Exceptions

ray.exceptions.RayError	Super class of all ray exception types.
ray.exceptions.RayTaskError(function_name, ...)	Indicates that a task threw an exception during execution.
ray.exceptions.RayActorError(cause, ]] = None)	Indicates that the actor died unexpectedly before finishing a task.
ray.exceptions.TaskCancelledError(task_id)	Raised when this task is cancelled.
ray.exceptions.TaskUnschedulableError(...)	Raised when the task cannot be scheduled.
ray.exceptions.ActorUnschedulableError(...)	Raised when the actor cannot be scheduled.
ray.exceptions.AsyncioActorExit	Raised when an asyncio actor intentionally exits via exit_actor().
ray.exceptions.LocalRayletDiedError	Indicates that the task's local raylet died.
ray.exceptions.WorkerCrashedError	Indicates that the worker died unexpectedly while executing a task.
ray.exceptions.TaskPlacementGroupRemoved	Raised when the corresponding placement group was removed.
ray.exceptions.ActorPlacementGroupRemoved	Raised when the corresponding placement group was removed.
ray.exceptions.ObjectStoreFullError	Indicates that the object store is full.
ray.exceptions.OutOfDiskError	Indicates that the local disk is full.
ray.exceptions.ObjectLostError(...)	Indicates that the object is lost from distributed memory, due to node failure or system error.
ray.exceptions.ObjectFetchTimedOutError(...)	Indicates that an object fetch timed out.
ray.exceptions.GetTimeoutError	Indicates that a call to the worker timed out.
ray.exceptions.OwnerDiedError(...)	Indicates that the owner of the object has died while there is still a reference to the object.
ray.exceptions.PlasmaObjectNotAvailable	Called when an object was not available within the given timeout.
ray.exceptions.ObjectReconstructionFailedError(...)	Indicates that the object cannot be reconstructed.
ray.exceptions.ObjectReconstructionFailedMaxAttemptsExceededError(...)	Indicates that the object cannot be reconstructed because the maximum number of task retries has been exceeded.
ray.exceptions.ObjectReconstructionFailedLineageEvictedError(...)	Indicates that the object cannot be reconstructed because its lineage was evicted due to memory pressure.
ray.exceptions.RuntimeEnvSetupError([...])	Raised when a runtime environment fails to be set up.
ray.exceptions.CrossLanguageError(ray_exception)	Raised from another language.
ray.exceptions.RaySystemError(client_exc[, ...])	Indicates that Ray encountered a system error.