Jan 11 · 3 min read · Taints and Tolerations apply a "repel" effect from the node side. Taints repel pods from certain nodes unless they have a matching toleration. A taint on a node (like key=value:NoSchedule) prevents all pods from scheduling there unless the pod specif...
Join discussionSep 16, 2025 · 5 min read · 🔹 Introduction The Certified Kubernetes Administrator (CKA) exam is one of the most recognized certifications in the DevOps and Cloud Native space. It validates hands-on skills required to manage production-grade Kubernetes clusters. The exam is bas...
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Aug 21, 2025 · 3 min read · Managing workloads in Kubernetes is not just about deploying applications – it’s about making sure your cluster resources (CPU, memory, nodes) are used efficiently and fairly. In this module, we’ll explore how Kubernetes schedules pods and how you ca...
Join discussionApr 19, 2025 · 5 min read · As Kubernetes becomes the de facto standard for container orchestration, understanding how the scheduler makes placement decisions is essential. In this article, we walk through the key components that influence pod scheduling and placement, includin...
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Feb 15, 2025 · 4 min read · 1. Scheduling Queue This is the first step in the scheduling process, where unscheduled pods are added to a queue. Extension Point: queueSort The scheduler prioritizes pods in the queue using a sorting mechanism. Default Plugin: PrioritySort: Pod...
Join discussionNov 4, 2024 · 26 min read · Manual Scheduling 💡 Bạn sẽ làm gì khi không có scheduler trong cluster? Bạn có thể không muốn dựa vào scheduler tích hợp sẵn và thay vào đó muốn tự mình lên lịch cho pod. Vậy chính xác thì scheduler hoạt động như thế nào. Hãy bắt đầu với một tệp ...
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Aug 15, 2024 · 8 min read · What is Scheduling in Kubernetes A scheduler watches for newly created Pods that have no Node assigned. For every Pod that the scheduler discovers, the scheduler becomes responsible for finding the best Node for that Pod to run on. The scheduler reac...
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Oct 26, 2023 · 6 min read · Scheduling Kubernetes users normally don’t need to choose a node to which their Pods should be scheduled. Instead, the selection of the appropriate node(s) is automatically handled by the Kubernetes scheduler. Automatic node selection prevents us...
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Aug 4, 2023 · 13 min read · Manual Scheduling Every pod has a field named nodeName, which by default is not set. Kubernetes adds it automatically. The scheduler goes through all the pods and looks for those that do not have this property set. Those are the candidates for sche...
Join discussionApr 28, 2023 · 4 min read · How does Kubernetes schedule a pod on a node?- Using a kube-scheduler component. Let's see how the scheduler schedules the pods in the cluster. The scheduler goes through all the pods and takes those pods which do not have the NodeName field. It then...
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