# DescribeScalingActivities
Provides descriptive information about the scaling activities in the specified namespace from the previous six weeks.
You can filter the results using `ResourceId` and `ScalableDimension`.
For information about viewing scaling activities using the AWS CLI, see [Scaling activities for Application Auto Scaling](https://docs.aws.amazon.com/autoscaling/application/userguide/application-auto-scaling-scaling-activities.html).
## Request Syntax
```
{
"IncludeNotScaledActivities": boolean,
"MaxResults": number,
"NextToken": "string",
"ResourceId": "string",
"ScalableDimension": "string",
"ServiceNamespace": "string"
}
```
## Request Parameters
For information about the parameters that are common to all actions, see [Common Parameters](CommonParameters.md).
The request accepts the following data in JSON format.
** [IncludeNotScaledActivities](#API_DescribeScalingActivities_RequestSyntax) **
Specifies whether to include activities that aren't scaled (*not scaled activities*) in the response. Not scaled activities are activities that aren't completed or started for various reasons, such as preventing infinite scaling loops. For help interpreting the not scaled reason details in the response, see [Scaling activities for Application Auto Scaling](https://docs.aws.amazon.com/autoscaling/application/userguide/application-auto-scaling-scaling-activities.html).
Type: Boolean
Required: No
** [MaxResults](#API_DescribeScalingActivities_RequestSyntax) **
The maximum number of scalable targets. This value can be between 1 and 50. The default value is 50.
If this parameter is used, the operation returns up to `MaxResults` results at a time, along with a `NextToken` value. To get the next set of results, include the `NextToken` value in a subsequent call. If this parameter is not used, the operation returns up to 50 results and a `NextToken` value, if applicable.
Type: Integer
Required: No
** [NextToken](#API_DescribeScalingActivities_RequestSyntax) **
The token for the next set of results.
Type: String
Pattern: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`
Required: No
** [ResourceId](#API_DescribeScalingActivities_RequestSyntax) **
The identifier of the resource associated with the scaling activity. This string consists of the resource type and unique identifier.
+ ECS service - The resource type is `service` and the unique identifier is the cluster name and service name. Example: `service/my-cluster/my-service`.
+ Spot Fleet - The resource type is `spot-fleet-request` and the unique identifier is the Spot Fleet request ID. Example: `spot-fleet-request/sfr-73fbd2ce-aa30-494c-8788-1cee4EXAMPLE`.
+ EMR cluster - The resource type is `instancegroup` and the unique identifier is the cluster ID and instance group ID. Example: `instancegroup/j-2EEZNYKUA1NTV/ig-1791Y4E1L8YI0`.
+ AppStream 2.0 fleet - The resource type is `fleet` and the unique identifier is the fleet name. Example: `fleet/sample-fleet`.
+ DynamoDB table - The resource type is `table` and the unique identifier is the table name. Example: `table/my-table`.
+ DynamoDB global secondary index - The resource type is `index` and the unique identifier is the index name. Example: `table/my-table/index/my-table-index`.
+ Aurora DB cluster - The resource type is `cluster` and the unique identifier is the cluster name. Example: `cluster:my-db-cluster`.
+ SageMaker endpoint variant - The resource type is `variant` and the unique identifier is the resource ID. Example: `endpoint/my-end-point/variant/KMeansClustering`.
+ Custom resources are not supported with a resource type. This parameter must specify the `OutputValue` from the CloudFormation template stack used to access the resources. The unique identifier is defined by the service provider. More information is available in our [GitHub repository](https://github.com/aws/aws-auto-scaling-custom-resource).
+ Amazon Comprehend document classification endpoint - The resource type and unique identifier are specified using the endpoint ARN. Example: `arn:aws:comprehend:us-west-2:123456789012:document-classifier-endpoint/EXAMPLE`.
+ Amazon Comprehend entity recognizer endpoint - The resource type and unique identifier are specified using the endpoint ARN. Example: `arn:aws:comprehend:us-west-2:123456789012:entity-recognizer-endpoint/EXAMPLE`.
+ Lambda provisioned concurrency - The resource type is `function` and the unique identifier is the function name with a function version or alias name suffix that is not `$LATEST`. Example: `function:my-function:prod` or `function:my-function:1`.
+ Amazon Keyspaces table - The resource type is `table` and the unique identifier is the table name. Example: `keyspace/mykeyspace/table/mytable`.
+ Amazon MSK cluster - The resource type and unique identifier are specified using the cluster ARN. Example: `arn:aws:kafka:us-east-1:123456789012:cluster/demo-cluster-1/6357e0b2-0e6a-4b86-a0b4-70df934c2e31-5`.
+ Amazon ElastiCache replication group - The resource type is `replication-group` and the unique identifier is the replication group name. Example: `replication-group/mycluster`.
+ Amazon ElastiCache cache cluster - The resource type is `cache-cluster` and the unique identifier is the cache cluster name. Example: `cache-cluster/mycluster`.
+ Neptune cluster - The resource type is `cluster` and the unique identifier is the cluster name. Example: `cluster:mycluster`.
+ SageMaker serverless endpoint - The resource type is `variant` and the unique identifier is the resource ID. Example: `endpoint/my-end-point/variant/KMeansClustering`.
+ SageMaker inference component - The resource type is `inference-component` and the unique identifier is the resource ID. Example: `inference-component/my-inference-component`.
+ Pool of WorkSpaces - The resource type is `workspacespool` and the unique identifier is the pool ID. Example: `workspacespool/wspool-123456`.
Type: String
Length Constraints: Minimum length of 1. Maximum length of 1600.
Pattern: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`
Required: No
** [ScalableDimension](#API_DescribeScalingActivities_RequestSyntax) **
The scalable dimension. This string consists of the service namespace, resource type, and scaling property. If you specify a scalable dimension, you must also specify a resource ID.
+ `ecs:service:DesiredCount` - The task count of an ECS service.
+ `elasticmapreduce:instancegroup:InstanceCount` - The instance count of an EMR Instance Group.
+ `ec2:spot-fleet-request:TargetCapacity` - The target capacity of a Spot Fleet.
+ `appstream:fleet:DesiredCapacity` - The capacity of an AppStream 2.0 fleet.
+ `dynamodb:table:ReadCapacityUnits` - The provisioned read capacity for a DynamoDB table.
+ `dynamodb:table:WriteCapacityUnits` - The provisioned write capacity for a DynamoDB table.
+ `dynamodb:index:ReadCapacityUnits` - The provisioned read capacity for a DynamoDB global secondary index.
+ `dynamodb:index:WriteCapacityUnits` - The provisioned write capacity for a DynamoDB global secondary index.
+ `rds:cluster:ReadReplicaCount` - The count of Aurora Replicas in an Aurora DB cluster. Available for Aurora MySQL-compatible edition and Aurora PostgreSQL-compatible edition.
+ `sagemaker:variant:DesiredInstanceCount` - The number of EC2 instances for a SageMaker model endpoint variant.
+ `custom-resource:ResourceType:Property` - The scalable dimension for a custom resource provided by your own application or service.
+ `comprehend:document-classifier-endpoint:DesiredInferenceUnits` - The number of inference units for an Amazon Comprehend document classification endpoint.
+ `comprehend:entity-recognizer-endpoint:DesiredInferenceUnits` - The number of inference units for an Amazon Comprehend entity recognizer endpoint.
+ `lambda:function:ProvisionedConcurrency` - The provisioned concurrency for a Lambda function.
+ `cassandra:table:ReadCapacityUnits` - The provisioned read capacity for an Amazon Keyspaces table.
+ `cassandra:table:WriteCapacityUnits` - The provisioned write capacity for an Amazon Keyspaces table.
+ `kafka:broker-storage:VolumeSize` - The provisioned volume size (in GiB) for brokers in an Amazon MSK cluster.
+ `elasticache:cache-cluster:Nodes` - The number of nodes for an Amazon ElastiCache cache cluster.
+ `elasticache:replication-group:NodeGroups` - The number of node groups for an Amazon ElastiCache replication group.
+ `elasticache:replication-group:Replicas` - The number of replicas per node group for an Amazon ElastiCache replication group.
+ `neptune:cluster:ReadReplicaCount` - The count of read replicas in an Amazon Neptune DB cluster.
+ `sagemaker:variant:DesiredProvisionedConcurrency` - The provisioned concurrency for a SageMaker serverless endpoint.
+ `sagemaker:inference-component:DesiredCopyCount` - The number of copies across an endpoint for a SageMaker inference component.
+ `workspaces:workspacespool:DesiredUserSessions` - The number of user sessions for the WorkSpaces in the pool.
Type: String
Valid Values: `ecs:service:DesiredCount | ec2:spot-fleet-request:TargetCapacity | elasticmapreduce:instancegroup:InstanceCount | appstream:fleet:DesiredCapacity | dynamodb:table:ReadCapacityUnits | dynamodb:table:WriteCapacityUnits | dynamodb:index:ReadCapacityUnits | dynamodb:index:WriteCapacityUnits | rds:cluster:ReadReplicaCount | sagemaker:variant:DesiredInstanceCount | custom-resource:ResourceType:Property | comprehend:document-classifier-endpoint:DesiredInferenceUnits | comprehend:entity-recognizer-endpoint:DesiredInferenceUnits | lambda:function:ProvisionedConcurrency | cassandra:table:ReadCapacityUnits | cassandra:table:WriteCapacityUnits | kafka:broker-storage:VolumeSize | elasticache:cache-cluster:Nodes | elasticache:replication-group:NodeGroups | elasticache:replication-group:Replicas | neptune:cluster:ReadReplicaCount | sagemaker:variant:DesiredProvisionedConcurrency | sagemaker:inference-component:DesiredCopyCount | workspaces:workspacespool:DesiredUserSessions`
Required: No
** [ServiceNamespace](#API_DescribeScalingActivities_RequestSyntax) **
The namespace of the AWS service that provides the resource. For a resource provided by your own application or service, use `custom-resource` instead.
Type: String
Valid Values: `ecs | elasticmapreduce | ec2 | appstream | dynamodb | rds | sagemaker | custom-resource | comprehend | lambda | cassandra | kafka | elasticache | neptune | workspaces`
Required: Yes
## Response Syntax
```
{
"NextToken": "string",
"ScalingActivities": [
{
"ActivityId": "string",
"Cause": "string",
"Description": "string",
"Details": "string",
"EndTime": number,
"NotScaledReasons": [
{
"Code": "string",
"CurrentCapacity": number,
"MaxCapacity": number,
"MinCapacity": number
}
],
"ResourceId": "string",
"ScalableDimension": "string",
"ServiceNamespace": "string",
"StartTime": number,
"StatusCode": "string",
"StatusMessage": "string"
}
]
}
```
## 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.
** [NextToken](#API_DescribeScalingActivities_ResponseSyntax) **
The token required to get the next set of results. This value is `null` if there are no more results to return.
Type: String
Pattern: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`
** [ScalingActivities](#API_DescribeScalingActivities_ResponseSyntax) **
A list of scaling activity objects.
Type: Array of [ScalingActivity](API_ScalingActivity.md) objects
## Errors
For information about the errors that are common to all actions, see [Common Error Types](CommonErrors.md).
** ConcurrentUpdateException **
Concurrent updates caused an exception, for example, if you request an update to an Application Auto Scaling resource that already has a pending update.
HTTP Status Code: 400
** InternalServiceException **
The service encountered an internal error.
HTTP Status Code: 400
** InvalidNextTokenException **
The next token supplied was invalid.
HTTP Status Code: 400
** ValidationException **
An exception was thrown for a validation issue. Review the available parameters for the API request.
HTTP Status Code: 400
## Examples
If you plan to create requests manually, you must replace the Authorization header contents in the examples (`AUTHPARAMS`) with a signature. For more information, see [Signing AWS API requests](https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_aws-signing.html) in the *IAM User Guide*. If you plan to use the [AWS CLI](http://aws.amazon.com/cli/) or one of the [AWS SDKs](http://aws.amazon.com/tools/), these tools sign the requests for you.
### Example of scaling activities for a scaling policy
The following example describes the scaling activities for an Amazon ECS service named `web-app` that's running in the `default` cluster. It shows the scaling activities for the scaling policy named `cpu75-target-tracking-scaling-policy`, initiated by the CloudWatch alarm named `TargetTracking-service/my-cluster/my-service-AlarmHigh-d4f0770c-b46e-434a-a60f-3b36d653feca`.
#### Sample Request
```
POST / HTTP/1.1
Host: application-autoscaling.us-west-2.amazonaws.com
Accept-Encoding: identity
Content-Length: [content-length]
X-Amz-Target: AnyScaleFrontendService.DescribeScalingActivities
X-Amz-Date: 20190506T224112Z
User-Agent: aws-cli/1.10.26 Python/2.7.11 Darwin/15.4.0 botocore/1.4.8
Content-Type: application/x-amz-json-1.1
Authorization: AUTHPARAMS
{
"ResourceId": "service/my-cluster/my-service",
"ServiceNamespace": "ecs",
"ScalableDimension": "ecs:service:DesiredCount"
}
```
#### Sample Response
```
HTTP/1.1 200 OK
x-amzn-RequestId: [request-id]
Content-Type: application/x-amz-json-1.1
Content-Length: 1784
Date: Fri, 06 May 2019 22:41:12 GMT
{
"ScalingActivities": [
{
"ScalableDimension": "ecs:service:DesiredCount",
"Description": "Setting desired count to 3.",
"ResourceId": "service/my-cluster/my-service",
"ActivityId": "4d759079-a31f-4d0c-8468-504c56e2eecf",
"StartTime": 1462574194.658,
"ServiceNamespace": "ecs",
"EndTime": 1462574276.686,
"Cause": "monitor alarm TargetTracking-service/my-cluster/my-service-AlarmHigh-d4f0770c-b46e-434a-a60f-3b36d653feca in state ALARM triggered policy cpu75-target-tracking-scaling-policy",
"StatusMessage": "Successfully set desired count to 3. Change successfully fulfilled by ecs.",
"StatusCode": "Successful"
},
{
"ScalableDimension": "ecs:service:DesiredCount",
"Description": "Setting desired count to 2.",
"ResourceId": "service/my-cluster/my-service",
"ActivityId": "90aff0eb-dd6a-443c-889b-b809e78061c1",
"StartTime": 1462574254.223,
"ServiceNamespace": "ecs",
"EndTime": 1462574333.492,
"Cause": "monitor alarm TargetTracking-service/my-cluster/my-service-AlarmHigh-d4f0770c-b46e-434a-a60f-3b36d653feca in state ALARM triggered policy cpu75-target-tracking-scaling-policy",
"StatusMessage": "Successfully set desired count to 2. Change successfully fulfilled by ecs.",
"StatusCode": "Successful"
}
]
}
```
### Example of scaling activities for scheduled actions
The following example describes the scaling activities for a DynamoDB table named `my-table`. It shows the scaling activities for scheduled actions named `my-first-scheduled-action` and `my-second-scheduled-action`.
#### Sample Request
```
POST / HTTP/1.1
Host: application-autoscaling.us-west-2.amazonaws.com
Accept-Encoding: identity
Content-Length: [content-length]
X-Amz-Target: AnyScaleFrontendService.DescribeScalingActivities
X-Amz-Date: 20190526T110828Z
User-Agent: aws-cli/1.10.26 Python/2.7.11 Darwin/15.4.0 botocore/1.4.8
Content-Type: application/x-amz-json-1.1
Authorization: AUTHPARAMS
{
"ResourceId": "table/my-table",
"ServiceNamespace": "dynamodb",
"ScalableDimension": "dynamodb:table:WriteCapacityUnits"
}
```
#### Sample Response
```
HTTP/1.1 200 OK
x-amzn-RequestId: [request-id]
Content-Type: application/x-amz-json-1.1
Content-Length: 1784
Date: Fri, 26 May 2019 11:08:28 GMT
{
"ScalingActivities": [
{
"ScalableDimension": "dynamodb:table:WriteCapacityUnits",
"Description": "Setting write capacity units to 10.",
"ResourceId": "table/my-table",
"ActivityId": "4d1308c0-bbcf-4514-a673-b0220ae38547",
"StartTime": 1561574415.086,
"ServiceNamespace": "dynamodb",
"Cause": "maximum capacity was set to 10",
"StatusMessage": "Successfully set write capacity units to 10. Waiting for change to be fulfilled by dynamodb.",
"StatusCode": "InProgress"
},
{
"ScalableDimension": "dynamodb:table:WriteCapacityUnits",
"Description": "Setting min capacity to 5 and max capacity to 10",
"ResourceId": "table/my-table",
"ActivityId": "f2b7847b-721d-4e01-8ef0-0c8d3bacc1c7",
"StartTime": 1561574414.644,
"ServiceNamespace": "dynamodb",
"Cause": "scheduled action name my-second-scheduled-action was triggered",
"StatusMessage": "Successfully set min capacity to 5 and max capacity to 10",
"StatusCode": "Successful"
},
{
"ScalableDimension": "dynamodb:table:WriteCapacityUnits",
"Description": "Setting write capacity units to 15.",
"ResourceId": "table/my-table",
"ActivityId": "d8ea4de6-9eaa-499f-b466-2cc5e681ba8b",
"StartTime": 1561574108.904,
"ServiceNamespace": "dynamodb",
"EndTime": 1561574140.255,
"Cause": "minimum capacity was set to 15",
"StatusMessage": "Successfully set write capacity units to 15. Change successfully fulfilled by dynamodb.",
"StatusCode": "Successful"
},
{
"ScalableDimension": "dynamodb:table:WriteCapacityUnits",
"Description": "Setting min capacity to 15 and max capacity to 20",
"ResourceId": "table/my-table",
"ActivityId": "3250fd06-6940-4e8e-bb1f-d494db7554d2",
"StartTime": 1561574108.512,
"ServiceNamespace": "dynamodb",
"Cause": "scheduled action name my-first-scheduled-action was triggered",
"StatusMessage": "Successfully set min capacity to 15 and max capacity to 20",
"StatusCode": "Successful"
}
]
}
```
## See Also
For more information about using this API in one of the language-specific AWS SDKs, see the following:
+ [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/application-autoscaling-2016-02-06/DescribeScalingActivities)
+ [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/application-autoscaling-2016-02-06/DescribeScalingActivities)
+ [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/application-autoscaling-2016-02-06/DescribeScalingActivities)
+ [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/application-autoscaling-2016-02-06/DescribeScalingActivities)
+ [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/application-autoscaling-2016-02-06/DescribeScalingActivities)
+ [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/application-autoscaling-2016-02-06/DescribeScalingActivities)
+ [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/application-autoscaling-2016-02-06/DescribeScalingActivities)
+ [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/application-autoscaling-2016-02-06/DescribeScalingActivities)
+ [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/application-autoscaling-2016-02-06/DescribeScalingActivities)
+ [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/application-autoscaling-2016-02-06/DescribeScalingActivities)