openstack/aodh
Code Issues Proposed changes

Skipping central agent pollster when keystone not available

Browse Source 
When keystone is not available, instead of skipping all central agent
pollsters, we should let the pollsters decide whether to skip or not,
because not all central agent pollsters requires keystone.

Closes-Bug: #1316532

Change-Id: Ib34f9838bd128e1b357937f0c177d8a09f19b13f
This commit is contained in:
Lianhao Lu 2014-06-05 20:19:45 +08:00
parent 3d2723ed7d
commit 5e5559b545
10 changed files with 114 additions and 44 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
ceilometer/agent.py
View File

@ -85,8 +85,8 @@ class PollingTask(object):
source_resources = list(self.resources[key].resources)
try:
samples = list(pollster.obj.get_samples(
self.manager,
cache,
manager=self.manager,
cache=cache,
resources=source_resources or agent_resources,
))
publisher(samples)

4
ceilometer/central/manager.py
View File

@ -20,7 +20,6 @@ from keystoneclient.v2_0 import client as ksclient
from oslo.config import cfg
from ceilometer import agent
from ceilometer.openstack.common.gettextutils import _
from ceilometer.openstack.common import log
cfg.CONF.import_group('service_credentials', 'ceilometer.service')
@ -45,7 +44,6 @@ class AgentManager(agent.AgentManager):
region_name=cfg.CONF.service_credentials.os_region_name,
insecure=cfg.CONF.service_credentials.insecure)
except Exception as e:
LOG.error(_('Skip interval_task because Keystone error: %s'), e)
return
self.keystone = e
super(AgentManager, self).interval_task(task)

19
ceilometer/central/plugin.py
View File

@ -18,8 +18,27 @@
"""Base class for plugins used by the central agent.
"""
from ceilometer.openstack.common.gettextutils import _
from ceilometer.openstack.common import log
from ceilometer import plugin
LOG = log.getLogger(__name__)
class CentralPollster(plugin.PollsterBase):
"""Base class for plugins that support the polling API."""
def check_keystone(f):
"""Decorator function to check if manager has valid keystone client."""
def func(self, *args, **kwargs):
manager = kwargs.get('manager')
if not manager and len(args) > 0:
manager = args[0]
keystone = getattr(manager, 'keystone', None)
if not keystone or isinstance(keystone, Exception):
LOG.error(_('Skip due to keystone error %s'),
str(keystone) if keystone else '')
return iter([])
return f(self, *args, **kwargs)
return func

4
ceilometer/energy/kwapi.py
View File

@ -81,7 +81,7 @@ class _Base(plugin.CentralPollster):
class EnergyPollster(_Base):
"""Measures energy consumption."""
@plugin.check_keystone
def get_samples(self, manager, cache, resources=None):
"""Returns all samples."""
for probe in self._iter_probes(manager.keystone, cache):
@ -101,7 +101,7 @@ class EnergyPollster(_Base):
class PowerPollster(_Base):
"""Measures power consumption."""
@plugin.check_keystone
def get_samples(self, manager, cache, resources=None):
"""Returns all samples."""
for probe in self._iter_probes(manager.keystone, cache):

8
ceilometer/image/glance.py
View File

@ -24,12 +24,12 @@ import itertools
import glanceclient
from oslo.config import cfg
from ceilometer.central import plugin
from ceilometer.openstack.common import timeutils
from ceilometer import plugin
from ceilometer import sample
class _Base(plugin.PollsterBase):
class _Base(plugin.CentralPollster):
@staticmethod
def get_glance_client(ksclient):
@ -103,7 +103,7 @@ class _Base(plugin.PollsterBase):
class ImagePollster(_Base):
@plugin.check_keystone
def get_samples(self, manager, cache, resources=None):
for image in self._iter_images(manager.keystone, cache):
yield sample.Sample(
@ -120,7 +120,7 @@ class ImagePollster(_Base):
class ImageSizePollster(_Base):
@plugin.check_keystone
def get_samples(self, manager, cache, resources=None):
for image in self._iter_images(manager.keystone, cache):
yield sample.Sample(

12
ceilometer/objectstore/swift.py
View File

@ -25,10 +25,10 @@ from keystoneclient import exceptions
from oslo.config import cfg
from swiftclient import client as swift
from ceilometer.central import plugin
from ceilometer.openstack.common.gettextutils import _
from ceilometer.openstack.common import log
from ceilometer.openstack.common import timeutils
from ceilometer import plugin
from ceilometer import sample
@ -44,7 +44,7 @@ OPTS = [
cfg.CONF.register_opts(OPTS)
class _Base(plugin.PollsterBase):
class _Base(plugin.CentralPollster):
CACHE_KEY_TENANT = 'tenants'
METHOD = 'head'
@ -87,7 +87,7 @@ class _Base(plugin.PollsterBase):
class ObjectsPollster(_Base):
"""Iterate over all accounts, using keystone.
"""
@plugin.check_keystone
def get_samples(self, manager, cache, resources=None):
for tenant, account in self._iter_accounts(manager.keystone, cache):
yield sample.Sample(
@ -106,7 +106,7 @@ class ObjectsPollster(_Base):
class ObjectsSizePollster(_Base):
"""Iterate over all accounts, using keystone.
"""
@plugin.check_keystone
def get_samples(self, manager, cache, resources=None):
for tenant, account in self._iter_accounts(manager.keystone, cache):
yield sample.Sample(
@ -125,7 +125,7 @@ class ObjectsSizePollster(_Base):
class ObjectsContainersPollster(_Base):
"""Iterate over all accounts, using keystone.
"""
@plugin.check_keystone
def get_samples(self, manager, cache, resources=None):
for tenant, account in self._iter_accounts(manager.keystone, cache):
yield sample.Sample(
@ -147,6 +147,7 @@ class ContainersObjectsPollster(_Base):
METHOD = 'get'
@plugin.check_keystone
def get_samples(self, manager, cache, resources=None):
for project, account in self._iter_accounts(manager.keystone, cache):
containers_info = account[1]
@ -170,6 +171,7 @@ class ContainersSizePollster(_Base):
METHOD = 'get'
@plugin.check_keystone
def get_samples(self, manager, cache, resources=None):
for project, account in self._iter_accounts(manager.keystone, cache):
containers_info = account[1]

41
ceilometer/tests/agentbase.py
View File

@ -170,30 +170,27 @@ class BaseAgentManagerTestCase(base.BaseTestCase):
self.pipeline_cfg,
self.transformer_manager)
def get_extention_list(self):
return [extension.Extension('test',
None,
None,
self.Pollster(), ),
extension.Extension('testanother',
None,
None,
self.PollsterAnother(), ),
extension.Extension('testexception',
None,
None,
self.PollsterException(), ),
extension.Extension('testexceptionanother',
None,
None,
self.PollsterExceptionAnother(), )]
def create_pollster_manager(self):
return extension.ExtensionManager.make_test_instance(
[
extension.Extension(
'test',
None,
None,
self.Pollster(), ),
extension.Extension(
'testanother',
None,
None,
self.PollsterAnother(), ),
extension.Extension(
'testexception',
None,
None,
self.PollsterException(), ),
extension.Extension(
'testexceptionanother',
None,
None,
self.PollsterExceptionAnother(), ),
],
self.get_extention_list(),
)
def create_discovery_manager(self):

62
ceilometer/tests/central/test_manager.py
View File

@ -19,10 +19,13 @@
"""
import mock
from stevedore import extension
from ceilometer.central import manager
from ceilometer.central import plugin
from ceilometer.openstack.common.fixture import mockpatch
from ceilometer.openstack.common import test
from ceilometer import pipeline
from ceilometer.tests import agentbase
@ -34,7 +37,31 @@ class TestManager(test.BaseTestCase):
self.assertIsNotNone(list(mgr.pollster_manager))
class TestPollsterKeystone(agentbase.TestPollster):
@plugin.check_keystone
def get_samples(self, manager, cache, resources=None):
func = super(TestPollsterKeystone, self).get_samples
return func(manager=manager,
cache=cache,
resources=resources)
class TestRunTasks(agentbase.BaseAgentManagerTestCase):
class PollsterKeystone(TestPollsterKeystone):
samples = []
resources = []
test_data = agentbase.TestSample(
name='testkeystone',
type=agentbase.default_test_data.type,
unit=agentbase.default_test_data.unit,
volume=agentbase.default_test_data.volume,
user_id=agentbase.default_test_data.user_id,
project_id=agentbase.default_test_data.project_id,
resource_id=agentbase.default_test_data.resource_id,
timestamp=agentbase.default_test_data.timestamp,
resource_metadata=agentbase.default_test_data.resource_metadata)
@staticmethod
def create_manager():
return manager.AgentManager()
@ -44,18 +71,45 @@ class TestRunTasks(agentbase.BaseAgentManagerTestCase):
super(TestRunTasks, self).setUp()
self.useFixture(mockpatch.Patch(
'keystoneclient.v2_0.client.Client',
return_value=None))
return_value=mock.Mock()))
def tearDown(self):
self.PollsterKeystone.samples = []
self.PollsterKeystone.resources = []
super(TestRunTasks, self).tearDown()
def get_extention_list(self):
exts = super(TestRunTasks, self).get_extention_list()
exts.append(extension.Extension('testkeystone',
None,
None,
self.PollsterKeystone(),))
return exts
def test_get_sample_resources(self):
polling_tasks = self.mgr.setup_polling_tasks()
self.mgr.interval_task(polling_tasks.values()[0])
self.assertTrue(self.Pollster.resources)
def test_skip_task_when_keystone_fail(self):
"""Test for https://bugs.launchpad.net/ceilometer/+bug/1287613."""
def test_when_keystone_fail(self):
"""Test for bug 1316532.
"""
self.useFixture(mockpatch.Patch(
'keystoneclient.v2_0.client.Client',
side_effect=Exception))
self.pipeline_cfg = [
{
'name': "test_keystone",
'interval': 10,
'counters': ['testkeystone'],
'resources': ['test://'] if self.source_resources else [],
'transformers': [],
'publishers': ["test"],
},
]
self.mgr.pipeline_manager = pipeline.PipelineManager(
self.pipeline_cfg,
self.transformer_manager)
polling_tasks = self.mgr.setup_polling_tasks()
self.mgr.interval_task(polling_tasks.values()[0])
self.assertFalse(self.Pollster.samples)
self.assertFalse(self.PollsterKeystone.samples)

2
ceilometer/tests/energy/test_kwapi.py
View File

@ -51,7 +51,7 @@ class TestManager(manager.AgentManager):
def __init__(self):
super(TestManager, self).__init__()
self.keystone = None
self.keystone = mock.Mock()
class TestKwapi(test.BaseTestCase):

2
ceilometer/tests/image/test_glance.py
View File

@ -113,7 +113,7 @@ class TestManager(manager.AgentManager):
def __init__(self):
super(TestManager, self).__init__()
self.keystone = None
self.keystone = mock.Mock()
class TestImagePollster(test.BaseTestCase):