mirror of
https://github.com/wassname/ray.git
synced 2026-07-02 01:55:25 +08:00
Stephanie Wang
04f31db54d
* Convert UniqueID::nil() to a constructor * Cleanup actor handle pickling code * Add new actor handles to the task spec * Pass in new actor handles * Add new handles to the actor registration * Regression test for actor handle forking and GC * lint and doc * Handle pickled actor handles in the backend and some refactoring * Add regression test for dummy object GC and pickled actor handles * Check for duplicate actor tasks on submission * Regression test for forking twice, fix failed named actor leak * Fix bug for forking twice * lint * Revert "Fix bug for forking twice" This reverts commit 3da85e59d401e53606c2e37ffbebcc8653ff27ac. * Add new actor handles when task is assigned, not finished * Remove comment * remove UniqueID() * Updates * update * fix * fix java * fixes * fix
64 lines
2.0 KiB
Python
64 lines
2.0 KiB
Python
from __future__ import absolute_import
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from __future__ import division
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from __future__ import print_function
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import ray
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import ray.cloudpickle as pickle
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from ray.experimental.internal_kv import _internal_kv_get, _internal_kv_put
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def _calculate_key(name):
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"""Generate a Redis key with the given name.
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Args:
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name: The name of the named actor.
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Returns:
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The key to use for storing a named actor in Redis.
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"""
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return b"Actor:" + name.encode("ascii")
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def get_actor(name):
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"""Get a named actor which was previously created.
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If the actor doesn't exist, an exception will be raised.
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Args:
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name: The name of the named actor.
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Returns:
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The ActorHandle object corresponding to the name.
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"""
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actor_name = _calculate_key(name)
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pickled_state = _internal_kv_get(actor_name)
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if pickled_state is None:
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raise ValueError("The actor with name={} doesn't exist".format(name))
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handle = pickle.loads(pickled_state)
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return handle
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def register_actor(name, actor_handle):
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"""Register a named actor under a string key.
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Args:
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name: The name of the named actor.
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actor_handle: The actor object to be associated with this name
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"""
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if not isinstance(name, str):
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raise TypeError("The name argument must be a string.")
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if not isinstance(actor_handle, ray.actor.ActorHandle):
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raise TypeError("The actor_handle argument must be an ActorHandle "
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"object.")
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actor_name = _calculate_key(name)
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pickled_state = pickle.dumps(actor_handle)
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# Add the actor to Redis if it does not already exist.
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already_exists = _internal_kv_put(actor_name, pickled_state)
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if already_exists:
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# If the registration fails, then erase the new actor handle that
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# was added when pickling the actor handle.
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actor_handle._ray_new_actor_handles.pop()
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raise ValueError(
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"Error: the actor with name={} already exists".format(name))
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