Etcd Defragmentation: Reclaiming Space Without Cluster Disruption
My etcd database was 508 MB on disk and only 84 MB of it held live data. The other 400-odd megabytes were free pages that etcd had no intention of h…
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Diagnosing KubeAPIErrorBudgetBurn: When a 7-Year-Old Disk Takes Down Your Control Plane
If you manage Kubernetes on bare metal or on prem environments, you'll eventually encounter the KubeAPIErrorBudgetBurn alert from the kube-prometheu…
etcd: mvcc: database space exceeded: full recovery guide for on-prem Kubernetes
It was a regular working day when the first alert landed. Kubernetes health check showing the control plane was degraded. I'd seen these before. Usu…