openstack
/
nova
Code Issues Proposed changes

conf: Group scheduler options

Browse Source 
Move all scheduler options into their one of two groups. Many of the
options are simply renamed to remove their 'scheduler_' prefix, with
some exceptions:

* scheduler_default_filters -> enabled_filters
* scheduler_baremetal_default_filters -> baremetal_enabled_filters
* scheduler_driver_task_period -> periodic_task_interval
* scheduler_tracks_instance_changes -> track_instance_changes

Change-Id: I3f48e52815e80c99612bcd10cb53331a8c995fc3
Co-Authored-By: Stephen Finucane <sfinucan@redhat.com>
Implements: blueprint centralize-config-options-ocata
changes/59/349959/24
Alexis Lee 7 years ago committed by Stephen Finucane
parent f57cc519fd
commit 7d0381c91a
41 changed files with 287 additions and 190 deletions
Show Stats Download Patch File Download Diff File

38
doc/source/filter_scheduler.rst
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@ -318,17 +318,17 @@ Configuring Filters
To use filters you specify two settings:
* ``scheduler_available_filters`` - Defines filter classes made available to the
scheduler. This setting can be used multiple times.
* ``scheduler_default_filters`` - Of the available filters, defines those that
the scheduler uses by default.
* ``filter_scheduler.available_filters`` - Defines filter classes made
available to the scheduler. This setting can be used multiple times.
* ``filter_scheduler.enabled_filters`` - Of the available filters, defines
those that the scheduler uses by default.
The default values for these settings in nova.conf are:
::
--scheduler_available_filters=nova.scheduler.filters.all_filters
--scheduler_default_filters=RamFilter,ComputeFilter,AvailabilityZoneFilter,ComputeCapabilitiesFilter,ImagePropertiesFilter,ServerGroupAntiAffinityFilter,ServerGroupAffinityFilter'
--filter_scheduler.available_filters=nova.scheduler.filters.all_filters
--filter_scheduler.enabled_filters=RamFilter,ComputeFilter,AvailabilityZoneFilter,ComputeCapabilitiesFilter,ImagePropertiesFilter,ServerGroupAntiAffinityFilter,ServerGroupAffinityFilter
With this configuration, all filters in ``nova.scheduler.filters``
would be available, and by default the |RamFilter|, |ComputeFilter|,
@ -350,10 +350,10 @@ settings:
::
--scheduler_driver=nova.scheduler.FilterScheduler
--scheduler_available_filters=nova.scheduler.filters.all_filters
--scheduler_available_filters=myfilter.MyFilter
--scheduler_default_filters=RamFilter,ComputeFilter,MyFilter
--scheduler.driver=nova.scheduler.FilterScheduler
--filter_scheduler.available_filters=nova.scheduler.filters.all_filters
--filter_scheduler.available_filters=myfilter.MyFilter
--filter_scheduler.enabled_filters=RamFilter,ComputeFilter,MyFilter
.. note:: When writing your own filter, be sure to add it to the list of available filters
and enable it in the default filters. The "all_filters" setting only includes the
@ -364,15 +364,15 @@ driver. The standard nova filters and MyFilter are available to the
FilterScheduler. The RamFilter, ComputeFilter, and MyFilter are used by
default when no filters are specified in the request.
Each filter selects hosts in a different way and has different costs. The order of
``scheduler_default_filters`` affects scheduling performance. The general suggestion
is to filter out invalid hosts as soon as possible to avoid unnecessary costs.
We can sort ``scheduler_default_filters`` items by their costs in reverse order.
For example, ComputeFilter is better before any resource calculating filters
like RamFilter, CoreFilter.
Each filter selects hosts in a different way and has different costs. The order
of ``filter_scheduler.enabled_filters`` affects scheduling performance. The
general suggestion is to filter out invalid hosts as soon as possible to avoid
unnecessary costs. We can sort ``filter_scheduler.enabled_filters`` items by
their costs in reverse order. For example, ComputeFilter is better before any
resource calculating filters like RamFilter, CoreFilter.
In medium/large environments having AvailabilityZoneFilter before any capability or
resource calculating filters can be useful.
In medium/large environments having AvailabilityZoneFilter before any
capability or resource calculating filters can be useful.
Weights
-------
@ -396,7 +396,7 @@ and not modify the weight of the object directly, since final weights are normal
and computed by ``weight.BaseWeightHandler``.
The Filter Scheduler weighs hosts based on the config option
`scheduler_weight_classes`, this defaults to
`filter_scheduler.weight_classes`, this defaults to
`nova.scheduler.weights.all_weighers`, which selects the following weighers:
* |RAMWeigher| Compute weight based on available RAM on the compute node.

4
doc/source/testing/libvirt-numa.rst
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@ -295,8 +295,8 @@ Set the following parameters:
.. code-block:: bash
[DEFAULT]
scheduler_default_filters=RetryFilter, AvailabilityZoneFilter, RamFilter, ComputeFilter, ComputeCapabilitiesFilter, ImagePropertiesFilter, ServerGroupAntiAffinityFilter, ServerGroupAffinityFilter, NUMATopologyFilter
[filter_scheduler]
enabled_filters=RetryFilter, AvailabilityZoneFilter, RamFilter, ComputeFilter, ComputeCapabilitiesFilter, ImagePropertiesFilter, ServerGroupAntiAffinityFilter, ServerGroupAffinityFilter, NUMATopologyFilter
[libvirt]
virt_type = kvm

3
nova/compute/manager.py
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@ -515,7 +515,8 @@ class ComputeManager(manager.Manager):
self._sync_power_pool = eventlet.GreenPool(
size=CONF.sync_power_state_pool_size)
self._syncs_in_progress = {}
self.send_instance_updates = CONF.scheduler_tracks_instance_changes
self.send_instance_updates = (
CONF.filter_scheduler.track_instance_changes)
if CONF.max_concurrent_builds != 0:
self._build_semaphore = eventlet.semaphore.Semaphore(
CONF.max_concurrent_builds)

2
nova/conf/compute.py
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@ -437,7 +437,7 @@ interval_opts = [
help='Waiting time interval (seconds) between sending the '
'scheduler a list of current instance UUIDs to verify '
'that its view of instances is in sync with nova. If the '
'CONF option `scheduler_tracks_instance_changes` is '
'CONF option `filter_scheduler.track_instance_changes` is '
'False, changing this option will have no effect.'),
cfg.IntOpt('update_resources_interval',
default=0,

106
nova/conf/scheduler.py
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@ -1,5 +1,3 @@
# needs:check_opt_group_and_type
# Copyright 2015 OpenStack Foundation
# All Rights Reserved.
#
@ -17,7 +15,7 @@
from oslo_config import cfg
scheduler_opts = [
default_opts = [
cfg.StrOpt("scheduler_topic",
default="scheduler",
deprecated_for_removal=True,
@ -39,8 +37,8 @@ Possible values:
* A valid AMQP topic name
"""),
cfg.StrOpt(
"scheduler_json_config_location",
# TODO(sfinucan): Deprecate this option
cfg.StrOpt("scheduler_json_config_location",
default="",
help="""
The absolute path to the scheduler configuration JSON file, if any.
@ -53,10 +51,17 @@ dynamic configuration.
Possible values:
* A valid file path, or an empty string
"""),
cfg.StrOpt("scheduler_host_manager",
""")]
scheduler_group = cfg.OptGroup(name="scheduler",
title="Scheduler configuration")
scheduler_opts = [
cfg.StrOpt("host_manager",
default="host_manager",
choices=("host_manager", "ironic_host_manager"),
deprecated_name="scheduler_host_manager",
deprecated_group="DEFAULT",
help="""
The scheduler host manager to use.
@ -64,10 +69,12 @@ The host manager manages the in-memory picture of the hosts that the scheduler
uses. The options values are chosen from the entry points under the namespace
'nova.scheduler.host_manager' in 'setup.cfg'.
"""),
cfg.StrOpt("scheduler_driver",
cfg.StrOpt("driver",
default="filter_scheduler",
choices=("filter_scheduler", "caching_scheduler",
"chance_scheduler", "fake_scheduler"),
deprecated_name="scheduler_driver",
deprecated_group="DEFAULT",
help="""
The class of the driver used by the scheduler.
@ -86,9 +93,10 @@ Possible values:
** A custom scheduler driver. In this case, you will be responsible for
creating and maintaining the entry point in your 'setup.cfg' file
"""),
# TODO(sfinucan): Add 'min' paramter
cfg.IntOpt("scheduler_driver_task_period",
cfg.IntOpt("periodic_task_interval",
default=60,
deprecated_name="scheduler_driver_task_period",
deprecated_group="DEFAULT",
help="""
Periodic task interval.
@ -111,9 +119,11 @@ Related options:
* ``nova-service service_down_time``
"""),
cfg.IntOpt("scheduler_max_attempts",
cfg.IntOpt("max_attempts",
default=3,
min=1,
deprecated_name="scheduler_max_attempts",
deprecated_group="DEFAULT",
help="""
Maximum number of schedule attempts for a chosen host.
@ -129,10 +139,15 @@ Possible values:
attempts that can be made when scheduling an instance.
""")]
filter_scheduler_group = cfg.OptGroup(name="filter_scheduler",
title="Filter scheduler options")
filter_scheduler_opts = [
# TODO(sfinucan): Add 'min' paramter
cfg.IntOpt("scheduler_host_subset_size",
cfg.IntOpt("host_subset_size",
default=1,
deprecated_name="scheduler_host_subset_size",
deprecated_group="DEFAULT",
help="""
Size of subset of best hosts selected by scheduler.
@ -172,8 +187,10 @@ Possible values:
* An integer, where the integer corresponds to the max number of instances
that can be actively performing IO on any given host.
"""),
# TODO(sfinucan): Add 'min' parameter
cfg.IntOpt("max_instances_per_host",
default=50,
deprecated_group="DEFAULT",
help="""
Maximum number of instances that be active on a host.
@ -191,8 +208,10 @@ Possible values:
* An integer, where the integer corresponds to the max instances that can be
scheduled on a host.
"""),
cfg.BoolOpt("scheduler_tracks_instance_changes",
cfg.BoolOpt("track_instance_changes",
default=True,
deprecated_name="scheduler_tracks_instance_changes",
deprecated_group="DEFAULT",
help="""
Enable querying of individual hosts for instance information.
@ -209,13 +228,15 @@ usage data to query the database on each request instead.
This option is only used by the FilterScheduler and its subclasses; if you use
a different scheduler, this option has no effect.
"""),
cfg.MultiStrOpt("scheduler_available_filters",
cfg.MultiStrOpt("available_filters",
default=["nova.scheduler.filters.all_filters"],
deprecated_name="scheduler_available_filters",
deprecated_group="DEFAULT",
help="""
Filters that the scheduler can use.
An unordered list of the filter classes the nova scheduler may apply. Only the
filters specified in the 'scheduler_default_filters' option will be used, but
filters specified in the 'scheduler_enabled_filters' option will be used, but
any filter appearing in that option must also be included in this list.
By default, this is set to all filters that are included with nova.
@ -230,9 +251,9 @@ Possible values:
Related options:
* scheduler_default_filters
* scheduler_enabled_filters
"""),
cfg.ListOpt("scheduler_default_filters",
cfg.ListOpt("enabled_filters",
default=[
"RetryFilter",
"AvailabilityZoneFilter",
@ -244,6 +265,8 @@ Related options:
"ServerGroupAntiAffinityFilter",
"ServerGroupAffinityFilter",
],
deprecated_name="scheduler_default_filters",
deprecated_group="DEFAULT",
help="""
Filters that the scheduler will use.
@ -267,7 +290,7 @@ Related options:
'scheduler_available_filters' option, or a SchedulerHostFilterNotFound
exception will be raised.
"""),
cfg.ListOpt("baremetal_scheduler_default_filters",
cfg.ListOpt("baremetal_enabled_filters",
default=[
"RetryFilter",
"AvailabilityZoneFilter",
@ -278,6 +301,8 @@ Related options:
"ExactDiskFilter",
"ExactCoreFilter",
],
deprecated_name="baremetal_scheduler_default_filters",
deprecated_group="DEFAULT",
help="""
Filters used for filtering baremetal hosts.
@ -297,13 +322,15 @@ Related options:
* If the 'scheduler_use_baremetal_filters' option is False, this option has
no effect.
"""),
cfg.BoolOpt("scheduler_use_baremetal_filters",
cfg.BoolOpt("use_baremetal_filters",
deprecated_name="scheduler_use_baremetal_filters",
deprecated_group="DEFAULT",
default=False,
help="""
Enable baremetal filters.
Set this to True to tell the nova scheduler that it should use the filters
specified in the 'baremetal_scheduler_default_filters' option. If you are not
specified in the 'baremetal_scheduler_enabled_filters' option. If you are not
scheduling baremetal nodes, leave this at the default setting of False.
This option is only used by the FilterScheduler and its subclasses; if you use
@ -312,11 +339,13 @@ a different scheduler, this option has no effect.
Related options:
* If this option is set to True, then the filters specified in the
'baremetal_scheduler_default_filters' are used instead of the filters
specified in 'scheduler_default_filters'.
'baremetal_scheduler_enabled_filters' are used instead of the filters
specified in 'scheduler_enabled_filters'.
"""),
cfg.ListOpt("scheduler_weight_classes",
cfg.ListOpt("weight_classes",
default=["nova.scheduler.weights.all_weighers"],
deprecated_name="scheduler_weight_classes",
deprecated_group="DEFAULT",
help="""
Weighers that the scheduler will use.
@ -338,6 +367,7 @@ Possible values:
"""),
cfg.FloatOpt("ram_weight_multiplier",
default=1.0,
deprecated_group="DEFAULT",
help="""
Ram weight multipler ratio.
@ -361,6 +391,7 @@ Possible values:
"""),
cfg.FloatOpt("disk_weight_multiplier",
default=1.0,
deprecated_group="DEFAULT",
help="""
Disk weight multipler ratio.
@ -378,6 +409,7 @@ Possible values:
"""),
cfg.FloatOpt("io_ops_weight_multiplier",
default=-1.0,
deprecated_group="DEFAULT",
help="""
IO operations weight multipler ratio.
@ -401,6 +433,7 @@ Possible values:
"""),
cfg.FloatOpt("soft_affinity_weight_multiplier",
default=1.0,
deprecated_group="DEFAULT",
help="""
Multiplier used for weighing hosts for group soft-affinity.
@ -413,6 +446,7 @@ Possible values:
cfg.FloatOpt(
"soft_anti_affinity_weight_multiplier",
default=1.0,
deprecated_group="DEFAULT",
help="""
Multiplier used for weighing hosts for group soft-anti-affinity.
@ -423,10 +457,10 @@ Possible values:
meaningful, as negative values would make this behave as a soft affinity
weigher.
"""),
# TODO(mikal): replace this option with something involving host aggregates
cfg.ListOpt("isolated_images",
default=[],
deprecated_group="DEFAULT",
help="""
List of UUIDs for images that can only be run on certain hosts.
@ -449,6 +483,7 @@ Related options:
"""),
cfg.ListOpt("isolated_hosts",
default=[],
deprecated_group="DEFAULT",
help="""
List of hosts that can only run certain images.
@ -471,6 +506,7 @@ Related options:
cfg.BoolOpt(
"restrict_isolated_hosts_to_isolated_images",
default=True,
deprecated_group="DEFAULT",
help="""
Prevent non-isolated images from being built on isolated hosts.
@ -487,6 +523,7 @@ Related options:
"""),
cfg.StrOpt(
"aggregate_image_properties_isolation_namespace",
deprecated_group="DEFAULT",
help="""
Image property namespace for use in the host aggregate.
@ -513,6 +550,7 @@ Related options:
cfg.StrOpt(
"aggregate_image_properties_isolation_separator",
default=".",
deprecated_group="DEFAULT",
help="""
Separator character(s) for image property namespace and name.
@ -523,8 +561,8 @@ separator. This option defines the separator to be used.
This option is only used by the FilterScheduler and its subclasses; if you use
a different scheduler, this option has no effect. Also note that this setting
only affects scheduling if the 'aggregate_image_properties_isolation' filter is
enabled.
only affects scheduling if the 'aggregate_image_properties_isolation' filter
is enabled.
Possible values:
@ -534,8 +572,7 @@ Possible values:
Related options:
* aggregate_image_properties_isolation_namespace
"""),
]
""")]
trust_group = cfg.OptGroup(name="trusted_computing",
title="Trust parameters",
@ -717,7 +754,6 @@ Related options:
"""),
]
metrics_group = cfg.OptGroup(name="metrics",
title="Metrics parameters",
help="""
@ -727,7 +763,6 @@ Options under this group allow to adjust how values assigned to metrics are
calculated.
""")
metrics_weight_opts = [
cfg.FloatOpt("weight_multiplier",
default=1.0,
@ -840,7 +875,13 @@ Related options:
def register_opts(conf):
conf.register_opts(scheduler_opts + filter_scheduler_opts)
conf.register_opts(default_opts)
conf.register_group(scheduler_group)
conf.register_opts(scheduler_opts, group=scheduler_group)
conf.register_group(filter_scheduler_group)
conf.register_opts(filter_scheduler_opts, group=filter_scheduler_group)
conf.register_group(trust_group)
conf.register_opts(trusted_opts, group=trust_group)
@ -850,6 +891,7 @@ def register_opts(conf):
def list_opts():
return {"DEFAULT": scheduler_opts + filter_scheduler_opts,
return {scheduler_group: scheduler_opts,
filter_scheduler_group: filter_scheduler_opts,
trust_group: trusted_opts,
metrics_group: metrics_weight_opts}

2
nova/scheduler/driver.py
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@ -38,7 +38,7 @@ class Scheduler(object):
def __init__(self):
self.host_manager = driver.DriverManager(
"nova.scheduler.host_manager",
CONF.scheduler_host_manager,
CONF.scheduler.host_manager,
invoke_on_load=True).driver
self.servicegroup_api = servicegroup.API()

7
nova/scheduler/filter_scheduler.py
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@ -122,10 +122,9 @@ class FilterScheduler(driver.Scheduler):
LOG.debug("Weighed %(hosts)s", {'hosts': weighed_hosts})
scheduler_host_subset_size = max(1,
CONF.scheduler_host_subset_size)
if scheduler_host_subset_size < len(weighed_hosts):
weighed_hosts = weighed_hosts[0:scheduler_host_subset_size]
host_subset_size = max(1, CONF.filter_scheduler.host_subset_size)
if host_subset_size < len(weighed_hosts):
weighed_hosts = weighed_hosts[0:host_subset_size]
chosen_host = random.choice(weighed_hosts)
LOG.debug("Selected host: %(host)s", {'host': chosen_host})

6
nova/scheduler/filters/aggregate_image_properties_isolation.py
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@ -36,8 +36,10 @@ class AggregateImagePropertiesIsolation(filters.BaseHostFilter):
"""Checks a host in an aggregate that metadata key/value match
with image properties.
"""
cfg_namespace = CONF.aggregate_image_properties_isolation_namespace
cfg_separator = CONF.aggregate_image_properties_isolation_separator
cfg_namespace = (CONF.filter_scheduler.
aggregate_image_properties_isolation_namespace)
cfg_separator = (CONF.filter_scheduler.
aggregate_image_properties_isolation_separator)
image_props = spec_obj.image.properties if spec_obj.image else {}
metadata = utils.aggregate_metadata_get_by_host(host_state)

8
nova/scheduler/filters/io_ops_filter.py
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@ -29,7 +29,7 @@ class IoOpsFilter(filters.BaseHostFilter):
"""Filter out hosts with too many concurrent I/O operations."""
def _get_max_io_ops_per_host(self, host_state, spec_obj):
return CONF.max_io_ops_per_host
return CONF.filter_scheduler.max_io_ops_per_host
def host_passes(self, host_state, spec_obj):
"""Use information about current vm and task states collected from
@ -54,14 +54,16 @@ class AggregateIoOpsFilter(IoOpsFilter):
"""
def _get_max_io_ops_per_host(self, host_state, spec_obj):
max_io_ops_per_host = CONF.filter_scheduler.max_io_ops_per_host
aggregate_vals = utils.aggregate_values_from_key(
host_state,
'max_io_ops_per_host')
try:
value = utils.validate_num_values(
aggregate_vals, CONF.max_io_ops_per_host, cast_to=int)
aggregate_vals, max_io_ops_per_host, cast_to=int)
except ValueError as e:
LOG.warning(_LW("Could not decode max_io_ops_per_host: '%s'"), e)
value = CONF.max_io_ops_per_host
value = max_io_ops_per_host
return value

8
nova/scheduler/filters/isolated_hosts_filter.py
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@ -46,10 +46,10 @@ class IsolatedHostsFilter(filters.BaseHostFilter):
# If the configuration does not list any hosts, the filter will always
# return True, assuming a configuration error, so letting all hosts
# through.
isolated_hosts = CONF.isolated_hosts
isolated_images = CONF.isolated_images
restrict_isolated_hosts_to_isolated_images = (CONF.
restrict_isolated_hosts_to_isolated_images)
isolated_hosts = CONF.filter_scheduler.isolated_hosts
isolated_images = CONF.filter_scheduler.isolated_images
restrict_isolated_hosts_to_isolated_images = (
CONF.filter_scheduler.restrict_isolated_hosts_to_isolated_images)
if not isolated_images:
# As there are no images to match, return True if the filter is
# not restrictive otherwise return False if the host is in the

7
nova/scheduler/filters/num_instances_filter.py
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@ -29,7 +29,7 @@ class NumInstancesFilter(filters.BaseHostFilter):
"""Filter out hosts with too many instances."""
def _get_max_instances_per_host(self, host_state, spec_obj):
return CONF.max_instances_per_host
return CONF.filter_scheduler.max_instances_per_host
def host_passes(self, host_state, spec_obj):
num_instances = host_state.num_instances
@ -52,15 +52,16 @@ class AggregateNumInstancesFilter(NumInstancesFilter):
"""
def _get_max_instances_per_host(self, host_state, spec_obj):
max_instances_per_host = CONF.filter_scheduler.max_instances_per_host
aggregate_vals = utils.aggregate_values_from_key(
host_state,
'max_instances_per_host')
try:
value = utils.validate_num_values(
aggregate_vals, CONF.max_instances_per_host, cast_to=int)
aggregate_vals, max_instances_per_host, cast_to=int)
except ValueError as e:
LOG.warning(_LW("Could not decode max_instances_per_host: '%s'"),
e)
value = CONF.max_instances_per_host
value = max_instances_per_host
return value

15
nova/scheduler/host_manager.py
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@ -330,13 +330,13 @@ class HostManager(object):
self.host_state_map = {}
self.filter_handler = filters.HostFilterHandler()
filter_classes = self.filter_handler.get_matching_classes(
CONF.scheduler_available_filters)
CONF.filter_scheduler.available_filters)
self.filter_cls_map = {cls.__name__: cls for cls in filter_classes}
self.filter_obj_map = {}
self.default_filters = self._choose_host_filters(self._load_filters())
self.enabled_filters = self._choose_host_filters(self._load_filters())
self.weight_handler = weights.HostWeightHandler()
weigher_classes = self.weight_handler.get_matching_classes(
CONF.scheduler_weight_classes)
CONF.filter_scheduler.weight_classes)
self.weighers = [cls() for cls in weigher_classes]
# Dict of aggregates keyed by their ID
self.aggs_by_id = {}
@ -344,14 +344,15 @@ class HostManager(object):
# to those aggregates
self.host_aggregates_map = collections.defaultdict(set)
self._init_aggregates()
self.tracks_instance_changes = CONF.scheduler_tracks_instance_changes
self.track_instance_changes = (
CONF.filter_scheduler.track_instance_changes)
# Dict of instances and status, keyed by host
self._instance_info = {}
if self.tracks_instance_changes:
if self.track_instance_changes:
self._init_instance_info()
def _load_filters(self):
return CONF.scheduler_default_filters
return CONF.filter_scheduler.enabled_filters
def _init_aggregates(self):
elevated = context_module.get_admin_context()
@ -560,7 +561,7 @@ class HostManager(object):
return []
hosts = six.itervalues(name_to_cls_map)
return self.filter_handler.get_filtered_objects(self.default_filters,
return self.filter_handler.get_filtered_objects(self.enabled_filters,
hosts, spec_obj, index)
def get_weighed_hosts(self, hosts, spec_obj):

4
nova/scheduler/ironic_host_manager.py
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@ -81,8 +81,8 @@ class IronicHostManager(host_manager.HostManager):
return ht == hv_type.IRONIC
def _load_filters(self):
if CONF.scheduler_use_baremetal_filters:
return CONF.baremetal_scheduler_default_filters
if CONF.filter_scheduler.use_baremetal_filters:
return CONF.filter_scheduler.baremetal_enabled_filters
return super(IronicHostManager, self)._load_filters()
def host_state_cls(self, host, node, **kwargs):

4
nova/scheduler/manager.py
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@ -48,7 +48,7 @@ class SchedulerManager(manager.Manager):
def __init__(self, scheduler_driver=None, *args, **kwargs):
if not scheduler_driver:
scheduler_driver = CONF.scheduler_driver
scheduler_driver = CONF.scheduler.driver
self.driver = driver.DriverManager(
"nova.scheduler.driver",
scheduler_driver,
@ -60,7 +60,7 @@ class SchedulerManager(manager.Manager):
def _expire_reservations(self, context):
QUOTAS.expire(context)
@periodic_task.periodic_task(spacing=CONF.scheduler_driver_task_period,
@periodic_task.periodic_task(spacing=CONF.scheduler.periodic_task_interval,
run_immediately=True)
def _run_periodic_tasks(self, context):
self.driver.run_periodic_tasks(context)

11
nova/scheduler/utils.py
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@ -151,7 +151,7 @@ def populate_filter_properties(filter_properties, host_state):
def populate_retry(filter_properties, instance_uuid):
max_attempts = CONF.scheduler_max_attempts
max_attempts = CONF.scheduler.max_attempts
force_hosts = filter_properties.get('force_hosts', [])
force_nodes = filter_properties.get('force_nodes', [])
@ -252,14 +252,15 @@ def parse_options(opts, sep='=', converter=str, name=""):
def validate_filter(filter):
"""Validates that the filter is configured in the default filters."""
return filter in CONF.scheduler_default_filters
return filter in CONF.filter_scheduler.enabled_filters
def validate_weigher(weigher):
"""Validates that the weigher is configured in the default weighers."""
if 'nova.scheduler.weights.all_weighers' in CONF.scheduler_weight_classes:
weight_classes = CONF.filter_scheduler.weight_classes
if 'nova.scheduler.weights.all_weighers' in weight_classes:
return True
return weigher in CONF.scheduler_weight_classes
return weigher in weight_classes
_SUPPORTS_AFFINITY = None
@ -381,4 +382,4 @@ def retry_on_timeout(retries=1):
return wrapped
return outer
retry_select_destinations = retry_on_timeout(CONF.scheduler_max_attempts - 1)
retry_select_destinations = retry_on_timeout(CONF.scheduler.max_attempts - 1)

8
nova/scheduler/weights/affinity.py
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@ -58,7 +58,7 @@ class ServerGroupSoftAffinityWeigher(_SoftAffinityWeigherBase):
warning_sent = False
def weight_multiplier(self):
if (CONF.soft_affinity_weight_multiplier < 0 and
if (CONF.filter_scheduler.soft_affinity_weight_multiplier < 0 and
not self.warning_sent):
LOG.warning(_LW('For the soft_affinity_weight_multiplier only a '
'positive value is meaningful as a negative value '
@ -66,7 +66,7 @@ class ServerGroupSoftAffinityWeigher(_SoftAffinityWeigherBase):
'prefer non-collocating placement.'))
self.warning_sent = True
return CONF.soft_affinity_weight_multiplier
return CONF.filter_scheduler.soft_affinity_weight_multiplier
class ServerGroupSoftAntiAffinityWeigher(_SoftAffinityWeigherBase):
@ -74,7 +74,7 @@ class ServerGroupSoftAntiAffinityWeigher(_SoftAffinityWeigherBase):
warning_sent = False
def weight_multiplier(self):
if (CONF.soft_anti_affinity_weight_multiplier < 0 and
if (CONF.filter_scheduler.soft_anti_affinity_weight_multiplier < 0 and
not self.warning_sent):
LOG.warning(_LW('For the soft_anti_affinity_weight_multiplier '
'only a positive value is meaningful as a '
@ -82,7 +82,7 @@ class ServerGroupSoftAntiAffinityWeigher(_SoftAffinityWeigherBase):
'weigher would prefer collocating placement.'))
self.warning_sent = True
return CONF.soft_anti_affinity_weight_multiplier
return CONF.filter_scheduler.soft_anti_affinity_weight_multiplier
def _weigh_object(self, host_state, request_spec):
weight = super(ServerGroupSoftAntiAffinityWeigher, self)._weigh_object(

2
nova/scheduler/weights/disk.py
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@ -31,7 +31,7 @@ class DiskWeigher(weights.BaseHostWeigher):
def weight_multiplier(self):
"""Override the weight multiplier."""
return CONF.disk_weight_multiplier
return CONF.filter_scheduler.disk_weight_multiplier
def _weigh_object(self, host_state, weight_properties):
"""Higher weights win. We want spreading to be the default."""

2
nova/scheduler/weights/io_ops.py
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@ -32,7 +32,7 @@ class IoOpsWeigher(weights.BaseHostWeigher):
def weight_multiplier(self):
"""Override the weight multiplier."""
return CONF.io_ops_weight_multiplier
return CONF.filter_scheduler.io_ops_weight_multiplier
def _weigh_object(self, host_state, weight_properties):
"""Higher weights win. We want to choose light workload host

2
nova/scheduler/weights/ram.py
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@ -31,7 +31,7 @@ class RAMWeigher(weights.BaseHostWeigher):
def weight_multiplier(self):
"""Override the weight multiplier."""
return CONF.ram_weight_multiplier
return CONF.filter_scheduler.ram_weight_multiplier
def _weigh_object(self, host_state, weight_properties):
"""Higher weights win. We want spreading to be the default."""

2
nova/tests/functional/integrated_helpers.py
Unescape Escape View File

@ -90,7 +90,7 @@ class _IntegratedTestBase(test.TestCase):
return self.start_service('compute')
def _setup_scheduler_service(self):
self.flags(scheduler_driver='chance_scheduler')
self.flags(group='scheduler', driver='chance_scheduler')
return self.start_service('scheduler')
def _setup_services(self):

7
nova/tests/functional/libvirt/test_numa_servers.py
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@ -80,9 +80,10 @@ class NUMAServersTest(ServersTestBase):
def _setup_scheduler_service(self):
self.flags(compute_driver='libvirt.LibvirtDriver')
self.flags(scheduler_driver='filter_scheduler')
self.flags(scheduler_default_filters=CONF.scheduler_default_filters
+ ['NUMATopologyFilter'])
self.flags(driver='filter_scheduler', group='scheduler')
self.flags(enabled_filters=CONF.filter_scheduler.enabled_filters
+ ['NUMATopologyFilter'],
group='filter_scheduler')
return self.start_service('scheduler')
def _run_build_test(self, flavor_id, filter_mock, end_status='ACTIVE'):

2
nova/tests/functional/notification_sample_tests/notification_sample_base.py
Unescape Escape View File

@ -69,7 +69,7 @@ class NotificationSampleTestBase(test.TestCase,
self.useFixture(utils_fixture.TimeFixture(test_services.fake_utcnow()))
self.flags(scheduler_driver='chance_scheduler')
self.flags(driver='chance_scheduler', group='scheduler')
# the image fake backend needed for image discovery
nova.tests.unit.image.fake.stub_out_image_service(self)
self.addCleanup(nova.tests.unit.image.fake.FakeImageService_reset)

2
nova/tests/functional/regressions/test_bug_1522536.py
Unescape Escape View File

@ -41,7 +41,7 @@ class TestServerGet(test.TestCase):
nova.tests.unit.image.fake.stub_out_image_service(self)
self.start_service('conductor', manager=CONF.conductor.manager)
self.flags(scheduler_driver='chance_scheduler')
self.flags(driver='chance_scheduler', group='scheduler')
self.start_service('scheduler')
self.network = self.start_service('network')
self.compute = self.start_service('compute')

2
nova/tests/functional/regressions/test_bug_1548980.py
Unescape Escape View File

@ -49,7 +49,7 @@ class TestServerGet(test.TestCase):
nova.tests.unit.image.fake.stub_out_image_service(self)
self.start_service('conductor', manager=CONF.conductor.manager)
self.flags(scheduler_driver='chance_scheduler')
self.flags(driver='chance_scheduler', group='scheduler')
self.start_service('scheduler')
self.network = self.start_service('network')
self.compute = self.start_service('compute')

2
nova/tests/functional/regressions/test_bug_1595962.py
Unescape Escape View File

@ -67,7 +67,7 @@ class TestSerialConsoleLiveMigrate(test.TestCase):
self.flags(host="test_compute1")
self.start_service('conductor', manager=CONF.conductor.manager)
self.flags(scheduler_driver='chance_scheduler')
self.flags(driver='chance_scheduler', group='scheduler')
self.start_service('scheduler')
self.network = self.start_service('network')
self.compute = self.start_service('compute', host='test_compute1')

2
nova/tests/functional/test_compute_mgr.py
Unescape Escape View File

@ -46,7 +46,7 @@ class ComputeManagerTestCase(test.TestCase):
last exception. The fault message field is limited in size and a long
message with a traceback displaces the original error message.
"""
self.flags(scheduler_max_attempts=3)
self.flags(max_attempts=3, group='scheduler')
flavor = objects.Flavor(
id=1, name='flavor1', memory_mb=256, vcpus=1, root_gb=1,
ephemeral_gb=1, flavorid='1', swap=0, rxtx_factor=1.0,

20
nova/tests/functional/test_server_group.py
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@ -46,9 +46,9 @@ class ServerGroupTestBase(test.TestCase,
# Note(gibi): RamFilter is needed to ensure that
# test_boot_servers_with_affinity_no_valid_host behaves as expected
_scheduler_default_filters = ['ServerGroupAntiAffinityFilter',
'ServerGroupAffinityFilter',
'RamFilter']
_enabled_filters = ['ServerGroupAntiAffinityFilter',
'ServerGroupAffinityFilter',
'RamFilter']
# Override servicegroup parameters to make the tests run faster
_service_down_time = 2
@ -62,8 +62,10 @@ class ServerGroupTestBase(test.TestCase,
def setUp(self):
super(ServerGroupTestBase, self).setUp()
self.flags(scheduler_default_filters=self._scheduler_default_filters)
self.flags(scheduler_weight_classes=self._get_weight_classes())
self.flags(enabled_filters=self._enabled_filters,
group='filter_scheduler')
self.flags(weight_classes=self._get_weight_classes(),
group='filter_scheduler')
self.flags(service_down_time=self._service_down_time)
self.flags(report_interval=self._report_interval)
@ -460,7 +462,7 @@ class ServerGroupTestV21(ServerGroupTestBase):
class ServerGroupAffinityConfTest(ServerGroupTestBase):
api_major_version = 'v2.1'
# Load only anti-affinity filter so affinity will be missing
_scheduler_default_filters = 'ServerGroupAntiAffinityFilter'
_enabled_filters = 'ServerGroupAntiAffinityFilter'
@mock.patch('nova.scheduler.utils._SUPPORTS_AFFINITY', None)
def test_affinity_no_filter(self):
@ -477,7 +479,7 @@ class ServerGroupAffinityConfTest(ServerGroupTestBase):
class ServerGroupAntiAffinityConfTest(ServerGroupTestBase):
api_major_version = 'v2.1'
# Load only affinity filter so anti-affinity will be missing
_scheduler_default_filters = 'ServerGroupAffinityFilter'
_enabled_filters = 'ServerGroupAffinityFilter'
@mock.patch('nova.scheduler.utils._SUPPORTS_ANTI_AFFINITY', None)
def test_anti_affinity_no_filter(self):
@ -520,10 +522,6 @@ class ServerGroupSoftAntiAffinityConfTest(ServerGroupTestBase):
soft_anti_affinity = {'name': 'fake-name-3',
'policies': ['soft-anti-affinity']}
# Load only soft affinity filter so anti-affinity will be missing
_scheduler_weight_classes = ['nova.scheduler.weights.affinity.'
'ServerGroupSoftAffinityWeigher']
def _get_weight_classes(self):
# Load only soft affinity filter so anti-affinity will be missing
return ['nova.scheduler.weights.affinity.'

6
nova/tests/unit/scheduler/filters/test_aggregate_image_properties_isolation_filters.py
Unescape Escape View File

@ -94,8 +94,10 @@ class TestAggImagePropsIsolationFilter(test.NoDBTestCase):
def test_aggregate_image_properties_isolation_props_namespace(self,
agg_mock):
self.flags(aggregate_image_properties_isolation_namespace="hw")
self.flags(aggregate_image_properties_isolation_separator="_")
self.flags(aggregate_image_properties_isolation_namespace='hw',
group='filter_scheduler')
self.flags(aggregate_image_properties_isolation_separator='_',
group='filter_scheduler')
agg_mock.return_value = {'hw_vm_mode': 'hvm', 'img_owner_id': 'foo'}
spec_obj = objects.RequestSpec(
context=mock.sentinel.ctx,

8
nova/tests/unit/scheduler/filters/test_io_ops_filters.py
Unescape Escape View File

@ -22,7 +22,7 @@ from nova.tests.unit.scheduler import fakes
class TestNumInstancesFilter(test.NoDBTestCase):
def test_filter_num_iops_passes(self):
self.flags(max_io_ops_per_host=8)
self.flags(max_io_ops_per_host=8, group='filter_scheduler')
self.filt_cls = io_ops_filter.IoOpsFilter()
host = fakes.FakeHostState('host1', 'node1',
{'num_io_ops': 7})
@ -30,7 +30,7 @@ class TestNumInstancesFilter(test.NoDBTestCase):
self.assertTrue(self.filt_cls.host_passes(host, spec_obj))
def test_filter_num_iops_fails(self):
self.flags(max_io_ops_per_host=8)
self.flags(max_io_ops_per_host=8, group='filter_scheduler')
self.filt_cls = io_ops_filter.IoOpsFilter()
host = fakes.FakeHostState('host1', 'node1',
{'num_io_ops': 8})
@ -39,7 +39,7 @@ class TestNumInstancesFilter(test.NoDBTestCase):
@mock.patch('nova.scheduler.filters.utils.aggregate_values_from_key')
def test_aggregate_filter_num_iops_value(self, agg_mock):
self.flags(max_io_ops_per_host=7)
self.flags(max_io_ops_per_host=7, group='filter_scheduler')
self.filt_cls = io_ops_filter.AggregateIoOpsFilter()
host = fakes.FakeHostState('host1', 'node1',
{'num_io_ops': 7})
@ -52,7 +52,7 @@ class TestNumInstancesFilter(test.NoDBTestCase):
@mock.patch('nova.scheduler.filters.utils.aggregate_values_from_key')
def test_aggregate_filter_num_iops_value_error(self, agg_mock):
self.flags(max_io_ops_per_host=8)
self.flags(max_io_ops_per_host=8, group='filter_scheduler')
self.filt_cls = io_ops_filter.AggregateIoOpsFilter()
host = fakes.FakeHostState('host1', 'node1',
{'num_io_ops': 7})

7
nova/tests/unit/scheduler/filters/test_isolated_hosts_filter.py
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@ -30,7 +30,8 @@ class TestIsolatedHostsFilter(test.NoDBTestCase):
self.flags(isolated_images=[uuids.image_ref],
isolated_hosts=['isolated_host'],
restrict_isolated_hosts_to_isolated_images=
restrict_isolated_hosts_to_isolated_images)
restrict_isolated_hosts_to_isolated_images,
group='filter_scheduler')
host_name = 'isolated_host' if host_in_list else 'free_host'
image_ref = uuids.image_ref if image_in_list else uuids.fake_image_ref
spec_obj = objects.RequestSpec(image=objects.ImageMeta(id=image_ref))
@ -58,7 +59,7 @@ class TestIsolatedHostsFilter(test.NoDBTestCase):
self.assertTrue(self._do_test_isolated_hosts(False, False, False))
def test_isolated_hosts_no_hosts_config(self):
self.flags(isolated_images=[uuids.image_ref])
self.flags(isolated_images=[uuids.image_ref], group='filter_scheduler')
# If there are no hosts in the config, it should only filter out
# images that are listed
self.assertFalse(self._do_test_isolated_hosts(False, True, False))
@ -67,7 +68,7 @@ class TestIsolatedHostsFilter(test.NoDBTestCase):
self.assertTrue(self._do_test_isolated_hosts(False, False, False))
def test_isolated_hosts_no_images_config(self):
self.flags(isolated_hosts=['isolated_host'])
self.flags(isolated_hosts=['isolated_host'], group='filter_scheduler')
# If there are no images in the config, it should only filter out
# isolated_hosts
self.assertTrue(self._do_test_isolated_hosts(False, True, False))

8
nova/tests/unit/scheduler/filters/test_num_instances_filters.py
Unescape Escape View File

@ -21,7 +21,7 @@ from nova.tests.unit.scheduler import fakes
class TestNumInstancesFilter(test.NoDBTestCase):
def test_filter_num_instances_passes(self):
self.flags(max_instances_per_host=5)
self.flags(max_instances_per_host=5, group='filter_scheduler')
self.filt_cls = num_instances_filter.NumInstancesFilter()
host = fakes.FakeHostState('host1', 'node1',
{'num_instances': 4})
@ -29,7 +29,7 @@ class TestNumInstancesFilter(test.NoDBTestCase):
self.assertTrue(self.filt_cls.host_passes(host, spec_obj))
def test_filter_num_instances_fails(self):
self.flags(max_instances_per_host=5)
self.flags(max_instances_per_host=5, group='filter_scheduler')
self.filt_cls = num_instances_filter.NumInstancesFilter()
host = fakes.FakeHostState('host1', 'node1',
{'num_instances': 5})
@ -38,7 +38,7 @@ class TestNumInstancesFilter(test.NoDBTestCase):
@mock.patch('nova.scheduler.filters.utils.aggregate_values_from_key')
def test_filter_aggregate_num_instances_value(self, agg_mock):
self.flags(max_instances_per_host=4)
self.flags(max_instances_per_host=4, group='filter_scheduler')
self.filt_cls = num_instances_filter.AggregateNumInstancesFilter()
host = fakes.FakeHostState('host1', 'node1',
{'num_instances': 5})
@ -53,7 +53,7 @@ class TestNumInstancesFilter(test.NoDBTestCase):
@mock.patch('nova.scheduler.filters.utils.aggregate_values_from_key')
def test_filter_aggregate_num_instances_value_error(self, agg_mock):
self.flags(max_instances_per_host=6)
self.flags(max_instances_per_host=6, group='filter_scheduler')
self.filt_cls = num_instances_filter.AggregateNumInstancesFilter()
host = fakes.FakeHostState('host1', 'node1', {})
spec_obj = objects.RequestSpec(context=mock.sentinel.ctx)

12
nova/tests/unit/scheduler/test_filter_scheduler.py
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@ -122,9 +122,9 @@ class FilterSchedulerTestCase(test_scheduler.SchedulerTestCase):
'pci_requests': None})
def test_schedule_host_pool(self, mock_get_extra, mock_get_all,
mock_by_host, mock_get_by_binary):
"""Make sure the scheduler_host_subset_size property works properly."""
"""Make sure the host_subset_size property works properly."""
self.flags(scheduler_host_subset_size=2)
self.flags(host_subset_size=2, group='filter_scheduler')
spec_obj = objects.RequestSpec(
num_instances=1,
@ -161,7 +161,7 @@ class FilterSchedulerTestCase(test_scheduler.SchedulerTestCase):
is larger than number of filtered hosts.
"""
self.flags(scheduler_host_subset_size=20)
self.flags(host_subset_size=20, group='filter_scheduler')
spec_obj = objects.RequestSpec(
num_instances=1,
@ -195,11 +195,11 @@ class FilterSchedulerTestCase(test_scheduler.SchedulerTestCase):
def test_schedule_chooses_best_host(self, mock_get_extra, mock_cn_get_all,
mock_get_by_binary,
mock_get_inst_info):
"""If scheduler_host_subset_size is 1, the largest host with greatest
weight should be returned.
"""If host_subset_size is 1, the largest host with greatest weight
should be returned.
"""
self.flags(scheduler_host_subset_size=1)
self.flags(host_subset_size=1, group='filter_scheduler')
self.next_weight = 50
def _fake_weigh_objects(_self, functions, hosts, options):

17
nova/tests/unit/scheduler/test_host_manager.py
Unescape Escape View File

@ -58,10 +58,11 @@ class HostManagerTestCase(test.NoDBTestCase):
@mock.patch.object(host_manager.HostManager, '_init_aggregates')
def setUp(self, mock_init_agg, mock_init_inst):
super(HostManagerTestCase, self).setUp()
self.flags(scheduler_available_filters=['%s.%s' % (__name__, cls) for
cls in ['FakeFilterClass1',
'FakeFilterClass2']])
self.flags(scheduler_default_filters=['FakeFilterClass1'])
self.flags(available_filters=[
__name__ + '.FakeFilterClass1', __name__ + '.FakeFilterClass2'],
group='filter_scheduler')
self.flags(enabled_filters=['FakeFilterClass1'],
group='filter_scheduler')
self.host_manager = host_manager.HostManager()
self.fake_hosts = [host_manager.HostState('fake_host%s' % x,
'fake-node') for x in range(1, 5)]
@ -133,10 +134,10 @@ class HostManagerTestCase(test.NoDBTestCase):
# should not be called if the list of nodes was passed explicitly
self.assertFalse(mock_get_all.called)
def test_default_filters(self):
default_filters = self.host_manager.default_filters
self.assertEqual(1, len(default_filters))
self.assertIsInstance(default_filters[0], FakeFilterClass1)
def test_enabled_filters(self):
enabled_filters = self.host_manager.enabled_filters
self.assertEqual(1, len(enabled_filters))
self.assertIsInstance(enabled_filters[0], FakeFilterClass1)
@mock.patch.object(host_manager.HostManager, '_init_instance_info')
@mock.patch.object(objects.AggregateList, 'get_all')

48
nova/tests/unit/scheduler/test_ironic_host_manager.py
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@ -320,21 +320,23 @@ class IronicHostManagerTestFilters(test.NoDBTestCase):
@mock.patch.object(host_manager.HostManager, '_init_aggregates')
def setUp(self, mock_init_agg, mock_init_inst):
super(IronicHostManagerTestFilters, self).setUp()
self.flags(scheduler_available_filters=['%s.%s' % (__name__, cls) for
cls in ['FakeFilterClass1',
'FakeFilterClass2']])
self.flags(scheduler_default_filters=['FakeFilterClass1'])
self.flags(baremetal_scheduler_default_filters=['FakeFilterClass2'])
self.flags(available_filters=[
__name__ + '.FakeFilterClass1', __name__ + '.FakeFilterClass2'],
group='filter_scheduler')
self.flags(enabled_filters=['FakeFilterClass1'],
group='filter_scheduler')
self.flags(baremetal_enabled_filters=['FakeFilterClass2'],
group='filter_scheduler')
self.host_manager = ironic_host_manager.IronicHostManager()
self.fake_hosts = [ironic_host_manager.IronicNodeState(
'fake_host%s' % x, 'fake-node') for x in range(1, 5)]
self.fake_hosts += [ironic_host_manager.IronicNodeState(
'fake_multihost', 'fake-node%s' % x) for x in range(1, 5)]
def test_default_filters(self):
default_filters = self.host_manager.default_filters
self.assertEqual(1, len(default_filters))
self.assertIsInstance(default_filters[0], FakeFilterClass1)
def test_enabled_filters(self):
enabled_filters = self.host_manager.enabled_filters
self.assertEqual(1, len(enabled_filters))
self.assertIsInstance(enabled_filters[0], FakeFilterClass1)
def test_choose_host_filters_not_found(self):
self.assertRaises(exception.SchedulerHostFilterNotFound,
@ -348,33 +350,33 @@ class IronicHostManagerTestFilters(test.NoDBTestCase):
self.assertEqual(1, len(host_filters))
self.assertIsInstance(host_filters[0], FakeFilterClass2)
def test_host_manager_default_filters(self):
default_filters = self.host_manager.default_filters
self.assertEqual(1, len(default_filters))
self.assertIsInstance(default_filters[0], FakeFilterClass1)
def test_host_manager_enabled_filters(self):
enabled_filters = self.host_manager.enabled_filters
self.assertEqual(1, len(enabled_filters))
self.assertIsInstance(enabled_filters[0], FakeFilterClass1)
@mock.patch.object(ironic_host_manager.IronicHostManager,
'_init_instance_info')
@mock.patch.object(host_manager.HostManager, '_init_aggregates')
def test_host_manager_default_filters_uses_baremetal(self, mock_init_agg,
def test_host_manager_enabled_filters_uses_baremetal(self, mock_init_agg,
mock_init_inst):
self.flags(scheduler_use_baremetal_filters=True)
self.flags(use_baremetal_filters=True, group='filter_scheduler')
host_manager = ironic_host_manager.IronicHostManager()
# ensure the defaults come from baremetal_scheduler_default_filters
# and not scheduler_default_filters
default_filters = host_manager.default_filters
self.assertEqual(1, len(default_filters))
self.assertIsInstance(default_filters[0], FakeFilterClass2)
# ensure the defaults come from scheduler.baremetal_enabled_filters
# and not enabled_filters
enabled_filters = host_manager.enabled_filters
self.assertEqual(1, len(enabled_filters))
self.assertIsInstance(enabled_filters[0], FakeFilterClass2)
def test_load_filters(self):
# without scheduler_use_baremetal_filters
# without scheduler.use_baremetal_filters
filters = self.host_manager._load_filters()
self.assertEqual(['FakeFilterClass1'], filters)
def test_load_filters_baremetal(self):
# with scheduler_use_baremetal_filters
self.flags(scheduler_use_baremetal_filters=True)
# with scheduler.use_baremetal_filters
self.flags