def start(self):
vcs_string = version.version_string_with_vcs()
logging.audit(_('Starting %(topic)s node (version %(vcs_string)s)'),
{'topic': self.topic, 'vcs_string': vcs_string})
self.manager.init_host()
self.model_disconnected = False
ctxt = context.get_admin_context()
try:
service_ref = db.service_get_by_args(ctxt,
self.host,
self.binary)
self.service_id = service_ref['id']
except exception.NotFound:
self._create_service_ref(ctxt)
if 'nova-compute' == self.binary:
self.manager.update_available_resource(ctxt)
self.conn = rpc.create_connection(new=True)
logging.debug("Creating Consumer connection for Service %s" %
self.topic)
# Share this same connection for these Consumers
consumer_all = rpc.create_consumer(self.conn, self.topic, self,
fanout=False)
node_topic = '%s.%s' % (self.topic, self.host)
consumer_node = rpc.create_consumer(self.conn, node_topic, self,
fanout=False)
fanout = rpc.create_consumer(self.conn, self.topic, self, fanout=True)
consumers = [consumer_all, consumer_node, fanout]
consumer_set = rpc.create_consumer_set(self.conn, consumers)
# Wait forever, processing these consumers
def _wait():
try:
consumer_set.wait()
finally:
consumer_set.close()
self.consumer_set_thread = eventlet.spawn(_wait)
if self.report_interval:
pulse = utils.LoopingCall(self.report_state)
pulse.start(interval=self.report_interval, now=False)
self.timers.append(pulse)
if self.periodic_interval:
periodic = utils.LoopingCall(self.periodic_tasks)
periodic.start(interval=self.periodic_interval, now=False)
self.timers.append(periodic)
def setUp(self):
super(RpcAMQPTestCase, self).setUp()
self.conn = rpc.create_connection(True)
self.receiver = TestReceiver()
self.consumer = rpc.create_consumer(self.conn, "test", self.receiver, False)
self.consumer.attach_to_eventlet()
self.context = context.get_admin_context()
def test_nested_calls(self):
"""Test that we can do an rpc.call inside another call."""
class Nested(object):
@staticmethod
def echo(context, queue, value):
"""Calls echo in the passed queue"""
LOG.debug(_("Nested received %(queue)s, %(value)s")
% locals())
# TODO: so, it will replay the context and use the same REQID?
# that's bizarre.
ret = rpc.call(context,
queue,
{"method": "echo",
"args": {"value": value}})
LOG.debug(_("Nested return %s"), ret)
return value
nested = Nested()
conn = rpc.create_connection(True)
consumer = rpc.create_consumer(conn,
'nested',
nested,
False)
consumer.attach_to_eventlet()
value = 42
result = rpc.call(self.context,
'nested', {"method": "echo",
"args": {"queue": "test",
"value": value}})
self.assertEqual(value, result)
def test_rpc_consumer_isolation(self):
class NeverCalled(object):
def __getattribute__(*args):
assert False, "I should never get called."
connection = rpc.create_connection(new=True)
proxy = NeverCalled()
consumer = rpc.create_consumer(connection, 'compute',
proxy, fanout=False)
consumer.attach_to_eventlet()
def test_rpc_consumer_isolation(self):
class NeverCalled(object):
def __getattribute__(*args):
assert False, "I should never get called."
connection = rpc.create_connection(new=True)
proxy = NeverCalled()
consumer = rpc.create_consumer(connection,
'compute',
proxy,
fanout=False)
consumer.attach_to_eventlet()