AWS autoscaling documentation change
Summary
Updated terminology from 'Auto Scaling' to 'Amazon EC2 Auto Scaling' for branding consistency and changed 'Elastic Load Balancing' to 'ELB' as an abbreviation
Security assessment
Changes are purely cosmetic terminology updates without addressing vulnerabilities, security configurations, or incident response. No security implications exist as the core functionality of Capacity Rebalancing remains unchanged.
Diff
diff --git a/autoscaling/ec2/userguide/ec2-auto-scaling-capacity-rebalancing.md b/autoscaling/ec2/userguide/ec2-auto-scaling-capacity-rebalancing.md index fa6d1af3b..39b2d3329 100644 --- a//autoscaling/ec2/userguide/ec2-auto-scaling-capacity-rebalancing.md +++ b//autoscaling/ec2/userguide/ec2-auto-scaling-capacity-rebalancing.md @@ -7 +7 @@ OverviewCapacity Rebalancing behaviorConsiderations -# Capacity Rebalancing in Auto Scaling to replace at-risk Spot Instances +# Capacity Rebalancing in Amazon EC2 Auto Scaling to replace at-risk Spot Instances @@ -9 +9 @@ OverviewCapacity Rebalancing behaviorConsiderations -Capacity Rebalancing in Auto Scaling helps you maintain your workload availability by proactively replacing Spot Instances at risk of interruption. +Capacity Rebalancing in Amazon EC2 Auto Scaling helps you maintain your workload availability by proactively replacing Spot Instances at risk of interruption. @@ -11 +11 @@ Capacity Rebalancing in Auto Scaling helps you maintain your workload availabili -When Spot Instances are at an elevated risk of interruption, the Amazon EC2 Spot service sends an EC2 instance rebalance recommendation to Amazon EC2 Auto Scaling. If you enable Capacity Rebalancing, Auto Scaling attempts to proactively replace the Spot Instances in your group that have received an EC2 instance rebalance recommendation. This provides an opportunity to rebalance your workload to new Spot Instances that aren't at an elevated risk of interruption. +When Spot Instances are at an elevated risk of interruption, the Amazon EC2 Spot service sends an EC2 instance rebalance recommendation to Amazon EC2 Auto Scaling. If you enable Capacity Rebalancing, Amazon EC2 Auto Scaling attempts to proactively replace the Spot Instances in your group that have received an EC2 instance rebalance recommendation. This provides an opportunity to rebalance your workload to new Spot Instances that aren't at an elevated risk of interruption. @@ -13 +13 @@ When Spot Instances are at an elevated risk of interruption, the Amazon EC2 Spot -When you don't use Capacity Rebalancing, Auto Scaling doesn't replace Spot Instances until after the Amazon EC2 Spot service interrupts the instances and their health check fails. Before interrupting an instance, Amazon EC2 always gives both an EC2 instance rebalance recommendation and a Spot two-minute instance interruption notice. +When you don't use Capacity Rebalancing, Amazon EC2 Auto Scaling doesn't replace Spot Instances until after the Amazon EC2 Spot service interrupts the instances and their health check fails. Before interrupting an instance, Amazon EC2 always gives both an EC2 instance rebalance recommendation and a Spot two-minute instance interruption notice. @@ -30 +30 @@ When you don't use Capacity Rebalancing, Auto Scaling doesn't replace Spot Insta -To use Capacity Rebalancing with your Auto Scaling group, the basic steps are: +To use Capacity Rebalancing with your Amazon EC2 Auto Scaling group, the basic steps are: @@ -32 +32 @@ To use Capacity Rebalancing with your Auto Scaling group, the basic steps are: - 1. Configure your Auto Scaling group to use multiple instance types and Availability Zones. This way, Amazon EC2 Auto Scaling can look at the available capacity for Spot Instances in each Availability Zone. For more information, see [Auto Scaling groups with multiple instance types and purchase options](./ec2-auto-scaling-mixed-instances-groups.html). + 1. Configure your Amazon EC2 Auto Scaling group to use multiple instance types and Availability Zones. This way, Amazon EC2 Auto Scaling can look at the available capacity for Spot Instances in each Availability Zone. For more information, see [Amazon EC2 Auto Scaling groups with multiple instance types and purchase options](./ec2-auto-scaling-mixed-instances-groups.html). @@ -65 +65 @@ With Capacity Rebalancing, Amazon EC2 Auto Scaling behaves in the following way - * If you didn't add a lifecycle hook to your Auto Scaling group, Amazon EC2 Auto Scaling starts terminating the previous instances as soon as the new instances pass their health check. + * If you didn't add a lifecycle hook to your Amazon EC2 Auto Scaling group, Amazon EC2 Auto Scaling starts terminating the previous instances as soon as the new instances pass their health check. @@ -69 +69 @@ With Capacity Rebalancing, Amazon EC2 Auto Scaling behaves in the following way - * If you are using scaling policies or scheduled scaling, the scaling activities run in parallel. If a scaling activity is in progress and your Auto Scaling group is below its new desired capacity, Amazon EC2 Auto Scaling scales out first before terminating the previous instances. + * If you are using scaling policies or scheduled scaling, the scaling activities run in parallel. If a scaling activity is in progress and your Amazon EC2 Auto Scaling group is below its new desired capacity, Amazon EC2 Auto Scaling scales out first before terminating the previous instances. @@ -85 +85 @@ Consider the following when using Capacity Rebalancing: -Your application should be able to handle dynamic changes in the number of instances and the possibility of a Spot Instance being interrupted early. For example, if your Auto Scaling group is behind an Elastic Load Balancing load balancer, Amazon EC2 Auto Scaling waits for the instance to deregister from the load balancer before calling your lifecycle hook. If the time to deregister the instance and complete the lifecycle action takes too long, the instance might be interrupted while Amazon EC2 Auto Scaling waits for your lifecycle action to complete before terminating the instance. +Your application should be able to handle dynamic changes in the number of instances and the possibility of a Spot Instance being interrupted early. For example, if your Amazon EC2 Auto Scaling group is behind an ELB load balancer, Amazon EC2 Auto Scaling waits for the instance to deregister from the load balancer before calling your lifecycle hook. If the time to deregister the instance and complete the lifecycle action takes too long, the instance might be interrupted while Amazon EC2 Auto Scaling waits for your lifecycle action to complete before terminating the instance.