DescribeFleetLocationCapacity - Amazon GameLift


Retrieves the resource capacity settings for a fleet location. The data returned includes the current capacity (number of EC2 instances) and some scaling settings for the requested fleet location. For a container fleet, this operation also returns counts for replica container groups.

Use this operation to retrieve capacity information for a fleet's remote location or home Region (you can also retrieve home Region capacity by calling DescribeFleetCapacity).

To retrieve capacity data, identify a fleet and location.

If successful, a FleetCapacity object is returned for the requested fleet location.

Learn more

Setting up Amazon GameLift fleets

GameLift metrics for fleets

Request Syntax

{ "FleetId": "string", "Location": "string" }

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

The request accepts the following data in JSON format.


In the following list, the required parameters are described first.


A unique identifier for the fleet to request location capacity for. You can use either the fleet ID or ARN value.

Type: String

Pattern: ^fleet-\S+|^arn:.*:fleet\/fleet-\S+

Required: Yes


The fleet location to retrieve capacity information for. Specify a location in the form of an AWS Region code, such as us-west-2.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 64.

Pattern: ^[A-Za-z0-9\-]+

Required: Yes

Response Syntax

{ "FleetCapacity": { "FleetArn": "string", "FleetId": "string", "InstanceCounts": { "ACTIVE": number, "DESIRED": number, "IDLE": number, "MAXIMUM": number, "MINIMUM": number, "PENDING": number, "TERMINATING": number }, "InstanceType": "string", "Location": "string", "ReplicaContainerGroupCounts": { "ACTIVE": number, "IDLE": number, "PENDING": number, "TERMINATING": number } } }

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.


Resource capacity information for the requested fleet location. Capacity objects are returned only for fleets and locations that currently exist. Changes in desired instance value can take up to 1 minute to be reflected.

Type: FleetCapacity object


For information about the errors that are common to all actions, see Common Errors.


The service encountered an unrecoverable internal failure while processing the request. Clients can retry such requests immediately or after a waiting period.

HTTP Status Code: 500


One or more parameter values in the request are invalid. Correct the invalid parameter values before retrying.

HTTP Status Code: 400


The requested resources was not found. The resource was either not created yet or deleted.

HTTP Status Code: 400


The client failed authentication. Clients should not retry such requests.

HTTP Status Code: 400


The requested operation is not supported in the Region specified.

HTTP Status Code: 400


Request capacity information for a fleet location

This example retrieves fleet capacity information for a remote fleet location. The returned FleetCapacity object describes the capacity at the specified location only. To get a fleet's current total capacity, first call DescribeFleetLocationAttributes to get a list of the fleet's remote locations, and then call DescribeFleetLocationCapacity for each remote location plus the home Region, and sum the results for active instances.

HTTP requests are authenticated using an AWS Signature Version 4 signature in the Authorization header field.

Sample Request

{ "FleetId": "fleet-2222bbbb-33cc-44dd-55ee-6666ffff77aa", "Location": "sa-east-1" }

Sample Response

{ "FleetCapacity": { "FleetId": "fleet-2222bbbb-33cc-44dd-55ee-6666ffff77aa", "FleetArn": "arn:aws:gamelift:us-west-2::fleet/fleet-2222bbbb-33cc-44dd-55ee-6666ffff77aa", "InstanceCounts": { "DESIRED": 10, "MINIMUM": 1, "MAXIMUM": 20, "PENDING": 0, "ACTIVE": 10, "IDLE": 3, "TERMINATING": 0 }, "InstanceType": "c5.large", "Location": "sa-east-1" } ] }

See Also

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