Articles tagged with "hpa"
Running HPA and VPA together has long been considered risky in Kubernetes. GKE's Multidimensional Pod Autoscaler and the upstream AEP-5342 proposal point toward a resolution. Here's what K3s and Kubo users can do today.
When kubectl top or HPA suddenly stops working, the first thing to suspect is metrics-server. Here's why K3s ships it by default, why standard Kubernetes (kubeadm) always requires a manual install, and how to diagnose the gap.
Kubernetes HPA sums resource usage across every container in a Pod, so Istio sidecars and logging agents dilute the scaling decision. Here's how the ContainerResource metric fixes it, in a K3s/Kubo context.
K3s HPA won't scale even though CPU usage looks normal. The culprit is a mismatch between Prometheus Adapter's metrics-relist-interval/metrics-max-age and the HPA sync-period. Here's the three-layer delay chain and how to diagnose it.
Enabling both HPA and VPA in Kubernetes can make two well-intentioned automations fight each other, sending autoscaling into an endless spiral. Here's why the conflict happens, and how to combine them safely with updateMode and metric separation.
KEDA and HPA aren't an either-or choice. When event-driven workloads grow on K3s/Kubernetes, here's why HPA alone hits its limits and how to decide when to add KEDA alongside it.
Your HPA increased replica count, but the Pod is stuck Pending. The real cause is that Cluster Autoscaler needs minutes to add a node. Here's the delay breakdown, a diagnostic checklist, overprovisioning, and how Karpenter compares.
When CPU/memory-based HPA on K3s can't keep up with event-driven workloads, should you extend HPA or adopt KEDA, the CNCF-graduated project? Here's a 3-point decision framework, plus what to watch for on K3s.
You set up an HPA in K3s and Pods still won't scale. The usual culprits are unset resource requests silently disabling metrics, and a self-reinforcing HPA/VPA feedback loop. Here's how to diagnose and fix it.
When adding more Pods to Kubernetes doesn't fix latency, the real cause may not be CPU at all, but invisible throttling or database connection pool exhaustion. Here's how to diagnose and fix the hidden ceiling.
Master Kubernetes autoscaling with HPA, VPA, and KEDA. Learn each tool's strengths, combination patterns, and cost optimization impact with practical examples.