Struct aws_sdk_emr::model::InstanceFleetConfig

#[non_exhaustive]
pub struct InstanceFleetConfig { /* private fields */ }

The configuration that defines an instance fleet.

The instance fleet configuration is available only in Amazon EMR versions 4.8.0 and later, excluding 5.0.x versions.

Implementations

impl InstanceFleetConfig

pub fn name(&self) -> Option<&str>

The friendly name of the instance fleet.

pub fn instance_fleet_type(&self) -> Option<&InstanceFleetType>

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

pub fn target_on_demand_capacity(&self) -> Option<i32>

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.

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.

pub fn target_spot_capacity(&self) -> Option<i32>

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.

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.

pub fn instance_type_configs(&self) -> Option<&[InstanceTypeConfig]>

The instance type configurations that define the EC2 instances in the instance fleet.

pub fn launch_specifications(
    &self
) -> Option<&InstanceFleetProvisioningSpecifications>

The launch specification for the instance fleet.

impl InstanceFleetConfig

pub fn builder() -> Builder

Creates a new builder-style object to manufacture InstanceFleetConfig.

Trait Implementations

impl Clone for InstanceFleetConfig

fn clone(&self) -> InstanceFleetConfig

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for InstanceFleetConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq<InstanceFleetConfig> for InstanceFleetConfig

fn eq(&self, other: &InstanceFleetConfig) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for InstanceFleetConfig