Auto Scaling:DescribeScalingGroups

The ID of the virtual private cloud (VPC) in which the scaling group resides.

The time when the scaling group was created.

The total number of ECS instances in the scaling group.

The name of the scaling group.

The number of instance types that are specified. Auto Scaling creates preemptible instances of multiple instance types that are provided at the lowest price. Valid values: 0 to 10.

If you set MultiAZPolicy to COMPOSABLE, the default value is 2.

The number of instances that were stopped in Economical Mode in the scaling group.

The percentage of pay-as-you-go instances in the excess instances when the minimum number of pay-as-you-go instances is reached. OnDemandBaseCapacity specifies the minimum number of pay-as-you-go instances that must be included in the scaling group. Valid values: 0 to 100.

If you set MultiAZPolicy to COMPOSABLE, the default value is 100.

The time when the scaling group was modified.

The minimum number of ECS instances that must be included in the scaling group.

The ID of the scaling group.

Indicates whether pay-as-you-go instances can be automatically created to meet the requirement on the number of ECS instances when the expected capacity of preemptible instances cannot be provided due to reasons such as cost-related issues and insufficient resources. This parameter is available only if you set MultiAZPolicy to COST_OPTIMIZED. Valid values:

• true
• false

The reclaim mode of the scaling group. Valid values:

• recycle: economical mode
• release: release mode

For information about how to remove instances, see the RemoveInstances topic.

The number of ECS instances that are in the Pending Remove state in the scaling group.

The number of ECS instances that are in the In Service state in the scaling group.

The minimum number of pay-as-you-go instances that must be included in the scaling group. Valid values: 0 to 1000. If the number of pay-as-you-go instances in the scaling group is less than the value of this parameter, Auto Scaling preferentially creates pay-as-you-go instances.

If you set MultiAZPolicy to COMPOSABLE, the default value is 0.

The number of ECS instances that are in the Protected state in the scaling group.

The health check mode of the scaling group. Valid values:

• NONE: Auto Scaling does not perform health checks on ECS instances in the scaling group.
• ECS: Auto Scaling performs health checks on ECS instances in the scaling group.

The state of the scaling group. Valid values:

• Active: The scaling group is active. Active scaling groups can receive requests to execute scaling rules and trigger scaling activities.
• Inactive: The scaling group is inactive. Inactive scaling groups cannot receive requests to execute scaling rules.
• Deleting: The scaling group is being deleted. Scaling groups that are being deleted cannot receive requests to execute scaling rules, and the parameters of the scaling groups cannot be modified.

Indicates whether deletion protection is enabled for the scaling group. Valid values:

• true: Deletion protection is enabled for the scaling group. This way, the scaling group cannot be deleted.
• false: Deletion protection is disabled for the scaling group.

The ID of the active scaling configuration in the scaling group.

The type of instances that are managed by the scaling group.

The scaling policy for the multi-zone scaling group of the ECS type. Valid values:

• PRIORITY: ECS instances are scaled based on the value of VSwitchIds.N. If an ECS instance cannot be created in the zone where the vSwitch of the highest priority resides, Auto Scaling automatically creates the ECS instance in the zone where the vSwitch of the next highest priority resides.
• COST_OPTIMIZED: ECS instances are created based on the unit price of the vCPUs. Auto Scaling preferentially creates ECS instances whose vCPUs have the lowest price. If you specified preemptible instance types in the scaling configuration, Auto Scaling preferentially creates preemptible instances. You can specify CompensateWithOnDemand to determine whether to automatically create pay-as-you-go instances when preemptible instances cannot be created due to insufficient resources.

  Note The COST_OPTIMIZED setting takes effect only when multiple instance types are specified or preemptible instances are used.
• BALANCE: ECS instances are evenly distributed across multiple zones that are specified for the scaling group. If ECS instances are unevenly distributed across zones due to insufficient resources, you can call the RebalanceInstance operation to evenly distribute the instances across the zones.
• COMPOSABLE: You can combine the preceding policies based on your business requirements.

The number of ECS instances that are being removed from the scaling group.

The number of ECS instances that are in the Pending Add state in the scaling group.

The number of ECS instances that are in the Standby state in the scaling group.

The number of ECS instances that are being added to the scaling group and still being configured.

The ID of the launch template that is used by the scaling group.

The total weighted capacity of all ECS instances in the scaling group if WeightedCapacity is specified. In other cases, the value of this parameter indicates the total number of ECS instances in the scaling group.

The expected number of ECS instances in the scaling group. Auto Scaling automatically maintains the expected number of ECS instances in the scaling group.

Indicates whether preemptible instances can be supplemented. If this parameter is set to true, Auto Scaling creates an instance to replace a preemptible instance when Auto Scaling receives a system message which indicates that the preemptible instance is to be reclaimed.

The version of the launch template that is used by the scaling group.

The region ID of the scaling group.

The ID of the vSwitch that is associated with the scaling group.

The maximum number of ECS instances that can be included in the scaling group.

The default cooldown period of the scaling group. During the cooldown period, Auto Scaling executes only the scaling activities that are triggered by CloudMonitor event-triggered tasks.

Details of the policies that are used to remove ECS instances from the scaling group. Valid values:

• OldestInstance: ECS instances that are created at the earliest point in time are removed.
• NewestInstance: ECS instances that are created at the most recent point in time are removed.
• OldestScalingConfiguration: ECS instances that are created based on the earliest scaling configuration are removed.
• CustomPolicy: ECS instances are removed based on the custom scale-in policy (Function).

The IDs of the ApsaraDB RDS instances that are associated with the scaling group.

The IDs of the SLB instances that are associated with the scaling group.

The IDs of the vSwitches that are associated with the scaling group. If you specify VSwitchIds, VSwitchId is ignored.

The processes that are suspended. If no process is suspended, null is returned. Valid values:

• ScaleIn: scale-in
• ScaleOut: scale-out
• HealthCheck: health check
• AlarmNotification: event-triggered task
• ScheduledAction: scheduled task

Indicates whether Auto Scaling stops executing scaling activities in the scaling group. Valid values:

• true: If the scaling activities fail for more than seven consecutive days, Auto Scaling stops executing scaling activities in the scaling group. You must modify the scaling group or scaling configuration to resume the execution of the scaling activities.
• false: Auto Scaling does not stop executing scaling activities in the scaling group.

The ID of the CloudMonitor application group that is associated with the scaling group.

Indicates whether instances in the scaling group are evenly distributed across zones. Valid values:

• true
• false

  Note This parameter is available only if you set MultiAZPolicy to COMPOSABLE.

The allocation policy of instances. Auto Scaling selects instance types based on the allocation policy to create instances. The allocation policy can be applied to pay-as-you-go and preemptible instances. Valid values:

• priority: Auto Scaling selects instance types based on the specified order of the instance types to create the required number of instances.
• lowestPrice: Auto Scaling selects instance types that have the lowest unit price of vCPUs to create the required number of instances.

  Note This parameter is available only if you set MultiAZPolicy to COMPOSABLE.

The allocation policy of preemptible instances. This parameter indicates the manner in which Auto Scaling selects instance types to create the required number of preemptible instances. This parameter takes effect only if you set MultiAZPolicy to COMPOSABLE. Valid values:

• priority: Auto Scaling selects instance types based on the specified order to create the required number of preemptible instances.
• lowestPrice: Auto Scaling selects instance types that have the lowest unit price of vCPUs to create the required number of preemptible instances.

The maximum life span of an ECS instance in the scaling group. Unit: seconds.

Valid values: 0 or from 86400 to the value of Integer.maxValue. A value of 0 indicates that the ECS instance has an unlimited life span in the scaling group.

Default value: null.

The Alibaba Cloud Resource Name (ARN) of the custom scaling policy (Function). This parameter is available only if you specify CustomPolicy as the first step to remove instances.

The number of ECS instances that are in the Initialized state before the ECS instances are scaled out in the scaling group.

The ID of the resource group to which the scaling group belongs.

Indicates whether the Expected Number of Instances feature is enabled. Valid values:

• true: The Expected Number of Instances feature is enabled. In this case, the response includes the information about the expected number of instances.
• false: The Expected Number of Instances feature is not enabled. In this case, the response does not include the information about the expected number of instances.