kubectl top node doesn't work with error: unable to handle the request (get nodes.metrics .k8s.io)

[sonyafenge]

What happened:
Run "kubectl get nodes" get correct nodes information, but run "kubectl top node" get error :

Error from server (ServiceUnavailable): the server is currently unable to handle the request (get nodes.metrics
.k8s.io)

Run "kubectl get pods" get correct pods informaiton, but run "kubectl top pod" get error :

Error from server (ServiceUnavailable): the server is currently unable to handle the request (get pods.metrics.
k8s.io)

What you expected to happen:
run "kubectl top node", get correct node resource usage information
run "kubectl top pod", get correct pod resource usage information

How to reproduce it (as minimally and precisely as possible):

1. run ./cluster/kube-up.sh to start arktos on GCP
2. after cluster running, run "kubectl top node" to check node resource usage status
   Anything else we need to know?:

Environment:

• Kubernetes version (use kubectl version):

Client Version: version.Info{Major:"2", Minor:"17+", GitVersion:"v2.17.1-83+fed7f520caa45f-dirty", GitCommit:"fed7f520caa45fd1f424377605b3e5820055218b", GitTreeState:"dirty", BuildDate:"2020-02-05T17:48:08Z", GoVersion:"go1.12.5", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"2", Minor:"17+", GitVersion:"v2.17.1-83+fed7f520caa45f-dirty", GitCommit:"fed7f520caa45fd1f424377605b3e5820055218b", GitTreeState:"dirty", BuildDate:"2020-02-10T18:52:47Z", GoVersion:"go1.12.5", Compiler:"gc", Platform:"linux/amd64"}

commit d511022b09bcfd54bddcfe488960916b184d0f56 (origin/master, origin/HEAD, master)
Author: Jun Shao <[email protected]>
Date:   Thu Jan 23 16:51:30 2020 -0800

• Cloud provider or hardware configuration:
  Google Cloud
• OS (e.g: cat /etc/os-release):

NAME="Ubuntu"
VERSION="18.04.3 LTS (Bionic Beaver)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 18.04.3 LTS"
VERSION_ID="18.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic

• Kernel (e.g. uname -a):

Linux alkaiddev 5.0.0-1029-gcp #30~18.04.1-Ubuntu SMP Mon Jan 13 05:40:56 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

• Install tools:
• Network plugin and version (if this is a network-related bug):
• Others: