AZ525893 - Generally Available: Application Gateway for Containers – Slow start

Azure Updates

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Published

Nov 18, 2025

Status

Launched

Timeline

  • November 2025
    General Availability

Product

Application Gateway
Azure Kubernetes Service (AKS)

Tag

Services
Microsoft Ignite
Features

Category

Networking
Security
Compute
Containers

Description

Slow start is now generally available as a load balancing algorithm in Application Gateway for Containers. This feature improves stability and performance during backend scale-up by gradually increasing traffic to new pods over a configurable time window. 

Algorithm benefits: 

  • Smooth scale-up: Avoid sudden traffic spikes that can cause cold-start delays or failures. 
  • Improved reliability: Ensure new pods are ready before handling peak load. 
  • Predictable performance: Maintain consistent response times during scaling events and rolling updates. 

Learn more: