Managing subclusters Yandex Data Processing

Written by

Updated at May 13, 2025

Getting a list of subclusters in a cluster
Creating a subcluster
Deleting a subcluster

In addition to updating the settings of a particular subcluster, you can create new and delete existing subclusters.

Warning

Each cluster may have only 1 subcluster with a master host, which is why you cannot create or delete subclusters with this role. You cannot delete data storage subclusters either.

Getting a list of subclusters in a cluster

Management console

CLI

Go to the folder page and select Yandex Data Processing.
Click the cluster name and open the Subclusters tab.

If you do not have the Yandex Cloud (CLI) command line interface yet, install and initialize it.

The folder specified when creating the CLI profile is used by default. To change the default folder, use the yc config set folder-id <folder_ID> command. You can specify a different folder using the --folder-name or --folder-id parameter.

To request a list of Yandex Data Processing subclusters in a cluster, run the following command:

yc dataproc subcluster list --cluster-name=<cluster_name>

You can retrieve the cluster name with a list of clusters in the folder.

Creating a subcluster

The number of hosts in Yandex Data Processing clusters is limited by quotas by the number of vCPUs and the amount of RAM that VMs in your cloud can use. To view the available resources, go to the Quotas section and find Compute Cloud.

Management console

CLI

Terraform

In the management console, select the appropriate folder.
Select Yandex Data Processing and the required cluster.
Go to Subclusters.
Click Create subcluster.
Specify the subcluster parameters:
1. Hosts: Select the number of hosts.
2. Roles: Select the subcluster roles depending on the services to be deployed on the hosts:
  - COMPUTENODE: Role for processing data. In subclusters with this role, you can deploy YARN NodeManager and Spark libraries.
  - DATANODE: Role for storing data. In subclusters with this role, you can deploy YARN NodeManager, Spark libraries, HBase RegionServer, and HDFS Datanode.
3. Under Host class, select a platform and computing resources available to the host.
4. Under Size of storage, specify the type and size of storage.
5. Under Network settings:
  - Select Network ID format.
  - Specify Subnet (subnet of the network where the cluster is located).
  - (Optional) Enable Public access for online access to subcluster hosts.
    
    This setting cannot be edited after the subcluster is created.
    
    Tip
    
    You can delete data processing subclusters and recreate them with the relevant setting value.
6. (Optional) Enable Autoscaling.
Click Add subcluster.

If you do not have the Yandex Cloud (CLI) command line interface yet, install and initialize it.

To create a subcluster:

View a description of the CLI create subcluster command:
```
yc dataproc subcluster create --help
```
Specify subcluster parameters in the create command (the list of supported parameters in the example is not exhaustive):
```
yc dataproc subcluster create <subcluster_name> \
  --cluster-name=<cluster_name> \
  --role=<subcluster_role> \
  --resource-preset=<host_class> \
  --disk-type=<storage_type> \
  --disk-size=<storage_size_in_GB> \
  --subnet-name=<subnet_name> \
  --hosts-count=<number_of_hosts>
```
Where:
- --cluster-name: Cluster name. You can retrieve the cluster name with a list of clusters in the folder.
- --role: Subcluster role (datanode, or computenode).
- --resource-preset: Host class.
- --disk-type: Storage type (network-ssd, network-hdd, or network-ssd-nonreplicated).
- --disk-size: Storage size in GB.
- --subnet-name: Name of the subnet.
- --hosts-count: Subcluster host count. The minimum value is 1 and the maximum value is 32.

Open the current Terraform configuration file with an infrastructure plan.

For more information about how to create this file, see Creating clusters.

In the Yandex Data Processing cluster description, add a subcluster_spec section containing the settings for the new subcluster:

resource "yandex_dataproc_cluster" "data_cluster" {
  ...
  cluster_config {
    ...
    subcluster_spec {
      name = "<subcluster_name>"
      role = "<subcluster_role>"
      resources {
        resource_preset_id = "<host_class>"
        disk_type_id       = "<storage_type>"
        disk_size          = <storage_size_in_GB>
      }
      subnet_id   = "<subnet_ID>"
      hosts_count = <number_of_subcluster_hosts>
      ...
    }
  }
}

Where role is the subcluster role, COMPUTENODE or DATANODE.

Make sure the settings are correct.
1. In the command line, navigate to the directory that contains the current Terraform configuration files defining the infrastructure.
2. Run this command:
```
terraform validate
```
  Terraform will show any errors found in your configuration files.
Confirm updating the resources.
1. Run this command to view the planned changes:
```
terraform plan
```
  If you described the configuration correctly, the terminal will display a list of the resources to update and their parameters. This is a verification step that does not apply changes to your resources.
2. If everything looks correct, apply the changes:
  1. Run this command:
```
terraform apply
```
  2. Confirm updating the resources.
  3. Wait for the operation to complete.

For more information about resources you can create using Terraform, see the provider documentation.

Deleting a subcluster

Warning

You cannot delete data storage subclusters.

Management console

CLI

Terraform

To delete a subcluster:

In the management console, select the appropriate folder.
Select Yandex Data Processing and the required cluster.
Go to Subclusters.
Click for the subcluster you need and select Delete.
(Optional) Specify the decommissioning timeout.
In the window that opens, click Delete.

If you do not have the Yandex Cloud (CLI) command line interface yet, install and initialize it.

To delete a subcluster in a Yandex Data Processing cluster, run the command:

yc dataproc subcluster delete <subcluster_name_or_ID> \
  --cluster-name=<cluster_name>

You can request a subcluster name or ID with a list of cluster subclusters, and a cluster name with a list of folder clusters.

Open the current Terraform configuration file with an infrastructure plan.

For more information about how to create this file, see Creating clusters.
In the Yandex Data Processing cluster description, delete the subcluster_spec section for the required subcluster.
Make sure the settings are correct.
1. In the command line, navigate to the directory that contains the current Terraform configuration files defining the infrastructure.
2. Run this command:
```
terraform validate
```
  Terraform will show any errors found in your configuration files.
Type yes and press Enter.
1. Run this command to view the planned changes:
```
terraform plan
```
  If you described the configuration correctly, the terminal will display a list of the resources to update and their parameters. This is a verification step that does not apply changes to your resources.
2. If everything looks correct, apply the changes:
  1. Run this command:
```
terraform apply
```
  2. Confirm updating the resources.
  3. Wait for the operation to complete.

For more information about resources you can create using Terraform, see the provider documentation.

Managing subclusters Yandex Data Processing

Getting a list of subclusters in a clusterGetting a list of subclusters in a cluster

Creating a subclusterCreating a subcluster

Deleting a subclusterDeleting a subcluster

Was the article helpful?

Getting a list of subclusters in a cluster

Creating a subcluster

Deleting a subcluster