有人能分享一下kubectl exec是如何工作的吗，比如技术概述。还有什么方法来排除故障。

例如，我有以下问题：当试图连接到吊舱时：

kubectl.exe:I0502 04:25:18.562064 7288 loader.go:357]从文件C:\user\u615648/.kube/Config加载的配置在行：1 char:1+.\kubectl.exe exec dataarchives-service-264802370-mjwcl date-n FDM 18....48/.kube/Config:string)[],RemoteException+FullyQualifiedErrorId:NativeCommandError

I0502 04:25:18.636776 7288 round_trippers.go:414]获取https://fdmmgmt.uksouth.cloudapp.azure.com/api/v1/namespaces/fdm-development/pods/dataarchives-service-264802370-MJWCL I0502 04:25:18.636776 7288 round_trippers.go:421]请求头:I0502 04:25:18.636776 7288 round_trippers.go:424]接受：application/json,/I0502.Go:424]用户-代理：KubectL.exe/V1.9.3(Windows/AMD64)Kubernetes/D283541 I0502 04:25:18.716758 7288 Round_Trippers.Go:439]响应状态：200 79毫秒内确定I0502 04:25:18.716758 7288 Round_Trippers.Go:442]响应头:I0502 04:25:18.716758 7288 Round_Trippers.Go:445]内容-类型：Application/JSON I0502 04:25:18.716758 7288 Round_Trippers.Go:445]内容-长度：18.716758 7288 round_trippers.go:445]日期：2018年05月02日04:25:18 GMT I0502 04:25:18.717872 7288 Request.go:873]响应正文：{“kind”：“pod”，“apiversion”：“v1”，“metadata”：{“name”：“dataarchives-service-264802370-MJWCL”，“generatename”：“da“taarchives-service-264802370-”，“namespace”：“FDM-开发”，“无私”：“/api/v1/namespaces/fdm-development/pods/dataarchives-service-264802370-MJWCL”，“uid”：“eeb7d14f-49 5e-11e8-9d96-002248014205”，“resourceversion”：“15681866”，“creationtimestamp”：“2018-04-26t14:34:31z”，“labels”：{“app”：“dataadogistics”，“kubernetes.io/created-by”：“{\”kind\“:\”serializedreference\“，\”apiversion\“:\”v1\“，\”reference\“：{\”kind\“:\”replicaset\“，\”namespace\“:\”fdm-development\“，\”n ame\“:\”dataarchives-service-264802370\“，\”uid\“:\”eeaf949c-495e-11e8-9d96-002248014205\“，\”apiversions\“:\”ownerrefe rences“：[{”apiversion“：”extensions/v1beta1“,”kind“：”replicaset“,”name“：”dataarchives-service-264802370“,”uid“：”eeaf949c-495e-11e8-9d96-002248014205“,”controller“：true,”b lockownerdeletion“：true}]},”spec“：{”volumes“：[{”name“：”uploadsfileshare[truncated2143 chars]I0502https://fdmmgmt.uksouth.cloudapp.azure.com/api/v1/namespaces/fdm-development/pods/dataarchives-service-26480237 0-Mjwcl/exec？command=date&command=cmd&container=dataarchives&container=dataarchives&container=dataarchives&stderr=true&stdout=true I0502 04:25:18.908749 7288 round_trippers.go:421]请求头:I0502 0502 04:25:18.908749
7288 round_trippers.go:424]X-stream-protocol-version:v3.channel.k8s.io I0502 04:25:18.908749 7288 round_trippers.go:424]X-stream-protocol-version:channel.k8s.io I0502 04:25:18.908749 7288 round_trippers.go:424]
用户代理:kubectL.exe/v1.9.3（windows/amd64)kubernetes/d283541 I0502 04:25:19.086745 7288 round_trippers.go:439]响应状态：401未经授权177毫秒I0502 04:25:19.086745 7288 round_trippers.go:442]响应头:I0502 04:25:19.086745 7288_trippers.go:445]日期：2018年05月2日04:25:19 GMT I0502 04:25:19.086745 7288 Round_Trippers.go:445]内容-长度：12 I0502 04:25:19.086745 7288 Round_Trippers.go:445]内容-类型：文本/普通；charset=UTF-8 F0502 04:25:19.086745 7288 helpers.go:119]错误：无法升级连接：未经授权

感谢帮助。