- Product Introduction
- Getting Started
- Purchase Guide
- Best Practices
- Tutorial
- Launch Configuration
- Scaling Groups
- Expanding and Reducing Capacity
- Monitoring
- Creating Notifications
- Troubleshooting
- 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 Instance APIs
- Launch Configuration APIs
- Scheduled Action APIs
- Alarm Trigger Policy APIs
- Notification APIs
- Lifecycle Hook APIs
- Other APIs
- Data Types
- Error Codes
- FAQs
- Contact Us
- Glossary
- Product Introduction
- Getting Started
- Purchase Guide
- Best Practices
- Tutorial
- Launch Configuration
- Scaling Groups
- Expanding and Reducing Capacity
- Monitoring
- Creating Notifications
- Troubleshooting
- 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 Instance APIs
- Launch Configuration APIs
- Scheduled Action APIs
- Alarm Trigger Policy APIs
- Notification APIs
- Lifecycle Hook 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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