f35c60c069
* Gets rid of annoying purge semantics * removes unique constraints from the db * deletes extra specs when a volume is deleted * adds exceptions for when the type already exists * fixes bug 854930 * fixes bug 925823 Change-Id: I4618759e31501b2e85325f4e9b9895f04dc151d0
627 lines
26 KiB
Python
627 lines
26 KiB
Python
# Copyright 2011 OpenStack LLC.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from nova import context
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from nova import db
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from nova import exception
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from nova import flags
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from nova import log as logging
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from nova import rpc
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from nova.scheduler import vsa as vsa_sched
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from nova import test
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from nova.tests.scheduler import test_scheduler
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from nova import utils
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from nova.volume import volume_types
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FLAGS = flags.FLAGS
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LOG = logging.getLogger('nova.tests.scheduler.vsa')
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scheduled_volumes = []
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scheduled_volume = {}
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global_volume = {}
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def fake_rpc_cast(*args, **kwargs):
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pass
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class FakeVsaLeastUsedScheduler(
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vsa_sched.VsaSchedulerLeastUsedHost):
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# No need to stub anything at the moment
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pass
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class FakeVsaMostAvailCapacityScheduler(
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vsa_sched.VsaSchedulerMostAvailCapacity):
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# No need to stub anything at the moment
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pass
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class VsaSchedulerTestCase(test_scheduler.SchedulerTestCase):
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driver_cls = FakeVsaLeastUsedScheduler
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def setUp(self):
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super(VsaSchedulerTestCase, self).setUp()
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self.host_num = 10
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self.drive_type_num = 5
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self.stubs.Set(rpc, 'cast', fake_rpc_cast)
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self.stubs.Set(self.driver,
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'_get_service_states', self._fake_get_service_states)
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self.stubs.Set(self.driver,
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'_provision_volume', self._fake_provision_volume)
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self.stubs.Set(db, 'vsa_update', self._fake_vsa_update)
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self.stubs.Set(db, 'volume_get', self._fake_volume_get)
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self.stubs.Set(db, 'volume_update', self._fake_volume_update)
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self.created_types_lst = []
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def tearDown(self):
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for name in self.created_types_lst:
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volume_types.destroy(self.context.elevated(), name)
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super(VsaSchedulerTestCase, self).tearDown()
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def _get_vol_creation_request(self, num_vols, drive_ix, size=0):
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volume_params = []
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for i in range(num_vols):
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name = 'name_' + str(i)
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try:
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volume_types.create(self.context.elevated(), name,
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extra_specs={'type': 'vsa_drive',
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'drive_name': name,
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'drive_type': 'type_' + str(drive_ix),
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'drive_size': 1 + 100 * (drive_ix)})
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self.created_types_lst.append(name)
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except exception.VolumeTypeExists:
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# type is already created
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pass
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volume_type = volume_types.get_volume_type_by_name(self.context,
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name)
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volume = {'size': size,
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'snapshot_id': None,
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'name': 'vol_' + str(i),
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'description': None,
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'volume_type_id': volume_type['id']}
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volume_params.append(volume)
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return {'num_volumes': len(volume_params),
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'vsa_id': 123,
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'volumes': volume_params}
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def _generate_default_service_states(self):
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service_states = {}
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for i in range(self.host_num):
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host = {}
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hostname = 'host_' + str(i)
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if hostname in self.exclude_host_list:
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continue
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host['volume'] = {'timestamp': utils.utcnow(),
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'drive_qos_info': {}}
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for j in range(self.drive_type_start_ix,
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self.drive_type_start_ix + self.drive_type_num):
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dtype = {}
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dtype['Name'] = 'name_' + str(j)
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dtype['DriveType'] = 'type_' + str(j)
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dtype['TotalDrives'] = 2 * (self.init_num_drives + i)
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dtype['DriveCapacity'] = vsa_sched.GB_TO_BYTES(1 + 100 * j)
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dtype['TotalCapacity'] = dtype['TotalDrives'] * \
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dtype['DriveCapacity']
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dtype['AvailableCapacity'] = (dtype['TotalDrives'] - i) * \
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dtype['DriveCapacity']
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dtype['DriveRpm'] = 7200
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dtype['DifCapable'] = 0
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dtype['SedCapable'] = 0
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dtype['PartitionDrive'] = {
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'PartitionSize': 0,
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'NumOccupiedPartitions': 0,
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'NumFreePartitions': 0}
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dtype['FullDrive'] = {
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'NumFreeDrives': dtype['TotalDrives'] - i,
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'NumOccupiedDrives': i}
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host['volume']['drive_qos_info'][dtype['Name']] = dtype
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service_states[hostname] = host
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return service_states
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def _print_service_states(self):
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for host, host_val in self.service_states.iteritems():
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LOG.info(_("Host %s"), host)
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total_used = 0
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total_available = 0
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qos = host_val['volume']['drive_qos_info']
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for k, d in qos.iteritems():
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LOG.info("\t%s: type %s: drives (used %2d, total %2d) "\
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"size %3d, total %4d, used %4d, avail %d",
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k, d['DriveType'],
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d['FullDrive']['NumOccupiedDrives'], d['TotalDrives'],
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vsa_sched.BYTES_TO_GB(d['DriveCapacity']),
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vsa_sched.BYTES_TO_GB(d['TotalCapacity']),
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vsa_sched.BYTES_TO_GB(d['TotalCapacity'] - \
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d['AvailableCapacity']),
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vsa_sched.BYTES_TO_GB(d['AvailableCapacity']))
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total_used += vsa_sched.BYTES_TO_GB(d['TotalCapacity'] - \
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d['AvailableCapacity'])
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total_available += vsa_sched.BYTES_TO_GB(
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d['AvailableCapacity'])
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LOG.info("Host %s: used %d, avail %d",
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host, total_used, total_available)
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def _set_service_states(self, host_num,
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drive_type_start_ix, drive_type_num,
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init_num_drives=10,
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exclude_host_list=[]):
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self.host_num = host_num
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self.drive_type_start_ix = drive_type_start_ix
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self.drive_type_num = drive_type_num
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self.exclude_host_list = exclude_host_list
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self.init_num_drives = init_num_drives
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self.service_states = self._generate_default_service_states()
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def _get_service_states(self):
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return self.service_states
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def _fake_get_service_states(self):
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return self._get_service_states()
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def _fake_provision_volume(self, context, vol, vsa_id, availability_zone):
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global scheduled_volumes
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scheduled_volumes.append(dict(vol=vol,
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vsa_id=vsa_id,
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az=availability_zone))
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name = vol['name']
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host = vol['host']
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LOG.debug(_("Test: provision vol %(name)s on host %(host)s"),
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locals())
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LOG.debug(_("\t vol=%(vol)s"), locals())
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def _fake_vsa_update(self, context, vsa_id, values):
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LOG.debug(_("Test: VSA update request: vsa_id=%(vsa_id)s "\
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"values=%(values)s"), locals())
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def _fake_volume_create(self, context, options):
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LOG.debug(_("Test: Volume create: %s"), options)
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options['id'] = 123
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global global_volume
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global_volume = options
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return options
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def _fake_volume_get(self, context, volume_id):
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LOG.debug(_("Test: Volume get request: id=%(volume_id)s"), locals())
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global global_volume
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global_volume['id'] = volume_id
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global_volume['availability_zone'] = None
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return global_volume
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def _fake_volume_update(self, context, volume_id, values):
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LOG.debug(_("Test: Volume update request: id=%(volume_id)s "\
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"values=%(values)s"), locals())
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global scheduled_volume
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scheduled_volume = {'id': volume_id, 'host': values['host']}
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def _fake_service_get_by_args(self, context, host, binary):
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return {'host': 'fake_host', 'disabled': False}
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def _fake_service_is_up_True(self, service):
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return True
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def _fake_service_is_up_False(self, service):
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return False
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def test_vsa_sched_create_volumes_simple(self):
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global scheduled_volumes
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scheduled_volumes = []
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self._set_service_states(host_num=10,
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drive_type_start_ix=0,
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drive_type_num=5,
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init_num_drives=10,
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exclude_host_list=['host_1', 'host_3'])
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prev = self._generate_default_service_states()
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request_spec = self._get_vol_creation_request(num_vols=3, drive_ix=2)
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self.driver.schedule_create_volumes(self.context,
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request_spec,
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availability_zone=None)
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self.assertEqual(len(scheduled_volumes), 3)
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self.assertEqual(scheduled_volumes[0]['vol']['host'], 'host_0')
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self.assertEqual(scheduled_volumes[1]['vol']['host'], 'host_2')
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self.assertEqual(scheduled_volumes[2]['vol']['host'], 'host_4')
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cur = self._get_service_states()
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for host in ['host_0', 'host_2', 'host_4']:
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cur_dtype = cur[host]['volume']['drive_qos_info']['name_2']
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prev_dtype = prev[host]['volume']['drive_qos_info']['name_2']
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self.assertEqual(cur_dtype['DriveType'], prev_dtype['DriveType'])
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self.assertEqual(cur_dtype['FullDrive']['NumFreeDrives'],
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prev_dtype['FullDrive']['NumFreeDrives'] - 1)
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self.assertEqual(cur_dtype['FullDrive']['NumOccupiedDrives'],
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prev_dtype['FullDrive']['NumOccupiedDrives'] + 1)
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def test_vsa_sched_no_drive_type(self):
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self._set_service_states(host_num=10,
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drive_type_start_ix=0,
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drive_type_num=5,
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init_num_drives=1)
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request_spec = self._get_vol_creation_request(num_vols=1, drive_ix=6)
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self.assertRaises(exception.NoValidHost,
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self.driver.schedule_create_volumes,
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self.context,
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request_spec,
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availability_zone=None)
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def test_vsa_sched_no_enough_drives(self):
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global scheduled_volumes
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scheduled_volumes = []
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self._set_service_states(host_num=3,
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drive_type_start_ix=0,
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drive_type_num=1,
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init_num_drives=0)
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prev = self._generate_default_service_states()
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request_spec = self._get_vol_creation_request(num_vols=3, drive_ix=0)
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self.assertRaises(exception.NoValidHost,
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self.driver.schedule_create_volumes,
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self.context,
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request_spec,
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availability_zone=None)
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# check that everything was returned back
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cur = self._get_service_states()
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for k, v in prev.iteritems():
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self.assertEqual(prev[k]['volume']['drive_qos_info'],
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cur[k]['volume']['drive_qos_info'])
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def test_vsa_sched_wrong_topic(self):
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self._set_service_states(host_num=1,
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drive_type_start_ix=0,
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drive_type_num=5,
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init_num_drives=1)
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states = self._get_service_states()
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new_states = {}
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new_states['host_0'] = {'compute': states['host_0']['volume']}
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self.service_states = new_states
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request_spec = self._get_vol_creation_request(num_vols=1, drive_ix=0)
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self.assertRaises(exception.NoValidHost,
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self.driver.schedule_create_volumes,
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self.context,
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request_spec,
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availability_zone=None)
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def test_vsa_sched_provision_volume(self):
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global global_volume
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global_volume = {}
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self._set_service_states(host_num=1,
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drive_type_start_ix=0,
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drive_type_num=1,
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init_num_drives=1)
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request_spec = self._get_vol_creation_request(num_vols=1, drive_ix=0)
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self.stubs.UnsetAll()
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self.stubs.Set(self.driver,
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'_get_service_states', self._fake_get_service_states)
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self.stubs.Set(db, 'volume_create', self._fake_volume_create)
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self.stubs.Set(db, 'volume_update', self._fake_volume_update)
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self.stubs.Set(rpc, 'cast', fake_rpc_cast)
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self.driver.schedule_create_volumes(self.context,
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request_spec,
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availability_zone=None)
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self.assertEqual(request_spec['volumes'][0]['name'],
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global_volume['display_name'])
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def test_vsa_sched_no_free_drives(self):
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self._set_service_states(host_num=1,
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drive_type_start_ix=0,
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drive_type_num=1,
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init_num_drives=1)
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request_spec = self._get_vol_creation_request(num_vols=1, drive_ix=0)
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self.driver.schedule_create_volumes(self.context,
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request_spec,
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availability_zone=None)
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cur = self._get_service_states()
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cur_dtype = cur['host_0']['volume']['drive_qos_info']['name_0']
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self.assertEqual(cur_dtype['FullDrive']['NumFreeDrives'], 1)
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new_request = self._get_vol_creation_request(num_vols=1, drive_ix=0)
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self.driver.schedule_create_volumes(self.context,
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request_spec,
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availability_zone=None)
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self._print_service_states()
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self.assertRaises(exception.NoValidHost,
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self.driver.schedule_create_volumes,
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self.context,
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new_request,
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availability_zone=None)
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def test_vsa_sched_forced_host(self):
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global scheduled_volumes
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scheduled_volumes = []
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self._set_service_states(host_num=10,
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drive_type_start_ix=0,
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drive_type_num=5,
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init_num_drives=10)
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request_spec = self._get_vol_creation_request(num_vols=3, drive_ix=2)
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self.assertRaises(exception.HostBinaryNotFound,
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self.driver.schedule_create_volumes,
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self.context.elevated(),
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request_spec,
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availability_zone="nova:host_5")
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self.stubs.Set(db,
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'service_get_by_args', self._fake_service_get_by_args)
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self.stubs.Set(utils,
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'service_is_up', self._fake_service_is_up_False)
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self.assertRaises(exception.WillNotSchedule,
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self.driver.schedule_create_volumes,
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self.context.elevated(),
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request_spec,
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availability_zone="nova:host_5")
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self.stubs.Set(utils,
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'service_is_up', self._fake_service_is_up_True)
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self.driver.schedule_create_volumes(self.context.elevated(),
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request_spec,
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availability_zone="nova:host_5")
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self.assertEqual(len(scheduled_volumes), 3)
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self.assertEqual(scheduled_volumes[0]['vol']['host'], 'host_5')
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self.assertEqual(scheduled_volumes[1]['vol']['host'], 'host_5')
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self.assertEqual(scheduled_volumes[2]['vol']['host'], 'host_5')
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def test_vsa_sched_create_volumes_partition(self):
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global scheduled_volumes
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scheduled_volumes = []
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self._set_service_states(host_num=5,
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drive_type_start_ix=0,
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drive_type_num=5,
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init_num_drives=1,
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exclude_host_list=['host_0', 'host_2'])
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prev = self._generate_default_service_states()
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request_spec = self._get_vol_creation_request(num_vols=3,
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drive_ix=3,
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size=50)
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self.driver.schedule_create_volumes(self.context,
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request_spec,
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availability_zone=None)
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self.assertEqual(len(scheduled_volumes), 3)
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self.assertEqual(scheduled_volumes[0]['vol']['host'], 'host_1')
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self.assertEqual(scheduled_volumes[1]['vol']['host'], 'host_3')
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self.assertEqual(scheduled_volumes[2]['vol']['host'], 'host_4')
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cur = self._get_service_states()
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for host in ['host_1', 'host_3', 'host_4']:
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cur_dtype = cur[host]['volume']['drive_qos_info']['name_3']
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prev_dtype = prev[host]['volume']['drive_qos_info']['name_3']
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self.assertEqual(cur_dtype['DriveType'], prev_dtype['DriveType'])
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self.assertEqual(cur_dtype['FullDrive']['NumFreeDrives'],
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prev_dtype['FullDrive']['NumFreeDrives'] - 1)
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self.assertEqual(cur_dtype['FullDrive']['NumOccupiedDrives'],
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prev_dtype['FullDrive']['NumOccupiedDrives'] + 1)
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self.assertEqual(prev_dtype['PartitionDrive']
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['NumOccupiedPartitions'], 0)
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self.assertEqual(cur_dtype['PartitionDrive']
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['NumOccupiedPartitions'], 1)
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self.assertEqual(cur_dtype['PartitionDrive']
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['NumFreePartitions'], 5)
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self.assertEqual(prev_dtype['PartitionDrive']
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['NumFreePartitions'], 0)
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self.assertEqual(prev_dtype['PartitionDrive']
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['PartitionSize'], 0)
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def test_vsa_sched_create_single_volume_az(self):
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global scheduled_volume
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scheduled_volume = {}
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def _fake_volume_get_az(context, volume_id):
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LOG.debug(_("Test: Volume get: id=%(volume_id)s"), locals())
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return {'id': volume_id, 'availability_zone': 'nova:host_3'}
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self.stubs.Set(db, 'volume_get', _fake_volume_get_az)
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self.stubs.Set(db, 'service_get_by_args',
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self._fake_service_get_by_args)
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self.stubs.Set(utils,
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'service_is_up', self._fake_service_is_up_True)
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self.driver.schedule_create_volume(self.context.elevated(),
|
|
123, availability_zone=None)
|
|
|
|
self.assertEqual(scheduled_volume['id'], 123)
|
|
self.assertEqual(scheduled_volume['host'], 'host_3')
|
|
|
|
def test_vsa_sched_create_single_non_vsa_volume(self):
|
|
global scheduled_volume
|
|
scheduled_volume = {}
|
|
|
|
global global_volume
|
|
global_volume = {}
|
|
global_volume['volume_type_id'] = None
|
|
|
|
self.assertRaises(exception.NoValidHost,
|
|
self.driver.schedule_create_volume,
|
|
self.context,
|
|
123,
|
|
availability_zone=None)
|
|
|
|
def test_vsa_sched_create_single_volume(self):
|
|
global scheduled_volume
|
|
scheduled_volume = {}
|
|
self._set_service_states(host_num=10,
|
|
drive_type_start_ix=0,
|
|
drive_type_num=5,
|
|
init_num_drives=10,
|
|
exclude_host_list=['host_0', 'host_1'])
|
|
prev = self._generate_default_service_states()
|
|
|
|
global global_volume
|
|
global_volume = {}
|
|
|
|
drive_ix = 2
|
|
name = 'name_' + str(drive_ix)
|
|
volume_types.create(self.context.elevated(), name,
|
|
extra_specs={'type': 'vsa_drive',
|
|
'drive_name': name,
|
|
'drive_type': 'type_' + str(drive_ix),
|
|
'drive_size': 1 + 100 * (drive_ix)})
|
|
self.created_types_lst.append(name)
|
|
volume_type = volume_types.get_volume_type_by_name(self.context, name)
|
|
|
|
global_volume['volume_type_id'] = volume_type['id']
|
|
global_volume['size'] = 0
|
|
|
|
self.driver.schedule_create_volume(self.context,
|
|
123, availability_zone=None)
|
|
|
|
self.assertEqual(scheduled_volume['id'], 123)
|
|
self.assertEqual(scheduled_volume['host'], 'host_2')
|
|
|
|
|
|
class VsaSchedulerTestCaseMostAvail(VsaSchedulerTestCase):
|
|
|
|
driver_cls = FakeVsaMostAvailCapacityScheduler
|
|
|
|
def test_vsa_sched_create_single_volume(self):
|
|
global scheduled_volume
|
|
scheduled_volume = {}
|
|
self._set_service_states(host_num=10,
|
|
drive_type_start_ix=0,
|
|
drive_type_num=5,
|
|
init_num_drives=10,
|
|
exclude_host_list=['host_0', 'host_1'])
|
|
prev = self._generate_default_service_states()
|
|
|
|
global global_volume
|
|
global_volume = {}
|
|
|
|
drive_ix = 2
|
|
name = 'name_' + str(drive_ix)
|
|
volume_types.create(self.context.elevated(), name,
|
|
extra_specs={'type': 'vsa_drive',
|
|
'drive_name': name,
|
|
'drive_type': 'type_' + str(drive_ix),
|
|
'drive_size': 1 + 100 * (drive_ix)})
|
|
self.created_types_lst.append(name)
|
|
volume_type = volume_types.get_volume_type_by_name(self.context, name)
|
|
|
|
global_volume['volume_type_id'] = volume_type['id']
|
|
global_volume['size'] = 0
|
|
|
|
self.driver.schedule_create_volume(self.context,
|
|
123, availability_zone=None)
|
|
|
|
self.assertEqual(scheduled_volume['id'], 123)
|
|
self.assertEqual(scheduled_volume['host'], 'host_9')
|
|
|
|
def test_vsa_sched_create_volumes_simple(self):
|
|
global scheduled_volumes
|
|
scheduled_volumes = []
|
|
self._set_service_states(host_num=10,
|
|
drive_type_start_ix=0,
|
|
drive_type_num=5,
|
|
init_num_drives=10,
|
|
exclude_host_list=['host_1', 'host_3'])
|
|
prev = self._generate_default_service_states()
|
|
request_spec = self._get_vol_creation_request(num_vols=3, drive_ix=2)
|
|
|
|
self._print_service_states()
|
|
|
|
self.driver.schedule_create_volumes(self.context,
|
|
request_spec,
|
|
availability_zone=None)
|
|
|
|
self.assertEqual(len(scheduled_volumes), 3)
|
|
self.assertEqual(scheduled_volumes[0]['vol']['host'], 'host_9')
|
|
self.assertEqual(scheduled_volumes[1]['vol']['host'], 'host_8')
|
|
self.assertEqual(scheduled_volumes[2]['vol']['host'], 'host_7')
|
|
|
|
cur = self._get_service_states()
|
|
for host in ['host_9', 'host_8', 'host_7']:
|
|
cur_dtype = cur[host]['volume']['drive_qos_info']['name_2']
|
|
prev_dtype = prev[host]['volume']['drive_qos_info']['name_2']
|
|
self.assertEqual(cur_dtype['DriveType'], prev_dtype['DriveType'])
|
|
self.assertEqual(cur_dtype['FullDrive']['NumFreeDrives'],
|
|
prev_dtype['FullDrive']['NumFreeDrives'] - 1)
|
|
self.assertEqual(cur_dtype['FullDrive']['NumOccupiedDrives'],
|
|
prev_dtype['FullDrive']['NumOccupiedDrives'] + 1)
|
|
|
|
def test_vsa_sched_create_volumes_partition(self):
|
|
global scheduled_volumes
|
|
scheduled_volumes = []
|
|
self._set_service_states(host_num=5,
|
|
drive_type_start_ix=0,
|
|
drive_type_num=5,
|
|
init_num_drives=1,
|
|
exclude_host_list=['host_0', 'host_2'])
|
|
prev = self._generate_default_service_states()
|
|
request_spec = self._get_vol_creation_request(num_vols=3,
|
|
drive_ix=3,
|
|
size=50)
|
|
self.driver.schedule_create_volumes(self.context,
|
|
request_spec,
|
|
availability_zone=None)
|
|
|
|
self.assertEqual(len(scheduled_volumes), 3)
|
|
self.assertEqual(scheduled_volumes[0]['vol']['host'], 'host_4')
|
|
self.assertEqual(scheduled_volumes[1]['vol']['host'], 'host_3')
|
|
self.assertEqual(scheduled_volumes[2]['vol']['host'], 'host_1')
|
|
|
|
cur = self._get_service_states()
|
|
for host in ['host_1', 'host_3', 'host_4']:
|
|
cur_dtype = cur[host]['volume']['drive_qos_info']['name_3']
|
|
prev_dtype = prev[host]['volume']['drive_qos_info']['name_3']
|
|
|
|
self.assertEqual(cur_dtype['DriveType'], prev_dtype['DriveType'])
|
|
self.assertEqual(cur_dtype['FullDrive']['NumFreeDrives'],
|
|
prev_dtype['FullDrive']['NumFreeDrives'] - 1)
|
|
self.assertEqual(cur_dtype['FullDrive']['NumOccupiedDrives'],
|
|
prev_dtype['FullDrive']['NumOccupiedDrives'] + 1)
|
|
|
|
self.assertEqual(prev_dtype['PartitionDrive']
|
|
['NumOccupiedPartitions'], 0)
|
|
self.assertEqual(cur_dtype['PartitionDrive']
|
|
['NumOccupiedPartitions'], 1)
|
|
self.assertEqual(cur_dtype['PartitionDrive']
|
|
['NumFreePartitions'], 5)
|
|
self.assertEqual(prev_dtype['PartitionDrive']
|
|
['NumFreePartitions'], 0)
|
|
self.assertEqual(prev_dtype['PartitionDrive']
|
|
['PartitionSize'], 0)
|