493 lines
22 KiB
Python
493 lines
22 KiB
Python
#
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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 aodh/evaluator/composite.py
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"""
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import fixtures
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import mock
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from oslo_utils import timeutils
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from oslo_utils import uuidutils
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import six
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from six import moves
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from aodh import evaluator
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from aodh.evaluator import composite
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from aodh.storage import models
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from aodh.tests import constants
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from aodh.tests.unit.evaluator import base
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class BaseCompositeEvaluate(base.TestEvaluatorBase):
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EVALUATOR = composite.CompositeEvaluator
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def setUp(self):
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self.client = self.useFixture(fixtures.MockPatch(
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'aodh.evaluator.gnocchi.client'
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)).mock.Client.return_value
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super(BaseCompositeEvaluate, self).setUp()
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@staticmethod
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def _get_gnocchi_stats(granularity, values):
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now = timeutils.utcnow_ts()
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return [[six.text_type(now - len(values) * granularity),
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granularity, value] for value in values]
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@staticmethod
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def _reason(new_state, user_expression, causative_rules=(),
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transition=True):
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root_cause_rules = {}
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for index, rule in causative_rules:
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name = 'rule%s' % index
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root_cause_rules.update({name: rule})
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description = {evaluator.ALARM: 'outside their threshold.',
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evaluator.OK: 'inside their threshold.',
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evaluator.UNKNOWN: 'state evaluated to unknown.'}
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params = {'state': new_state,
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'expression': user_expression,
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'rules': ', '.join(sorted(six.iterkeys(root_cause_rules))),
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'description': description[new_state]}
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reason_data = {
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'type': 'composite',
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'composition_form': user_expression}
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reason_data.update(causative_rules=root_cause_rules)
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if transition:
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reason = ('Composite rule alarm with composition form: '
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'%(expression)s transition to %(state)s, due to '
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'rules: %(rules)s %(description)s' % params)
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else:
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reason = ('Composite rule alarm with composition form: '
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'%(expression)s remaining as %(state)s, due to '
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'rules: %(rules)s %(description)s' % params)
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return reason, reason_data
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class CompositeTest(BaseCompositeEvaluate):
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sub_rule1 = {
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"type": "gnocchi_aggregation_by_metrics_threshold",
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"metrics": ['41869681-5776-46d6-91ed-cccc43b6e4e3',
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'a1fb80f4-c242-4f57-87c6-68f47521059e'],
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"evaluation_periods": 5,
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"threshold": 0.8,
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"aggregation_method": "mean",
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"granularity": 60,
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"exclude_outliers": False,
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"comparison_operator": "gt"
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}
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sub_rule2 = {
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"type": "gnocchi_aggregation_by_metrics_threshold",
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"metrics": ['41869681-5776-46d6-91ed-cccc43b6e4e3',
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'a1fb80f4-c242-4f57-87c6-68f47521059e'],
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"evaluation_periods": 4,
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"threshold": 200,
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"aggregation_method": "max",
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"granularity": 60,
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"exclude_outliers": False,
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"comparison_operator": "gt"
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}
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sub_rule3 = {
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"type": "gnocchi_aggregation_by_metrics_threshold",
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"metrics": ['41869681-5776-46d6-91ed-cccc43b6e4e3',
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'a1fb80f4-c242-4f57-87c6-68f47521059e'],
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"evaluation_periods": 3,
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"threshold": 1000,
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"aggregation_method": "mean",
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"granularity": 60,
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"exclude_outliers": False,
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"comparison_operator": "gt"
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}
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sub_rule4 = {
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"type": "gnocchi_resources_threshold",
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'comparison_operator': 'gt',
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'threshold': 80.0,
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'evaluation_periods': 5,
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'aggregation_method': 'mean',
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'granularity': 60,
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'metric': 'cpu_util',
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'resource_type': 'instance',
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'resource_id': 'my_instance',
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}
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sub_rule5 = {
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"type": "gnocchi_aggregation_by_metrics_threshold",
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'comparison_operator': 'le',
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'threshold': 10.0,
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'evaluation_periods': 4,
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'aggregation_method': 'max',
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'granularity': 300,
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'metrics': ['0bb1604d-1193-4c0a-b4b8-74b170e35e83',
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'9ddc209f-42f8-41e1-b8f1-8804f59c4053']
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}
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sub_rule6 = {
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"type": "gnocchi_aggregation_by_resources_threshold",
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'comparison_operator': 'gt',
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'threshold': 80.0,
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'evaluation_periods': 6,
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'aggregation_method': 'mean',
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'granularity': 50,
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'metric': 'cpu_util',
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'resource_type': 'instance',
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'query': '{"=": {"server_group": "my_autoscaling_group"}}'
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}
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def prepare_alarms(self):
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self.alarms = [
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models.Alarm(name='alarm_threshold_nest',
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description='alarm with sub rules nested combined',
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type='composite',
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enabled=True,
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user_id='fake_user',
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project_id='fake_project',
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alarm_id=uuidutils.generate_uuid(),
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state='insufficient data',
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state_reason='insufficient data',
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state_timestamp=constants.MIN_DATETIME,
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timestamp=constants.MIN_DATETIME,
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insufficient_data_actions=[],
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ok_actions=[],
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alarm_actions=[],
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repeat_actions=False,
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time_constraints=[],
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rule={
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"or": [self.sub_rule1,
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{"and": [self.sub_rule2, self.sub_rule3]
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}]
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},
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severity='critical'),
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models.Alarm(name='alarm_threshold_or',
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description='alarm on one of sub rules triggered',
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type='composite',
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enabled=True,
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user_id='fake_user',
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project_id='fake_project',
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state='insufficient data',
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state_reason='insufficient data',
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state_timestamp=constants.MIN_DATETIME,
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timestamp=constants.MIN_DATETIME,
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insufficient_data_actions=[],
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ok_actions=[],
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alarm_actions=[],
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repeat_actions=False,
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alarm_id=uuidutils.generate_uuid(),
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time_constraints=[],
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rule={
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"or": [self.sub_rule1, self.sub_rule2,
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self.sub_rule3]
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},
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severity='critical'
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),
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models.Alarm(name='alarm_threshold_and',
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description='alarm on all the sub rules triggered',
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type='composite',
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enabled=True,
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user_id='fake_user',
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project_id='fake_project',
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state='insufficient data',
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state_reason='insufficient data',
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state_timestamp=constants.MIN_DATETIME,
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timestamp=constants.MIN_DATETIME,
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insufficient_data_actions=[],
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ok_actions=[],
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alarm_actions=[],
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repeat_actions=False,
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alarm_id=uuidutils.generate_uuid(),
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time_constraints=[],
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rule={
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"and": [self.sub_rule1, self.sub_rule2,
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self.sub_rule3]
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},
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severity='critical'
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),
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models.Alarm(name='alarm_multi_type_rules',
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description='alarm with threshold and gnocchi rules',
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type='composite',
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enabled=True,
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user_id='fake_user',
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project_id='fake_project',
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alarm_id=uuidutils.generate_uuid(),
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state='insufficient data',
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state_reason='insufficient data',
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state_timestamp=constants.MIN_DATETIME,
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timestamp=constants.MIN_DATETIME,
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insufficient_data_actions=[],
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ok_actions=[],
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alarm_actions=[],
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repeat_actions=False,
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time_constraints=[],
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rule={
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"and": [self.sub_rule2, self.sub_rule3,
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{'or': [self.sub_rule1, self.sub_rule4,
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self.sub_rule5, self.sub_rule6]}]
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},
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severity='critical'
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),
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]
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def test_simple_insufficient(self):
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self._set_all_alarms('ok')
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self.client.metric.aggregation.return_value = []
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self.client.metric.get_measures.return_value = []
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self._evaluate_all_alarms()
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self._assert_all_alarms('insufficient data')
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expected = [mock.call(alarm) for alarm in self.alarms]
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update_calls = self.storage_conn.update_alarm.call_args_list
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self.assertEqual(expected, update_calls)
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expected = [mock.call(self.alarms[0],
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'ok',
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*self._reason(
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'insufficient data',
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'(rule1 or (rule2 and rule3))',
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((1, self.sub_rule1), (2, self.sub_rule2),
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(3, self.sub_rule3)))),
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mock.call(self.alarms[1],
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'ok',
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*self._reason(
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'insufficient data',
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'(rule1 or rule2 or rule3)',
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((1, self.sub_rule1), (2, self.sub_rule2),
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(3, self.sub_rule3)))),
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mock.call(self.alarms[2],
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'ok',
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*self._reason(
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'insufficient data',
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'(rule1 and rule2 and rule3)',
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((1, self.sub_rule1), (2, self.sub_rule2),
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(3, self.sub_rule3)))),
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mock.call(
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self.alarms[3],
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'ok',
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*self._reason(
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'insufficient data',
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'(rule1 and rule2 and (rule3 or rule4 or rule5 '
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'or rule6))',
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((1, self.sub_rule2), (2, self.sub_rule3),
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(3, self.sub_rule1), (4, self.sub_rule4),
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(5, self.sub_rule5), (6, self.sub_rule6))))]
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self.assertEqual(expected, self.notifier.notify.call_args_list)
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def test_alarm_full_trip_with_multi_type_rules(self):
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alarm = self.alarms[3]
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alarm.state = 'ok'
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# following results of sub-rules evaluation to trigger
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# final "alarm" state:
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# self.sub_rule2: alarm
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# self.sub_rule3: alarm
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# self.sub_rule1: ok
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# self.sub_rule4: ok
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# self.sub_rule5: ok
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# self.sub_rule6: alarm
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maxs = self._get_gnocchi_stats(60, [self.sub_rule2['threshold'] + v
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for v in moves.xrange(1, 5)])
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avgs1 = self._get_gnocchi_stats(60, [self.sub_rule3['threshold'] + v
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for v in moves.xrange(1, 4)])
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avgs2 = self._get_gnocchi_stats(60, [self.sub_rule1['threshold'] - v
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for v in moves.xrange(1, 6)])
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gavgs1 = self._get_gnocchi_stats(60, [self.sub_rule4['threshold']
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- v for v in moves.xrange(1, 6)])
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gmaxs = self._get_gnocchi_stats(300, [self.sub_rule5['threshold'] + v
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for v in moves.xrange(1, 5)])
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gavgs2 = self._get_gnocchi_stats(50, [self.sub_rule6['threshold'] + v
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for v in moves.xrange(1, 7)])
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self.client.metric.get_measures.side_effect = [gavgs1]
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self.client.metric.aggregation.side_effect = [maxs, avgs1, avgs2,
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gmaxs, gavgs2]
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self.evaluator.evaluate(alarm)
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self.assertEqual(1, self.client.metric.get_measures.call_count)
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self.assertEqual(5, self.client.metric.aggregation.call_count)
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self.assertEqual('alarm', alarm.state)
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expected = mock.call(
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alarm, 'ok',
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*self._reason(
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'alarm',
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'(rule1 and rule2 and (rule3 or rule4 or rule5 or rule6))',
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((1, self.sub_rule2), (2, self.sub_rule3),
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(6, self.sub_rule6))))
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self.assertEqual(expected, self.notifier.notify.call_args)
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def test_alarm_with_short_circuit_logic(self):
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alarm = self.alarms[1]
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# self.sub_rule1: alarm
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avgs = self._get_gnocchi_stats(60, [self.sub_rule1['threshold'] + v
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for v in moves.xrange(1, 6)])
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self.client.metric.aggregation.side_effect = [avgs]
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self.evaluator.evaluate(alarm)
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self.assertEqual('alarm', alarm.state)
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self.assertEqual(1, self.client.metric.aggregation.call_count)
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expected = mock.call(self.alarms[1], 'insufficient data',
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*self._reason(
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'alarm',
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'(rule1 or rule2 or rule3)',
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((1, self.sub_rule1),)))
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self.assertEqual(expected, self.notifier.notify.call_args)
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def test_ok_with_short_circuit_logic(self):
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alarm = self.alarms[2]
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# self.sub_rule1: ok
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avgs = self._get_gnocchi_stats(60, [self.sub_rule1['threshold'] - v
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for v in moves.xrange(1, 6)])
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self.client.metric.aggregation.side_effect = [avgs]
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self.evaluator.evaluate(alarm)
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self.assertEqual('ok', alarm.state)
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self.assertEqual(1, self.client.metric.aggregation.call_count)
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expected = mock.call(self.alarms[2], 'insufficient data',
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*self._reason(
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'ok',
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'(rule1 and rule2 and rule3)',
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((1, self.sub_rule1),)))
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self.assertEqual(expected, self.notifier.notify.call_args)
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def test_unknown_state_with_sub_rules_trending_state(self):
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alarm = self.alarms[0]
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maxs = self._get_gnocchi_stats(60, [self.sub_rule2['threshold'] + v
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for v in moves.xrange(-1, 4)])
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avgs = self._get_gnocchi_stats(60, [self.sub_rule3['threshold'] + v
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for v in moves.xrange(-1, 3)])
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avgs2 = self._get_gnocchi_stats(60, [self.sub_rule1['threshold'] - v
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for v in moves.xrange(1, 6)])
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self.client.metric.aggregation.side_effect = [avgs2, maxs, avgs]
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self.evaluator.evaluate(alarm)
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self.assertEqual('alarm', alarm.state)
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expected = mock.call(self.alarms[0], 'insufficient data',
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*self._reason(
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'alarm',
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'(rule1 or (rule2 and rule3))',
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((2, self.sub_rule2),
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(3, self.sub_rule3))))
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self.assertEqual(expected, self.notifier.notify.call_args)
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def test_known_state_with_sub_rules_trending_state(self):
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alarm = self.alarms[0]
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alarm.repeat_actions = True
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alarm.state = 'ok'
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maxs = self._get_gnocchi_stats(60, [self.sub_rule2['threshold'] + v
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for v in moves.xrange(-1, 4)])
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avgs = self._get_gnocchi_stats(60, [self.sub_rule3['threshold'] + v
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for v in moves.xrange(-1, 3)])
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avgs2 = self._get_gnocchi_stats(60, [self.sub_rule1['threshold'] - v
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for v in moves.xrange(1, 6)])
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self.client.metric.aggregation.side_effect = [avgs2, maxs, avgs]
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self.evaluator.evaluate(alarm)
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self.assertEqual('ok', alarm.state)
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expected = mock.call(self.alarms[0], 'ok',
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*self._reason(
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'ok',
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'(rule1 or (rule2 and rule3))',
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((1, self.sub_rule1),
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(2, self.sub_rule2),
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(3, self.sub_rule3)), False))
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self.assertEqual(expected, self.notifier.notify.call_args)
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def test_known_state_with_sub_rules_trending_state_and_not_repeat(self):
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alarm = self.alarms[2]
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alarm.state = 'ok'
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maxs = self._get_gnocchi_stats(60, [self.sub_rule2['threshold'] + v
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for v in moves.xrange(-1, 4)])
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avgs = self._get_gnocchi_stats(60, [self.sub_rule3['threshold'] + v
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for v in moves.xrange(-1, 3)])
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avgs2 = self._get_gnocchi_stats(60, [self.sub_rule1['threshold'] - v
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for v in moves.xrange(1, 6)])
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self.client.metric.aggregation.side_effect = [avgs2, maxs, avgs]
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self.evaluator.evaluate(alarm)
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self.assertEqual('ok', alarm.state)
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self.assertEqual([], self.notifier.notify.mock_calls)
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class OtherCompositeTest(BaseCompositeEvaluate):
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sub_rule1 = {
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'evaluation_periods': 3,
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'metric': 'radosgw.objects.containers',
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'resource_id': 'alarm-resource-1',
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'aggregation_method': 'mean',
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'granularity': 60,
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'threshold': 5.0,
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'type': 'gnocchi_resources_threshold',
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'comparison_operator': 'ge',
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'resource_type': 'ceph_account'
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}
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sub_rule2 = {
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'evaluation_periods': 3,
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'metric': 'radosgw.objects.containers',
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'resource_id': 'alarm-resource-2',
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'aggregation_method': 'mean',
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'granularity': 60,
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'threshold': 5.0,
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'type': 'gnocchi_resources_threshold',
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'comparison_operator': 'ge',
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'resource_type': 'ceph_account'
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}
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def prepare_alarms(self):
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self.alarms = [
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models.Alarm(name='composite-GRT-OR-GRT',
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description='composite alarm converted',
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type='composite',
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enabled=True,
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user_id='fake_user',
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project_id='fake_project',
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state='insufficient data',
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state_reason='insufficient data',
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state_timestamp=constants.MIN_DATETIME,
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timestamp=constants.MIN_DATETIME,
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insufficient_data_actions=['log://'],
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ok_actions=['log://'],
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alarm_actions=['log://'],
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repeat_actions=False,
|
|
alarm_id=uuidutils.generate_uuid(),
|
|
time_constraints=[],
|
|
rule={
|
|
"or": [self.sub_rule1, self.sub_rule2]
|
|
},
|
|
severity='critical'
|
|
),
|
|
]
|
|
|
|
def test_simple_ok(self):
|
|
self._set_all_alarms('alarm')
|
|
|
|
gavgs1 = [['2016-11-24T10:00:00+00:00', 3600.0, 3.0],
|
|
['2016-11-24T10:00:00+00:00', 900.0, 3.0],
|
|
['2016-11-24T10:00:00+00:00', 300.0, 3.0],
|
|
['2016-11-24T10:01:00+00:00', 60.0, 2.0],
|
|
['2016-11-24T10:02:00+00:00', 60.0, 3.0],
|
|
['2016-11-24T10:03:00+00:00', 60.0, 4.0],
|
|
['2016-11-24T10:04:00+00:00', 60.0, 5.0]]
|
|
|
|
gavgs2 = [['2016-11-24T10:00:00+00:00', 3600.0, 3.0],
|
|
['2016-11-24T10:00:00+00:00', 900.0, 3.0],
|
|
['2016-11-24T10:00:00+00:00', 300.0, 3.0],
|
|
['2016-11-24T10:01:00+00:00', 60.0, 2.0],
|
|
['2016-11-24T10:02:00+00:00', 60.0, 3.0],
|
|
['2016-11-24T10:03:00+00:00', 60.0, 4.0],
|
|
['2016-11-24T10:04:00+00:00', 60.0, 5.0]]
|
|
|
|
self.client.metric.get_measures.side_effect = [gavgs1, gavgs2]
|
|
self._evaluate_all_alarms()
|
|
self._assert_all_alarms('ok')
|
|
expected = [mock.call(alarm) for alarm in self.alarms]
|
|
update_calls = self.storage_conn.update_alarm.call_args_list
|
|
self.assertEqual(expected, update_calls)
|
|
expected = [mock.call(self.alarms[0], 'alarm',
|
|
*self._reason('ok', '(rule1 or rule2)',
|
|
((1, self.sub_rule1),
|
|
(2, self.sub_rule2))))]
|
|
self.assertEqual(expected, self.notifier.notify.call_args_list)
|