20bb0adcd3a6ecfd40ff1ab761e53c199f11db97
1 # -*- coding: utf-8 -*-
3 # Copyright 2018 Whitestack, LLC
4 # *************************************************************
6 # This file is part of OSM Monitoring module
7 # All Rights Reserved to Whitestack, LLC
9 # Licensed under the Apache License, Version 2.0 (the "License"); you may
10 # not use this file except in compliance with the License. You may obtain
11 # a copy of the License at
13 # http://www.apache.org/licenses/LICENSE-2.0
15 # Unless required by applicable law or agreed to in writing, software
16 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
17 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
18 # License for the specific language governing permissions and limitations
20 # For those usages not covered by the Apache License, Version 2.0 please
21 # contact: bdiaz@whitestack.com or glavado@whitestack.com
24 import multiprocessing
26 from typing
import Tuple
, List
28 from osm_common
.dbbase
import DbException
30 from osm_mon
.core
import database
31 from osm_mon
.core
.common_db
import CommonDbClient
32 from osm_mon
.core
.config
import Config
33 from osm_mon
.core
.database
import Alarm
, AlarmRepository
34 from osm_mon
.evaluator
.backends
.prometheus
import PrometheusBackend
36 log
= logging
.getLogger(__name__
)
39 'prometheus': PrometheusBackend
43 class AlarmStatus(Enum
):
46 INSUFFICIENT
= 'insufficient-data'
49 class EvaluatorService
:
51 def __init__(self
, config
: Config
):
53 self
.common_db
= CommonDbClient(self
.conf
)
54 self
.queue
= multiprocessing
.Queue()
56 def _get_metric_value(self
,
58 vnf_member_index
: str,
61 return BACKENDS
[self
.conf
.get('evaluator', 'backend')](self
.conf
).get_metric_value(metric_name
,
66 def _evaluate_metric(self
,
68 vnf_member_index
: str,
72 log
.debug("_evaluate_metric")
73 metric_value
= self
._get
_metric
_value
(nsr_id
, vnf_member_index
, vdur_name
, metric_name
)
74 if metric_value
is None:
75 log
.warning("No metric result for alarm %s", alarm
.id)
76 self
.queue
.put((alarm
, AlarmStatus
.INSUFFICIENT
))
78 if alarm
.operation
.upper() == 'GT':
79 if metric_value
> alarm
.threshold
:
80 self
.queue
.put((alarm
, AlarmStatus
.ALARM
))
82 self
.queue
.put((alarm
, AlarmStatus
.OK
))
83 elif alarm
.operation
.upper() == 'LT':
84 if metric_value
< alarm
.threshold
:
85 self
.queue
.put((alarm
, AlarmStatus
.ALARM
))
87 self
.queue
.put((alarm
, AlarmStatus
.OK
))
89 def evaluate_alarms(self
) -> List
[Tuple
[Alarm
, AlarmStatus
]]:
90 log
.debug('evaluate_alarms')
94 with database
.db
.atomic():
95 for alarm
in AlarmRepository
.list():
97 vnfr
= self
.common_db
.get_vnfr(alarm
.nsr_id
, alarm
.vnf_member_index
)
99 log
.exception("Error getting vnfr: ")
101 vnfd
= self
.common_db
.get_vnfd(vnfr
['vnfd-id'])
103 vdur
= next(filter(lambda vdur
: vdur
['name'] == alarm
.vdur_name
, vnfr
['vdur']))
104 except StopIteration:
105 log
.warning("No vdur found with name %s for alarm %s", alarm
.vdur_name
, alarm
.id)
107 vdu
= next(filter(lambda vdu
: vdu
['id'] == vdur
['vdu-id-ref'], vnfd
['vdu']))
108 vnf_monitoring_param
= next(
109 filter(lambda param
: param
['id'] == alarm
.monitoring_param
, vnfd
['monitoring-param']))
110 nsr_id
= vnfr
['nsr-id-ref']
111 vnf_member_index
= vnfr
['member-vnf-index-ref']
112 vdur_name
= vdur
['name']
113 if 'vdu-monitoring-param' in vnf_monitoring_param
:
114 vdu_monitoring_param
= next(filter(
115 lambda param
: param
['id'] == vnf_monitoring_param
['vdu-monitoring-param'][
116 'vdu-monitoring-param-ref'], vdu
['monitoring-param']))
117 nfvi_metric
= vdu_monitoring_param
['nfvi-metric']
119 p
= multiprocessing
.Process(target
=self
._evaluate
_metric
,
127 if 'vdu-metric' in vnf_monitoring_param
:
128 vnf_metric_name
= vnf_monitoring_param
['vdu-metric']['vdu-metric-name-ref']
129 p
= multiprocessing
.Process(target
=self
._evaluate
_metric
,
137 if 'vnf-metric' in vnf_monitoring_param
:
138 vnf_metric_name
= vnf_monitoring_param
['vnf-metric']['vnf-metric-name-ref']
139 p
= multiprocessing
.Process(target
=self
._evaluate
_metric
,
148 for process
in processes
:
149 process
.join(timeout
=10)
151 while not self
.queue
.empty():
152 alarms_tuples
.append(self
.queue
.get())