In a Kubernetes cluster the kube-scheduler pod may stay pending due to a container-name reservation conflict; this guide shows how to locate the offending container with ctr, delete it, restart kubelet, and verify that the pod returns to Running state.
This article explains the role of kube-scheduler in Kubernetes, details its scheduling workflow and plugin framework, and demonstrates how to define a custom scheduler by configuring KubeSchedulerConfiguration, creating a ConfigMap, deploying it via a Deployment, and verifying its operation alongside the default scheduler.
This article dissects the internal architecture of Kubernetes' kube-scheduler, walking through its initialization with Cobra, the Setup function, the creation of scheduler instances, the priority queue mechanics, scheduling cycles, and binding processes, providing comprehensive code examples to illuminate each step of the scheduling workflow.
This article dissects the kube-scheduler component of Kubernetes v1.21, detailing its design, initialization, main scheduling loop, pre‑selection (Predicates) and prioritization (Priorities) algorithms, and key source‑code functions such as scheduler.New(), Run(), scheduleOne(), and the scheduling algorithm that binds Pods to Nodes.
This guide explains how adjusting the kube‑scheduler's percentageOfNodesToScore setting can improve scheduling latency and throughput in large Kubernetes clusters, covering default behavior, configuration steps, practical examples, and important considerations for different cluster sizes.
This article explains how kube-scheduler in Kubernetes orchestrates pod placement by applying pre‑selection (predicates) and scoring (priorities) strategies, discusses fairness, resource efficiency, speed, flexibility, details common predicate and priority algorithms, and demonstrates practical scenarios with YAML and command‑line examples.
