W0508 09:09:32.494450   21125 top_pod.go:266] Metrics not available for pod demo-test/demo-676fd5b47f-5gjm5, age: 14h48m30.494432951s
error: Metrics not available for pod demo-test/demo-676fd5b47f-5gjm5, age: 14h48m30.494432951s

重启各节点的kubelet解决