Exceptions

ray.exceptions.RayError	Super class of all ray exception types.
ray.exceptions.RayTaskError	Indicates that a task threw an exception during execution.
ray.exceptions.RayActorError	Indicates that the actor has outages unexpectedly before finishing a task.
ray.exceptions.TaskCancelledError	Raised when this task is cancelled.
ray.exceptions.TaskUnschedulableError	Raised when the task cannot be scheduled.
ray.exceptions.ActorDiedError	Indicates that the actor died unexpectedly before finishing a task.
ray.exceptions.ActorUnschedulableError	Raised when the actor cannot be scheduled.
ray.exceptions.ActorUnavailableError	Raised when the actor is temporarily unavailable but may be available later.
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.OutOfMemoryError	Indicates that the node is running out of memory and is close to 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.PendingCallsLimitExceeded	Raised when the pending actor calls exceeds max_pending_calls option.
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.RayChannelError	Indicates that Ray encountered a system error related to ray.experimental.channel.
ray.exceptions.RayChannelTimeoutError	Raised when the Compiled Graph channel operation times out.
ray.exceptions.RayCgraphCapacityExceeded	Raised when the Compiled Graph channel's buffer is at max capacity
ray.exceptions.RuntimeEnvSetupError	Raised when a runtime environment fails to be set up.
ray.exceptions.CrossLanguageError	Raised from another language.
ray.exceptions.RaySystemError	Indicates that Ray encountered a system error.
ray.exceptions.NodeDiedError	Indicates that the node is either dead or unreachable.