183 lines
7.4 KiB
Python
183 lines
7.4 KiB
Python
# Copyright 2011 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.
|
|
"""
|
|
Tests For Chance Scheduler.
|
|
"""
|
|
|
|
import random
|
|
|
|
from mox3 import mox
|
|
|
|
from nova.compute import rpcapi as compute_rpcapi
|
|
from nova.compute import utils as compute_utils
|
|
from nova.compute import vm_states
|
|
from nova import context
|
|
from nova import db
|
|
from nova import exception
|
|
from nova.scheduler import chance
|
|
from nova.scheduler import driver
|
|
from nova.tests.unit.scheduler import test_scheduler
|
|
|
|
|
|
class ChanceSchedulerTestCase(test_scheduler.SchedulerTestCase):
|
|
"""Test case for Chance Scheduler."""
|
|
|
|
driver_cls = chance.ChanceScheduler
|
|
|
|
def test_filter_hosts_avoid(self):
|
|
"""Test to make sure _filter_hosts() filters original hosts if
|
|
avoid_original_host is True.
|
|
"""
|
|
|
|
hosts = ['host1', 'host2', 'host3']
|
|
request_spec = dict(instance_properties=dict(host='host2'))
|
|
filter_properties = {'ignore_hosts': ['host2']}
|
|
|
|
filtered = self.driver._filter_hosts(request_spec, hosts,
|
|
filter_properties=filter_properties)
|
|
self.assertEqual(filtered, ['host1', 'host3'])
|
|
|
|
def test_filter_hosts_no_avoid(self):
|
|
"""Test to make sure _filter_hosts() does not filter original
|
|
hosts if avoid_original_host is False.
|
|
"""
|
|
|
|
hosts = ['host1', 'host2', 'host3']
|
|
request_spec = dict(instance_properties=dict(host='host2'))
|
|
filter_properties = {'ignore_hosts': []}
|
|
|
|
filtered = self.driver._filter_hosts(request_spec, hosts,
|
|
filter_properties=filter_properties)
|
|
self.assertEqual(filtered, hosts)
|
|
|
|
def test_basic_schedule_run_instance(self):
|
|
ctxt = context.RequestContext('fake', 'fake', False)
|
|
ctxt_elevated = 'fake-context-elevated'
|
|
instance_opts = {'fake_opt1': 'meow', 'launch_index': -1}
|
|
instance1 = {'uuid': 'fake-uuid1'}
|
|
instance2 = {'uuid': 'fake-uuid2'}
|
|
request_spec = {'instance_uuids': ['fake-uuid1', 'fake-uuid2'],
|
|
'instance_properties': instance_opts}
|
|
|
|
def inc_launch_index(*args):
|
|
request_spec['instance_properties']['launch_index'] = (
|
|
request_spec['instance_properties']['launch_index'] + 1)
|
|
|
|
self.mox.StubOutWithMock(ctxt, 'elevated')
|
|
self.mox.StubOutWithMock(self.driver, 'hosts_up')
|
|
self.mox.StubOutWithMock(random, 'choice')
|
|
self.mox.StubOutWithMock(driver, 'instance_update_db')
|
|
self.mox.StubOutWithMock(compute_rpcapi.ComputeAPI, 'run_instance')
|
|
|
|
ctxt.elevated().AndReturn(ctxt_elevated)
|
|
# instance 1
|
|
hosts_full = ['host1', 'host2', 'host3', 'host4']
|
|
self.driver.hosts_up(ctxt_elevated, 'compute').AndReturn(hosts_full)
|
|
random.choice(hosts_full).AndReturn('host3')
|
|
driver.instance_update_db(ctxt, instance1['uuid']).WithSideEffects(
|
|
inc_launch_index).AndReturn(instance1)
|
|
compute_rpcapi.ComputeAPI.run_instance(ctxt, host='host3',
|
|
instance=instance1, requested_networks=None,
|
|
injected_files=None, admin_password=None, is_first_time=None,
|
|
request_spec=request_spec, filter_properties={},
|
|
legacy_bdm_in_spec=False)
|
|
|
|
# instance 2
|
|
ctxt.elevated().AndReturn(ctxt_elevated)
|
|
self.driver.hosts_up(ctxt_elevated, 'compute').AndReturn(hosts_full)
|
|
random.choice(hosts_full).AndReturn('host1')
|
|
driver.instance_update_db(ctxt, instance2['uuid']).WithSideEffects(
|
|
inc_launch_index).AndReturn(instance2)
|
|
compute_rpcapi.ComputeAPI.run_instance(ctxt, host='host1',
|
|
instance=instance2, requested_networks=None,
|
|
injected_files=None, admin_password=None, is_first_time=None,
|
|
request_spec=request_spec, filter_properties={},
|
|
legacy_bdm_in_spec=False)
|
|
|
|
self.mox.ReplayAll()
|
|
self.driver.schedule_run_instance(ctxt, request_spec,
|
|
None, None, None, None, {}, False)
|
|
|
|
def test_basic_schedule_run_instance_no_hosts(self):
|
|
ctxt = context.RequestContext('fake', 'fake', False)
|
|
ctxt_elevated = 'fake-context-elevated'
|
|
uuid = 'fake-uuid1'
|
|
instance_opts = {'fake_opt1': 'meow', 'launch_index': -1}
|
|
request_spec = {'instance_uuids': [uuid],
|
|
'instance_properties': instance_opts}
|
|
|
|
self.mox.StubOutWithMock(ctxt, 'elevated')
|
|
self.mox.StubOutWithMock(self.driver, 'hosts_up')
|
|
self.mox.StubOutWithMock(compute_utils, 'add_instance_fault_from_exc')
|
|
self.mox.StubOutWithMock(db, 'instance_update_and_get_original')
|
|
|
|
# instance 1
|
|
ctxt.elevated().AndReturn(ctxt_elevated)
|
|
self.driver.hosts_up(ctxt_elevated, 'compute').AndReturn([])
|
|
old_ref, new_ref = db.instance_update_and_get_original(ctxt, uuid,
|
|
{'vm_state': vm_states.ERROR,
|
|
'task_state': None}).AndReturn(({}, {}))
|
|
compute_utils.add_instance_fault_from_exc(ctxt, new_ref,
|
|
mox.IsA(exception.NoValidHost), mox.IgnoreArg())
|
|
|
|
self.mox.ReplayAll()
|
|
self.driver.schedule_run_instance(
|
|
ctxt, request_spec, None, None, None, None, {}, False)
|
|
|
|
def test_select_destinations(self):
|
|
ctxt = context.RequestContext('fake', 'fake', False)
|
|
ctxt_elevated = 'fake-context-elevated'
|
|
request_spec = {'num_instances': 2}
|
|
|
|
self.mox.StubOutWithMock(ctxt, 'elevated')
|
|
self.mox.StubOutWithMock(self.driver, 'hosts_up')
|
|
self.mox.StubOutWithMock(random, 'choice')
|
|
|
|
hosts_full = ['host1', 'host2', 'host3', 'host4']
|
|
|
|
ctxt.elevated().AndReturn(ctxt_elevated)
|
|
self.driver.hosts_up(ctxt_elevated, 'compute').AndReturn(hosts_full)
|
|
random.choice(hosts_full).AndReturn('host3')
|
|
|
|
ctxt.elevated().AndReturn(ctxt_elevated)
|
|
self.driver.hosts_up(ctxt_elevated, 'compute').AndReturn(hosts_full)
|
|
random.choice(hosts_full).AndReturn('host2')
|
|
|
|
self.mox.ReplayAll()
|
|
dests = self.driver.select_destinations(ctxt, request_spec, {})
|
|
self.assertEqual(2, len(dests))
|
|
(host, node) = (dests[0]['host'], dests[0]['nodename'])
|
|
self.assertEqual('host3', host)
|
|
self.assertIsNone(node)
|
|
(host, node) = (dests[1]['host'], dests[1]['nodename'])
|
|
self.assertEqual('host2', host)
|
|
self.assertIsNone(node)
|
|
|
|
def test_select_destinations_no_valid_host(self):
|
|
|
|
def _return_no_host(*args, **kwargs):
|
|
return []
|
|
|
|
self.mox.StubOutWithMock(self.driver, 'hosts_up')
|
|
self.driver.hosts_up(mox.IgnoreArg(),
|
|
mox.IgnoreArg()).AndReturn([1, 2])
|
|
self.stubs.Set(self.driver, '_filter_hosts', _return_no_host)
|
|
self.mox.ReplayAll()
|
|
|
|
request_spec = {'num_instances': 1}
|
|
self.assertRaises(exception.NoValidHost,
|
|
self.driver.select_destinations, self.context,
|
|
request_spec, {})
|