Class: Aws::EMR::Types::InstanceGroup

Inherits:
Struct
  • Object
show all
Defined in:
gems/aws-sdk-emr/lib/aws-sdk-emr/types.rb

Overview

This entity represents an instance group, which is a group of instances that have common purpose. For example, CORE instance group is used for HDFS.

Constant Summary collapse

SENSITIVE =
[]

Instance Attribute Summary collapse

Instance Attribute Details

#auto_scaling_policyTypes::AutoScalingPolicyDescription

An automatic scaling policy for a core instance group or task instance group in an Amazon EMR cluster. The automatic scaling policy defines how an instance group dynamically adds and terminates EC2 instances in response to the value of a CloudWatch metric. See PutAutoScalingPolicy.



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# File 'gems/aws-sdk-emr/lib/aws-sdk-emr/types.rb', line 3217

class InstanceGroup < Struct.new(
  :id,
  :name,
  :market,
  :instance_group_type,
  :bid_price,
  :instance_type,
  :requested_instance_count,
  :running_instance_count,
  :status,
  :configurations,
  :configurations_version,
  :last_successfully_applied_configurations,
  :last_successfully_applied_configurations_version,
  :ebs_block_devices,
  :ebs_optimized,
  :shrink_policy,
  :auto_scaling_policy,
  :custom_ami_id)
  SENSITIVE = []
  include Aws::Structure
end

#bid_priceString

If specified, indicates that the instance group uses Spot Instances. This is the maximum price you are willing to pay for Spot Instances. Specify OnDemandPrice to set the amount equal to the On-Demand price, or specify an amount in USD.

Returns:

  • (String)


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# File 'gems/aws-sdk-emr/lib/aws-sdk-emr/types.rb', line 3217

class InstanceGroup < Struct.new(
  :id,
  :name,
  :market,
  :instance_group_type,
  :bid_price,
  :instance_type,
  :requested_instance_count,
  :running_instance_count,
  :status,
  :configurations,
  :configurations_version,
  :last_successfully_applied_configurations,
  :last_successfully_applied_configurations_version,
  :ebs_block_devices,
  :ebs_optimized,
  :shrink_policy,
  :auto_scaling_policy,
  :custom_ami_id)
  SENSITIVE = []
  include Aws::Structure
end

#configurationsArray<Types::Configuration>

Amazon EMR releases 4.x or later.

The list of configurations supplied for an Amazon EMR cluster instance group. You can specify a separate configuration for each instance group (master, core, and task).

Returns:



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# File 'gems/aws-sdk-emr/lib/aws-sdk-emr/types.rb', line 3217

class InstanceGroup < Struct.new(
  :id,
  :name,
  :market,
  :instance_group_type,
  :bid_price,
  :instance_type,
  :requested_instance_count,
  :running_instance_count,
  :status,
  :configurations,
  :configurations_version,
  :last_successfully_applied_configurations,
  :last_successfully_applied_configurations_version,
  :ebs_block_devices,
  :ebs_optimized,
  :shrink_policy,
  :auto_scaling_policy,
  :custom_ami_id)
  SENSITIVE = []
  include Aws::Structure
end

#configurations_versionInteger

The version number of the requested configuration specification for this instance group.

Returns:

  • (Integer)


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# File 'gems/aws-sdk-emr/lib/aws-sdk-emr/types.rb', line 3217

class InstanceGroup < Struct.new(
  :id,
  :name,
  :market,
  :instance_group_type,
  :bid_price,
  :instance_type,
  :requested_instance_count,
  :running_instance_count,
  :status,
  :configurations,
  :configurations_version,
  :last_successfully_applied_configurations,
  :last_successfully_applied_configurations_version,
  :ebs_block_devices,
  :ebs_optimized,
  :shrink_policy,
  :auto_scaling_policy,
  :custom_ami_id)
  SENSITIVE = []
  include Aws::Structure
end

#custom_ami_idString

The custom AMI ID to use for the provisioned instance group.

Returns:

  • (String)


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# File 'gems/aws-sdk-emr/lib/aws-sdk-emr/types.rb', line 3217

class InstanceGroup < Struct.new(
  :id,
  :name,
  :market,
  :instance_group_type,
  :bid_price,
  :instance_type,
  :requested_instance_count,
  :running_instance_count,
  :status,
  :configurations,
  :configurations_version,
  :last_successfully_applied_configurations,
  :last_successfully_applied_configurations_version,
  :ebs_block_devices,
  :ebs_optimized,
  :shrink_policy,
  :auto_scaling_policy,
  :custom_ami_id)
  SENSITIVE = []
  include Aws::Structure
end

#ebs_block_devicesArray<Types::EbsBlockDevice>

The EBS block devices that are mapped to this instance group.

Returns:



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# File 'gems/aws-sdk-emr/lib/aws-sdk-emr/types.rb', line 3217

class InstanceGroup < Struct.new(
  :id,
  :name,
  :market,
  :instance_group_type,
  :bid_price,
  :instance_type,
  :requested_instance_count,
  :running_instance_count,
  :status,
  :configurations,
  :configurations_version,
  :last_successfully_applied_configurations,
  :last_successfully_applied_configurations_version,
  :ebs_block_devices,
  :ebs_optimized,
  :shrink_policy,
  :auto_scaling_policy,
  :custom_ami_id)
  SENSITIVE = []
  include Aws::Structure
end

#ebs_optimizedBoolean

If the instance group is EBS-optimized. An Amazon EBS-optimized instance uses an optimized configuration stack and provides additional, dedicated capacity for Amazon EBS I/O.

Returns:

  • (Boolean)


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# File 'gems/aws-sdk-emr/lib/aws-sdk-emr/types.rb', line 3217

class InstanceGroup < Struct.new(
  :id,
  :name,
  :market,
  :instance_group_type,
  :bid_price,
  :instance_type,
  :requested_instance_count,
  :running_instance_count,
  :status,
  :configurations,
  :configurations_version,
  :last_successfully_applied_configurations,
  :last_successfully_applied_configurations_version,
  :ebs_block_devices,
  :ebs_optimized,
  :shrink_policy,
  :auto_scaling_policy,
  :custom_ami_id)
  SENSITIVE = []
  include Aws::Structure
end

#idString

The identifier of the instance group.

Returns:

  • (String)


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# File 'gems/aws-sdk-emr/lib/aws-sdk-emr/types.rb', line 3217

class InstanceGroup < Struct.new(
  :id,
  :name,
  :market,
  :instance_group_type,
  :bid_price,
  :instance_type,
  :requested_instance_count,
  :running_instance_count,
  :status,
  :configurations,
  :configurations_version,
  :last_successfully_applied_configurations,
  :last_successfully_applied_configurations_version,
  :ebs_block_devices,
  :ebs_optimized,
  :shrink_policy,
  :auto_scaling_policy,
  :custom_ami_id)
  SENSITIVE = []
  include Aws::Structure
end

#instance_group_typeString

The type of the instance group. Valid values are MASTER, CORE or TASK.

Returns:

  • (String)


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# File 'gems/aws-sdk-emr/lib/aws-sdk-emr/types.rb', line 3217

class InstanceGroup < Struct.new(
  :id,
  :name,
  :market,
  :instance_group_type,
  :bid_price,
  :instance_type,
  :requested_instance_count,
  :running_instance_count,
  :status,
  :configurations,
  :configurations_version,
  :last_successfully_applied_configurations,
  :last_successfully_applied_configurations_version,
  :ebs_block_devices,
  :ebs_optimized,
  :shrink_policy,
  :auto_scaling_policy,
  :custom_ami_id)
  SENSITIVE = []
  include Aws::Structure
end

#instance_typeString

The EC2 instance type for all instances in the instance group.

Returns:

  • (String)


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# File 'gems/aws-sdk-emr/lib/aws-sdk-emr/types.rb', line 3217

class InstanceGroup < Struct.new(
  :id,
  :name,
  :market,
  :instance_group_type,
  :bid_price,
  :instance_type,
  :requested_instance_count,
  :running_instance_count,
  :status,
  :configurations,
  :configurations_version,
  :last_successfully_applied_configurations,
  :last_successfully_applied_configurations_version,
  :ebs_block_devices,
  :ebs_optimized,
  :shrink_policy,
  :auto_scaling_policy,
  :custom_ami_id)
  SENSITIVE = []
  include Aws::Structure
end

#last_successfully_applied_configurationsArray<Types::Configuration>

A list of configurations that were successfully applied for an instance group last time.

Returns:



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# File 'gems/aws-sdk-emr/lib/aws-sdk-emr/types.rb', line 3217

class InstanceGroup < Struct.new(
  :id,
  :name,
  :market,
  :instance_group_type,
  :bid_price,
  :instance_type,
  :requested_instance_count,
  :running_instance_count,
  :status,
  :configurations,
  :configurations_version,
  :last_successfully_applied_configurations,
  :last_successfully_applied_configurations_version,
  :ebs_block_devices,
  :ebs_optimized,
  :shrink_policy,
  :auto_scaling_policy,
  :custom_ami_id)
  SENSITIVE = []
  include Aws::Structure
end

#last_successfully_applied_configurations_versionInteger

The version number of a configuration specification that was successfully applied for an instance group last time.

Returns:

  • (Integer)


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# File 'gems/aws-sdk-emr/lib/aws-sdk-emr/types.rb', line 3217

class InstanceGroup < Struct.new(
  :id,
  :name,
  :market,
  :instance_group_type,
  :bid_price,
  :instance_type,
  :requested_instance_count,
  :running_instance_count,
  :status,
  :configurations,
  :configurations_version,
  :last_successfully_applied_configurations,
  :last_successfully_applied_configurations_version,
  :ebs_block_devices,
  :ebs_optimized,
  :shrink_policy,
  :auto_scaling_policy,
  :custom_ami_id)
  SENSITIVE = []
  include Aws::Structure
end

#marketString

The marketplace to provision instances for this group. Valid values are ON_DEMAND or SPOT.

Returns:

  • (String)


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# File 'gems/aws-sdk-emr/lib/aws-sdk-emr/types.rb', line 3217

class InstanceGroup < Struct.new(
  :id,
  :name,
  :market,
  :instance_group_type,
  :bid_price,
  :instance_type,
  :requested_instance_count,
  :running_instance_count,
  :status,
  :configurations,
  :configurations_version,
  :last_successfully_applied_configurations,
  :last_successfully_applied_configurations_version,
  :ebs_block_devices,
  :ebs_optimized,
  :shrink_policy,
  :auto_scaling_policy,
  :custom_ami_id)
  SENSITIVE = []
  include Aws::Structure
end

#nameString

The name of the instance group.

Returns:

  • (String)


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# File 'gems/aws-sdk-emr/lib/aws-sdk-emr/types.rb', line 3217

class InstanceGroup < Struct.new(
  :id,
  :name,
  :market,
  :instance_group_type,
  :bid_price,
  :instance_type,
  :requested_instance_count,
  :running_instance_count,
  :status,
  :configurations,
  :configurations_version,
  :last_successfully_applied_configurations,
  :last_successfully_applied_configurations_version,
  :ebs_block_devices,
  :ebs_optimized,
  :shrink_policy,
  :auto_scaling_policy,
  :custom_ami_id)
  SENSITIVE = []
  include Aws::Structure
end

#requested_instance_countInteger

The target number of instances for the instance group.

Returns:

  • (Integer)


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# File 'gems/aws-sdk-emr/lib/aws-sdk-emr/types.rb', line 3217

class InstanceGroup < Struct.new(
  :id,
  :name,
  :market,
  :instance_group_type,
  :bid_price,
  :instance_type,
  :requested_instance_count,
  :running_instance_count,
  :status,
  :configurations,
  :configurations_version,
  :last_successfully_applied_configurations,
  :last_successfully_applied_configurations_version,
  :ebs_block_devices,
  :ebs_optimized,
  :shrink_policy,
  :auto_scaling_policy,
  :custom_ami_id)
  SENSITIVE = []
  include Aws::Structure
end

#running_instance_countInteger

The number of instances currently running in this instance group.

Returns:

  • (Integer)


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# File 'gems/aws-sdk-emr/lib/aws-sdk-emr/types.rb', line 3217

class InstanceGroup < Struct.new(
  :id,
  :name,
  :market,
  :instance_group_type,
  :bid_price,
  :instance_type,
  :requested_instance_count,
  :running_instance_count,
  :status,
  :configurations,
  :configurations_version,
  :last_successfully_applied_configurations,
  :last_successfully_applied_configurations_version,
  :ebs_block_devices,
  :ebs_optimized,
  :shrink_policy,
  :auto_scaling_policy,
  :custom_ami_id)
  SENSITIVE = []
  include Aws::Structure
end

#shrink_policyTypes::ShrinkPolicy

Policy for customizing shrink operations.

Returns:



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# File 'gems/aws-sdk-emr/lib/aws-sdk-emr/types.rb', line 3217

class InstanceGroup < Struct.new(
  :id,
  :name,
  :market,
  :instance_group_type,
  :bid_price,
  :instance_type,
  :requested_instance_count,
  :running_instance_count,
  :status,
  :configurations,
  :configurations_version,
  :last_successfully_applied_configurations,
  :last_successfully_applied_configurations_version,
  :ebs_block_devices,
  :ebs_optimized,
  :shrink_policy,
  :auto_scaling_policy,
  :custom_ami_id)
  SENSITIVE = []
  include Aws::Structure
end

#statusTypes::InstanceGroupStatus

The current status of the instance group.



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# File 'gems/aws-sdk-emr/lib/aws-sdk-emr/types.rb', line 3217

class InstanceGroup < Struct.new(
  :id,
  :name,
  :market,
  :instance_group_type,
  :bid_price,
  :instance_type,
  :requested_instance_count,
  :running_instance_count,
  :status,
  :configurations,
  :configurations_version,
  :last_successfully_applied_configurations,
  :last_successfully_applied_configurations_version,
  :ebs_block_devices,
  :ebs_optimized,
  :shrink_policy,
  :auto_scaling_policy,
  :custom_ami_id)
  SENSITIVE = []
  include Aws::Structure
end