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Last updated：2021-05-21 17:42:57
Auto Scaling can dynamically adjust the number of KEC instances in a scaling group based on metrics of KEC instances. You can create an alarm-triggered policy to specify a metric, the status of the metric to trigger a scaling activity, and the scaling activity content.
To create an alarm-triggered policy, you need to specify the condition and action.
To define a condition, you need to specify the following information: metric, threshold, cycle, and number of consecutive cycles in which the threshold is reached. The condition is met when the value of the metric reaches the threshold in N consecutive cycles.
The following metrics can be used:
The action to be taken by Auto Scaling is to send a notification and add or remove the specified number of KEC instances.
Log in to the Auto Scaling console.
Click Scaling Group in the left navigation pane.
Select a region from the top navigation bar.
In the scaling group list, find the scaling group for which you want to create an alarm-triggered policy, and click Manage in the Operation column. The details page of the scaling group appears.
Click the Alarm-Triggered Policy tab. The list of alarm-triggered policies for the scaling group appears.
Click Create.
In the scaling group list, find the scaling group for which you want to delete an alarm-triggered policy, and click Manage in the Operation column. The details page of the scaling group appears.
Click the Alarm-Triggered Policy tab. The list of alarm-triggered policies for the scaling group appears.
Find the alarm-triggered policy to be deleted, and click Delete in the Operation column.
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