ray.exceptions.ActorDiedError

exception ray.exceptions.ActorDiedError(cause: RayTaskError | ray.core.generated.common_pb2.ActorDiedErrorContext | None = None)

Indicates that the actor died unexpectedly before finishing a task.

This exception could happen either because the actor process dies while executing a task, or because a task is submitted to a dead actor.

Parameters:

cause – The cause of the actor error. RayTaskError type means the actor has died because of an exception within __init__. ActorDiedErrorContext means the actor has died because of an unexpected system error. None means the cause isn’t known. Theoretically, this shouldn’t happen, but it’s there as a safety check.

DeveloperAPI: This API may change across minor Ray releases.