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[ aws . ec2 ]

create-placement-group

Description

Creates a placement group in which to launch instances. The strategy of the placement group determines how the instances are organized within the group.

A cluster placement group is a logical grouping of instances within a single Availability Zone that benefit from low network latency, high network throughput. A spread placement group places instances on distinct hardware. A partition placement group places groups of instances in different partitions, where instances in one partition do not share the same hardware with instances in another partition.

For more information, see Placement Groups in the Amazon Elastic Compute Cloud User Guide .

See also: AWS API Documentation

See 'aws help' for descriptions of global parameters.

Synopsis

  create-placement-group
[--dry-run | --no-dry-run]
[--group-name <value>]
[--strategy <value>]
[--partition-count <value>]
[--cli-input-json <value>]
[--generate-cli-skeleton <value>]

Options

--dry-run | --no-dry-run (boolean)

Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is DryRunOperation . Otherwise, it is UnauthorizedOperation .

--group-name (string)

A name for the placement group. Must be unique within the scope of your account for the Region.

Constraints: Up to 255 ASCII characters

--strategy (string)

The placement strategy.

Possible values:

  • cluster
  • spread
  • partition

--partition-count (integer)

The number of partitions. Valid only when Strategy is set to partition .

--cli-input-json (string) Performs service operation based on the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, the CLI values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

See 'aws help' for descriptions of global parameters.

Examples

To create a placement group

This example command creates a placement group with the specified name.

Command:

aws ec2 create-placement-group --group-name my-cluster --strategy cluster

To create a partition placement group

This example command creates a partition placement group named HDFS-Group-A with five partitions.

Command:

aws ec2 create-placement-group --group-name HDFS-Group-A --strategy partition --partition-count 5

Output

None