95 lines
3.0 KiB
Python
95 lines
3.0 KiB
Python
#!/usr/bin/python
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# Copyright 2017 Mirantis, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# Collectd plugin for getting statistics from Cinder
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import collectd
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from collections import Counter
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from collections import defaultdict
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import re
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import collectd_openstack as openstack
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PLUGIN_NAME = 'cinder'
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INTERVAL = openstack.INTERVAL
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class CinderServiceStatsPlugin(openstack.CollectdPlugin):
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""" Class to report the statistics on Cinder services.
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state of workers broken down by state
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"""
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states = {'up': 0, 'down': 1, 'disabled': 2}
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cinder_re = re.compile('^cinder-')
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def __init__(self, *args, **kwargs):
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super(CinderServiceStatsPlugin, self).__init__(*args, **kwargs)
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self.plugin = PLUGIN_NAME
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self.interval = INTERVAL
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def itermetrics(self):
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# Get information of the state per service
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# State can be: 'up', 'down' or 'disabled'
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aggregated_workers = defaultdict(Counter)
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for worker in self.iter_workers('cinder'):
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host = worker['host'].split('.')[0]
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service = self.cinder_re.sub('', worker['service'])
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state = worker['state']
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aggregated_workers[service][state] += 1
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yield {
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'plugin_instance': 'cinder_service',
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'values': self.states[state],
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'meta': {'host': host, 'service': service, 'state': state},
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}
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for service in aggregated_workers:
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totalw = sum(aggregated_workers[service].values())
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for state in self.states:
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prct = (100.0 * aggregated_workers[service][state]) / totalw
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yield {
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'plugin_instance': 'cinder_services_percent',
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'values': prct,
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'meta': {'state': state, 'service': service}
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}
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yield {
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'plugin_instance': 'cinder_services',
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'values': aggregated_workers[service][state],
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'meta': {'state': state, 'service': service},
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}
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plugin = CinderServiceStatsPlugin(collectd, PLUGIN_NAME,
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disable_check_metric=True)
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def config_callback(conf):
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plugin.config_callback(conf)
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def notification_callback(notification):
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plugin.notification_callback(notification)
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def read_callback():
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plugin.conditional_read_callback()
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collectd.register_config(config_callback)
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collectd.register_notification(notification_callback)
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collectd.register_read(read_callback, INTERVAL)
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