100 lines
3.1 KiB
Python
100 lines
3.1 KiB
Python
#!/usr/bin/python
|
|
# Copyright 2017 Mirantis, Inc.
|
|
#
|
|
# 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.
|
|
#
|
|
# Collectd plugin for getting statistics from Nova
|
|
import collectd
|
|
from collections import Counter
|
|
from collections import defaultdict
|
|
import re
|
|
|
|
import collectd_openstack as openstack
|
|
|
|
PLUGIN_NAME = 'nova'
|
|
INTERVAL = openstack.INTERVAL
|
|
|
|
|
|
class NovaServiceStatsPlugin(openstack.CollectdPlugin):
|
|
""" Class to report the statistics on Nova services.
|
|
|
|
status per service broken down by state
|
|
"""
|
|
|
|
states = {'up': 0, 'down': 1, 'disabled': 2}
|
|
nova_re = re.compile('^nova-')
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
super(NovaServiceStatsPlugin, self).__init__(*args, **kwargs)
|
|
self.plugin = PLUGIN_NAME
|
|
self.interval = INTERVAL
|
|
|
|
def itermetrics(self):
|
|
|
|
# Get information of the state per service
|
|
# State can be: 'up', 'down' or 'disabled'
|
|
aggregated_workers = defaultdict(Counter)
|
|
|
|
for worker in self.iter_workers('nova'):
|
|
host = worker['host'].split('.')[0]
|
|
service = self.nova_re.sub('', worker['service'])
|
|
state = worker['state']
|
|
|
|
aggregated_workers[service][state] += 1
|
|
yield {
|
|
'plugin_instance': 'nova_service',
|
|
'values': self.states[state],
|
|
'meta': {'host': host, 'service': service, 'state': state}
|
|
}
|
|
|
|
for service in set(aggregated_workers.keys()).union(
|
|
('compute', 'scheduler', 'conductor', 'cert', 'consoleauth')):
|
|
|
|
total = sum(aggregated_workers[service].values())
|
|
|
|
for state in self.states:
|
|
prct = 0
|
|
if total > 0:
|
|
prct = (100.0 * aggregated_workers[service][state]) / total
|
|
|
|
yield {
|
|
'plugin_instance': 'nova_services_percent',
|
|
'values': prct,
|
|
'meta': {'state': state, 'service': service},
|
|
}
|
|
yield {
|
|
'plugin_instance': 'nova_services',
|
|
'values': aggregated_workers[service][state],
|
|
'meta': {'state': state, 'service': service},
|
|
}
|
|
|
|
|
|
plugin = NovaServiceStatsPlugin(collectd, PLUGIN_NAME,
|
|
disable_check_metric=True)
|
|
|
|
|
|
def config_callback(conf):
|
|
plugin.config_callback(conf)
|
|
|
|
|
|
def notification_callback(notification):
|
|
plugin.notification_callback(notification)
|
|
|
|
|
|
def read_callback():
|
|
plugin.conditional_read_callback()
|
|
|
|
collectd.register_config(config_callback)
|
|
collectd.register_notification(notification_callback)
|
|
collectd.register_read(read_callback, INTERVAL)
|