def create_backend(func_or_class, backend_tag, *actor_init_args):
"""Create a backend using func_or_class and assign backend_tag.
Args:
func_or_class (callable, class): a function or a class implements
__call__ protocol.
backend_tag (str): a unique tag assign to this backend. It will be used
to associate services in traffic policy.
*actor_init_args (optional): the argument to pass to the class
initialization method.
"""
if inspect.isfunction(func_or_class):
runner = TaskRunnerActor.remote(func_or_class)
elif inspect.isclass(func_or_class):
# Python inheritance order is right-to-left. We put RayServeMixin
# on the left to make sure its methods are not overriden.
@ray.remote
class CustomActor(RayServeMixin, func_or_class):
pass
runner = CustomActor.remote(*actor_init_args)
else:
raise TypeError(
"Backend must be a function or class, it is {}.".format(
type(func_or_class)))
global_state.backend_actor_handles.append(runner)
runner._ray_serve_setup.remote(backend_tag,
global_state.router_actor_handle)
runner._ray_serve_main_loop.remote(runner)
global_state.registered_backends.add(backend_tag)
def create_backend(func_or_class, backend_tag, *actor_init_args):
"""Create a backend using func_or_class and assign backend_tag.
Args:
func_or_class (callable, class): a function or a class implements
__call__ protocol.
backend_tag (str): a unique tag assign to this backend. It will be used
to associate services in traffic policy.
*actor_init_args (optional): the argument to pass to the class
initialization method.
"""
if inspect.isfunction(func_or_class):
# ignore lint on lambda expression
creator = lambda: TaskRunnerActor.remote(func_or_class) # noqa: E731
elif inspect.isclass(func_or_class):
# Python inheritance order is right-to-left. We put RayServeMixin
# on the left to make sure its methods are not overriden.
@ray.remote
class CustomActor(RayServeMixin, func_or_class):
pass
# ignore lint on lambda expression
creator = lambda: CustomActor.remote(*actor_init_args) # noqa: E731
else:
raise TypeError(
"Backend must be a function or class, it is {}.".format(
type(func_or_class)))
global_state.backend_table.register_backend(backend_tag, creator)
scale(backend_tag, 1)
def test_task_runner_check_context(serve_instance):
q = CentralizedQueuesActor.remote()
def echo(flask_request, i=None):
# Accessing the flask_request without web context should throw.
return flask_request.args["i"]
CONSUMER_NAME = "runner"
PRODUCER_NAME = "producer"
runner = TaskRunnerActor.remote(echo)
runner._ray_serve_setup.remote(CONSUMER_NAME, q, runner)
runner._ray_serve_main_loop.remote()
q.link.remote(PRODUCER_NAME, CONSUMER_NAME)
result_token = ray.ObjectID(
ray.get(
q.enqueue_request.remote(
PRODUCER_NAME,
request_args=None,
request_kwargs={"i": 42},
request_context=context.TaskContext.Python)))
with pytest.raises(ray.exceptions.RayTaskError):
ray.get(result_token)
def test_runner_actor(serve_instance):
q = CentralizedQueuesActor.remote()
def echo(flask_request, i=None):
return i
CONSUMER_NAME = "runner"
PRODUCER_NAME = "prod"
runner = TaskRunnerActor.remote(echo)
runner._ray_serve_setup.remote(CONSUMER_NAME, q, runner)
runner._ray_serve_main_loop.remote()
q.link.remote(PRODUCER_NAME, CONSUMER_NAME)
for query in [333, 444, 555]:
result_token = ray.ObjectID(
ray.get(
q.enqueue_request.remote(
PRODUCER_NAME,
request_args=None,
request_kwargs={"i": query},
request_context=context.TaskContext.Python)))
assert ray.get(result_token) == query
def test_runner_actor(serve_instance):
q = CentralizedQueuesActor.remote()
def echo(i):
return i
CONSUMER_NAME = "runner"
PRODUCER_NAME = "prod"
runner = TaskRunnerActor.remote(echo)
runner._ray_serve_setup.remote(CONSUMER_NAME, q)
runner._ray_serve_main_loop.remote(runner)
q.link.remote(PRODUCER_NAME, CONSUMER_NAME)
for query in [333, 444, 555]:
result_token = ray.ObjectID(
ray.get(q.enqueue_request.remote(PRODUCER_NAME, query)))
assert ray.get(result_token) == query
async def test_runner_actor(serve_instance):
q = RoundRobinPolicyQueueActor.remote()
def echo(flask_request, i=None):
return i
CONSUMER_NAME = "runner"
PRODUCER_NAME = "prod"
runner = TaskRunnerActor.remote(echo)
runner._ray_serve_setup.remote(CONSUMER_NAME, q, runner)
runner._ray_serve_fetch.remote()
q.link.remote(PRODUCER_NAME, CONSUMER_NAME)
for query in [333, 444, 555]:
query_param = RequestMetadata(PRODUCER_NAME,
context.TaskContext.Python)
result = await q.enqueue_request.remote(query_param, i=query)
assert result == query
async def test_task_runner_check_context(serve_instance):
q = RoundRobinPolicyQueueActor.remote()
def echo(flask_request, i=None):
# Accessing the flask_request without web context should throw.
return flask_request.args["i"]
CONSUMER_NAME = "runner"
PRODUCER_NAME = "producer"
runner = TaskRunnerActor.remote(echo)
runner._ray_serve_setup.remote(CONSUMER_NAME, q, runner)
runner._ray_serve_fetch.remote()
q.link.remote(PRODUCER_NAME, CONSUMER_NAME)
query_param = RequestMetadata(PRODUCER_NAME, context.TaskContext.Python)
result_oid = q.enqueue_request.remote(query_param, i=42)
with pytest.raises(ray.exceptions.RayTaskError):
await result_oid