def report_state(self):
"""Update the state of this service in the datastore."""
if not self.manager.is_working():
# NOTE(dulek): If manager reports a problem we're not sending
# heartbeats - to indicate that service is actually down.
LOG.error(
'Manager for service %(binary)s %(host)s is '
'reporting problems, not sending heartbeat. '
'Service will appear "down".', {
'binary': self.binary,
'host': self.host
})
return
ctxt = context.get_admin_context()
state_catalog = {}
try:
try:
service_ref = db.service_get(ctxt, self.service_id)
except exception.NotFound:
LOG.debug('The service database object disappeared, '
'recreating it.')
self._create_service_ref(ctxt)
service_ref = db.service_get(ctxt, self.service_id)
state_catalog['report_count'] = service_ref['report_count'] + 1
db.service_update(ctxt, self.service_id, state_catalog)
# TODO(termie): make this pattern be more elegant.
if getattr(self, 'model_disconnected', False):
self.model_disconnected = False
LOG.error('Recovered model server connection!')
except db_exc.DBConnectionError:
if not getattr(self, 'model_disconnected', False):
self.model_disconnected = True
LOG.exception('model server went away')
# NOTE(jsbryant) Other DB errors can happen in HA configurations.
# such errors shouldn't kill this thread, so we handle them here.
except db_exc.DBError:
if not getattr(self, 'model_disconnected', False):
self.model_disconnected = True
LOG.exception('DBError encountered: ')
except Exception:
if not getattr(self, 'model_disconnected', False):
self.model_disconnected = True
LOG.exception('Exception encountered: ')
def report_state(self):
"""Update the state of this service in the datastore."""
if not self.manager.is_working():
# NOTE(dulek): If manager reports a problem we're not sending
# heartbeats - to indicate that service is actually down.
LOG.error(_LE('Manager for service %(binary)s %(host)s is '
'reporting problems, not sending heartbeat. '
'Service will appear "down".'),
{'binary': self.binary,
'host': self.host})
return
ctxt = context.get_admin_context()
state_catalog = {}
try:
try:
service_ref = db.service_get(ctxt, self.service_id)
except exception.NotFound:
LOG.debug('The service database object disappeared, '
'recreating it.')
self._create_service_ref(ctxt)
service_ref = db.service_get(ctxt, self.service_id)
state_catalog['report_count'] = service_ref['report_count'] + 1
db.service_update(ctxt,
self.service_id, state_catalog)
# TODO(termie): make this pattern be more elegant.
if getattr(self, 'model_disconnected', False):
self.model_disconnected = False
LOG.error(_LE('Recovered model server connection!'))
except db_exc.DBConnectionError:
if not getattr(self, 'model_disconnected', False):
self.model_disconnected = True
LOG.exception(_LE('model server went away'))
# NOTE(jsbryant) Other DB errors can happen in HA configurations.
# such errors shouldn't kill this thread, so we handle them here.
except db_exc.DBError:
if not getattr(self, 'model_disconnected', False):
self.model_disconnected = True
LOG.exception(_LE('DBError encountered: '))
except Exception:
if not getattr(self, 'model_disconnected', False):
self.model_disconnected = True
LOG.exception(_LE('Exception encountered: '))
def test_service_disabled_on_create_based_on_flag(self):
self.flags(enable_new_services=False)
host = 'foo'
binary = 'karbor-fake'
app = service.Service.create(host=host, binary=binary)
app.start()
app.stop()
ref = db.service_get(context.get_admin_context(), app.service_id)
db.service_destroy(context.get_admin_context(), app.service_id)
self.assertTrue(ref['disabled'])
def test_service_disabled_on_create_based_on_flag(self):
self.flags(enable_new_services=False)
host = 'foo'
binary = 'karbor-fake'
app = service.Service.create(host=host, binary=binary)
app.start()
app.stop()
ref = db.service_get(context.get_admin_context(), app.service_id)
db.service_destroy(context.get_admin_context(), app.service_id)
self.assertTrue(ref['disabled'])
def test_services_get(self):
service_ref = db.service_create(self.ctxt,
{'host': 'hosttest1',
'binary': 'binarytest1',
'topic': 'topictest1',
'report_count': 0})
service_get_ref = db.service_get(self.ctxt, service_ref['id'])
self.assertEqual(service_ref['host'], 'hosttest1')
self.assertEqual(service_get_ref['host'], 'hosttest1')
def test_services_get(self):
service_ref = db.service_create(
self.ctxt, {
'host': 'hosttest1',
'binary': 'binarytest1',
'topic': 'topictest1',
'report_count': 0
})
service_get_ref = db.service_get(self.ctxt, service_ref['id'])
self.assertEqual('hosttest1', service_ref['host'])
self.assertEqual('hosttest1', service_get_ref['host'])
def get_by_id(cls, context, id):
db_service = db.service_get(context, id)
return cls._from_db_object(context, cls(context), db_service)