116 lines
3.6 KiB
Python
116 lines
3.6 KiB
Python
# Copyright 2011 OpenStack LLC.
|
|
# 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 Zone Aware Scheduler.
|
|
"""
|
|
|
|
from nova import test
|
|
from nova.scheduler import driver
|
|
from nova.scheduler import zone_aware_scheduler
|
|
from nova.scheduler import zone_manager
|
|
|
|
|
|
class FakeZoneAwareScheduler(zone_aware_scheduler.ZoneAwareScheduler):
|
|
def filter_hosts(self, num, specs):
|
|
# NOTE(sirp): this is returning [(hostname, services)]
|
|
return self.zone_manager.service_states.items()
|
|
|
|
def weigh_hosts(self, num, specs, hosts):
|
|
fake_weight = 99
|
|
weighted = []
|
|
for hostname, caps in hosts:
|
|
weighted.append(dict(weight=fake_weight, name=hostname))
|
|
return weighted
|
|
|
|
|
|
class FakeZoneManager(zone_manager.ZoneManager):
|
|
def __init__(self):
|
|
self.service_states = {
|
|
'host1': {
|
|
'compute': {'ram': 1000}},
|
|
'host2': {
|
|
'compute': {'ram': 2000}},
|
|
'host3': {
|
|
'compute': {'ram': 3000}}}
|
|
|
|
|
|
class FakeEmptyZoneManager(zone_manager.ZoneManager):
|
|
def __init__(self):
|
|
self.service_states = {}
|
|
|
|
|
|
def fake_empty_call_zone_method(context, method, specs):
|
|
return []
|
|
|
|
|
|
def fake_call_zone_method(context, method, specs):
|
|
return [
|
|
('zone1', [
|
|
dict(weight=1, blob='AAAAAAA'),
|
|
dict(weight=111, blob='BBBBBBB'),
|
|
dict(weight=112, blob='CCCCCCC'),
|
|
dict(weight=113, blob='DDDDDDD'),
|
|
]),
|
|
('zone2', [
|
|
dict(weight=120, blob='EEEEEEE'),
|
|
dict(weight=2, blob='FFFFFFF'),
|
|
dict(weight=122, blob='GGGGGGG'),
|
|
dict(weight=123, blob='HHHHHHH'),
|
|
]),
|
|
('zone3', [
|
|
dict(weight=130, blob='IIIIIII'),
|
|
dict(weight=131, blob='JJJJJJJ'),
|
|
dict(weight=132, blob='KKKKKKK'),
|
|
dict(weight=3, blob='LLLLLLL'),
|
|
]),
|
|
]
|
|
|
|
|
|
class ZoneAwareSchedulerTestCase(test.TestCase):
|
|
"""Test case for Zone Aware Scheduler."""
|
|
|
|
def test_zone_aware_scheduler(self):
|
|
"""
|
|
Create a nested set of FakeZones, ensure that a select call returns the
|
|
appropriate build plan.
|
|
"""
|
|
sched = FakeZoneAwareScheduler()
|
|
self.stubs.Set(sched, '_call_zone_method', fake_call_zone_method)
|
|
|
|
zm = FakeZoneManager()
|
|
sched.set_zone_manager(zm)
|
|
|
|
fake_context = {}
|
|
build_plan = sched.select(fake_context, {})
|
|
|
|
self.assertEqual(15, len(build_plan))
|
|
|
|
hostnames = [plan_item['name']
|
|
for plan_item in build_plan if 'name' in plan_item]
|
|
self.assertEqual(3, len(hostnames))
|
|
|
|
def test_empty_zone_aware_scheduler(self):
|
|
"""
|
|
Ensure empty hosts & child_zones result in NoValidHosts exception.
|
|
"""
|
|
sched = FakeZoneAwareScheduler()
|
|
self.stubs.Set(sched, '_call_zone_method', fake_empty_call_zone_method)
|
|
|
|
zm = FakeEmptyZoneManager()
|
|
sched.set_zone_manager(zm)
|
|
|
|
fake_context = {}
|
|
self.assertRaises(driver.NoValidHost, sched.schedule, fake_context, {})
|