1.10.11 Pod Priority and Preemption скачать в хорошем качестве

1.10.11 Pod Priority and Preemption

Summary of article: https://kubernetes.io/docs/concepts/schedu.... The article is about: Pod Priority in Kubernetes allows assigning importance to Pods, with higher priorities leading to scheduling over lower priority Pods. Preemption lets higher priority Pods replace lower priority ones if needed for scheduling. A PriorityClass object defines a mapping from name to priority value, with higher values indicating higher priority. Existing clusters may need a globalDefault PriorityClass for existing Pods to maintain priority. Non-preempting PriorityClass can mark Pods as non-preemptable, useful for certain workloads. Preemption can have side effects like unnecessary Pod evictions, which can be managed by adjusting priority levels. Troubleshooting includes addressing issues like unnecessary preemptions and managing interactions between Pod priorities and Quality of Service class.