[{"data":1,"prerenderedAt":16},["ShallowReactive",2],{"blog-tag-en-eviction":3},[4],{"path":5,"title":6,"description":7,"date":8,"tags":9},"\u002Fblog\u002Fen\u002Fk3s-vpa-poddisruptionbudget-mass-eviction","A Resource Optimizer Broke K3s: All Replicas Evicted at Once. PodDisruptionBudget as the Last Line of Defense","A real incident where enabling automated resource optimization on K3s caused all replicas to be evicted simultaneously, triggering a full outage. This post explains why pods get evicted en masse and how PodDisruptionBudget's minAvailable setting prevents it.","2026-09-18",[10,11,12,13,14,15],"k3s","kubernetes","poddisruptionbudget","eviction","vertical-scaling","resource-optimization",1792592714304]