Kubernetes Scheduler Principles and Tuning
Overview The Kubernetes scheduler is one of the most critical control plane components—it decides which node each Pod runs on. Scheduling quality directly impacts cluster resource utilization, application performance, and reliability. Understanding how the scheduler works is fundamental to effective K8s production operations. This article systematically covers the scheduling flow, filter-and-score mechanism, affinity, taints and tolerations, priority and preemption, and custom schedulers. Based on Kubernetes v1.30. Reference: Kubernetes Scheduler Documentation...