def test_timeout(self, time_mock, get_lock_mock):
# Add a finished node to confirm we don't try to timeout it
time_mock.return_value = self.started_at
session = db.get_session()
finished_at = self.started_at + datetime.timedelta(seconds=60)
with session.begin():
db.Node(uuid=self.uuid + '1', started_at=self.started_at,
state=istate.States.waiting,
finished_at=finished_at).save(session)
CONF.set_override('timeout', 99)
time_mock.return_value = (self.started_at +
datetime.timedelta(seconds=100))
self.assertEqual([self.uuid], node_cache.clean_up())
res = [(row.state, row.finished_at, row.error) for row in
db.model_query(db.Node).all()]
self.assertEqual(
[(istate.States.error,
self.started_at + datetime.timedelta(seconds=100),
'Introspection timeout'),
(istate.States.waiting,
self.started_at + datetime.timedelta(seconds=60), None)],
res)
self.assertEqual([], db.model_query(db.Attribute).all())
self.assertEqual([], db.model_query(db.Option).all())
get_lock_mock.assert_called_once_with(self.uuid)
get_lock_mock.return_value.acquire.assert_called_once_with()
def test_add_node(self):
# Ensure previous node information is cleared
session = db.get_session()
with session.begin():
db.Node(uuid=self.node.uuid).save(session)
db.Node(uuid='uuid2').save(session)
db.Attribute(name='mac',
value='11:22:11:22:11:22',
uuid=self.uuid).save(session)
res = node_cache.add_node(self.node.uuid, mac=self.macs,
bmc_address='1.2.3.4', foo=None)
self.assertEqual(self.uuid, res.uuid)
self.assertTrue(time.time() - 60 < res.started_at < time.time() + 60)
self.assertFalse(res._locked)
res = (db.model_query(db.Node.uuid,
db.Node.started_at).order_by(db.Node.uuid).all())
self.assertEqual(['1a1a1a1a-2b2b-3c3c-4d4d-5e5e5e5e5e5e',
'uuid2'], [t.uuid for t in res])
self.assertTrue(time.time() - 60 < res[0].started_at <
time.time() + 60)
res = (db.model_query(db.Attribute.name,
db.Attribute.value, db.Attribute.uuid).
order_by(db.Attribute.name, db.Attribute.value).all())
self.assertEqual([('bmc_address', '1.2.3.4', self.uuid),
('mac', self.macs[0], self.uuid),
('mac', self.macs[1], self.uuid)],
[(row.name, row.value, row.uuid) for row in res])
def test_add_node(self):
# Ensure previous node information is cleared
uuid2 = uuidutils.generate_uuid()
session = db.get_session()
with session.begin():
db.Node(uuid=self.node.uuid).save(session)
db.Node(uuid=uuid2).save(session)
db.Attribute(name='mac',
value='11:22:11:22:11:22',
uuid=self.uuid).save(session)
node = node_cache.add_node(self.node.uuid, mac=self.macs,
bmc_address='1.2.3.4', foo=None)
self.assertEqual(self.uuid, node.uuid)
self.assertTrue(time.time() - 60 < node.started_at < time.time() + 60)
self.assertFalse(node._locked)
res = set(db.model_query(db.Node.uuid,
db.Node.started_at).all())
expected = {(node.uuid, node.started_at), (uuid2, None)}
self.assertEqual(expected, res)
res = (db.model_query(db.Attribute.name,
db.Attribute.value, db.Attribute.uuid).
order_by(db.Attribute.name, db.Attribute.value).all())
self.assertEqual([('bmc_address', '1.2.3.4', self.uuid),
('mac', self.macs[0], self.uuid),
('mac', self.macs[1], self.uuid)],
[(row.name, row.value, row.uuid) for row in res])
def test_delete(self):
rules.delete(self.uuid)
self.assertEqual([(self.uuid2,)], db.model_query(db.Rule.uuid).all())
self.assertFalse(db.model_query(db.RuleCondition)
.filter_by(rule=self.uuid).all())
self.assertFalse(db.model_query(db.RuleAction)
.filter_by(rule=self.uuid).all())
def test_error(self):
self.node_info.finished(error='boom')
self.assertEqual((datetime.datetime(1, 1, 1), 'boom'),
tuple(db.model_query(db.Node.finished_at,
db.Node.error).first()))
self.assertEqual([], db.model_query(db.Attribute).all())
self.assertEqual([], db.model_query(db.Option).all())
def set_option(self, name, value):
"""Set an option for a node."""
encoded = json.dumps(value)
self.options[name] = value
with db.ensure_transaction() as session:
db.model_query(db.Option, session=session).filter_by(
uuid=self.uuid, name=name).delete()
db.Option(uuid=self.uuid, name=name, value=encoded).save(
session)
def _delete_node(uuid, session=None):
"""Delete information about a node.
:param uuid: Ironic node UUID
:param session: optional existing database session
"""
with db.ensure_transaction(session) as session:
for model in (db.Attribute, db.Option, db.Node):
db.model_query(model,
session=session).filter_by(uuid=uuid).delete()
def test_old_status(self):
CONF.set_override('node_status_keep_time', 42)
session = db.get_session()
with session.begin():
db.model_query(db.Node).update(
{'finished_at': time.time() - 100})
self.assertEqual([], node_cache.clean_up())
self.assertEqual([], db.model_query(db.Node).all())
def find_node(**attributes):
"""Find node in cache.
:param attributes: attributes known about this node (like macs, BMC etc)
also ironic client instance may be passed under 'ironic'
:returns: structure NodeInfo with attributes ``uuid`` and ``created_at``
:raises: Error if node is not found
"""
ironic = attributes.pop('ironic', None)
# NOTE(dtantsur): sorting is not required, but gives us predictability
found = set()
for (name, value) in sorted(attributes.items()):
if not value:
LOG.debug('Empty value for attribute %s', name)
continue
if not isinstance(value, list):
value = [value]
LOG.debug('Trying to use %s of value %s for node look up'
% (name, value))
value_list = []
for v in value:
value_list.append('name="%s" AND value="%s"' % (name, v))
stmt = ('select distinct uuid from attributes where ' +
' OR '.join(value_list))
rows = (db.model_query(db.Attribute.uuid).from_statement(
text(stmt)).all())
if rows:
found.update(item.uuid for item in rows)
if not found:
raise utils.NotFoundInCacheError(_(
'Could not find a node for attributes %s') % attributes)
elif len(found) > 1:
raise utils.Error(_(
'Multiple matching nodes found for attributes '
'%(attr)s: %(found)s')
% {'attr': attributes, 'found': list(found)}, code=404)
uuid = found.pop()
row = (db.model_query(db.Node.started_at, db.Node.finished_at).
filter_by(uuid=uuid).first())
if not row:
raise utils.Error(_(
'Could not find node %s in introspection cache, '
'probably it\'s not on introspection now') % uuid, code=404)
if row.finished_at:
raise utils.Error(_(
'Introspection for node %(node)s already finished on '
'%(finish)s') % {'node': uuid, 'finish': row.finished_at})
return NodeInfo(uuid=uuid, started_at=row.started_at, ironic=ironic)
def test_ok(self, time_mock):
time_mock.return_value = 1000
self.assertFalse(node_cache.clean_up())
res = [tuple(row) for row in db.model_query(
db.Node.finished_at, db.Node.error).all()]
self.assertEqual([(None, None)], res)
self.assertEqual(len(self.macs),
db.model_query(db.Attribute).count())
self.assertEqual(1, db.model_query(db.Option).count())
def _delete_node(uuid, session=None):
"""Delete information about a node.
:param uuid: Ironic node UUID
:param session: optional existing database session
"""
with db.ensure_transaction(session) as session:
db.model_query(db.Attribute,
session=session).filter_by(node_uuid=uuid).delete()
for model in (db.Option, db.IntrospectionData, db.Node):
db.model_query(model,
session=session).filter_by(uuid=uuid).delete()
def test_old_status(self):
CONF.set_override('node_status_keep_time', 42)
session = db.get_session()
with session.begin():
db.model_query(db.Node).update({
'finished_at':
(datetime.datetime.utcnow() - datetime.timedelta(seconds=100))
})
self.assertEqual([], node_cache.clean_up())
self.assertEqual([], db.model_query(db.Node).all())
def test_no_timeout(self):
CONF.set_override('timeout', 0)
self.assertFalse(node_cache.clean_up())
res = [
tuple(row) for row in db.model_query(db.Node.finished_at,
db.Node.error).all()
]
self.assertEqual([(None, None)], res)
self.assertEqual(len(self.macs), db.model_query(db.Attribute).count())
self.assertEqual(1, db.model_query(db.Option).count())
def test_no_timeout(self):
CONF.set_override('timeout', 0)
self.assertFalse(node_cache.clean_up())
res = [tuple(row) for row in
db.model_query(db.Node.finished_at,
db.Node.error).all()]
self.assertEqual([(None, None)], res)
self.assertEqual(len(self.macs),
db.model_query(db.Attribute).count())
self.assertEqual(1, db.model_query(db.Option).count())
def test_success(self):
self.node_info.finished()
session = db.get_session()
with session.begin():
self.assertEqual((42.0, None),
tuple(db.model_query(
db.Node.finished_at,
db.Node.error).first()))
self.assertEqual([], db.model_query(db.Attribute,
session=session).all())
self.assertEqual([], db.model_query(db.Option,
session=session).all())
def delete(uuid):
"""Delete a rule by its UUID."""
with db.ensure_transaction() as session:
db.model_query(db.RuleAction,
session=session).filter_by(rule=uuid).delete()
db.model_query(db.RuleCondition,
session=session) .filter_by(rule=uuid).delete()
count = (db.model_query(db.Rule, session=session)
.filter_by(uuid=uuid).delete())
if not count:
raise utils.Error(_('Rule %s was not found') % uuid, code=404)
LOG.info(_LI('Introspection rule %s was deleted'), uuid)
def test_success(self):
self.node_info.finished()
session = db.get_session()
with session.begin():
self.assertEqual((datetime.datetime(1, 1, 1), None),
tuple(db.model_query(
db.Node.finished_at,
db.Node.error).first()))
self.assertEqual([], db.model_query(db.Attribute,
session=session).all())
self.assertEqual([], db.model_query(db.Option,
session=session).all())
def test_ok(self, time_mock, get_lock_mock):
time_mock.return_value = 1000
self.assertFalse(node_cache.clean_up())
res = [
tuple(row) for row in db.model_query(db.Node.finished_at,
db.Node.error).all()
]
self.assertEqual([(None, None)], res)
self.assertEqual(len(self.macs), db.model_query(db.Attribute).count())
self.assertEqual(1, db.model_query(db.Option).count())
self.assertFalse(get_lock_mock.called)
def clean_up():
"""Clean up the cache.
* Finish introspection for timed out nodes.
* Drop outdated node status information.
:return: list of timed out node UUID's
"""
if CONF.node_status_keep_time > 0:
status_keep_threshold = (
timeutils.utcnow() -
datetime.timedelta(seconds=CONF.node_status_keep_time))
with db.ensure_transaction() as session:
db.model_query(db.Node, session=session).filter(
db.Node.finished_at.isnot(None),
db.Node.finished_at < status_keep_threshold).delete()
timeout = CONF.timeout
if timeout <= 0:
return []
threshold = timeutils.utcnow() - datetime.timedelta(seconds=timeout)
uuids = [
row.uuid for row in db.model_query(db.Node.uuid).filter(
db.Node.started_at < threshold, db.Node.finished_at.is_(
None)).all()
]
if not uuids:
return []
LOG.error('Introspection for nodes %s has timed out', uuids)
for u in uuids:
node_info = get_node(u, locked=True)
try:
if node_info.finished_at or node_info.started_at > threshold:
continue
if node_info.state != istate.States.waiting:
LOG.error(
'Something went wrong, timeout occurred '
'while introspection in "%s" state',
node_info.state,
node_info=node_info)
node_info.finished(istate.Events.timeout,
error='Introspection timeout')
finally:
node_info.release_lock()
return uuids
def get_node(node_id, ironic=None, locked=False):
"""Get node from cache.
:param node_id: node UUID or name.
:param ironic: optional ironic client instance
:param locked: if True, get a lock on node before fetching its data
:returns: structure NodeInfo.
"""
if uuidutils.is_uuid_like(node_id):
node = None
uuid = node_id
else:
node = ir_utils.get_node(node_id, ironic=ironic)
uuid = node.uuid
if locked:
lock = _get_lock(uuid)
lock.acquire()
else:
lock = None
try:
row = db.model_query(db.Node).filter_by(uuid=uuid).first()
if row is None:
raise utils.Error(_('Could not find node %s in cache') % uuid,
code=404)
return NodeInfo.from_row(row, ironic=ironic, lock=lock, node=node)
except Exception:
with excutils.save_and_reraise_exception():
if lock is not None:
lock.release()
def get_all():
"""List all rules."""
query = db.model_query(db.Rule).order_by(db.Rule.created_at)
return [IntrospectionRule(uuid=rule.uuid, actions=rule.actions,
conditions=rule.conditions,
description=rule.description)
for rule in query]
def test_inconsistency(self):
session = db.get_session()
with session.begin():
(db.model_query(db.Node).filter_by(uuid=self.uuid).delete())
self.assertRaises(utils.Error,
node_cache.find_node,
bmc_address='1.2.3.4')
def test_already_finished(self):
session = db.get_session()
with session.begin():
(db.model_query(db.Node).filter_by(uuid=self.uuid).
update({'finished_at': 42.0}))
self.assertRaises(utils.Error, node_cache.find_node,
bmc_address='1.2.3.4')
def active_macs():
"""List all MAC's that are on introspection right now."""
return ({
x.value
for x in db.model_query(db.Attribute.value).filter_by(
name=MACS_ATTRIBUTE)
})
def test_already_finished(self):
session = db.get_session()
with session.begin():
(db.model_query(db.Node).filter_by(uuid=self.uuid).
update({'finished_at': datetime.datetime.utcnow()}))
self.assertRaises(utils.Error, node_cache.find_node,
bmc_address='1.2.3.4')
def test_inconsistency(self):
session = db.get_session()
with session.begin():
(db.model_query(db.Node).filter_by(uuid=self.uuid).
delete())
self.assertRaises(utils.Error, node_cache.find_node,
bmc_address='1.2.3.4')
def get_node(node_id, ironic=None, locked=False):
"""Get node from cache.
:param node_id: node UUID or name.
:param ironic: optional ironic client instance
:param locked: if True, get a lock on node before fetching its data
:returns: structure NodeInfo.
"""
if uuidutils.is_uuid_like(node_id):
node = None
uuid = node_id
else:
node = ir_utils.get_node(node_id, ironic=ironic)
uuid = node.uuid
if locked:
lock = _get_lock(uuid)
lock.acquire()
else:
lock = None
try:
row = db.model_query(db.Node).filter_by(uuid=uuid).first()
if row is None:
raise utils.Error(_('Could not find node %s in cache') % uuid,
code=404)
return NodeInfo.from_row(row, ironic=ironic, lock=lock, node=node)
except Exception:
with excutils.save_and_reraise_exception():
if lock is not None:
lock.release()
def options(self):
"""Node introspection options as a dict."""
if self._options is None:
rows = db.model_query(db.Option).filter_by(
uuid=self.uuid)
self._options = {row.name: json.loads(row.value)
for row in rows}
return self._options
def options(self):
"""Node introspection options as a dict."""
if self._options is None:
rows = db.model_query(db.Option).filter_by(
uuid=self.uuid)
self._options = {row.name: json.loads(row.value)
for row in rows}
return self._options
def _row(self, session=None):
"""Get a row from the database with self.uuid and self.version_id"""
try:
# race condition if version_id changed outside of this node_info
return db.model_query(db.Node, session=session).filter_by(
uuid=self.uuid, version_id=self.version_id).one()
except (orm_errors.NoResultFound, orm_errors.StaleDataError):
raise utils.NodeStateRaceCondition(node_info=self)
def attributes(self):
"""Node look up attributes as a dict."""
if self._attributes is None:
self._attributes = {}
rows = db.model_query(db.Attribute).filter_by(node_uuid=self.uuid)
for row in rows:
self._attributes.setdefault(row.name, []).append(row.value)
return self._attributes
def _row(self, session=None):
"""Get a row from the database with self.uuid and self.version_id"""
try:
# race condition if version_id changed outside of this node_info
return db.model_query(db.Node, session=session).filter_by(
uuid=self.uuid, version_id=self.version_id).one()
except (orm_errors.NoResultFound, orm_errors.StaleDataError):
raise utils.NodeStateRaceCondition(node_info=self)
def clean_up():
"""Clean up the cache.
* Finish introspection for timed out nodes.
* Drop outdated node status information.
:return: list of timed out node UUID's
"""
status_keep_threshold = (time.time() - CONF.node_status_keep_time)
with db.ensure_transaction() as session:
db.model_query(db.Node, session=session).filter(
db.Node.finished_at.isnot(None),
db.Node.finished_at < status_keep_threshold).delete()
timeout = CONF.timeout
if timeout <= 0:
return []
threshold = time.time() - timeout
uuids = [
row.uuid
for row in db.model_query(db.Node.uuid, session=session).filter(
db.Node.started_at < threshold, db.Node.finished_at.is_(
None)).all()
]
if not uuids:
return []
LOG.error(_LE('Introspection for nodes %s has timed out'), uuids)
for u in uuids:
node_info = get_node(u, locked=True)
try:
if node_info.finished_at or node_info.started_at > threshold:
continue
db.model_query(db.Node,
session=session).filter_by(uuid=u).update({
'finished_at':
time.time(),
'error':
'Introspection timeout'
})
db.model_query(db.Attribute,
session=session).filter_by(uuid=u).delete()
db.model_query(db.Option,
session=session).filter_by(uuid=u).delete()
finally:
node_info.release_lock()
return uuids
def finished(self, error=None):
"""Record status for this node.
Also deletes look up attributes from the cache.
:param error: error message
"""
self.release_lock()
self.finished_at = timeutils.utcnow()
self.error = error
with db.ensure_transaction() as session:
self._commit(finished_at=self.finished_at, error=self.error)
db.model_query(db.Attribute, session=session).filter_by(
node_uuid=self.uuid).delete()
db.model_query(db.Option, session=session).filter_by(
uuid=self.uuid).delete()
def test_model_query(self, mock_reader):
mock_session = mock_reader.return_value
fake_query = mock_session.query.return_value
query = db.model_query('db.Node')
mock_reader.assert_called_once_with()
mock_session.query.assert_called_once_with('db.Node')
self.assertEqual(fake_query, query)
def attributes(self):
"""Node look up attributes as a dict."""
if self._attributes is None:
self._attributes = {}
rows = db.model_query(db.Attribute).filter_by(
node_uuid=self.uuid)
for row in rows:
self._attributes.setdefault(row.name, []).append(row.value)
return self._attributes
def test_model_query(self, mock_reader):
mock_session = mock_reader.return_value
fake_query = mock_session.query.return_value
query = db.model_query('db.Node')
mock_reader.assert_called_once_with()
mock_session.query.assert_called_once_with('db.Node')
self.assertEqual(fake_query, query)
def version_id(self):
"""Get the version id"""
if self._version_id is None:
row = db.model_query(db.Node).get(self.uuid)
if row is None:
raise utils.NotFoundInCacheError(_('Node not found in the '
'cache'), node_info=self)
self._version_id = row.version_id
return self._version_id
def version_id(self):
"""Get the version id"""
if self._version_id is None:
row = db.model_query(db.Node).get(self.uuid)
if row is None:
raise utils.NotFoundInCacheError(_('Node not found in the '
'cache'), node_info=self)
self._version_id = row.version_id
return self._version_id
def test_set_race(self):
with db.ensure_transaction() as session:
row = db.model_query(db.Node,
session=session).get(self.node_info.uuid)
row.update({'version_id': uuidutils.generate_uuid()})
row.save(session)
six.assertRaisesRegex(self, utils.NodeStateRaceCondition,
'Node state mismatch', self.node_info._set_state,
istate.States.finished)
def test_commit(self):
current_time = timeutils.utcnow()
self.node_info.started_at = self.node_info.finished_at = current_time
self.node_info.error = "Boo!"
self.node_info.commit()
row = db.model_query(db.Node).get(self.node_info.uuid)
self.assertEqual(self.node_info.started_at, row.started_at)
self.assertEqual(self.node_info.finished_at, row.finished_at)
self.assertEqual(self.node_info.error, row.error)
def test_set_race(self):
with db.ensure_transaction() as session:
row = db.model_query(db.Node, session=session).get(
self.node_info.uuid)
row.update({'version_id': uuidutils.generate_uuid()})
row.save(session)
six.assertRaisesRegex(self, utils.NodeStateRaceCondition,
'Node state mismatch', self.node_info._set_state,
istate.States.finished)
def test_commit(self):
current_time = timeutils.utcnow()
self.node_info.started_at = self.node_info.finished_at = current_time
self.node_info.error = "Boo!"
self.node_info.commit()
row = db.model_query(db.Node).get(self.node_info.uuid)
self.assertEqual(self.node_info.started_at, row.started_at)
self.assertEqual(self.node_info.finished_at, row.finished_at)
self.assertEqual(self.node_info.error, row.error)
def get(uuid):
"""Get a rule by its UUID."""
try:
rule = db.model_query(db.Rule).filter_by(uuid=uuid).one()
except orm.exc.NoResultFound:
raise utils.Error(_('Rule %s was not found') % uuid, code=404)
return IntrospectionRule(uuid=rule.uuid, actions=rule.actions,
conditions=rule.conditions,
description=rule.description)
def test_timeout(self, time_mock):
# Add a finished node to confirm we don't try to timeout it
time_mock.return_value = self.started_at
session = db.get_session()
with session.begin():
db.Node(uuid=self.uuid + '1', started_at=self.started_at,
finished_at=self.started_at + 60).save(session)
CONF.set_override('timeout', 99)
time_mock.return_value = (self.started_at + 100)
self.assertEqual([self.uuid], node_cache.clean_up())
res = [(row.finished_at, row.error) for row in
db.model_query(db.Node).all()]
self.assertEqual([(self.started_at + 100, 'Introspection timeout'),
(self.started_at + 60, None)],
res)
self.assertEqual([], db.model_query(db.Attribute).all())
self.assertEqual([], db.model_query(db.Option).all())
def test__delete_node(self):
session = db.get_session()
with session.begin():
db.Node(uuid=self.node.uuid).save(session)
db.Attribute(name='mac', value='11:22:11:22:11:22',
uuid=self.uuid).save(session)
data = {'s': 'value', 'b': True, 'i': 42}
encoded = json.dumps(data)
db.Option(uuid=self.uuid, name='name', value=encoded).save(session)
node_cache._delete_node(self.uuid)
session = db.get_session()
row_node = db.model_query(db.Node).filter_by(uuid=self.uuid).first()
self.assertIsNone(row_node)
row_attribute = db.model_query(
db.Attribute).filter_by(uuid=self.uuid).first()
self.assertIsNone(row_attribute)
row_option = db.model_query(
db.Option).filter_by(uuid=self.uuid).first()
self.assertIsNone(row_option)
def finished(self, event, error=None):
"""Record status for this node and process a terminal transition.
Also deletes look up attributes from the cache.
:param event: the event to process
:param error: error message
"""
self.release_lock()
self.finished_at = timeutils.utcnow()
self.error = error
with db.ensure_transaction() as session:
self.fsm_event(event)
self._commit(finished_at=self.finished_at, error=self.error)
db.model_query(db.Attribute, session=session).filter_by(
node_uuid=self.uuid).delete()
db.model_query(db.Option, session=session).filter_by(
uuid=self.uuid).delete()
def test_introspection_statuses(self):
self.call_introspect(self.uuid)
eventlet.greenthread.sleep(DEFAULT_SLEEP)
# NOTE(zhenguo): only test finished=False here, as we don't know
# other nodes status in this thread.
statuses = self.call_get_statuses().get('introspection')
self.assertIn(self._fake_status(finished=False), statuses)
# check we've got 1 status with a limit of 1
statuses = self.call_get_statuses(limit=1).get('introspection')
self.assertEqual(1, len(statuses))
all_statuses = self.call_get_statuses().get('introspection')
marker_statuses = self.call_get_statuses(marker=self.uuid,
limit=1).get('introspection')
marker_index = all_statuses.index(self.call_get_status(self.uuid))
# marker is the last row on previous page
self.assertEqual(all_statuses[marker_index + 1:marker_index + 2],
marker_statuses)
self.call_continue(self.data)
eventlet.greenthread.sleep(DEFAULT_SLEEP)
status = self.call_get_status(self.uuid)
self.check_status(status, finished=True, state=istate.States.finished)
# fetch all statuses and db nodes to assert pagination
statuses = self.call_get_statuses().get('introspection')
nodes = db.model_query(db.Node).order_by(
db.Node.started_at.desc()).all()
# assert ordering
self.assertEqual([node.uuid for node in nodes],
[status_.get('uuid') for status_ in statuses])
# assert pagination
half = len(nodes) // 2
marker = nodes[half].uuid
statuses = self.call_get_statuses(marker=marker).get('introspection')
self.assertEqual([node.uuid for node in nodes[half + 1:]],
[status_.get('uuid') for status_ in statuses])
# assert status links work
self.assertEqual([
self.call_get_status(status_.get('uuid')) for status_ in statuses
], [
self.call(
'GET',
urllib.parse.urlparse(
status_.get('links')[0].get('href')).path).json()
for status_ in statuses
])
def get_node(uuid, ironic=None):
"""Get node from cache by it's UUID.
:param uuid: node UUID.
:param ironic: optional ironic client instance
:returns: structure NodeInfo.
"""
row = db.model_query(db.Node).filter_by(uuid=uuid).first()
if row is None:
raise utils.Error(_('Could not find node %s in cache') % uuid,
code=404)
return NodeInfo.from_row(row, ironic=ironic)
def get_node(uuid, ironic=None):
"""Get node from cache by it's UUID.
:param uuid: node UUID.
:param ironic: optional ironic client instance
:returns: structure NodeInfo.
"""
row = db.model_query(db.Node).filter_by(uuid=uuid).first()
if row is None:
raise utils.Error(_('Could not find node %s in cache') % uuid,
code=404)
return NodeInfo.from_row(row, ironic=ironic)
def clean_up():
"""Clean up the cache.
* Finish introspection for timed out nodes.
* Drop outdated node status information.
:return: list of timed out node UUID's
"""
status_keep_threshold = (time.time() -
CONF.node_status_keep_time)
with db.ensure_transaction() as session:
db.model_query(db.Node, session=session).filter(
db.Node.finished_at.isnot(None),
db.Node.finished_at < status_keep_threshold).delete()
timeout = CONF.timeout
if timeout <= 0:
return []
threshold = time.time() - timeout
uuids = [row.uuid for row in
db.model_query(db.Node.uuid, session=session).filter(
db.Node.started_at < threshold,
db.Node.finished_at.is_(None)).all()]
if not uuids:
return []
LOG.error(_LE('Introspection for nodes %s has timed out'), uuids)
for u in uuids:
node_info = get_node(u, locked=True)
try:
if node_info.finished_at or node_info.started_at > threshold:
continue
db.model_query(db.Node, session=session).filter_by(
uuid=u).update({'finished_at': time.time(),
'error': 'Introspection timeout'})
db.model_query(db.Attribute, session=session).filter_by(
uuid=u).delete()
db.model_query(db.Option, session=session).filter_by(
uuid=u).delete()
finally:
node_info.release_lock()
return uuids
def test__delete_node(self):
session = db.get_session()
with session.begin():
db.Node(uuid=self.node.uuid).save(session)
db.Attribute(name='mac', value='11:22:11:22:11:22',
uuid=self.uuid).save(session)
data = {'s': 'value', 'b': True, 'i': 42}
encoded = json.dumps(data)
db.Option(uuid=self.uuid, name='name', value=encoded).save(
session)
node_cache._delete_node(self.uuid)
session = db.get_session()
row_node = db.model_query(db.Node).filter_by(
uuid=self.uuid).first()
self.assertIsNone(row_node)
row_attribute = db.model_query(db.Attribute).filter_by(
uuid=self.uuid).first()
self.assertIsNone(row_attribute)
row_option = db.model_query(db.Option).filter_by(
uuid=self.uuid).first()
self.assertIsNone(row_option)
def delete_all():
"""Delete all rules."""
with db.ensure_transaction() as session:
db.model_query(db.RuleAction, session=session).delete()
db.model_query(db.RuleCondition, session=session).delete()
db.model_query(db.Rule, session=session).delete()
LOG.info(_LI('All introspection rules were deleted'))
def test_add_node(self):
# Ensure previous node information is cleared
uuid2 = uuidutils.generate_uuid()
session = db.get_session()
with session.begin():
db.Node(uuid=self.node.uuid,
state=istate.States.starting).save(session)
db.Node(uuid=uuid2, state=istate.States.starting).save(session)
db.Attribute(uuid=uuidutils.generate_uuid(),
name='mac',
value='11:22:11:22:11:22',
node_uuid=self.uuid).save(session)
node = node_cache.add_node(self.node.uuid,
istate.States.starting,
mac=self.macs,
bmc_address='1.2.3.4',
foo=None)
self.assertEqual(self.uuid, node.uuid)
self.assertTrue(
(datetime.datetime.utcnow() - datetime.timedelta(seconds=60) <
node.started_at <
datetime.datetime.utcnow() + datetime.timedelta(seconds=60)))
self.assertFalse(node._locked)
res = set(db.model_query(db.Node.uuid, db.Node.started_at).all())
expected = {(node.uuid, node.started_at), (uuid2, None)}
self.assertEqual(expected, res)
res = (db.model_query(db.Attribute.name, db.Attribute.value,
db.Attribute.node_uuid).order_by(
db.Attribute.name, db.Attribute.value).all())
self.assertEqual([('bmc_address', '1.2.3.4', self.uuid),
('mac', self.macs[0], self.uuid),
('mac', self.macs[1], self.uuid),
('mac', self.macs[2], self.uuid)],
[(row.name, row.value, row.node_uuid) for row in res])
def get_node_list(ironic=None, marker=None, limit=None):
"""Get node list from the cache.
The list of the nodes is ordered based on the (started_at, uuid)
attribute pair, newer items first.
:param ironic: optional ironic client instance
:param marker: pagination marker (an UUID or None)
:param limit: pagination limit; None for default CONF.api_max_limit
:returns: a list of NodeInfo instances.
"""
if marker is not None:
# uuid marker -> row marker for pagination
marker = db.model_query(db.Node).get(marker)
if marker is None:
raise utils.Error(_('Node not found for marker: %s') % marker,
code=404)
rows = db.model_query(db.Node)
# ordered based on (started_at, uuid); newer first
rows = db_utils.paginate_query(rows, db.Node, limit,
('started_at', 'uuid'),
marker=marker, sort_dir='desc')
return [NodeInfo.from_row(row, ironic=ironic) for row in rows]
def test_add_attribute(self):
session = db.get_session()
with session.begin():
db.Node(uuid=self.node.uuid).save(session)
node_info = node_cache.NodeInfo(uuid=self.uuid, started_at=42)
node_info.add_attribute('key', 'value')
res = db.model_query(db.Attribute.name,
db.Attribute.value,
db.Attribute.uuid,
session=session)
res = res.order_by(db.Attribute.name, db.Attribute.value).all()
self.assertEqual([('key', 'value', self.uuid)],
[tuple(row) for row in res])
self.assertRaises(utils.Error, node_info.add_attribute, 'key', 'value')
# check that .attributes got invalidated and reloaded
self.assertEqual({'key': ['value']}, node_info.attributes)
