DescribeFleets - Amazon Elastic Compute Cloud


Describes the specified EC2 Fleets or all of your EC2 Fleets.

For more information, see Monitor your EC2 Fleet in the Amazon EC2 User Guide.

Request Parameters

The following parameters are for this specific action. For more information about required and optional parameters that are common to all actions, see Common Query Parameters.


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.

Type: Boolean

Required: No


The filters.

  • activity-status - The progress of the EC2 Fleet ( error | pending-fulfillment | pending-termination | fulfilled).

  • excess-capacity-termination-policy - Indicates whether to terminate running instances if the target capacity is decreased below the current EC2 Fleet size (true | false).

  • fleet-state - The state of the EC2 Fleet (submitted | active | deleted | failed | deleted-running | deleted-terminating | modifying).

  • replace-unhealthy-instances - Indicates whether EC2 Fleet should replace unhealthy instances (true | false).

  • type - The type of request (instant | request | maintain).

Type: Array of Filter objects

Required: No


The IDs of the EC2 Fleets.


If a fleet is of type instant, you must specify the fleet ID, otherwise it does not appear in the response.

Type: Array of strings

Required: No


The maximum number of results to return in a single call. Specify a value between 1 and 1000. The default value is 1000. To retrieve the remaining results, make another call with the returned NextToken value.

Type: Integer

Required: No


The token for the next set of results.

Type: String

Required: No

Response Elements

The following elements are returned by the service.


Information about the EC2 Fleets.

Type: Array of FleetData objects


The token for the next set of results.

Type: String


The ID of the request.

Type: String


For information about the errors that are common to all actions, see Common client error codes.

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: