ParallelComputingService / Client / get_compute_node_group

get_compute_node_group#

ParallelComputingService.Client.get_compute_node_group(**kwargs)#

Returns detailed information about a compute node group. This API action provides networking information, EC2 instance type, compute node group status, and scheduler (such as Slurm) configuration.

Request Syntax

response = client.get_compute_node_group(
    clusterIdentifier='string',
    computeNodeGroupIdentifier='string'
)

Parameters:

clusterIdentifier (string) –
[REQUIRED]

The name or ID of the cluster.
computeNodeGroupIdentifier (string) –
[REQUIRED]

The name or ID of the compute node group.

Return type:

dict

Returns:

Response Syntax

{
    'computeNodeGroup': {
        'name': 'string',
        'id': 'string',
        'arn': 'string',
        'clusterId': 'string',
        'createdAt': datetime(2015, 1, 1),
        'modifiedAt': datetime(2015, 1, 1),
        'status': 'CREATING'|'ACTIVE'|'UPDATING'|'DELETING'|'CREATE_FAILED'|'DELETE_FAILED'|'UPDATE_FAILED'|'DELETED',
        'amiId': 'string',
        'subnetIds': [
            'string',
        ],
        'purchaseOption': 'ONDEMAND'|'SPOT',
        'customLaunchTemplate': {
            'id': 'string',
            'version': 'string'
        },
        'iamInstanceProfileArn': 'string',
        'scalingConfiguration': {
            'minInstanceCount': 123,
            'maxInstanceCount': 123
        },
        'instanceConfigs': [
            {
                'instanceType': 'string'
            },
        ],
        'spotOptions': {
            'allocationStrategy': 'lowest-price'|'capacity-optimized'|'price-capacity-optimized'
        },
        'slurmConfiguration': {
            'slurmCustomSettings': [
                {
                    'parameterName': 'string',
                    'parameterValue': 'string'
                },
            ]
        },
        'errorInfo': [
            {
                'code': 'string',
                'message': 'string'
            },
        ]
    }
}

Response Structure

(dict) –
- computeNodeGroup (dict) –
  
  A compute node group associated with a cluster.
  - name (string) –
    
    The name that identifies the compute node group.
  - id (string) –
    
    The generated unique ID of the compute node group.
  - arn (string) –
    
    The unique Amazon Resource Name (ARN) of the compute node group.
  - clusterId (string) –
    
    The ID of the cluster of the compute node group.
  - createdAt (datetime) –
    
    The date and time the resource was created.
  - modifiedAt (datetime) –
    
    The date and time the resource was modified.
  - status (string) –
    
    The provisioning status of the compute node group.
    
    Note
    The provisioning status doesn’t indicate the overall health of the compute node group.
  - amiId (string) –
    
    The ID of the Amazon Machine Image (AMI) that Amazon Web Services PCS uses to launch instances. If not provided, Amazon Web Services PCS uses the AMI ID specified in the custom launch template.
  - subnetIds (list) –
    
    The list of subnet IDs where instances are provisioned by the compute node group. The subnets must be in the same VPC as the cluster.
    - (string) –
  - purchaseOption (string) –
    
    Specifies how EC2 instances are purchased on your behalf. Amazon Web Services PCS supports On-Demand and Spot instances. For more information, see Instance purchasing options in the Amazon Elastic Compute Cloud User Guide. If you don’t provide this option, it defaults to On-Demand.
  - customLaunchTemplate (dict) –
    
    An Amazon EC2 launch template Amazon Web Services PCS uses to launch compute nodes.
    - id (string) –
      
      The ID of the EC2 launch template to use to provision instances.
      
      Example: lt-xxxx
    - version (string) –
      
      The version of the EC2 launch template to use to provision instances.
  - iamInstanceProfileArn (string) –
    
    The Amazon Resource Name (ARN) of the IAM instance profile used to pass an IAM role when launching EC2 instances. The role contained in your instance profile must have pcs:RegisterComputeNodeGroupInstance permissions attached to provision instances correctly.
  - scalingConfiguration (dict) –
    
    Specifies the boundaries of the compute node group auto scaling.
    - minInstanceCount (integer) –
      
      The lower bound of the number of instances allowed in the compute fleet.
    - maxInstanceCount (integer) –
      
      The upper bound of the number of instances allowed in the compute fleet.
  - instanceConfigs (list) –
    
    A list of EC2 instance configurations that Amazon Web Services PCS can provision in the compute node group.
    - (dict) –
      
      An EC2 instance configuration Amazon Web Services PCS uses to launch compute nodes.
      - instanceType (string) –
        
        The EC2 instance type that Amazon Web Services PCS can provision in the compute node group.
        
        Example: t2.xlarge
  - spotOptions (dict) –
    
    Additional configuration when you specify SPOT as the purchaseOption for the CreateComputeNodeGroup API action.
    - allocationStrategy (string) –
      
      The Amazon EC2 allocation strategy Amazon Web Services PCS uses to provision EC2 instances. Amazon Web Services PCS supports lowest price, capacity optimized, and price capacity optimized. For more information, see Use allocation strategies to determine how EC2 Fleet or Spot Fleet fulfills Spot and On-Demand capacity in the Amazon Elastic Compute Cloud User Guide. If you don’t provide this option, it defaults to price capacity optimized.
  - slurmConfiguration (dict) –
    
    Additional options related to the Slurm scheduler.
    - slurmCustomSettings (list) –
      
      Additional Slurm-specific configuration that directly maps to Slurm settings.
      - (dict) –
        
        Additional settings that directly map to Slurm settings.
        
        parameterName (string) –
        
        Amazon Web Services PCS supports configuration of the following Slurm parameters: Prolog, Epilog, and SelectTypeParameters.
        
        parameterValue (string) –
        
        The values for the configured Slurm settings.
  - errorInfo (list) –
    
    The list of errors that occurred during compute node group provisioning.
    - (dict) –
      
      An error that occurred during resource creation.
      - code (string) –
        
        The short-form error code.
      - message (string) –
        
        The detailed error information.

Exceptions

ParallelComputingService.Client.exceptions.ThrottlingException
ParallelComputingService.Client.exceptions.ValidationException
ParallelComputingService.Client.exceptions.ConflictException
ParallelComputingService.Client.exceptions.ResourceNotFoundException
ParallelComputingService.Client.exceptions.InternalServerException
ParallelComputingService.Client.exceptions.AccessDeniedException