#
# Copyright 2012 eNovance <licensing@enovance.com>
# Copyright 2012 Red Hat, 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.
from oslo_log import log
import ceilometer
from ceilometer.agent import plugin_base
from ceilometer.compute import pollsters
from ceilometer.compute.pollsters import util
from ceilometer.compute.virt import inspector as virt_inspector
from ceilometer.i18n import _
from ceilometer import sample
LOG = log.getLogger(__name__)
[docs]class CPUPollster(pollsters.BaseComputePollster):
[docs] def get_samples(self, manager, cache, resources):
for instance in resources:
LOG.debug('checking instance %s', instance.id)
try:
cpu_info = self.inspector.inspect_cpus(instance)
LOG.debug("CPUTIME USAGE: %(instance)s %(time)d",
{'instance': instance,
'time': cpu_info.time})
cpu_num = {'cpu_number': cpu_info.number}
yield util.make_sample_from_instance(
instance,
name='cpu',
type=sample.TYPE_CUMULATIVE,
unit='ns',
volume=cpu_info.time,
additional_metadata=cpu_num,
)
except virt_inspector.InstanceNotFoundException as err:
# Instance was deleted while getting samples. Ignore it.
LOG.debug('Exception while getting samples %s', err)
except virt_inspector.InstanceShutOffException as e:
LOG.debug('Instance %(instance_id)s was shut off while '
'getting samples of %(pollster)s: %(exc)s',
{'instance_id': instance.id,
'pollster': self.__class__.__name__, 'exc': e})
except ceilometer.NotImplementedError:
# Selected inspector does not implement this pollster.
LOG.debug('Obtaining CPU time is not implemented for %s',
self.inspector.__class__.__name__)
raise plugin_base.PollsterPermanentError(resources)
except Exception as err:
LOG.exception(_('could not get CPU time for %(id)s: %(e)s'),
{'id': instance.id, 'e': err})
[docs]class CPUUtilPollster(pollsters.BaseComputePollster):
[docs] def get_samples(self, manager, cache, resources):
self._inspection_duration = self._record_poll_time()
for instance in resources:
LOG.debug('Checking CPU util for instance %s', instance.id)
try:
cpu_info = self.inspector.inspect_cpu_util(
instance, self._inspection_duration)
LOG.debug("CPU UTIL: %(instance)s %(util)d",
{'instance': instance,
'util': cpu_info.util})
yield util.make_sample_from_instance(
instance,
name='cpu_util',
type=sample.TYPE_GAUGE,
unit='%',
volume=cpu_info.util,
)
except virt_inspector.InstanceNotFoundException as err:
# Instance was deleted while getting samples. Ignore it.
LOG.debug('Exception while getting samples %s', err)
except ceilometer.NotImplementedError:
# Selected inspector does not implement this pollster.
LOG.debug('Obtaining CPU Util is not implemented for %s',
self.inspector.__class__.__name__)
raise plugin_base.PollsterPermanentError(resources)
except Exception as err:
LOG.exception(_('Could not get CPU Util for %(id)s: %(e)s'),
{'id': instance.id, 'e': err})
[docs]class CPUL3CachePollster(pollsters.BaseComputePollster):
[docs] def get_samples(self, manager, cache, resources):
for instance in resources:
LOG.debug(_('checking cache usage for instance %s'), instance.id)
try:
cpu_cache = self.inspector.inspect_cpu_l3_cache(instance)
LOG.debug(_("CPU cache size: %(id)s %(cache_size)d"),
({'id': instance.id,
'cache_size': cpu_cache.l3_cache_usage}))
yield util.make_sample_from_instance(
instance,
name='cpu_l3_cache',
type=sample.TYPE_GAUGE,
unit='B',
volume=cpu_cache.l3_cache_usage,
)
except virt_inspector.InstanceNotFoundException as err:
# Instance was deleted while getting samples. Ignore it.
LOG.debug('Exception while getting samples %s', err)
except virt_inspector.NoDataException as e:
LOG.warning(('Cannot inspect data of %(pollster)s for '
'%(instance_id)s, non-fatal reason: %(exc)s'),
{'pollster': self.__class__.__name__,
'instance_id': instance.id, 'exc': e})
raise plugin_base.PollsterPermanentError(resources)
except ceilometer.NotImplementedError:
# Selected inspector does not implement this pollster.
LOG.debug('Obtaining cache usage is not implemented for %s',
self.inspector.__class__.__name__)
raise plugin_base.PollsterPermanentError(resources)
except Exception as err:
LOG.exception(_('Could not get cache usage for %(id)s: %(e)s'),
{'id': instance.id, 'e': err})