObject()
hardware.numCpuCores = 8
hardware.numCpuThreads = 16
hardware.vendor = "Intel"
hardware.cpuModel = "Intel(R) Xeon(R)"
runtime_host_1 = fake.DataObject()
runtime_host_1.connectionState = "connected"
runtime_host_2 = fake.DataObject()
runtime_host_2.connectionState = "disconnected"
prop_list_host_1 = [
fake.Prop(name="hardware_summary", val=hardware),
fake.Prop(name="runtime_summary", val=runtime_host_1)
]
prop_list_host_2 = [
fake.Prop(name="hardware_summary", val=hardware),
fake.Prop(name="runtime_summary", val=runtime_host_2)
]
fake_objects = fake.FakeRetrieveResult()
fake_objects.add_object(
fake.ObjectContent("prop_list_host1", prop_list_host_1))
fake_objects.add_object(
fake.ObjectContent("prop_list_host1", prop_list_host_2))
respool_resource_usage = fake.DataObject()
respool_resource_usage.maxUsage = 5368709120
respool_resource_usage.overallUsage = 2147483648
session = fake_session()
def fake_call_method(*args):
if "get_dynamic_properties" in args:
return prop_dict
elif "get_properties_for_a_collection_of_objects" in args:
return fake_objects
else:
return respool_resource_usage
with mock.patch.object(fake_session, '_call_method', fake_call_method):
result = vm_util.get_stats_from_cluster(session, "cluster1")
cpu_info = {}
mem_info = {}
cpu_info['vcpus'] = 16
cpu_info['cores'] = 8
cpu_info['vendor'] = ["Intel"]
cpu_info['model'] = ["Intel(R) Xeon(R)"]
mem_info['total'] = 5120
mem_info['free'] = 3072
expected_stats = {'cpu': cpu_info, 'mem': mem_info}
self.assertEqual(expected_stats, result)
def test_get_stats_from_cluster(self):
ManagedObjectRefs = [
fake.ManagedObjectReference("host1", "HostSystem"),
fake.ManagedObjectReference("host2", "HostSystem"),
]
hosts = fake._convert_to_array_of_mor(ManagedObjectRefs)
respool = fake.ManagedObjectReference("resgroup-11", "ResourcePool")
prop_dict = {"host": hosts, "resourcePool": respool}
hardware = fake.DataObject()
hardware.numCpuCores = 8
hardware.numCpuThreads = 16
hardware.vendor = "Intel"
hardware.cpuModel = "Intel(R) Xeon(R)"
runtime_host_1 = fake.DataObject()
runtime_host_1.connectionState = "connected"
runtime_host_2 = fake.DataObject()
runtime_host_2.connectionState = "disconnected"
prop_list_host_1 = [
fake.Prop(name="hardware_summary", val=hardware),
fake.Prop(name="runtime_summary", val=runtime_host_1),
]
prop_list_host_2 = [
fake.Prop(name="hardware_summary", val=hardware),
fake.Prop(name="runtime_summary", val=runtime_host_2),
]
fake_objects = fake.FakeRetrieveResult()
fake_objects.add_object(fake.ObjectContent("prop_list_host1", prop_list_host_1))
fake_objects.add_object(fake.ObjectContent("prop_list_host1", prop_list_host_2))
respool_resource_usage = fake.DataObject()
respool_resource_usage.maxUsage = 5368709120
respool_resource_usage.overallUsage = 2147483648
session = fake_session()
def fake_call_method(*args):
if "get_dynamic_properties" in args:
return prop_dict
elif "get_properties_for_a_collection_of_objects" in args:
return fake_objects
else:
return respool_resource_usage
with mock.patch.object(fake_session, "_call_method", fake_call_method):
result = vm_util.get_stats_from_cluster(session, "cluster1")
cpu_info = {}
mem_info = {}
cpu_info["vcpus"] = 16
cpu_info["cores"] = 8
cpu_info["vendor"] = ["Intel"]
cpu_info["model"] = ["Intel(R) Xeon(R)"]
mem_info["total"] = 5120
mem_info["free"] = 3072
expected_stats = {"cpu": cpu_info, "mem": mem_info}
self.assertEqual(expected_stats, result)
def update_status(self):
"""Update the current state of the cluster."""
data = {}
try:
capacity, freespace = _get_ds_capacity_and_freespace(
self._session, self._cluster, self._datastore_regex)
# Get cpu, memory stats from the cluster
stats = vm_util.get_stats_from_cluster(self._session,
self._cluster)
about_info = self._session._call_method(vim_util, "get_about_info")
except (vexc.VimConnectionException, vexc.VimAttributeException) as ex:
# VimAttributeException is thrown when vpxd service is down
LOG.warning(
_LW("Failed to connect with %(node)s. "
"Error: %(error)s"), {
'node': self._host_name,
'error': ex
})
self._set_host_enabled(False)
return data
data["vcpus"] = stats['vcpus']
data["disk_total"] = capacity / units.Gi
data["disk_available"] = freespace / units.Gi
data["disk_used"] = data["disk_total"] - data["disk_available"]
data["host_memory_total"] = stats['mem']['total']
data["host_memory_free"] = stats['mem']['free']
data["hypervisor_type"] = about_info.name
data["hypervisor_version"] = versionutils.convert_version_to_int(
str(about_info.version))
data["hypervisor_hostname"] = self._host_name
data["supported_instances"] = [
(obj_fields.Architecture.I686, obj_fields.HVType.VMWARE,
obj_fields.VMMode.HVM),
(obj_fields.Architecture.X86_64, obj_fields.HVType.VMWARE,
obj_fields.VMMode.HVM)
]
self._stats = data
if self._auto_service_disabled:
self._set_host_enabled(True)
return data
def update_status(self):
"""Update the current state of the cluster."""
data = {}
try:
capacity, freespace = _get_ds_capacity_and_freespace(self._session,
self._cluster, self._datastore_regex)
# Get cpu, memory stats from the cluster
stats = vm_util.get_stats_from_cluster(self._session,
self._cluster)
about_info = self._session._call_method(vim_util, "get_about_info")
except (vexc.VimConnectionException, vexc.VimAttributeException) as ex:
# VimAttributeException is thrown when vpxd service is down
LOG.warning(_LW("Failed to connect with %(node)s. "
"Error: %(error)s"),
{'node': self._host_name, 'error': ex})
self._set_host_enabled(False)
return data
data["vcpus"] = stats['vcpus']
data["disk_total"] = capacity / units.Gi
data["disk_available"] = freespace / units.Gi
data["disk_used"] = data["disk_total"] - data["disk_available"]
data["host_memory_total"] = stats['mem']['total']
data["host_memory_free"] = stats['mem']['free']
data["hypervisor_type"] = about_info.name
data["hypervisor_version"] = versionutils.convert_version_to_int(
str(about_info.version))
data["hypervisor_hostname"] = self._host_name
data["supported_instances"] = [
(obj_fields.Architecture.I686,
obj_fields.HVType.VMWARE,
obj_fields.VMMode.HVM),
(obj_fields.Architecture.X86_64,
obj_fields.HVType.VMWARE,
obj_fields.VMMode.HVM)]
self._stats = data
if self._auto_service_disabled:
self._set_host_enabled(True)
return data
def get_inventory(self, nodename):
"""Return a dict, keyed by resource class, of inventory information for
the supplied node.
"""
stats = vm_util.get_stats_from_cluster(self._session,
self._cluster_ref)
datastores = ds_util.get_available_datastores(self._session,
self._cluster_ref,
self._datastore_regex)
total_disk_capacity = sum([ds.capacity for ds in datastores])
max_free_space = max([ds.freespace for ds in datastores])
reserved_disk_gb = compute_utils.convert_mb_to_ceil_gb(
CONF.reserved_host_disk_mb)
result = {
obj_fields.ResourceClass.VCPU: {
'total': stats['cpu']['vcpus'],
'reserved': CONF.reserved_host_cpus,
'min_unit': 1,
'max_unit': stats['cpu']['max_vcpus_per_host'],
'step_size': 1,
},
obj_fields.ResourceClass.MEMORY_MB: {
'total': stats['mem']['total'],
'reserved': CONF.reserved_host_memory_mb,
'min_unit': 1,
'max_unit': stats['mem']['max_mem_mb_per_host'],
'step_size': 1,
},
obj_fields.ResourceClass.DISK_GB: {
'total': total_disk_capacity // units.Gi,
'reserved': reserved_disk_gb,
'min_unit': 1,
'max_unit': max_free_space // units.Gi,
'step_size': 1,
},
}
return result
def get_inventory(self, nodename):
"""Return a dict, keyed by resource class, of inventory information for
the supplied node.
"""
stats = vm_util.get_stats_from_cluster(self._session,
self._cluster_ref)
datastores = ds_util.get_available_datastores(self._session,
self._cluster_ref,
self._datastore_regex)
total_disk_capacity = sum([ds.capacity for ds in datastores])
max_free_space = max([ds.freespace for ds in datastores])
reserved_disk_gb = compute_utils.convert_mb_to_ceil_gb(
CONF.reserved_host_disk_mb)
result = {
fields.ResourceClass.VCPU: {
'total': stats['cpu']['vcpus'],
'reserved': CONF.reserved_host_cpus,
'min_unit': 1,
'max_unit': stats['cpu']['max_vcpus_per_host'],
'step_size': 1,
},
fields.ResourceClass.MEMORY_MB: {
'total': stats['mem']['total'],
'reserved': CONF.reserved_host_memory_mb,
'min_unit': 1,
'max_unit': stats['mem']['max_mem_mb_per_host'],
'step_size': 1,
},
fields.ResourceClass.DISK_GB: {
'total': total_disk_capacity // units.Gi,
'reserved': reserved_disk_gb,
'min_unit': 1,
'max_unit': max_free_space // units.Gi,
'step_size': 1,
},
}
return result
def _test_get_stats_from_cluster(self, connection_state="connected",
maintenance_mode=False):
ManagedObjectRefs = [fake.ManagedObjectReference("host1",
"HostSystem"),
fake.ManagedObjectReference("host2",
"HostSystem")]
hosts = fake._convert_to_array_of_mor(ManagedObjectRefs)
respool = fake.ManagedObjectReference("resgroup-11", "ResourcePool")
prop_dict = {'host': hosts, 'resourcePool': respool}
hardware = fake.DataObject()
hardware.numCpuCores = 8
hardware.numCpuThreads = 16
hardware.vendor = "Intel"
hardware.cpuModel = "Intel(R) Xeon(R)"
runtime_host_1 = fake.DataObject()
runtime_host_1.connectionState = "connected"
runtime_host_1.inMaintenanceMode = False
runtime_host_2 = fake.DataObject()
runtime_host_2.connectionState = connection_state
runtime_host_2.inMaintenanceMode = maintenance_mode
prop_list_host_1 = [fake.Prop(name="hardware_summary", val=hardware),
fake.Prop(name="runtime_summary",
val=runtime_host_1)]
prop_list_host_2 = [fake.Prop(name="hardware_summary", val=hardware),
fake.Prop(name="runtime_summary",
val=runtime_host_2)]
fake_objects = fake.FakeRetrieveResult()
fake_objects.add_object(fake.ObjectContent("prop_list_host1",
prop_list_host_1))
fake_objects.add_object(fake.ObjectContent("prop_list_host1",
prop_list_host_2))
respool_resource_usage = fake.DataObject()
respool_resource_usage.maxUsage = 5368709120
respool_resource_usage.overallUsage = 2147483648
def fake_call_method(*args):
if "get_dynamic_properties" in args:
return prop_dict
elif "get_properties_for_a_collection_of_objects" in args:
return fake_objects
else:
return respool_resource_usage
session = fake.FakeSession()
with mock.patch.object(session, '_call_method', fake_call_method):
result = vm_util.get_stats_from_cluster(session, "cluster1")
cpu_info = {}
mem_info = {}
if connection_state == "connected" and not maintenance_mode:
cpu_info['vcpus'] = 32
cpu_info['cores'] = 16
cpu_info['vendor'] = ["Intel", "Intel"]
cpu_info['model'] = ["Intel(R) Xeon(R)",
"Intel(R) Xeon(R)"]
else:
cpu_info['vcpus'] = 16
cpu_info['cores'] = 8
cpu_info['vendor'] = ["Intel"]
cpu_info['model'] = ["Intel(R) Xeon(R)"]
mem_info['total'] = 5120
mem_info['free'] = 3072
expected_stats = {'cpu': cpu_info, 'mem': mem_info}
self.assertEqual(expected_stats, result)
def update_provider_tree(self, provider_tree, nodename, allocations=None):
"""Update a ProviderTree object with current resource provider,
inventory information and CPU traits.
:param nova.compute.provider_tree.ProviderTree provider_tree:
A nova.compute.provider_tree.ProviderTree object representing all
the providers in the tree associated with the compute node, and any
sharing providers (those with the ``MISC_SHARES_VIA_AGGREGATE``
trait) associated via aggregate with any of those providers (but
not *their* tree- or aggregate-associated providers), as currently
known by placement.
:param nodename:
String name of the compute node (i.e.
ComputeNode.hypervisor_hostname) for which the caller is requesting
updated provider information.
:param allocations:
Dict of allocation data of the form:
{ $CONSUMER_UUID: {
# The shape of each "allocations" dict below is identical
# to the return from GET /allocations/{consumer_uuid}
"allocations": {
$RP_UUID: {
"generation": $RP_GEN,
"resources": {
$RESOURCE_CLASS: $AMOUNT,
...
},
},
...
},
"project_id": $PROJ_ID,
"user_id": $USER_ID,
"consumer_generation": $CONSUMER_GEN,
},
...
}
If None, and the method determines that any inventory needs to be
moved (from one provider to another and/or to a different resource
class), the ReshapeNeeded exception must be raised. Otherwise, this
dict must be edited in place to indicate the desired final state of
allocations.
:raises ReshapeNeeded: If allocations is None and any inventory needs
to be moved from one provider to another and/or to a different
resource class. At this time the VMware driver does not reshape.
:raises: ReshapeFailed if the requested tree reshape fails for
whatever reason.
"""
# NOTE(cdent): This is a side-effecty method, we are changing the
# the provider tree in place (on purpose).
inv = provider_tree.data(nodename).inventory
ratios = self._get_allocation_ratios(inv)
stats = vm_util.get_stats_from_cluster(self._session,
self._cluster_ref)
datastores = ds_util.get_available_datastores(self._session,
self._cluster_ref,
self._datastore_regex)
total_disk_capacity = sum([ds.capacity for ds in datastores])
max_free_space = max([ds.freespace for ds in datastores])
reserved_disk_gb = compute_utils.convert_mb_to_ceil_gb(
CONF.reserved_host_disk_mb)
result = {
orc.VCPU: {
'total': stats['cpu']['vcpus'],
'reserved': CONF.reserved_host_cpus,
'min_unit': 1,
'max_unit': stats['cpu']['max_vcpus_per_host'],
'step_size': 1,
'allocation_ratio': ratios[orc.VCPU],
},
orc.MEMORY_MB: {
'total': stats['mem']['total'],
'reserved': CONF.reserved_host_memory_mb,
'min_unit': 1,
'max_unit': stats['mem']['max_mem_mb_per_host'],
'step_size': 1,
'allocation_ratio': ratios[orc.MEMORY_MB],
},
}
# If a sharing DISK_GB provider exists in the provider tree, then our
# storage is shared, and we should not report the DISK_GB inventory in
# the compute node provider.
# TODO(cdent): We don't do this yet, in part because of the issues
# in bug #1784020, but also because we can represent all datastores
# as shared providers and should do once update_provider_tree is
# working well.
if provider_tree.has_sharing_provider(orc.DISK_GB):
LOG.debug('Ignoring sharing provider - see bug #1784020')
result[orc.DISK_GB] = {
'total': total_disk_capacity // units.Gi,
'reserved': reserved_disk_gb,
'min_unit': 1,
'max_unit': max_free_space // units.Gi,
'step_size': 1,
'allocation_ratio': ratios[orc.DISK_GB],
}
provider_tree.update_inventory(nodename, result)
def update_provider_tree(self, provider_tree, nodename, allocations=None):
"""Update a ProviderTree object with current resource provider,
inventory information and CPU traits.
:param nova.compute.provider_tree.ProviderTree provider_tree:
A nova.compute.provider_tree.ProviderTree object representing all
the providers in the tree associated with the compute node, and any
sharing providers (those with the ``MISC_SHARES_VIA_AGGREGATE``
trait) associated via aggregate with any of those providers (but
not *their* tree- or aggregate-associated providers), as currently
known by placement.
:param nodename:
String name of the compute node (i.e.
ComputeNode.hypervisor_hostname) for which the caller is requesting
updated provider information.
:param allocations:
Dict of allocation data of the form:
{ $CONSUMER_UUID: {
# The shape of each "allocations" dict below is identical
# to the return from GET /allocations/{consumer_uuid}
"allocations": {
$RP_UUID: {
"generation": $RP_GEN,
"resources": {
$RESOURCE_CLASS: $AMOUNT,
...
},
},
...
},
"project_id": $PROJ_ID,
"user_id": $USER_ID,
"consumer_generation": $CONSUMER_GEN,
},
...
}
If None, and the method determines that any inventory needs to be
moved (from one provider to another and/or to a different resource
class), the ReshapeNeeded exception must be raised. Otherwise, this
dict must be edited in place to indicate the desired final state of
allocations.
:raises ReshapeNeeded: If allocations is None and any inventory needs
to be moved from one provider to another and/or to a different
resource class. At this time the VMware driver does not reshape.
:raises: ReshapeFailed if the requested tree reshape fails for
whatever reason.
"""
# NOTE(cdent): This is a side-effecty method, we are changing the
# the provider tree in place (on purpose).
inv = provider_tree.data(nodename).inventory
ratios = self._get_allocation_ratios(inv)
stats = vm_util.get_stats_from_cluster(self._session,
self._cluster_ref)
datastores = ds_util.get_available_datastores(self._session,
self._cluster_ref,
self._datastore_regex)
total_disk_capacity = sum([ds.capacity for ds in datastores])
max_free_space = max([ds.freespace for ds in datastores])
reserved_disk_gb = compute_utils.convert_mb_to_ceil_gb(
CONF.reserved_host_disk_mb)
result = {
orc.VCPU: {
'total': stats['cpu']['vcpus'],
'reserved': CONF.reserved_host_cpus,
'min_unit': 1,
'max_unit': stats['cpu']['max_vcpus_per_host'],
'step_size': 1,
'allocation_ratio': ratios[orc.VCPU],
},
orc.MEMORY_MB: {
'total': stats['mem']['total'],
'reserved': CONF.reserved_host_memory_mb,
'min_unit': 1,
'max_unit': stats['mem']['max_mem_mb_per_host'],
'step_size': 1,
'allocation_ratio': ratios[orc.MEMORY_MB],
},
}
# If a sharing DISK_GB provider exists in the provider tree, then our
# storage is shared, and we should not report the DISK_GB inventory in
# the compute node provider.
# TODO(cdent): We don't do this yet, in part because of the issues
# in bug #1784020, but also because we can represent all datastores
# as shared providers and should do once update_provider_tree is
# working well.
if provider_tree.has_sharing_provider(orc.DISK_GB):
LOG.debug('Ignoring sharing provider - see bug #1784020')
result[orc.DISK_GB] = {
'total': total_disk_capacity // units.Gi,
'reserved': reserved_disk_gb,
'min_unit': 1,
'max_unit': max_free_space // units.Gi,
'step_size': 1,
'allocation_ratio': ratios[orc.DISK_GB],
}
provider_tree.update_inventory(nodename, result)