You are viewing documentation for version 2 of the AWS SDK for Ruby. Version 3 documentation can be found here.

Class: Aws::EMR::Types::PlacementType

Inherits:

Struct

Object
Struct
Aws::EMR::Types::PlacementType

show all

Defined in:: (unknown)

Overview

Note:

When passing PlacementType as input to an Aws::Client method, you can use a vanilla Hash:

{
  availability_zone: "XmlString",
  availability_zones: ["XmlStringMaxLen256"],
}

The Amazon EC2 Availability Zone configuration of the cluster (job flow).

Returned by:

Instance Attribute Summary collapse

#availability_zone ⇒ String
The Amazon EC2 Availability Zone for the cluster.
#availability_zones ⇒ Array<String>
When multiple Availability Zones are specified, Amazon EMR evaluates them and launches instances in the optimal Availability Zone.

Instance Attribute Details

#availability_zone ⇒ `String`

The Amazon EC2 Availability Zone for the cluster. AvailabilityZone is used for uniform instance groups, while AvailabilityZones (plural) is used for instance fleets.

Returns:

(String) —
The Amazon EC2 Availability Zone for the cluster.

#availability_zones ⇒ `Array<String>`

When multiple Availability Zones are specified, Amazon EMR evaluates them and launches instances in the optimal Availability Zone. AvailabilityZones is used for instance fleets, while AvailabilityZone (singular) is used for uniform instance groups.

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