193 lines
7.8 KiB
Python
193 lines
7.8 KiB
Python
# Copyright 2014 Intel
|
|
#
|
|
# 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.
|
|
"""Implementation of Inspector abstraction for XenAPI."""
|
|
|
|
from os_xenapi.client import session as xenapi_session
|
|
from os_xenapi.client import XenAPI
|
|
from oslo_config import cfg
|
|
from oslo_log import log as logging
|
|
from oslo_utils import units
|
|
|
|
from ceilometer.compute.pollsters import util
|
|
from ceilometer.compute.virt import inspector as virt_inspector
|
|
from ceilometer.i18n import _
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
opt_group = cfg.OptGroup(name='xenapi',
|
|
title='Options for XenAPI')
|
|
|
|
OPTS = [
|
|
cfg.StrOpt('connection_url',
|
|
deprecated_for_removal=True,
|
|
deprecated_reason='Support for XenServer/Xen Cloud Platform '
|
|
'has been deprecated',
|
|
help='URL for connection to XenServer/Xen Cloud Platform.'),
|
|
cfg.StrOpt('connection_username',
|
|
default='root',
|
|
deprecated_for_removal=True,
|
|
deprecated_reason='Support for XenServer/Xen Cloud Platform '
|
|
'has been deprecated',
|
|
help='Username for connection to XenServer/Xen Cloud '
|
|
'Platform.'),
|
|
cfg.StrOpt('connection_password',
|
|
deprecated_for_removal=True,
|
|
deprecated_reason='Support for XenServer/Xen Cloud Platform '
|
|
'has been deprecated',
|
|
help='Password for connection to XenServer/Xen Cloud Platform.',
|
|
secret=True),
|
|
]
|
|
|
|
|
|
class XenapiException(virt_inspector.InspectorException):
|
|
pass
|
|
|
|
|
|
def get_api_session(conf):
|
|
url = conf.xenapi.connection_url
|
|
username = conf.xenapi.connection_username
|
|
password = conf.xenapi.connection_password
|
|
if not url or password is None:
|
|
raise XenapiException(_('Must specify connection_url, and '
|
|
'connection_password to use'))
|
|
|
|
try:
|
|
session = xenapi_session.XenAPISession(url, username, password,
|
|
originator="ceilometer")
|
|
LOG.debug("XenAPI session is created successfully, %s", session)
|
|
except XenAPI.Failure as e:
|
|
msg = _("Could not connect to XenAPI: %s") % e.details[0]
|
|
raise XenapiException(msg)
|
|
return session
|
|
|
|
|
|
class XenapiInspector(virt_inspector.Inspector):
|
|
|
|
def __init__(self, conf):
|
|
super(XenapiInspector, self).__init__(conf)
|
|
self.session = get_api_session(self.conf)
|
|
|
|
def _lookup_by_name(self, instance_name):
|
|
vm_refs = self.session.VM.get_by_name_label(instance_name)
|
|
n = len(vm_refs)
|
|
if n == 0:
|
|
raise virt_inspector.InstanceNotFoundException(
|
|
_('VM %s not found in XenServer') % instance_name)
|
|
elif n > 1:
|
|
raise XenapiException(
|
|
_('Multiple VM %s found in XenServer') % instance_name)
|
|
else:
|
|
return vm_refs[0]
|
|
|
|
def inspect_instance(self, instance, duration):
|
|
instance_name = util.instance_name(instance)
|
|
vm_ref = self._lookup_by_name(instance_name)
|
|
cpu_util = self._get_cpu_usage(vm_ref, instance_name)
|
|
memory_usage = self._get_memory_usage(vm_ref)
|
|
LOG.debug("inspect_instance, cpu_util: %(cpu)s, memory_usage: %(mem)s",
|
|
{'cpu': cpu_util, 'mem': memory_usage}, instance=instance)
|
|
return virt_inspector.InstanceStats(cpu_util=cpu_util,
|
|
memory_usage=memory_usage)
|
|
|
|
def _get_cpu_usage(self, vm_ref, instance_name):
|
|
vcpus_number = int(self.session.VM.get_VCPUs_max(vm_ref))
|
|
if vcpus_number <= 0:
|
|
msg = _("Could not get VM %s CPU number") % instance_name
|
|
raise XenapiException(msg)
|
|
cpu_util = 0.0
|
|
for index in range(vcpus_number):
|
|
cpu_util += float(self.session.VM.query_data_source(
|
|
vm_ref, "cpu%d" % index))
|
|
return cpu_util / int(vcpus_number) * 100
|
|
|
|
def _get_memory_usage(self, vm_ref):
|
|
total_mem = float(self.session.VM.query_data_source(vm_ref, "memory"))
|
|
try:
|
|
free_mem = float(self.session.VM.query_data_source(
|
|
vm_ref, "memory_internal_free"))
|
|
except XenAPI.Failure:
|
|
# If PV tools is not installed in the guest instance, it's
|
|
# impossible to get free memory. So give it a default value
|
|
# as 0.
|
|
free_mem = 0
|
|
# memory provided from XenServer is in Bytes;
|
|
# memory_internal_free provided from XenServer is in KB,
|
|
# converting it to MB.
|
|
return (total_mem - free_mem * units.Ki) / units.Mi
|
|
|
|
def inspect_vnics(self, instance, duration):
|
|
instance_name = util.instance_name(instance)
|
|
vm_ref = self._lookup_by_name(instance_name)
|
|
dom_id = self.session.VM.get_domid(vm_ref)
|
|
vif_refs = self.session.VM.get_VIFs(vm_ref)
|
|
bw_all = self.session.call_plugin_serialized('bandwidth',
|
|
'fetch_all_bandwidth')
|
|
LOG.debug("inspect_vnics, all bandwidth: %s", bw_all,
|
|
instance=instance)
|
|
|
|
for vif_ref in vif_refs:
|
|
vif_rec = self.session.VIF.get_record(vif_ref)
|
|
|
|
bw_vif = bw_all[dom_id][vif_rec['device']]
|
|
|
|
# TODO(jianghuaw): Currently the plugin can only support
|
|
# rx_bytes and tx_bytes, so temporarily set others as -1.
|
|
yield virt_inspector.InterfaceStats(
|
|
name=vif_rec['uuid'],
|
|
mac=vif_rec['MAC'],
|
|
fref=None,
|
|
parameters=None,
|
|
rx_bytes=bw_vif['bw_in'], rx_packets=-1, rx_drop=-1,
|
|
rx_errors=-1, tx_bytes=bw_vif['bw_out'], tx_packets=-1,
|
|
tx_drop=-1, tx_errors=-1, rx_bytes_delta=-1,
|
|
tx_bytes_delta=-1)
|
|
|
|
def inspect_vnic_rates(self, instance, duration):
|
|
instance_name = util.instance_name(instance)
|
|
vm_ref = self._lookup_by_name(instance_name)
|
|
vif_refs = self.session.VM.get_VIFs(vm_ref)
|
|
for vif_ref in vif_refs:
|
|
vif_rec = self.session.VIF.get_record(vif_ref)
|
|
|
|
rx_rate = float(self.session.VM.query_data_source(
|
|
vm_ref, "vif_%s_rx" % vif_rec['device']))
|
|
tx_rate = float(self.session.VM.query_data_source(
|
|
vm_ref, "vif_%s_tx" % vif_rec['device']))
|
|
|
|
yield virt_inspector.InterfaceRateStats(
|
|
name=vif_rec['uuid'],
|
|
mac=vif_rec['MAC'],
|
|
fref=None,
|
|
parameters=None,
|
|
rx_bytes_rate=rx_rate,
|
|
tx_bytes_rate=tx_rate)
|
|
|
|
def inspect_disk_rates(self, instance, duration):
|
|
instance_name = util.instance_name(instance)
|
|
vm_ref = self._lookup_by_name(instance_name)
|
|
vbd_refs = self.session.VM.get_VBDs(vm_ref)
|
|
for vbd_ref in vbd_refs:
|
|
vbd_rec = self.session.VBD.get_record(vbd_ref)
|
|
|
|
read_rate = float(self.session.VM.query_data_source(
|
|
vm_ref, "vbd_%s_read" % vbd_rec['device']))
|
|
write_rate = float(self.session.VM.query_data_source(
|
|
vm_ref, "vbd_%s_write" % vbd_rec['device']))
|
|
yield virt_inspector.DiskRateStats(
|
|
device=vbd_rec['device'],
|
|
read_bytes_rate=read_rate,
|
|
read_requests_rate=0,
|
|
write_bytes_rate=write_rate,
|
|
write_requests_rate=0)
|