REST Resource: projects.locations.nodes

Resource: Node

A TPU instance.

JSON representation
{
  "name": string,
  "description": string,
  "acceleratorType": string,
  "ipAddress": string,
  "port": string,
  "state": enum (State),
  "healthDescription": string,
  "tensorflowVersion": string,
  "network": string,
  "cidrBlock": string,
  "serviceAccount": string,
  "createTime": string,
  "schedulingConfig": {
    object (SchedulingConfig)
  },
  "networkEndpoints": [
    {
      object (NetworkEndpoint)
    }
  ],
  "health": enum (Health),
  "labels": {
    string: string,
    ...
  }
}
Fields
name

string

Output only. The immutable name of the TPU

description

string

The user-supplied description of the TPU. Maximum of 512 characters.

acceleratorType

string

The type of hardware accelerators associated with this node. Required.

ipAddress
(deprecated)

string

Output only. DEPRECATED! Use networkEndpoints instead. The network address for the TPU Node as visible to Compute Engine instances.

port
(deprecated)

string

Output only. DEPRECATED! Use networkEndpoints instead. The network port for the TPU Node as visible to Compute Engine instances.

state

enum (State)

Output only. The current state for the TPU Node.

healthDescription

string

Output only. If this field is populated, it contains a description of why the TPU Node is unhealthy.

tensorflowVersion

string

The version of Tensorflow running in the Node. Required.

network

string

The name of a network they wish to peer the TPU node to. It must be a preexisting Compute Engine network inside of the project on which this API has been activated. If none is provided, "default" will be used.

cidrBlock

string

The CIDR block that the TPU node will use when selecting an IP address. This CIDR block must be a /29 block; the Compute Engine networks API forbids a smaller block, and using a larger block would be wasteful (a node can only consume one IP address). Errors will occur if the CIDR block has already been used for a currently existing TPU node, the CIDR block conflicts with any subnetworks in the user's provided network, or the provided network is peered with another network that is using that CIDR block. Required.

serviceAccount

string

Output only. The service account used to run the tensor flow services within the node. To share resources, including Google Cloud Storage data, with the Tensorflow job running in the Node, this account must have permissions to that data.

createTime

string (Timestamp format)

Output only. The time when the node was created.

A timestamp in RFC3339 UTC "Zulu" format, accurate to nanoseconds. Example: "2014-10-02T15:01:23.045123456Z".

schedulingConfig

object (SchedulingConfig)

networkEndpoints[]

object (NetworkEndpoint)

Output only. The network endpoints where TPU workers can be accessed and sent work. It is recommended that Tensorflow clients of the node reach out to the 0th entry in this map first.

health

enum (Health)

The health status of the TPU node.

labels

map (key: string, value: string)

Resource labels to represent user-provided metadata.

An object containing a list of "key": value pairs. Example: { "name": "wrench", "mass": "1.3kg", "count": "3" }.

State

Represents the different states of a TPU node during its lifecycle.

Enums
STATE_UNSPECIFIED TPU node state is not known/set.
CREATING TPU node is being created.
READY TPU node has been created and is fully usable.
RESTARTING TPU node is restarting.
REIMAGING TPU node is undergoing reimaging.
DELETING TPU node is being deleted.
REPAIRING TPU node is being repaired and may be unusable. Details can be found in the help_description field.
STOPPED TPU node is stopped.
STOPPING TPU node is currently stopping.
STARTING TPU node is currently starting.
PREEMPTED TPU node has been preempted. Only applies to Preemptible TPU Nodes.
TERMINATED TPU node has been terminated due to maintenance or has reached the end of its life cycle (for preemptible nodes).
HIDING TPU node is currently hiding.
HIDDEN TPU node has been hidden.
UNHIDING TPU node is currently unhiding.

SchedulingConfig

JSON representation
{
  "preemptible": boolean,
  "reserved": boolean
}
Fields
preemptible

boolean

reserved

boolean

Whether the node is created under a reservation.

NetworkEndpoint

A network endpoint over which a TPU worker can be reached.

JSON representation
{
  "ipAddress": string,
  "port": number
}
Fields
ipAddress

string

The IP address of this network endpoint.

port

number

The port of this network endpoint.

Health

Health defines the status of a TPU node as reported by Health Monitor.

Enums
HEALTH_UNSPECIFIED Health status is unknown: not initialized or failed to retrieve.
HEALTHY The resource is healthy.
DEPRECATED_UNHEALTHY The resource is unhealthy.
TIMEOUT The resource is unresponsive.
UNHEALTHY_TENSORFLOW The in-guest ML stack is unhealthy.
UNHEALTHY_MAINTENANCE The node is under maintenance/priority boost caused rescheduling and will resume running once rescheduled.

Methods

create

Creates a node.

delete

Deletes a node.

get

Gets the details of a node.

list

Lists nodes.

reimage

Reimages a node's OS.

start

Starts a node.

stop

Stops a node.
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