Why Kubernetes Pod Disruption Budgets Fail Under Node Drains
DevOps Daily with Fexingo: CI/CD, Kubernetes, and Modern Software Operations · 2026-06-01 · 11 min
Episode notes
Episode 25 of DevOps Daily with Fexingo dives into a specific Kubernetes failure mode: Pod Disruption Budgets (PDBs) that prevent node drains during planned maintenance. Lucas and Luna break down a real incident where a cluster's PDBs blocked critical node updates, causing a multi-hour outage. They explain how PDBs work, why common configurations like minAvailable: 100% can lock you into a deadlock, and the practical fix: using percentage-based budgets with a small tolerance. The episode includes a concrete simulation using a three-replica deployment and two-node cluster. No fluff, just the one angle that will save your next maintenance window. #Kubernetes #PodDisruptionBudget #NodeDrain #DevOps #SiteReliabilityEngineering #CloudNative #ContainerOrchestration #HighAvailability #MaintenanceWindow #ClusterOperations #K8sFailureMode #ProductionIncident #Technology #FexingoBusiness #BusinessPodcast #DevOpsDaily #ResilienceEngineering #RollingUpdate Keep every episode free: buymeacoffee.com/fexingo