693 lines
26 KiB
Python
693 lines
26 KiB
Python
#
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# Copyright 2012 eNovance <licensing@enovance.com>
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# Copyright 2012 Red Hat, Inc
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# Copyright 2014 Cisco Systems, Inc
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import abc
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import collections
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import monotonic
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from oslo_log import log
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import six
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import ceilometer
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from ceilometer.agent import plugin_base
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from ceilometer.compute import pollsters
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from ceilometer.compute.pollsters import util
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from ceilometer.compute.virt import inspector as virt_inspector
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from ceilometer.i18n import _
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from ceilometer import sample
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LOG = log.getLogger(__name__)
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DiskIOData = collections.namedtuple(
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'DiskIOData',
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'r_bytes r_requests w_bytes w_requests per_disk_requests polled_time',
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)
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DiskRateData = collections.namedtuple('DiskRateData',
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['read_bytes_rate',
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'read_requests_rate',
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'write_bytes_rate',
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'write_requests_rate',
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'per_disk_rate'])
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DiskLatencyData = collections.namedtuple('DiskLatencyData',
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['disk_latency',
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'per_disk_latency'])
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DiskIOPSData = collections.namedtuple('DiskIOPSData',
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['iops_count',
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'per_disk_iops'])
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DiskInfoData = collections.namedtuple('DiskInfoData',
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['capacity',
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'allocation',
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'physical',
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'per_disk_info'])
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@six.add_metaclass(abc.ABCMeta)
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class _Base(pollsters.BaseComputePollster):
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DISKIO_USAGE_MESSAGE = ' '.join(["DISKIO USAGE:",
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"%s %s:",
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"read-requests=%d",
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"read-bytes=%d",
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"write-requests=%d",
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"write-bytes=%d",
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"errors=%d",
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])
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CACHE_KEY_DISK = 'diskio'
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def _populate_cache(self, inspector, cache, instance):
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i_cache = cache.setdefault(self.CACHE_KEY_DISK, {})
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if instance.id not in i_cache:
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r_bytes = 0
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r_requests = 0
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w_bytes = 0
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w_requests = 0
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per_device_read_bytes = {}
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per_device_read_requests = {}
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per_device_write_bytes = {}
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per_device_write_requests = {}
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for disk, info in inspector.inspect_disks(instance):
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LOG.debug(self.DISKIO_USAGE_MESSAGE,
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instance, disk.device, info.read_requests,
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info.read_bytes, info.write_requests,
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info.write_bytes, info.errors)
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r_bytes += info.read_bytes
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r_requests += info.read_requests
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w_bytes += info.write_bytes
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w_requests += info.write_requests
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# per disk data
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per_device_read_bytes[disk.device] = info.read_bytes
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per_device_read_requests[disk.device] = info.read_requests
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per_device_write_bytes[disk.device] = info.write_bytes
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per_device_write_requests[disk.device] = info.write_requests
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per_device_requests = {
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'read_bytes': per_device_read_bytes,
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'read_requests': per_device_read_requests,
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'write_bytes': per_device_write_bytes,
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'write_requests': per_device_write_requests,
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}
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polled_time = monotonic.monotonic()
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i_cache[instance.id] = DiskIOData(
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r_bytes=r_bytes,
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r_requests=r_requests,
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w_bytes=w_bytes,
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w_requests=w_requests,
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per_disk_requests=per_device_requests,
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polled_time=polled_time
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)
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return i_cache[instance.id]
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@abc.abstractmethod
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def _get_samples(instance, c_data):
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"""Return one or more Sample."""
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def _get_sample_read_and_write(self, instance, _name, _unit, c_data,
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_volume, _metadata):
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"""Read / write Pollster and return one Sample"""
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return [util.make_sample_from_instance(
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self.conf,
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instance,
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name=_name,
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type=sample.TYPE_CUMULATIVE,
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unit=_unit,
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volume=getattr(c_data, _volume),
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additional_metadata={
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'device': c_data.per_disk_requests[_metadata].keys()},
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monotonic_time=c_data.polled_time,
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)]
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def _get_samples_per_device(self, c_data, _attr, instance, _name, _unit):
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"""Return one or more Samples for meter 'disk.device.*'"""
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return self._get_samples_per_devices(c_data.per_disk_requests[_attr],
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instance, _name,
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sample.TYPE_CUMULATIVE, _unit,
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c_data.polled_time)
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def get_samples(self, manager, cache, resources):
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for instance in resources:
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instance_name = util.instance_name(instance)
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try:
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c_data = self._populate_cache(
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self.inspector,
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cache,
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instance,
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)
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for s in self._get_samples(instance, c_data):
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yield s
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except virt_inspector.InstanceNotFoundException as err:
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# Instance was deleted while getting samples. Ignore it.
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LOG.debug('Exception while getting samples %s', err)
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except virt_inspector.InstanceShutOffException as e:
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LOG.debug('Instance %(instance_id)s was shut off while '
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'getting samples of %(pollster)s: %(exc)s',
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{'instance_id': instance.id,
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'pollster': self.__class__.__name__, 'exc': e})
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except ceilometer.NotImplementedError:
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# Selected inspector does not implement this pollster.
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LOG.debug('%(inspector)s does not provide data for '
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' %(pollster)s',
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{'inspector': self.inspector.__class__.__name__,
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'pollster': self.__class__.__name__})
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raise plugin_base.PollsterPermanentError(resources)
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except Exception as err:
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LOG.exception(_('Ignoring instance %(name)s: %(error)s'),
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{'name': instance_name, 'error': err})
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class ReadRequestsPollster(_Base):
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def _get_samples(self, instance, c_data):
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return self._get_sample_read_and_write(
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instance, 'disk.read.requests', 'request', c_data,
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'r_requests', 'read_requests')
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class PerDeviceReadRequestsPollster(_Base):
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def _get_samples(self, instance, c_data):
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return self._get_samples_per_device(
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c_data, 'read_requests', instance,
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'disk.device.read.requests', 'request')
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class ReadBytesPollster(_Base):
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def _get_samples(self, instance, c_data):
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return self._get_sample_read_and_write(
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instance, 'disk.read.bytes', 'B', c_data,
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'r_bytes', 'read_bytes')
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class PerDeviceReadBytesPollster(_Base):
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def _get_samples(self, instance, c_data):
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return self._get_samples_per_device(
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c_data, 'read_bytes', instance,
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'disk.device.read.bytes', 'B')
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class WriteRequestsPollster(_Base):
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def _get_samples(self, instance, c_data):
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return self._get_sample_read_and_write(
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instance, 'disk.write.requests', 'request',
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c_data, 'w_requests', 'write_requests')
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class PerDeviceWriteRequestsPollster(_Base):
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def _get_samples(self, instance, c_data):
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return self._get_samples_per_device(
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c_data, 'write_requests', instance,
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'disk.device.write.requests', 'request')
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class WriteBytesPollster(_Base):
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def _get_samples(self, instance, c_data):
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return self._get_sample_read_and_write(
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instance, 'disk.write.bytes', 'B',
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c_data, 'w_bytes', 'write_bytes')
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class PerDeviceWriteBytesPollster(_Base):
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def _get_samples(self, instance, c_data):
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return self._get_samples_per_device(
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c_data, 'write_bytes', instance,
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'disk.device.write.bytes', 'B')
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@six.add_metaclass(abc.ABCMeta)
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class _DiskRatesPollsterBase(pollsters.BaseComputePollster):
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CACHE_KEY_DISK_RATE = 'diskio-rate'
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def _populate_cache(self, inspector, cache, instance):
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i_cache = cache.setdefault(self.CACHE_KEY_DISK_RATE, {})
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if instance.id not in i_cache:
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r_bytes_rate = 0
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r_requests_rate = 0
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w_bytes_rate = 0
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w_requests_rate = 0
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per_disk_r_bytes_rate = {}
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per_disk_r_requests_rate = {}
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per_disk_w_bytes_rate = {}
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per_disk_w_requests_rate = {}
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disk_rates = inspector.inspect_disk_rates(
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instance, self._inspection_duration)
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for disk, info in disk_rates:
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r_bytes_rate += info.read_bytes_rate
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r_requests_rate += info.read_requests_rate
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w_bytes_rate += info.write_bytes_rate
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w_requests_rate += info.write_requests_rate
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per_disk_r_bytes_rate[disk.device] = info.read_bytes_rate
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per_disk_r_requests_rate[disk.device] = info.read_requests_rate
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per_disk_w_bytes_rate[disk.device] = info.write_bytes_rate
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per_disk_w_requests_rate[disk.device] = (
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info.write_requests_rate)
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per_disk_rate = {
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'read_bytes_rate': per_disk_r_bytes_rate,
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'read_requests_rate': per_disk_r_requests_rate,
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'write_bytes_rate': per_disk_w_bytes_rate,
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'write_requests_rate': per_disk_w_requests_rate,
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}
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i_cache[instance.id] = DiskRateData(
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r_bytes_rate,
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r_requests_rate,
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w_bytes_rate,
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w_requests_rate,
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per_disk_rate
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)
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return i_cache[instance.id]
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@abc.abstractmethod
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def _get_samples(self, instance, disk_rates_info):
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"""Return one or more Sample."""
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def get_samples(self, manager, cache, resources):
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self._inspection_duration = self._record_poll_time()
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for instance in resources:
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try:
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disk_rates_info = self._populate_cache(
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self.inspector,
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cache,
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instance,
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)
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for disk_rate in self._get_samples(instance, disk_rates_info):
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yield disk_rate
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except virt_inspector.InstanceNotFoundException as err:
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# Instance was deleted while getting samples. Ignore it.
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LOG.debug('Exception while getting samples %s', err)
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except ceilometer.NotImplementedError:
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# Selected inspector does not implement this pollster.
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LOG.debug('%(inspector)s does not provide data for '
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' %(pollster)s',
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{'inspector': self.inspector.__class__.__name__,
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'pollster': self.__class__.__name__})
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raise plugin_base.PollsterPermanentError(resources)
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except Exception as err:
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instance_name = util.instance_name(instance)
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LOG.exception(_('Ignoring instance %(name)s: %(error)s'),
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{'name': instance_name, 'error': err})
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def _get_samples_per_device(self, disk_rates_info, _attr, instance,
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_name, _unit):
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"""Return one or more Samples for meter 'disk.device.*'."""
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return self._get_samples_per_devices(
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disk_rates_info.per_disk_rate[_attr],
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instance, _name, sample.TYPE_GAUGE, _unit)
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def _get_sample_read_and_write(self, instance, _name, _unit, _element,
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_attr1, _attr2):
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"""Read / write Pollster and return one Sample"""
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return [util.make_sample_from_instance(
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self.conf,
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instance,
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name=_name,
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type=sample.TYPE_GAUGE,
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unit=_unit,
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volume=getattr(_element, _attr1),
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additional_metadata={
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'device': getattr(_element, _attr2)[_attr1].keys()},
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)]
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class ReadBytesRatePollster(_DiskRatesPollsterBase):
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def _get_samples(self, instance, disk_rates_info):
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return self._get_sample_read_and_write(
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instance, 'disk.read.bytes.rate', 'B/s', disk_rates_info,
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'read_bytes_rate', 'per_disk_rate')
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class PerDeviceReadBytesRatePollster(_DiskRatesPollsterBase):
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def _get_samples(self, instance, disk_rates_info):
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return self._get_samples_per_device(
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disk_rates_info, 'read_bytes_rate', instance,
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'disk.device.read.bytes.rate', 'B/s')
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class ReadRequestsRatePollster(_DiskRatesPollsterBase):
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def _get_samples(self, instance, disk_rates_info):
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return self._get_sample_read_and_write(
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instance, 'disk.read.requests.rate', 'request/s', disk_rates_info,
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'read_requests_rate', 'per_disk_rate')
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class PerDeviceReadRequestsRatePollster(_DiskRatesPollsterBase):
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def _get_samples(self, instance, disk_rates_info):
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return self._get_samples_per_device(
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disk_rates_info, 'read_requests_rate', instance,
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'disk.device.read.requests.rate', 'request/s')
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class WriteBytesRatePollster(_DiskRatesPollsterBase):
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def _get_samples(self, instance, disk_rates_info):
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return self._get_sample_read_and_write(
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instance, 'disk.write.bytes.rate', 'B/s', disk_rates_info,
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'write_bytes_rate', 'per_disk_rate')
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class PerDeviceWriteBytesRatePollster(_DiskRatesPollsterBase):
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def _get_samples(self, instance, disk_rates_info):
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return self._get_samples_per_device(
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disk_rates_info, 'write_bytes_rate', instance,
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'disk.device.write.bytes.rate', 'B/s')
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class WriteRequestsRatePollster(_DiskRatesPollsterBase):
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def _get_samples(self, instance, disk_rates_info):
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return self._get_sample_read_and_write(
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instance, 'disk.write.requests.rate', 'request/s',
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disk_rates_info, 'write_requests_rate', 'per_disk_rate')
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class PerDeviceWriteRequestsRatePollster(_DiskRatesPollsterBase):
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def _get_samples(self, instance, disk_rates_info):
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return self._get_samples_per_device(
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disk_rates_info, 'write_requests_rate', instance,
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'disk.device.write.requests.rate', 'request/s')
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@six.add_metaclass(abc.ABCMeta)
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class _DiskLatencyPollsterBase(pollsters.BaseComputePollster):
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CACHE_KEY_DISK_LATENCY = 'disk-latency'
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def _populate_cache(self, inspector, cache, instance):
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return self._populate_cache_create(
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cache.setdefault(self.CACHE_KEY_DISK_LATENCY, {}),
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instance, inspector, DiskLatencyData,
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'inspect_disk_latency', 'disk_latency')
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@abc.abstractmethod
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def _get_samples(self, instance, disk_rates_info):
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"""Return one or more Sample."""
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def get_samples(self, manager, cache, resources):
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for instance in resources:
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try:
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disk_latency_info = self._populate_cache(
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self.inspector,
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cache,
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instance,
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)
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for disk_latency in self._get_samples(instance,
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disk_latency_info):
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yield disk_latency
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except virt_inspector.InstanceNotFoundException as err:
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# Instance was deleted while getting samples. Ignore it.
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LOG.debug('Exception while getting samples %s', err)
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except ceilometer.NotImplementedError:
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# Selected inspector does not implement this pollster.
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LOG.debug('%(inspector)s does not provide data for '
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' %(pollster)s',
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{'inspector': self.inspector.__class__.__name__,
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'pollster': self.__class__.__name__})
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raise plugin_base.PollsterPermanentError(resources)
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except Exception as err:
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instance_name = util.instance_name(instance)
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LOG.exception(_('Ignoring instance %(name)s: %(error)s'),
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{'name': instance_name, 'error': err})
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class DiskLatencyPollster(_DiskLatencyPollsterBase):
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def _get_samples(self, instance, disk_latency_info):
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return [util.make_sample_from_instance(
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self.conf,
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instance,
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name='disk.latency',
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type=sample.TYPE_GAUGE,
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unit='ms',
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volume=disk_latency_info.disk_latency / 1000
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)]
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class PerDeviceDiskLatencyPollster(_DiskLatencyPollsterBase):
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def _get_samples(self, instance, disk_latency_info):
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samples = []
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for disk, value in six.iteritems(disk_latency_info.per_disk_latency[
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'disk_latency']):
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samples.append(util.make_sample_from_instance(
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self.conf,
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instance,
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name='disk.device.latency',
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type=sample.TYPE_GAUGE,
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unit='ms',
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volume=value / 1000,
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resource_id="%s-%s" % (instance.id, disk),
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additional_metadata={'disk_name': disk},
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))
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return samples
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class _DiskIOPSPollsterBase(pollsters.BaseComputePollster):
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CACHE_KEY_DISK_IOPS = 'disk-iops'
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def _populate_cache(self, inspector, cache, instance):
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return self._populate_cache_create(
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cache.setdefault(self.CACHE_KEY_DISK_IOPS, {}),
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instance, inspector, DiskIOPSData,
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'inspect_disk_iops', 'iops_count')
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@abc.abstractmethod
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def _get_samples(self, instance, disk_rates_info):
|
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"""Return one or more Sample."""
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|
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def get_samples(self, manager, cache, resources):
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for instance in resources:
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try:
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disk_iops_info = self._populate_cache(
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self.inspector,
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cache,
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instance,
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)
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for disk_iops in self._get_samples(instance,
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disk_iops_info):
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yield disk_iops
|
|
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('%(inspector)s does not provide data for '
|
|
'%(pollster)s',
|
|
{'inspector': self.inspector.__class__.__name__,
|
|
'pollster': self.__class__.__name__})
|
|
raise plugin_base.PollsterPermanentError(resources)
|
|
except Exception as err:
|
|
instance_name = util.instance_name(instance)
|
|
LOG.exception(_('Ignoring instance %(name)s: %(error)s'),
|
|
{'name': instance_name, 'error': err})
|
|
|
|
|
|
class DiskIOPSPollster(_DiskIOPSPollsterBase):
|
|
|
|
def _get_samples(self, instance, disk_iops_info):
|
|
return [util.make_sample_from_instance(
|
|
self.conf,
|
|
instance,
|
|
name='disk.iops',
|
|
type=sample.TYPE_GAUGE,
|
|
unit='count/s',
|
|
volume=disk_iops_info.iops_count
|
|
)]
|
|
|
|
|
|
class PerDeviceDiskIOPSPollster(_DiskIOPSPollsterBase):
|
|
|
|
def _get_samples(self, instance, disk_iops_info):
|
|
samples = []
|
|
for disk, value in six.iteritems(disk_iops_info.per_disk_iops[
|
|
'iops_count']):
|
|
samples.append(util.make_sample_from_instance(
|
|
self.conf,
|
|
instance,
|
|
name='disk.device.iops',
|
|
type=sample.TYPE_GAUGE,
|
|
unit='count/s',
|
|
volume=value,
|
|
resource_id="%s-%s" % (instance.id, disk),
|
|
additional_metadata={'disk_name': disk},
|
|
))
|
|
return samples
|
|
|
|
|
|
@six.add_metaclass(abc.ABCMeta)
|
|
class _DiskInfoPollsterBase(pollsters.BaseComputePollster):
|
|
|
|
CACHE_KEY_DISK_INFO = 'diskinfo'
|
|
|
|
def _populate_cache(self, inspector, cache, instance):
|
|
i_cache = cache.setdefault(self.CACHE_KEY_DISK_INFO, {})
|
|
if instance.id not in i_cache:
|
|
all_capacity = 0
|
|
all_allocation = 0
|
|
all_physical = 0
|
|
per_disk_capacity = {}
|
|
per_disk_allocation = {}
|
|
per_disk_physical = {}
|
|
disk_info = inspector.inspect_disk_info(
|
|
instance)
|
|
for disk, info in disk_info:
|
|
all_capacity += info.capacity
|
|
all_allocation += info.allocation
|
|
all_physical += info.physical
|
|
|
|
per_disk_capacity[disk.device] = info.capacity
|
|
per_disk_allocation[disk.device] = info.allocation
|
|
per_disk_physical[disk.device] = info.physical
|
|
per_disk_info = {
|
|
'capacity': per_disk_capacity,
|
|
'allocation': per_disk_allocation,
|
|
'physical': per_disk_physical,
|
|
}
|
|
i_cache[instance.id] = DiskInfoData(
|
|
all_capacity,
|
|
all_allocation,
|
|
all_physical,
|
|
per_disk_info
|
|
)
|
|
return i_cache[instance.id]
|
|
|
|
@abc.abstractmethod
|
|
def _get_samples(self, instance, disk_info):
|
|
"""Return one or more Sample."""
|
|
|
|
def _get_samples_per_device(self, disk_info, _attr, instance, _name):
|
|
"""Return one or more Samples for meter 'disk.device.*'."""
|
|
samples = []
|
|
for disk, value in six.iteritems(disk_info.per_disk_info[_attr]):
|
|
samples.append(util.make_sample_from_instance(
|
|
self.conf,
|
|
instance,
|
|
name=_name,
|
|
type=sample.TYPE_GAUGE,
|
|
unit='B',
|
|
volume=value,
|
|
resource_id="%s-%s" % (instance.id, disk),
|
|
additional_metadata={'disk_name': disk},
|
|
))
|
|
return samples
|
|
|
|
def _get_samples_task(self, instance, _name, disk_info, _attr1, _attr2):
|
|
"""Return one or more Samples for meter 'disk.task.*'."""
|
|
return [util.make_sample_from_instance(
|
|
self.conf,
|
|
instance,
|
|
name=_name,
|
|
type=sample.TYPE_GAUGE,
|
|
unit='B',
|
|
volume=getattr(disk_info, _attr1),
|
|
additional_metadata={
|
|
'device': disk_info.per_disk_info[_attr2].keys()},
|
|
)]
|
|
|
|
def get_samples(self, manager, cache, resources):
|
|
for instance in resources:
|
|
try:
|
|
disk_size_info = self._populate_cache(
|
|
self.inspector,
|
|
cache,
|
|
instance,
|
|
)
|
|
for disk_info in self._get_samples(instance, disk_size_info):
|
|
yield disk_info
|
|
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('%(inspector)s does not provide data for '
|
|
' %(pollster)s',
|
|
{'inspector': self.inspector.__class__.__name__,
|
|
'pollster': self.__class__.__name__})
|
|
raise plugin_base.PollsterPermanentError(resources)
|
|
except Exception as err:
|
|
instance_name = util.instance_name(instance)
|
|
LOG.exception(_('Ignoring instance %(name)s '
|
|
'(%(instance_id)s) : %(error)s') % (
|
|
{'name': instance_name,
|
|
'instance_id': instance.id,
|
|
'error': err}))
|
|
|
|
|
|
class CapacityPollster(_DiskInfoPollsterBase):
|
|
|
|
def _get_samples(self, instance, disk_info):
|
|
return self._get_samples_task(
|
|
instance, 'disk.capacity', disk_info,
|
|
'capacity', 'capacity')
|
|
|
|
|
|
class PerDeviceCapacityPollster(_DiskInfoPollsterBase):
|
|
|
|
def _get_samples(self, instance, disk_info):
|
|
return self._get_samples_per_device(
|
|
disk_info, 'capacity', instance, 'disk.device.capacity')
|
|
|
|
|
|
class AllocationPollster(_DiskInfoPollsterBase):
|
|
|
|
def _get_samples(self, instance, disk_info):
|
|
return self._get_samples_task(
|
|
instance, 'disk.allocation', disk_info,
|
|
'allocation', 'allocation')
|
|
|
|
|
|
class PerDeviceAllocationPollster(_DiskInfoPollsterBase):
|
|
|
|
def _get_samples(self, instance, disk_info):
|
|
return self._get_samples_per_device(
|
|
disk_info, 'allocation', instance, 'disk.device.allocation')
|
|
|
|
|
|
class PhysicalPollster(_DiskInfoPollsterBase):
|
|
|
|
def _get_samples(self, instance, disk_info):
|
|
return self._get_samples_task(
|
|
instance, 'disk.usage', disk_info,
|
|
'physical', 'physical')
|
|
|
|
|
|
class PerDevicePhysicalPollster(_DiskInfoPollsterBase):
|
|
|
|
def _get_samples(self, instance, disk_info):
|
|
return self._get_samples_per_device(
|
|
disk_info, 'physical', instance, 'disk.device.usage')
|