Class: Aws::EMR::Types::InstanceFleet

Inherits:

Struct

• Object
• Struct
• Aws::EMR::Types::InstanceFleet

Includes:

Structure

Defined in:

lib/aws-sdk-emr/types.rb

Overview

Describes an instance fleet, which is a group of EC2 instances that host a particular node type (master, core, or task) in an Amazon EMR cluster. Instance fleets can consist of a mix of instance types and On-Demand and Spot instances, which are provisioned to meet a defined target capacity.

<note markdown=“1”> The instance fleet configuration is available only in Amazon EMR versions 4.8.0 and later, excluding 5.0.x versions.

</note>

See Also:

• AWS API Documentation

Instance Attribute Summary

• #id ⇒ String

  The unique identifier of the instance fleet.

• #instance_fleet_type ⇒ String

  The node type that the instance fleet hosts.

• #instance_type_specifications ⇒ Array<Types::InstanceTypeSpecification>

  The specification for the instance types that comprise an instance fleet.

• #launch_specifications ⇒ Types::InstanceFleetProvisioningSpecifications

  Describes the launch specification for an instance fleet.

• #name ⇒ String

  A friendly name for the instance fleet.

• #provisioned_on_demand_capacity ⇒ Integer

  The number of On-Demand units that have been provisioned for the instance fleet to fulfill ‘TargetOnDemandCapacity`.

• #provisioned_spot_capacity ⇒ Integer

  The number of Spot units that have been provisioned for this instance fleet to fulfill ‘TargetSpotCapacity`.

• #status ⇒ Types::InstanceFleetStatus

  The current status of the instance fleet.

• #target_on_demand_capacity ⇒ Integer

  The target capacity of On-Demand units for the instance fleet, which determines how many On-Demand instances to provision.

• #target_spot_capacity ⇒ Integer

  The target capacity of Spot units for the instance fleet, which determines how many Spot instances to provision.

Instance Attribute Details

#id ⇒ String

The unique identifier of the instance fleet.

Returns:

• (String)

# File 'lib/aws-sdk-emr/types.rb', line 1781

class InstanceFleet < Struct.new(
  :id,
  :name,
  :status,
  :instance_fleet_type,
  :target_on_demand_capacity,
  :target_spot_capacity,
  :provisioned_on_demand_capacity,
  :provisioned_spot_capacity,
  :instance_type_specifications,
  :launch_specifications)
  include Aws::Structure
end

#instance_fleet_type ⇒ String

The node type that the instance fleet hosts. Valid values are MASTER, CORE, or TASK.

Returns:

• (String)

# File 'lib/aws-sdk-emr/types.rb', line 1781

class InstanceFleet < Struct.new(
  :id,
  :name,
  :status,
  :instance_fleet_type,
  :target_on_demand_capacity,
  :target_spot_capacity,
  :provisioned_on_demand_capacity,
  :provisioned_spot_capacity,
  :instance_type_specifications,
  :launch_specifications)
  include Aws::Structure
end

#instance_type_specifications ⇒ Array<Types::InstanceTypeSpecification>

The specification for the instance types that comprise an instance fleet. Up to five unique instance specifications may be defined for each instance fleet.

Returns:

• (Array<Types::InstanceTypeSpecification>)

# File 'lib/aws-sdk-emr/types.rb', line 1781

class InstanceFleet < Struct.new(
  :id,
  :name,
  :status,
  :instance_fleet_type,
  :target_on_demand_capacity,
  :target_spot_capacity,
  :provisioned_on_demand_capacity,
  :provisioned_spot_capacity,
  :instance_type_specifications,
  :launch_specifications)
  include Aws::Structure
end

#launch_specifications ⇒ Types::InstanceFleetProvisioningSpecifications

Describes the launch specification for an instance fleet.

Returns:

• (Types::InstanceFleetProvisioningSpecifications)

# File 'lib/aws-sdk-emr/types.rb', line 1781

class InstanceFleet < Struct.new(
  :id,
  :name,
  :status,
  :instance_fleet_type,
  :target_on_demand_capacity,
  :target_spot_capacity,
  :provisioned_on_demand_capacity,
  :provisioned_spot_capacity,
  :instance_type_specifications,
  :launch_specifications)
  include Aws::Structure
end

#name ⇒ String

A friendly name for the instance fleet.

Returns:

• (String)

# File 'lib/aws-sdk-emr/types.rb', line 1781

class InstanceFleet < Struct.new(
  :id,
  :name,
  :status,
  :instance_fleet_type,
  :target_on_demand_capacity,
  :target_spot_capacity,
  :provisioned_on_demand_capacity,
  :provisioned_spot_capacity,
  :instance_type_specifications,
  :launch_specifications)
  include Aws::Structure
end

#provisioned_on_demand_capacity ⇒ Integer

The number of On-Demand units that have been provisioned for the instance fleet to fulfill ‘TargetOnDemandCapacity`. This provisioned capacity might be less than or greater than `TargetOnDemandCapacity`.

Returns:

• (Integer)

# File 'lib/aws-sdk-emr/types.rb', line 1781

class InstanceFleet < Struct.new(
  :id,
  :name,
  :status,
  :instance_fleet_type,
  :target_on_demand_capacity,
  :target_spot_capacity,
  :provisioned_on_demand_capacity,
  :provisioned_spot_capacity,
  :instance_type_specifications,
  :launch_specifications)
  include Aws::Structure
end

#provisioned_spot_capacity ⇒ Integer

The number of Spot units that have been provisioned for this instance fleet to fulfill ‘TargetSpotCapacity`. This provisioned capacity might be less than or greater than `TargetSpotCapacity`.

Returns:

• (Integer)

# File 'lib/aws-sdk-emr/types.rb', line 1781

class InstanceFleet < Struct.new(
  :id,
  :name,
  :status,
  :instance_fleet_type,
  :target_on_demand_capacity,
  :target_spot_capacity,
  :provisioned_on_demand_capacity,
  :provisioned_spot_capacity,
  :instance_type_specifications,
  :launch_specifications)
  include Aws::Structure
end

#status ⇒ Types::InstanceFleetStatus

The current status of the instance fleet.

Returns:

• (Types::InstanceFleetStatus)

# File 'lib/aws-sdk-emr/types.rb', line 1781

class InstanceFleet < Struct.new(
  :id,
  :name,
  :status,
  :instance_fleet_type,
  :target_on_demand_capacity,
  :target_spot_capacity,
  :provisioned_on_demand_capacity,
  :provisioned_spot_capacity,
  :instance_type_specifications,
  :launch_specifications)
  include Aws::Structure
end

#target_on_demand_capacity ⇒ Integer

The target capacity of On-Demand units for the instance fleet, which determines how many On-Demand instances to provision. When the instance fleet launches, Amazon EMR tries to provision On-Demand instances as specified by InstanceTypeConfig. Each instance configuration has a specified ‘WeightedCapacity`. When an On-Demand instance is provisioned, the `WeightedCapacity` units count toward the target capacity. Amazon EMR provisions instances until the target capacity is totally fulfilled, even if this results in an overage. For example, if there are 2 units remaining to fulfill capacity, and Amazon EMR can only provision an instance with a `WeightedCapacity` of 5 units, the instance is provisioned, and the target capacity is exceeded by 3 units. You can use InstanceFleet$ProvisionedOnDemandCapacity to determine the Spot capacity units that have been provisioned for the instance fleet.

<note markdown=“1”> If not specified or set to 0, only Spot instances are provisioned for the instance fleet using ‘TargetSpotCapacity`. At least one of `TargetSpotCapacity` and `TargetOnDemandCapacity` should be greater than 0. For a master instance fleet, only one of `TargetSpotCapacity` and `TargetOnDemandCapacity` can be specified, and its value must be 1.

</note>

Returns:

• (Integer)

# File 'lib/aws-sdk-emr/types.rb', line 1781

class InstanceFleet < Struct.new(
  :id,
  :name,
  :status,
  :instance_fleet_type,
  :target_on_demand_capacity,
  :target_spot_capacity,
  :provisioned_on_demand_capacity,
  :provisioned_spot_capacity,
  :instance_type_specifications,
  :launch_specifications)
  include Aws::Structure
end

#target_spot_capacity ⇒ Integer

The target capacity of Spot units for the instance fleet, which determines how many Spot instances to provision. When the instance fleet launches, Amazon EMR tries to provision Spot instances as specified by InstanceTypeConfig. Each instance configuration has a specified ‘WeightedCapacity`. When a Spot instance is provisioned, the `WeightedCapacity` units count toward the target capacity. Amazon EMR provisions instances until the target capacity is totally fulfilled, even if this results in an overage. For example, if there are 2 units remaining to fulfill capacity, and Amazon EMR can only provision an instance with a `WeightedCapacity` of 5 units, the instance is provisioned, and the target capacity is exceeded by 3 units. You can use InstanceFleet$ProvisionedSpotCapacity to determine the Spot capacity units that have been provisioned for the instance fleet.

<note markdown=“1”> If not specified or set to 0, only On-Demand instances are provisioned for the instance fleet. At least one of ‘TargetSpotCapacity` and `TargetOnDemandCapacity` should be greater than 0. For a master instance fleet, only one of `TargetSpotCapacity` and `TargetOnDemandCapacity` can be specified, and its value must be 1.

</note>

Returns:

• (Integer)

# File 'lib/aws-sdk-emr/types.rb', line 1781

class InstanceFleet < Struct.new(
  :id,
  :name,
  :status,
  :instance_fleet_type,
  :target_on_demand_capacity,
  :target_spot_capacity,
  :provisioned_on_demand_capacity,
  :provisioned_spot_capacity,
  :instance_type_specifications,
  :launch_specifications)
  include Aws::Structure
end