package awsec2


// Which strategy to use when launching instances.
type PlacementGroupStrategy string

const (
	// Packs instances close together inside an Availability Zone.
	//
	// This strategy enables workloads to achieve the low-latency network
	// performance necessary for tightly-coupled node-to-node communication that
	// is typical of high-performance computing (HPC) applications.
	PlacementGroupStrategy_CLUSTER PlacementGroupStrategy = "CLUSTER"
	// Spreads your instances across logical partitions such that groups of instances in one partition do not share the underlying hardware with groups of instances in different partitions.
	//
	// This strategy is typically used by large distributed and replicated workloads,
	// such as Hadoop, Cassandra, and Kafka.
	PlacementGroupStrategy_PARTITION PlacementGroupStrategy = "PARTITION"
	// Strictly places a small group of instances across distinct underlying hardware to reduce correlated failures.
	PlacementGroupStrategy_SPREAD PlacementGroupStrategy = "SPREAD"
)