Source code for ceilometer.compute.pollsters.cpu

#
# 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.


import monotonic
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( self.conf, instance, name='cpu', type=sample.TYPE_CUMULATIVE, unit='ns', volume=cpu_info.time, additional_metadata=cpu_num, monotonic_time=monotonic.monotonic() ) 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( self.conf, 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( self.conf, 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})