Autoscaling and Scheduled Scaling

Air Container supports both Autoscaling and Scheduled Scaling, allowing you to automatically adjust the number of Replicas based on traffic patterns or predefined schedules.

Autoscaling

Autoscaling automatically increases or decreases the number of Replicas based on incoming traffic. It is useful when:

Traffic varies significantly throughout the day.
You want to reduce response latency while improving resource efficiency.
Manually adjusting the number of Replicas is impractical.

Autoscaling can be enabled during container deployment or later from the Settings page.

Configuration

Setting	Description
Minimum Replicas	Minimum number of Replicas to keep running.
Maximum Replicas	Maximum number of Replicas that Autoscaling can provision.
Scaling Sensitivity	Controls how aggressively Autoscaling responds to traffic changes (Low, Medium, or High).

Scaling Sensitivity

Scaling Sensitivity determines how quickly AirCloud responds to changes in traffic.

Sensitivity	Behavior	Recommended For
Low	Conservative scaling	Workloads with gradual traffic changes where excessive scale-outs should be avoided.
Medium	Balanced scaling	General API services and model serving workloads. Recommended for most deployments.
High	Aggressive scaling	Workloads with sudden traffic spikes and strict latency requirements.

Scheduled Scaling

Best Practices

Set Minimum Replicas to 1 if your service must always remain available. Setting it to 0 allows containers to scale down completely when there is no traffic.
Start with Medium scaling sensitivity and adjust it based on actual usage patterns.
Create multiple schedules to apply different scaling policies throughout the day.
Switching between fixed Replicas and Autoscaling restarts the container. Schedule these changes during periods of low traffic whenever possible.

Scheduled Scaling automatically adjusts the number of Replicas according to a predefined schedule. It is particularly effective for workloads with predictable traffic patterns and can be used together with Autoscaling.

Create a Schedule

From the container details page, navigate to Scheduled Scaling and click + Add Schedule. Each schedule can have its own independent scaling configuration.

Setting	Description
Name	A descriptive name for the schedule (for example, Business Hours Scale Up).
Enable Autoscaling	Choose whether to use Autoscaling (minimum and maximum Replicas) or a fixed number of Replicas during this schedule.
Minimum Replicas	Minimum number of Replicas to maintain while Autoscaling is enabled.
Maximum Replicas	Maximum number of Replicas that Autoscaling can provision.
Initial Replicas	Number of Replicas to start when the schedule becomes active.
Scaling Sensitivity	Autoscaling responsiveness (Low, Medium, or High).
Schedule	Currently supports daily recurring schedules.
Start Time	Date and time when the schedule starts. (Optional, KST)
End Time	Time when the schedule ends. (Optional)
Enabled	Enables or disables the schedule.

Switching between fixed Replicas and Autoscaling restarts the container. Zero-downtime deployment is not guaranteed, and additional time may be required for initialization and deployment.

Example: Business Hours Traffic

Suppose your application experiences higher traffic between 9:00 AM and 7:00 PM (KST) every day.

Schedule 1 — Business Hours Scale Up: Autoscaling Enabled, Minimum Replicas 2, Maximum Replicas 5, Start Time 09:00 KST
Schedule 2 — Scale Down at Night: Autoscaling Disabled, Fixed Replicas 1, Start Time 19:00 KST

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Air API

Air Container

Reference

Console

Support

Autoscaling and Scheduled Scaling

Autoscaling

Configuration

Scaling Sensitivity

Scheduled Scaling

Best Practices

Create a Schedule

Example: Business Hours Traffic

Deploy a Container

Monitoring

​Autoscaling

​Configuration

​Scaling Sensitivity

​Scheduled Scaling

Best Practices

​Create a Schedule

​Example: Business Hours Traffic

​Related Documentation

Deploy a Container

Monitoring

Autoscaling

Configuration

Scaling Sensitivity

Scheduled Scaling

Create a Schedule

Example: Business Hours Traffic

Related Documentation