openstack/nova
Code Issues Proposed changes

Remove ExactCoreFilter ExactDiskFilter ExactRamFilter

Browse Source 
ExactCoreFilter, ExactDiskFilter and ExactRamFilter were deprecated
for removal in the Pike release [1] and are now being removed.

Now scheduling will use the custom resource class defined for each
baremetal node to make its selection.

[1] I843353427c90142a366ae9ca63ee4298b4f3ecd4

Change-Id: Ie25a5f6c28c20f589016791970da8d5849ec291c
This commit is contained in:
zhangyangyang 2018-04-25 17:25:42 +08:00 committed by Matt Riedemann
parent c15a0139af
commit 3c756ac659
9 changed files with 11 additions and 311 deletions
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17
doc/source/admin/configuration/schedulers.rst
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@ -416,23 +416,6 @@ greater than ``1.0``:
space, as the value approaching ``0`` may result in the incorrect
functioning of instances using it at the moment.
ExactCoreFilter
---------------
Only schedules instances on hosts if host has the exact number of CPU cores.
ExactDiskFilter
---------------
Only schedules instances on hosts if host has the exact amount of disk
available.
ExactRamFilter
--------------
Only schedules instances on hosts if host has the exact number of RAM
available.
.. _ImagePropertiesFilter:
ImagePropertiesFilter

3
nova/conf/scheduler.py
View File

@ -341,9 +341,6 @@ Related options:
"ComputeFilter",
"ComputeCapabilitiesFilter",
"ImagePropertiesFilter",
"ExactRamFilter",
"ExactDiskFilter",
"ExactCoreFilter",
],
deprecated_name="baremetal_scheduler_default_filters",
deprecated_group="DEFAULT",

58
nova/scheduler/filters/exact_core_filter.py
View File

@ -1,58 +0,0 @@
# Copyright (c) 2014 OpenStack Foundation
#
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from oslo_log import log as logging
from nova.i18n import _LW
from nova.scheduler import filters
LOG = logging.getLogger(__name__)
class ExactCoreFilter(filters.BaseHostFilter):
"""Exact Core Filter."""
RUN_ON_REBUILD = False
def __init__(self, *args, **kwargs):
super(ExactCoreFilter, self).__init__(*args, **kwargs)
LOG.warning('ExactCoreFilter is deprecated in Pike and will be '
'removed in a subsequent release.')
def host_passes(self, host_state, spec_obj):
"""Return True if host has the exact number of CPU cores."""
if not host_state.vcpus_total:
# Fail safe
LOG.warning(_LW("VCPUs not set; assuming CPU collection broken"))
return False
required_vcpus = spec_obj.vcpus
usable_vcpus = host_state.vcpus_total - host_state.vcpus_used
if required_vcpus != usable_vcpus:
LOG.debug("%(host_state)s does not have exactly "
"%(requested_vcpus)s cores of usable vcpu, it has "
"%(usable_vcpus)s.",
{'host_state': host_state,
'requested_vcpus': required_vcpus,
'usable_vcpus': usable_vcpus})
return False
# NOTE(mgoddard): Setting the limit ensures that it is enforced in
# compute. This ensures that if multiple instances are scheduled to a
# single host, then all after the first will fail in the claim.
host_state.limits['vcpu'] = host_state.vcpus_total
return True

52
nova/scheduler/filters/exact_disk_filter.py
View File

@ -1,52 +0,0 @@
# Copyright (c) 2014 OpenStack Foundation
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from oslo_log import log as logging
from nova.scheduler import filters
LOG = logging.getLogger(__name__)
class ExactDiskFilter(filters.BaseHostFilter):
"""Exact Disk Filter."""
RUN_ON_REBUILD = False
def __init__(self, *args, **kwargs):
super(ExactDiskFilter, self).__init__(*args, **kwargs)
LOG.warning('ExactDiskFilter is deprecated in Pike and will be '
'removed in a subsequent release.')
def host_passes(self, host_state, spec_obj):
"""Return True if host has the exact amount of disk available."""
requested_disk = (1024 * (spec_obj.root_gb +
spec_obj.ephemeral_gb) +
spec_obj.swap)
if requested_disk != host_state.free_disk_mb:
LOG.debug("%(host_state)s does not have exactly "
"%(requested_disk)s MB usable disk, it "
"has %(usable_disk_mb)s.",
{'host_state': host_state,
'requested_disk': requested_disk,
'usable_disk_mb': host_state.free_disk_mb})
return False
# NOTE(mgoddard): Setting the limit ensures that it is enforced in
# compute. This ensures that if multiple instances are scheduled to a
# single host, then all after the first will fail in the claim.
host_state.limits['disk_gb'] = host_state.total_usable_disk_gb
return True

49
nova/scheduler/filters/exact_ram_filter.py
View File

@ -1,49 +0,0 @@
# Copyright (c) 2014 OpenStack Foundation
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from oslo_log import log as logging
from nova.scheduler import filters
LOG = logging.getLogger(__name__)
class ExactRamFilter(filters.BaseHostFilter):
"""Exact RAM Filter."""
RUN_ON_REBUILD = False
def __init__(self, *args, **kwargs):
super(ExactRamFilter, self).__init__(*args, **kwargs)
LOG.warning('ExactRamFilter is deprecated in Pike and will be '
'removed in a subsequent release.')
def host_passes(self, host_state, spec_obj):
"""Return True if host has the exact amount of RAM available."""
requested_ram = spec_obj.memory_mb
if requested_ram != host_state.free_ram_mb:
LOG.debug("%(host_state)s does not have exactly "
"%(requested_ram)s MB usable RAM, it has "
"%(usable_ram)s MB.",
{'host_state': host_state,
'requested_ram': requested_ram,
'usable_ram': host_state.free_ram_mb})
return False
# NOTE(mgoddard): Setting the limit ensures that it is enforced in
# compute. This ensures that if multiple instances are scheduled to a
# single host, then all after the first will fail in the claim.
host_state.limits['memory_mb'] = host_state.total_usable_ram_mb
return True

48
nova/tests/unit/scheduler/filters/test_exact_core_filter.py
View File

@ -1,48 +0,0 @@
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from nova import objects
from nova.scheduler.filters import exact_core_filter
from nova import test
from nova.tests.unit.scheduler import fakes
class TestExactCoreFilter(test.NoDBTestCase):
def setUp(self):
super(TestExactCoreFilter, self).setUp()
self.filt_cls = exact_core_filter.ExactCoreFilter()
def test_exact_core_filter_passes(self):
spec_obj = objects.RequestSpec(
flavor=objects.Flavor(vcpus=1))
vcpus = 3
host = self._get_host({'vcpus_total': vcpus, 'vcpus_used': vcpus - 1})
self.assertTrue(self.filt_cls.host_passes(host, spec_obj))
self.assertEqual(host.limits.get('vcpu'), vcpus)
def test_exact_core_filter_fails(self):
spec_obj = objects.RequestSpec(
flavor=objects.Flavor(vcpus=2))
host = self._get_host({'vcpus_total': 3, 'vcpus_used': 2})
self.assertFalse(self.filt_cls.host_passes(host, spec_obj))
self.assertNotIn('vcpu', host.limits)
def test_exact_core_filter_fails_host_vcpus_not_set(self):
spec_obj = objects.RequestSpec(
flavor=objects.Flavor(vcpus=1))
host = self._get_host({})
self.assertFalse(self.filt_cls.host_passes(host, spec_obj))
self.assertNotIn('vcpu', host.limits)
def _get_host(self, host_attributes):
return fakes.FakeHostState('host1', 'node1', host_attributes)

42
nova/tests/unit/scheduler/filters/test_exact_disk_filter.py
View File

@ -1,42 +0,0 @@
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from nova import objects
from nova.scheduler.filters import exact_disk_filter
from nova import test
from nova.tests.unit.scheduler import fakes
class TestExactDiskFilter(test.NoDBTestCase):
def setUp(self):
super(TestExactDiskFilter, self).setUp()
self.filt_cls = exact_disk_filter.ExactDiskFilter()
def test_exact_disk_filter_passes(self):
spec_obj = objects.RequestSpec(
flavor=objects.Flavor(root_gb=1, ephemeral_gb=1, swap=1024))
disk_gb = 3
host = self._get_host({'free_disk_mb': disk_gb * 1024,
'total_usable_disk_gb': disk_gb})
self.assertTrue(self.filt_cls.host_passes(host, spec_obj))
self.assertEqual(host.limits.get('disk_gb'), disk_gb)
def test_exact_disk_filter_fails(self):
spec_obj = objects.RequestSpec(
flavor=objects.Flavor(root_gb=1, ephemeral_gb=1, swap=1024))
host = self._get_host({'free_disk_mb': 2 * 1024})
self.assertFalse(self.filt_cls.host_passes(host, spec_obj))
self.assertNotIn('disk_gb', host.limits)
def _get_host(self, host_attributes):
return fakes.FakeHostState('host1', 'node1', host_attributes)

42
nova/tests/unit/scheduler/filters/test_exact_ram_filter.py
View File

@ -1,42 +0,0 @@
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from nova import objects
from nova.scheduler.filters import exact_ram_filter
from nova import test
from nova.tests.unit.scheduler import fakes
class TestRamFilter(test.NoDBTestCase):
def setUp(self):
super(TestRamFilter, self).setUp()
self.filt_cls = exact_ram_filter.ExactRamFilter()
def test_exact_ram_filter_passes(self):
spec_obj = objects.RequestSpec(
flavor=objects.Flavor(memory_mb=1024))
ram_mb = 1024
host = self._get_host({'free_ram_mb': ram_mb,
'total_usable_ram_mb': ram_mb})
self.assertTrue(self.filt_cls.host_passes(host, spec_obj))
self.assertEqual(host.limits.get('memory_mb'), ram_mb)
def test_exact_ram_filter_fails(self):
spec_obj = objects.RequestSpec(
flavor=objects.Flavor(memory_mb=512))
host = self._get_host({'free_ram_mb': 1024})
self.assertFalse(self.filt_cls.host_passes(host, spec_obj))
self.assertNotIn('memory_mb', host.limits)
def _get_host(self, host_attributes):
return fakes.FakeHostState('host1', 'node1', host_attributes)

11
releasenotes/notes/remove_exact_filters-2fd96171b93d7413.yaml Normal file
View File

@ -0,0 +1,11 @@
---
upgrade:
- |
ExactCoreFilter, ExactDiskFilter and ExactRamFilter were deprecated for
removal in the 16.0.0 Pike release and have now been removed.
Baremetal scheduling will use the custom resource class defined for
each baremetal node to make its selection. Refer to the ironic
documentation for more details:
https://docs.openstack.org/ironic/latest/install/configure-nova-flavors.html#scheduling-resource-classes