Design Principles and Implementation Details of Kubernetes Horizontal Pod Autoscaler and Custom Water Pod Autoscaler

The article explains Kubernetes’ built‑in Horizontal Pod Autoscaler, then details the custom Water Pod Autoscaler (WPA) that extends HPA with dual‑signal (load and SOA registration) detection, dual‑threshold scaling, noise filtering, configurable cooldown, frequency limits, tolerance buffers, and integrated alerting for reliable elastic scaling.

Cloud NativeHPAKubernetes

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Design Principles and Implementation Details of Kubernetes Horizontal Pod Autoscaler and Custom Water Pod Autoscaler

Alibaba Cloud Developer

Mar 7, 2018 · Cloud Native

How Alibaba’s Sigma‑Cerebro Simulator Boosts Cluster Utilization for Double‑11

The article explains Alibaba’s Sigma container‑scheduling system and its Cerebro simulation platform, detailing how they improve resource utilization, reduce costs during large‑scale events like Double‑11, and address challenges such as fragmentation, rapid scaling, image distribution, and accurate workload forecasting.

Cloud Nativecontainer schedulingresource utilization

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How Alibaba’s Sigma‑Cerebro Simulator Boosts Cluster Utilization for Double‑11