Data Proc API, REST: Subcluster.Get

Field

Description

clusterId

string

Required field. ID of the Data Proc cluster that the subcluster belongs to.

subclusterId

string

Required field. ID of the subcluster to return.

To get a subcluster ID make a SubclusterService.List request.

Field

Description

id

string

ID of the subcluster. Generated at creation time.

clusterId

string

ID of the Data Proc cluster that the subcluster belongs to.

createdAt

string (date-time)

Creation timestamp.

String in RFC3339 text format. The range of possible values is from
0001-01-01T00:00:00Z to 9999-12-31T23:59:59.999999999Z, i.e. from 0 to 9 digits for fractions of a second.

To work with values in this field, use the APIs described in the
Protocol Buffers reference.
In some languages, built-in datetime utilities do not support nanosecond precision (9 digits).

name

string

Name of the subcluster. The name is unique within the cluster.

role

enum (Role)

Role that is fulfilled by hosts of the subcluster.

• ROLE_UNSPECIFIED

• MASTERNODE: The subcluster fulfills the master role.

  Master can run the following services, depending on the requested components:

• HDFS: Namenode, Secondary Namenode
• YARN: ResourceManager, Timeline Server
• HBase Master
• Hive: Server, Metastore, HCatalog
• Spark History Server
• Zeppelin
• ZooKeeper

• DATANODE: The subcluster is a DATANODE in a Data Proc cluster.

  DATANODE can run the following services, depending on the requested components:

• HDFS DataNode
• YARN NodeManager
• HBase RegionServer
• Spark libraries

• COMPUTENODE: The subcluster is a COMPUTENODE in a Data Proc cluster.

  COMPUTENODE can run the following services, depending on the requested components:

• YARN NodeManager
• Spark libraries

resources

Resources

Resources allocated for each host in the subcluster.

subnetId

string

ID of the VPC subnet used for hosts in the subcluster.

hostsCount

string (int64)

Number of hosts in the subcluster.

assignPublicIp

boolean

Assign public ip addresses for all hosts in subcluter.

autoscalingConfig

AutoscalingConfig

Configuration for instance group based subclusters

instanceGroupId

string

ID of Compute Instance Group for autoscaling subclusters

Field

Description

resourcePresetId

string

ID of the resource preset for computational resources available to a host (CPU, memory etc.).
All available presets are listed in the documentation.

diskTypeId

string

Type of the storage environment for the host.
Possible values:

• network-hdd - network HDD drive,
• network-ssd - network SSD drive.

diskSize

string (int64)

Volume of the storage available to a host, in bytes.

Field

Description

maxHostsCount

string (int64)

Upper limit for total instance subcluster count.

preemptible

boolean

Preemptible instances are stopped at least once every 24 hours, and can be stopped at any time
if their resources are needed by Compute.
For more information, see Preemptible Virtual Machines.

measurementDuration

string (duration)

Required field. Time in seconds allotted for averaging metrics.

warmupDuration

string (duration)

The warmup time of the instance in seconds. During this time,
traffic is sent to the instance, but instance metrics are not collected.

stabilizationDuration

string (duration)

Minimum amount of time in seconds allotted for monitoring before
Instance Groups can reduce the number of instances in the group.
During this time, the group size doesn't decrease, even if the new metric values
indicate that it should.

cpuUtilizationTarget

string

Defines an autoscaling rule based on the average CPU utilization of the instance group.

decommissionTimeout

string (int64)

Timeout to gracefully decommission nodes during downscaling. In seconds. Default value: 120