Auto Scaling
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Auto ScalingAPI ReferenceScalingActivitiesDescribeScalingActivities - Queries scaling activities
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DescribeScalingActivities - Queries scaling activities
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Query scaling logs.
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Request parameters
Only the request parameters specific to this operation and some common parameters are listed below. For more information, refer to Common parameters.
Action string required Sample value: DescribeScalingActivities
The action that you want to perform. Value: DescribeScalingActivities.
Version string required Sample value: 2020-01-01
The version of the API. Value: 2020-01-01.
ScalingGroupId string required Sample value: scg-yblhryq64wgh9zmp****
EndTime string Optional Sample value: 2021-09-06T07:40Z
The end date of the scaling log.
PageNumber integer Optional Sample value: 1
The page number of the list. The default value is 1.
PageSize integer Optional Sample value: 10
The number of entries on each page in a pagination query. Valid values: 1–50. Default value: 10.
ScalingActivityIds.N string[] Optional Sample value: sga-ybn0mwfy1yl8j1f6****
The list of scaling log IDs.
- Parameter - N: Specifies the serial number of the scaling log. Valid value: 1-20.
- Separate multiple scaling logs with ampersands (&).
StartTime string Optional Sample value: 2021-09-06T07:37Z
The start date of the scaling log.
StatusCode string Optional Sample value: Success
The execution result in the scaling log. Valid values:
- Init: Initialization.
- Running: Running.
- Success: Success.
- PartialSuccess: Partial success.
- Error: All failed.
- Rejected: Denied execution.
- Exception: Exception.
Response parameters
Only the response parameters specific to this operation are listed below. For more information, refer to the response structure.
PageNumber integer Sample value: 1
The current page number.
PageSize integer Sample value: 10
The number of entries per page.
ScalingActivities object[] Sample value: --
Information on scaling logs that meet the conditions.
ScalingActivityId string Sample value: sga-ybn0mwfy1yl8j1f6****
The ID of the scaling log.
CreatedAt string Sample value: 2022-05-11T03:15:26Z
The start time in the scaling log.
ExpectedRunTime string Sample value: 2022-05-11T03:15:24Z
The scheduled execution time in the scaling log.
ScalingGroupId string String example: scg-ybmssdnnhn5pkgyd****
The ID of the scaling group.
ResultMsg string Sample value: This is a scaling log.
Description of the scaling log.
MaxInstanceNumber integer Sample value: 100
The maximum number of instances in the scaling group.
MinInstanceNumber integer Sample value: 10
The minimum number of instances in the scaling group.
CurrentInstanceNumber integer Sample value: 20
The number of instances currently running in the scaling group.
ActualAdjustInstanceNumber integer Sample value: 3
The actual adjusted instance count in the scaling log.
Cooldown integer Sample value: 300
The cooldown time in the scaling log after execution completion.
StatusCode string Sample value: Init
The execution result in the scaling log. Valid values:
- Init: Initialization.
- Running: Running.
- Success: Success.
- PartialSuccess: Partial success.
- Error: All failed.
- Rejected: Denied execution.
- Exception: Exception.
RelatedInstances object[]
Instance-related information in the scaling log.
Message string Sample value: Error.
Description or error information.
InstanceId string Sample value: i-ybmike5l70l8j1ha****
The instance ID.
OperateType string Sample value: Add
The instance-targeted adjustment type. Valid values:
- Add: Increases instances.
- Remove: Removes instances.
Status string Sample value: Success
The scaling status of the instance. Valid values:
- Success: Success.
- Error: An error occurred.
ActivityType string Sample value: SCALE_OUT
The scaling log type. Valid values:
- SCALE_OUT: Scale-out.
- SCALE_IN: Scale-in.
- SYNC_INSTANCES: Instance state synchronization.
StoppedAt string Sample value: 2022-05-11T03:15:51Z
The stop time in the scaling log.
TaskCategory string Sample value: Manual
The operation type in the scaling log. Valid values:
- Manual: Manual execution.
- Scheduled: Scheduled execution.
- Recurrence: Periodic execution.
- Alarm: Alert task.
- HealthCheck: Health check.
TotalCount integer Sample value: 100
The total number of scaling logs that meet the conditions.
Sample request
Sample response
Error codes
The table below lists the business-related error codes of the operation. For more information, refer to Common error codes.
Last updated: 2026.06.26 10:55:29
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