metrics-server- 提示the server is currently unable to handle the request -解决方式

安装完metrics-server -v0.5.2版后，

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

解决方式,修改yaml文件

kind: Deployment
spec:
  template:
    spec:
      nodeName: k8s-master          ##第一次改动，新增此行
      containers:
      - args:
        .....
        - --secure-port=4430             ##第三次改动，原4443改成4430
        ......
        - --kubelet-insecure-tls         ##第二次改动，新增此行
        .......
        ports:
        - containerPort: 4430            ##第三次改动，原4443改成4430

改完看看下效果

# kubectl top pods -A
NAMESPACE              NAME                                         CPU(cores)   MEMORY(bytes)   
default                mongo-75f59d57f4-f5s24                       23m          81Mi            
kube-system            coredns-7d89d9b6b8-mtk84                     4m           18Mi            
kube-system            coredns-7d89d9b6b8-x864t                     2m           14Mi            
kube-system            etcd-k8s-master                              32m          86Mi            
kube-system            kube-apiserver-k8s-master                    127m         337Mi           
kube-system            kube-controller-manager-k8s-master           54m          54Mi            
kube-system            kube-flannel-ds-f467b                        6m           36Mi            
kube-system            kube-flannel-ds-xb8lh                        4m           31Mi            
kube-system            kube-proxy-2z76m                             3m           17Mi            
kube-system            kube-proxy-6wkrd                             1m           18Mi            
kube-system            kube-scheduler-k8s-master                    15m          21Mi            
kube-system            metrics-server-7f965c6c96-c96xh              8m           21Mi            
kubernetes-dashboard   dashboard-metrics-scraper-856586f554-r2zfp   1m           15Mi            
kubernetes-dashboard   kubernetes-dashboard-67484c44f6-4wpw7        1m           16Mi           
# kubectl top nodes
NAME         CPU(cores)   CPU%   MEMORY(bytes)   MEMORY%   
k8s-master   555m         27%    1503Mi          40%       
k8s-node1    141m         7%     725Mi           19% 

OK，搞定。