| 资源类 | 0/5 nodes available: insufficient cpu/memory |
|---|---|
| 污点类 | node(s) had untolerated taint |
| 亲和类 | node(s) didn't match Pod's node affinity/selector |
| 拓扑类 | volume node affinity conflict：卷与节点不同区 |
| 端口类 | HostPort 冲突：节点上端口被占 |
排查命令
排查命令
kubectl describe pod web-1 | grep -A3 "FailedScheduling"
kubectl get nodes -o custom-columns=NAME:.metadata.name,CPU:.status.allocatable.cpu
kubectl describe node node-1 | grep -E "Taints|Allocated"集群『看起来有空闲』但调度不上：requests 碎片化所致——调度按单节点余量而非总和计算。