mirror of
https://github.com/vale981/ray
synced 2025-03-07 02:51:39 -05:00
121 lines
2.9 KiB
Python
121 lines
2.9 KiB
Python
# flake8: noqa
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# __begin_sync_handle__
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from starlette.requests import Request
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import ray
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from ray import serve
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from ray.serve.handle import RayServeSyncHandle
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@serve.deployment
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class Model:
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def __call__(self) -> str:
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return "hello"
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handle: RayServeSyncHandle = serve.run(Model.bind())
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ref: ray.ObjectRef = handle.remote() # blocks until request is assigned to replica
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assert ray.get(ref) == "hello"
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# __end_sync_handle__
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# __begin_async_handle__
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import asyncio
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import random
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import ray
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from ray import serve
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from ray.serve.handle import RayServeDeploymentHandle, RayServeSyncHandle
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@serve.deployment
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class Model:
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def __call__(self) -> str:
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return "hello"
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@serve.deployment
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class DynamicDispatcher:
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def __init__(
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self, handle_a: RayServeDeploymentHandle, handle_b: RayServeDeploymentHandle
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):
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self.handle_a = handle_a
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self.handle_b = handle_b
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async def __call__(self):
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handle_chosen = self.handle_a if random.random() < 0.5 else self.handle_b
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# The request is enqueued.
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submission_task: asyncio.Task = handle_chosen.remote()
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# The request is assigned to a replica.
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ref: ray.ObjectRef = await submission_task
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# The request has been processed by the replica.
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result = await ref
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return result
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handle: RayServeSyncHandle = serve.run(
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DynamicDispatcher.bind(Model.bind(), Model.bind())
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)
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ref: ray.ObjectRef = handle.remote()
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assert ray.get(ref) == "hello"
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# __end_async_handle__
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# __begin_async_handle_chain__
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import asyncio
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import ray
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from ray import serve
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from ray.serve.handle import RayServeDeploymentHandle, RayServeSyncHandle
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@serve.deployment
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class Model:
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def __call__(self, inp):
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return "hello " + inp
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@serve.deployment
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class Chain:
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def __init__(
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self, handle_a: RayServeDeploymentHandle, handle_b: RayServeDeploymentHandle
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):
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self.handle_a = handle_a
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self.handle_b = handle_b
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async def __call__(self, inp):
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ref: asyncio.Task = await self.handle_b.remote(
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# Serve can handle enqueued-task as dependencies.
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self.handle_a.remote(inp)
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)
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return await ref
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handle: RayServeSyncHandle = serve.run(Chain.bind(Model.bind(), Model.bind()))
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ref: ray.ObjectRef = handle.remote("Serve")
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assert ray.get(ref) == "hello hello Serve"
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# __end_async_handle_chain__
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# __begin_handle_method__
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import ray
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from ray import serve
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from ray.serve.handle import RayServeSyncHandle
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@serve.deployment
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class Deployment:
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def method1(self, arg: str) -> str:
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return f"Method1: {arg}"
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def __call__(self, arg: str) -> str:
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return f"__call__: {arg}"
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handle: RayServeSyncHandle = serve.run(Deployment.bind())
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ray.get(handle.remote("hi")) # Defaults to calling the __call__ method.
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ray.get(handle.method1.remote("hi")) # Call a different method.
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# __end_handle_method__
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