Cluster Autoscaler

Setting Up Kubernetes Cluster Autoscaler on EKS: The Settings That Actually Matter

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Setting Up Kubernetes Cluster Autoscaler on EKS: The Settings That Actually Matter

By KP  |  TZoneLabs  |  DevOps & Cloud Engineering Installing Cluster Autoscaler is one Helm command. Getting it to scale up fast enough and scale down without evicting something it shouldn’t is the part that takes actual configuration. The defaults are conservative on purpose, and left untouched they either leave pending pods waiting longer than … Read more

We Burned Two Weeks of Cloud Budget Because Our Autoscaler Was Stuck in a Scale-Up, Scale-Down Loop

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We Burned Two Weeks of Cloud Budget Because Our Autoscaler Was Stuck in a Scale-Up, Scale-Down Loop

By KP  |  TZoneLabs  |  DevOps & Cloud Engineering For nine days, our cluster added and removed the same three worker nodes every six minutes. Every dashboard we watched stayed green the whole time. Pods were running, nodes were Ready, CPU never crossed 60%. Nobody noticed until the AWS bill landed about 40% higher than … Read more

We Lost 3 Hours of Production Deployments Because of One Silent Node Provisioning Failure

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We Lost 3 Hours of Production Deployments Because of One Silent Node Provisioning Failure

By KP  |  TZoneLabs  |  DevOps & Cloud Engineering We were in the middle of a production scaling event when everything went quiet — in the worst way possible. No crash. No alert. No obvious Kubernetes error. Just pods stuck in Pending, GitHub Actions deployment jobs timing out, and the entire team staring at dashboards … Read more