Unbounded Ephemeral Storage Triggers Kubernetes Pod Evictions and Autoscaler Thrashing

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Background worker pods that write scratch files and logs to container filesystems without ephemeral storage limits can push worker nodes into disk pressure. The kubelet responds by evicting pods, which can cascade into cluster-wide pod churn and repeated node provisioning and removal by autoscalers. This drives up cloud compute costs during the incident. The article outlines how to identify pods consuming node disk space using kubelet stats and events. It also covers configuring kubelet eviction thresholds to make clusters more resilient.

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

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