Changing the Shape of a Cluster Node

Change the shape of a node in a Big Data Service cluster with some restrictions:

Consider the following restrictions for changing a node's shape:

All the master nodes and utility nodes in a cluster must use the same shape, and all worker nodes must use the same shape. However, the master nodes and utility nodes can use a different shape than the worker nodes. Therefore, when you change the shapes of nodes, you can change the shape of all the master and utility nodes together, and you can change the shape of all the worker nodes together.
You can change the shapes only of nodes using standard shapes, and you can change them only to other standard shapes. For information about standard shapes, see Compute Shapes. For information about shapes supported in Big Data Service, see Planning the Cluster Layout, Shape, and Storage.

To change the shape of a node, follow these steps:
1. Open the navigation menu and click Analytics & AI. Under Data Lake, click Big Data Service.
2. Under Compartment, select the compartment that contains the cluster.
3. In the list of clusters, click the name of the cluster.
4. On the Cluster details page, click More actions, and then select Change shape.
5. In the Change shape dialog box, provide the following details:
  
  Choose node type: Select the type of node whose shape you want to change.
  
  New shape: Select a new shape for the nodes of the selected type.
  
  Cluster admin password: Enter the administrator password for the cluster.
6. Click Change shape.
Use the oci bds instance change-shape command and required parameters to edit an autoscale configuration.
```
oci bds instance change-shape --bds-instance-id <bds_instance_id> --cluster-admin-password <cluster_admin_password> --nodes file://nodes.json [OPTIONS]
```
For a complete list of flags and variable options for CLI commands, see the Command Line Reference for Big Data.
Use the ChangeShape operation to change the cluster shape.