State API

Note

APIs are alpha. This feature requires a full installation of Ray using pip install "ray[default]".

For an overview with examples see Monitoring Ray States.

For the CLI reference see Ray State CLI Reference or Ray Log CLI Reference.

State Python SDK

State APIs are also exported as functions.

Summary APIs

ray.experimental.state.api.summarize_actors([...])	Summarize the actors in cluster.
ray.experimental.state.api.summarize_objects([...])	Summarize the objects in cluster.
ray.experimental.state.api.summarize_tasks([...])	Summarize the tasks in cluster.

List APIs

ray.experimental.state.api.list_actors([...])	List actors in the cluster.
ray.experimental.state.api.list_placement_groups([...])	List placement groups in the cluster.
ray.experimental.state.api.list_nodes([...])	List nodes in the cluster.
ray.experimental.state.api.list_jobs([...])	List jobs submitted to the cluster by :ref: ray job submission.
ray.experimental.state.api.list_workers([...])	List workers in the cluster.
ray.experimental.state.api.list_tasks([...])	List tasks in the cluster.
ray.experimental.state.api.list_objects([...])	List objects in the cluster.
ray.experimental.state.api.list_runtime_envs([...])	List runtime environments in the cluster.

Get APIs

ray.experimental.state.api.get_actor(id[, ...])	Get an actor by id.
ray.experimental.state.api.get_placement_group(id)	Get a placement group by id.
ray.experimental.state.api.get_node(id[, ...])	Get a node by id.
ray.experimental.state.api.get_worker(id[, ...])	Get a worker by id.
ray.experimental.state.api.get_task(id[, ...])	Get task attempts of a task by id.
ray.experimental.state.api.get_objects(id[, ...])	Get objects by id.

Log APIs

ray.experimental.state.api.list_logs([...])	Listing log files available.
ray.experimental.state.api.get_log([...])	Retrieve log file based on file name or some entities ids (pid, actor id, task id).

State APIs Schema

ray.experimental.state.common.ActorState(...)	Actor State
ray.experimental.state.common.TaskState(...)	Task State
ray.experimental.state.common.NodeState(...)	Node State
ray.experimental.state.common.PlacementGroupState(...)	PlacementGroup State
ray.experimental.state.common.WorkerState(...)	Worker State
ray.experimental.state.common.ObjectState(...)	Object State
ray.experimental.state.common.RuntimeEnvState(...)	Runtime Environment State
ray.experimental.state.common.JobState(...)	The state of the job that's submitted by Ray's Job APIs
ray.experimental.state.common.StateSummary(...)
ray.experimental.state.common.TaskSummaries(...)
ray.experimental.state.common.TaskSummaryPerFuncOrClassName(...)
ray.experimental.state.common.ActorSummaries(...)
ray.experimental.state.common.ActorSummaryPerClass(...)
ray.experimental.state.common.ObjectSummaries(...)
ray.experimental.state.common.ObjectSummaryPerKey(...)

State APIs Exceptions

ray.experimental.state.exception.RayStateApiException(...)