ef6f21ada7
High latency between I/O requests can be a sign of issues. Collecting disk metrics can help detect those issues. Windows / Hyper-V Server 2012 R2 can collect those metrics. This patch adds a disk latency metrics implementation for the Hyper-V Inspector as well as disk latency and per device latency pollsters. DocImpact Change-Id: I1621fc7d4226ae1f46cdfca878e8b52487ca4379 Implements: blueprint hyper-v-disk-latency-metrics
129 lines
4.7 KiB
Python
129 lines
4.7 KiB
Python
#
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# Copyright 2013 Intel Corp.
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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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"""Tests for ceilometer/central/manager.py
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"""
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import mock
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from oslotest import base
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from oslotest import mockpatch
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from stevedore import extension
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from ceilometer.agent import manager
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from ceilometer.agent import plugin_base
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from ceilometer import pipeline
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from ceilometer.tests.agent import agentbase
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class TestManager(base.BaseTestCase):
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@mock.patch('ceilometer.pipeline.setup_pipeline', mock.MagicMock())
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def test_load_plugins(self):
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mgr = manager.AgentManager()
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self.assertIsNotNone(list(mgr.extensions))
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def test_load_plugins_pollster_list(self):
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mgr = manager.AgentManager(pollster_list=['disk.*'])
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# currently we do have 18 disk-related pollsters
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self.assertEqual(18, len(list(mgr.extensions)))
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def test_load_plugins_no_intersection(self):
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# Let's test nothing will be polled if namespace and pollsters
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# list have no intersection.
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mgr = manager.AgentManager(namespaces=['compute'],
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pollster_list=['storage.*'])
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self.assertEqual(0, len(list(mgr.extensions)))
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class TestPollsterKeystone(agentbase.TestPollster):
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@plugin_base.check_keystone
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def get_samples(self, manager, cache, resources):
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func = super(TestPollsterKeystone, self).get_samples
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return func(manager=manager,
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cache=cache,
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resources=resources)
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class TestRunTasks(agentbase.BaseAgentManagerTestCase):
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class PollsterKeystone(TestPollsterKeystone):
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samples = []
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resources = []
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test_data = agentbase.TestSample(
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name='testkeystone',
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type=agentbase.default_test_data.type,
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unit=agentbase.default_test_data.unit,
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volume=agentbase.default_test_data.volume,
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user_id=agentbase.default_test_data.user_id,
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project_id=agentbase.default_test_data.project_id,
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resource_id=agentbase.default_test_data.resource_id,
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timestamp=agentbase.default_test_data.timestamp,
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resource_metadata=agentbase.default_test_data.resource_metadata)
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@staticmethod
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def create_manager():
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return manager.AgentManager()
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def setUp(self):
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self.source_resources = True
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super(TestRunTasks, self).setUp()
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self.useFixture(mockpatch.Patch(
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'keystoneclient.v2_0.client.Client',
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return_value=mock.Mock()))
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def tearDown(self):
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self.PollsterKeystone.samples = []
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self.PollsterKeystone.resources = []
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super(TestRunTasks, self).tearDown()
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def create_extension_list(self):
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exts = super(TestRunTasks, self).create_extension_list()
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exts.append(extension.Extension('testkeystone',
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None,
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None,
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self.PollsterKeystone(),))
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return exts
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def test_get_sample_resources(self):
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polling_tasks = self.mgr.setup_polling_tasks()
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self.mgr.interval_task(polling_tasks.values()[0])
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self.assertTrue(self.Pollster.resources)
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def test_when_keystone_fail(self):
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"""Test for bug 1316532."""
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self.useFixture(mockpatch.Patch(
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'keystoneclient.v2_0.client.Client',
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side_effect=Exception))
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self.pipeline_cfg = [
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{
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'name': "test_keystone",
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'interval': 10,
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'counters': ['testkeystone'],
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'resources': ['test://'] if self.source_resources else [],
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'transformers': [],
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'publishers': ["test"],
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},
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]
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self.mgr.pipeline_manager = pipeline.PipelineManager(
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self.pipeline_cfg,
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self.transformer_manager)
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polling_tasks = self.mgr.setup_polling_tasks()
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self.mgr.interval_task(polling_tasks.values()[0])
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self.assertFalse(self.PollsterKeystone.samples)
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def test_interval_exception_isolation(self):
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super(TestRunTasks, self).test_interval_exception_isolation()
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self.assertEqual(1, len(self.PollsterException.samples))
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self.assertEqual(1, len(self.PollsterExceptionAnother.samples))
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