AWS Auto Scaling (Amazon Auto Scaling)学习笔记

Auto Scaling is a service that allows you to scale your Amazon EC2 capacity automatically by scaling out and scaling in according to criteria that you define.

Auto Scaling Plans

Auto Scaling has several schemes or plans that you can use to control how you want Auto Scaling to perform.

Maintain Current Instance Levels
You can configure your Auto Scaling group to maintain a minimum or specified number of running instances at all times.

Manual Scaling
You only need to specify the change in the maximum, minimum, or desired capacity of your Auto Scaling group.
Manual scaling out can be very useful to increase resources for an infrequent
event, such as the release of a new game version that will be available for download and require a user registration. For extremely large-scale events, even the Elastic Load B