There are more AWS SDK examples available in the [AWS Doc SDK Examples](https://github.com/awsdocs/aws-doc-sdk-examples) GitHub repo. # Use `DescribeScalingActivities` with a CLI The following code examples show how to use `DescribeScalingActivities`. ------ #### [ CLI ] **AWS CLI** **Example 1: To describe scaling activities for the specified Amazon ECS service** The following `describe-scaling-activities` example describes the scaling activities for an Amazon ECS service called `web-app` that is running in the `default` cluster. The output shows a scaling activity initiated by a scaling policy. ``` aws application-autoscaling describe-scaling-activities \ --service-namespace {{ecs}} \ --resource-id {{service/default/web-app}} ``` Output: ``` { "ScalingActivities": [ { "ScalableDimension": "ecs:service:DesiredCount", "Description": "Setting desired count to 1.", "ResourceId": "service/default/web-app", "ActivityId": "e6c5f7d1-dbbb-4a3f-89b2-51f33e766399", "StartTime": 1462575838.171, "ServiceNamespace": "ecs", "EndTime": 1462575872.111, "Cause": "monitor alarm web-app-cpu-lt-25 in state ALARM triggered policy web-app-cpu-lt-25", "StatusMessage": "Successfully set desired count to 1. Change successfully fulfilled by ecs.", "StatusCode": "Successful" } ] } ``` For more information, see [Scaling activities for Application Auto Scaling](https://docs.aws.amazon.com/autoscaling/application/userguide/application-auto-scaling-scaling-activities.html) in the *Application Auto Scaling User Guide*. **Example 2: To describe scaling activities for the specified DynamoDB table** The following `describe-scaling-activities` example describes the scaling activities for a DynamoDB table called `TestTable`. The output shows scaling activities initiated by two different scheduled actions. ``` aws application-autoscaling describe-scaling-activities \ --service-namespace {{dynamodb}} \ --resource-id {{table/TestTable}} ``` Output: ``` { "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", "EndTime": 1561574449.51, "Cause": "maximum capacity was set to 10", "StatusMessage": "Successfully set write capacity units to 10. Change successfully fulfilled by dynamodb.", "StatusCode": "Successful" }, { "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" } ] } ``` For more information, see [Scaling activities for Application Auto Scaling](https://docs.aws.amazon.com/autoscaling/application/userguide/application-auto-scaling-scaling-activities.html) in the *Application Auto Scaling User Guide*. + For API details, see [DescribeScalingActivities](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/application-autoscaling/describe-scaling-activities.html) in *AWS CLI Command Reference*. ------ #### [ PowerShell ] **Tools for PowerShell V4** **Example 1: Provides descriptive information about the scaling activities in the specified namespace from the previous six weeks.** ``` Get-AASScalingActivity -ServiceNamespace AppStream ``` **Output:** ``` ActivityId : 2827409f-b639-4cdb-a957-8055d5d07434 Cause : monitor alarm Appstream2-MyFleet-default-scale-in-Alarm in state ALARM triggered policy default-scale-in Description : Setting desired capacity to 2. Details : EndTime : 12/14/2019 11:32:49 AM ResourceId : fleet/MyFleet ScalableDimension : appstream:fleet:DesiredCapacity ServiceNamespace : appstream StartTime : 12/14/2019 11:32:14 AM StatusCode : Successful StatusMessage : Successfully set desired capacity to 2. Change successfully fulfilled by appstream. ``` + For API details, see [DescribeScalingActivities](https://docs.aws.amazon.com/powershell/v4/reference) in *AWS Tools for PowerShell Cmdlet Reference (V4)*. **Tools for PowerShell V5** **Example 1: Provides descriptive information about the scaling activities in the specified namespace from the previous six weeks.** ``` Get-AASScalingActivity -ServiceNamespace AppStream ``` **Output:** ``` ActivityId : 2827409f-b639-4cdb-a957-8055d5d07434 Cause : monitor alarm Appstream2-MyFleet-default-scale-in-Alarm in state ALARM triggered policy default-scale-in Description : Setting desired capacity to 2. Details : EndTime : 12/14/2019 11:32:49 AM ResourceId : fleet/MyFleet ScalableDimension : appstream:fleet:DesiredCapacity ServiceNamespace : appstream StartTime : 12/14/2019 11:32:14 AM StatusCode : Successful StatusMessage : Successfully set desired capacity to 2. Change successfully fulfilled by appstream. ``` + For API details, see [DescribeScalingActivities](https://docs.aws.amazon.com/powershell/v5/reference) in *AWS Tools for PowerShell Cmdlet Reference (V5)*. ------