7aeefa0e99
Updates the CPU/Net/Disk compute pollsters so we handle instance not found exceptions. These types of exceptions may occur when an instance has been deleted during sample processing. Fixes LP Bug #1223098. Change-Id: Icc8a79f8c23276b68aa27e758872ff80ad484061
146 lines
4.6 KiB
Python
146 lines
4.6 KiB
Python
# -*- encoding: utf-8 -*-
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#
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# Copyright © 2012 eNovance <licensing@enovance.com>
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# Copyright © 2012 Red Hat, Inc
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#
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# Author: Julien Danjou <julien@danjou.info>
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# Author: Eoghan Glynn <eglynn@redhat.com>
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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 copy
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from ceilometer import sample
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from ceilometer.compute import plugin
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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.openstack.common import log
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from ceilometer.openstack.common import timeutils
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LOG = log.getLogger(__name__)
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class _Base(plugin.ComputePollster):
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NET_USAGE_MESSAGE = ' '.join(["NETWORK USAGE:", "%s %s:", "read-bytes=%d",
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"write-bytes=%d"])
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@staticmethod
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def make_vnic_sample(instance, name, type, unit, volume, vnic_data):
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metadata = copy.copy(vnic_data)
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resource_metadata = dict(zip(metadata._fields, metadata))
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resource_metadata['instance_id'] = instance.id
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resource_metadata['instance_type'] = \
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instance.flavor['id'] if instance.flavor else None
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if vnic_data.fref is not None:
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rid = vnic_data.fref
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else:
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instance_name = util.instance_name(instance)
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rid = "%s-%s-%s" % (instance_name, instance.id, vnic_data.name)
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return sample.Sample(
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name=name,
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type=type,
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unit=unit,
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volume=volume,
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user_id=instance.user_id,
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project_id=instance.tenant_id,
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resource_id=rid,
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timestamp=timeutils.isotime(),
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resource_metadata=resource_metadata
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)
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CACHE_KEY_VNIC = 'vnics'
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def _get_vnics_for_instance(self, cache, inspector, instance_name):
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i_cache = cache.setdefault(self.CACHE_KEY_VNIC, {})
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if instance_name not in i_cache:
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i_cache[instance_name] = list(
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inspector.inspect_vnics(instance_name)
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)
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return i_cache[instance_name]
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def get_samples(self, manager, cache, instance):
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instance_name = util.instance_name(instance)
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LOG.info('checking instance %s', instance.id)
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try:
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vnics = self._get_vnics_for_instance(
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cache,
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manager.inspector,
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instance_name,
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)
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for vnic, info in vnics:
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LOG.info(self.NET_USAGE_MESSAGE, instance_name,
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vnic.name, info.rx_bytes, info.tx_bytes)
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yield self._get_sample(instance, vnic, info)
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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 Exception as err:
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LOG.warning('Ignoring instance %s: %s',
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instance_name, err)
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LOG.exception(err)
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class IncomingBytesPollster(_Base):
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def _get_sample(self, instance, vnic, info):
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return self.make_vnic_sample(
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instance,
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name='network.incoming.bytes',
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type=sample.TYPE_CUMULATIVE,
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unit='B',
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volume=info.rx_bytes,
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vnic_data=vnic,
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)
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class IncomingPacketsPollster(_Base):
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def _get_sample(self, instance, vnic, info):
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return self.make_vnic_sample(
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instance,
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name='network.incoming.packets',
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type=sample.TYPE_CUMULATIVE,
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unit='packet',
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volume=info.rx_packets,
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vnic_data=vnic,
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)
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class OutgoingBytesPollster(_Base):
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def _get_sample(self, instance, vnic, info):
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return self.make_vnic_sample(
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instance,
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name='network.outgoing.bytes',
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type=sample.TYPE_CUMULATIVE,
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unit='B',
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volume=info.tx_bytes,
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vnic_data=vnic,
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)
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class OutgoingPacketsPollster(_Base):
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def _get_sample(self, instance, vnic, info):
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return self.make_vnic_sample(
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instance,
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name='network.outgoing.packets',
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type=sample.TYPE_CUMULATIVE,
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unit='packet',
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volume=info.tx_packets,
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vnic_data=vnic,
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)
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