- Product Introduction
- Purchase Guide
- Getting Started
- Tutorial
- Launch Configuration
- Scaling Groups
- Creating Notifications
- Expanding and Reducing Capacity
- Monitoring
- Troubleshooting
- Best Practices
- Customer Cases
- API Documentation
- History
- Introduction
- API Category
- Making API Requests
- Scaling Group APIs
- ModifyDesiredCapacity
- CreateAutoScalingGroup
- CreateAutoScalingGroupFromInstance
- ModifyAutoScalingGroup
- EnableAutoScalingGroup
- DisableAutoScalingGroup
- ModifyLoadBalancers
- ModifyLoadBalancerTargetAttributes
- DetachLoadBalancers
- AttachLoadBalancers
- DescribeAutoScalingInstances
- DescribeAutoScalingGroups
- DescribeAutoScalingActivities
- DescribeAutoScalingGroupLastActivities
- DeleteAutoScalingGroup
- ScaleOutInstances
- ScaleInInstances
- DescribeAutoScalingAdvices
- Scaling Group Instances APIs
- Launch Configuration APIs
- Scheduled Action APIs
- Alarm Trigger Policy APIs
- Notification APIs
- Lifecycle Hook APIs
- Instance Refresh APIs
- Other APIs
- Data Types
- Error Codes
- FAQs
- Contact Us
- Glossary
- Product Introduction
- Purchase Guide
- Getting Started
- Tutorial
- Launch Configuration
- Scaling Groups
- Creating Notifications
- Expanding and Reducing Capacity
- Monitoring
- Troubleshooting
- Best Practices
- Customer Cases
- API Documentation
- History
- Introduction
- API Category
- Making API Requests
- Scaling Group APIs
- ModifyDesiredCapacity
- CreateAutoScalingGroup
- CreateAutoScalingGroupFromInstance
- ModifyAutoScalingGroup
- EnableAutoScalingGroup
- DisableAutoScalingGroup
- ModifyLoadBalancers
- ModifyLoadBalancerTargetAttributes
- DetachLoadBalancers
- AttachLoadBalancers
- DescribeAutoScalingInstances
- DescribeAutoScalingGroups
- DescribeAutoScalingActivities
- DescribeAutoScalingGroupLastActivities
- DeleteAutoScalingGroup
- ScaleOutInstances
- ScaleInInstances
- DescribeAutoScalingAdvices
- Scaling Group Instances APIs
- Launch Configuration APIs
- Scheduled Action APIs
- Alarm Trigger Policy APIs
- Notification APIs
- Lifecycle Hook APIs
- Instance Refresh APIs
- Other APIs
- Data Types
- Error Codes
- FAQs
- Contact Us
- Glossary
AS periodically performs health checks on the instances in your Auto Scaling group and identifies any instances that are unhealthy. After Auto Scaling marks an instance as unhealthy, the instance is scheduled for replacement.
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