a10773e413
Add a dictionary as a data cache for the pollsters, creating it outside of the loop where they are invoked and passing it to them. Future changesets will include changes to the pollsters to put data in the cache. blueprint one-meter-per-plugin Change-Id: Ie65526dfe65a8880ad8683b62fae62f8e7f9e69b Signed-off-by: Doug Hellmann <doug.hellmann@dreamhost.com>
84 lines
2.9 KiB
Python
84 lines
2.9 KiB
Python
# -*- encoding: utf-8 -*-
|
|
#
|
|
# Copyright © 2012-2013 eNovance <licensing@enovance.com>
|
|
#
|
|
# Author: Julien Danjou <julien@danjou.info>
|
|
#
|
|
# 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.
|
|
|
|
from keystoneclient.v2_0 import client as ksclient
|
|
from oslo.config import cfg
|
|
from stevedore import extension
|
|
|
|
from ceilometer import agent
|
|
from ceilometer.openstack.common import log
|
|
from ceilometer.openstack.common import service as os_service
|
|
from ceilometer.openstack.common.rpc import service as rpc_service
|
|
from ceilometer import service
|
|
|
|
cfg.CONF.import_group('service_credentials', 'ceilometer.service')
|
|
|
|
LOG = log.getLogger(__name__)
|
|
|
|
|
|
class PollingTask(agent.PollingTask):
|
|
def poll_and_publish(self):
|
|
"""Tasks to be run at a periodic interval."""
|
|
with self.publish_context as publisher:
|
|
# TODO(yjiang5) passing counters into get_counters to avoid
|
|
# polling all counters one by one
|
|
cache = {}
|
|
for pollster in self.pollsters:
|
|
try:
|
|
LOG.info("Polling pollster %s", pollster.name)
|
|
counters = list(pollster.obj.get_counters(
|
|
self.manager,
|
|
cache,
|
|
))
|
|
publisher(counters)
|
|
except Exception as err:
|
|
LOG.warning('Continue after error from %s: %s',
|
|
pollster.name, err)
|
|
LOG.exception(err)
|
|
|
|
|
|
class AgentManager(agent.AgentManager):
|
|
|
|
def __init__(self):
|
|
super(AgentManager, self).__init__(
|
|
extension.ExtensionManager(
|
|
namespace='ceilometer.poll.central',
|
|
invoke_on_load=True,
|
|
)
|
|
)
|
|
|
|
def create_polling_task(self):
|
|
return PollingTask(self)
|
|
|
|
def interval_task(self, task):
|
|
self.keystone = ksclient.Client(
|
|
username=cfg.CONF.service_credentials.os_username,
|
|
password=cfg.CONF.service_credentials.os_password,
|
|
tenant_id=cfg.CONF.service_credentials.os_tenant_id,
|
|
tenant_name=cfg.CONF.service_credentials.os_tenant_name,
|
|
auth_url=cfg.CONF.service_credentials.os_auth_url)
|
|
|
|
super(AgentManager, self).interval_task(task)
|
|
|
|
|
|
def agent_central():
|
|
service.prepare_service()
|
|
os_service.launch(rpc_service.Service(cfg.CONF.host,
|
|
'ceilometer.agent.central',
|
|
AgentManager())).wait()
|