21.4. 使用 CLI 查询集群节点状态

流程

1. 列出集群节点的状态。验证输出是否列出所有预期的 control plane 和计算节点，以及每个节点的状态是否为 Ready ：

   $ oc get nodes

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   输出示例

   NAME                          STATUS   ROLES    AGE   VERSION
   compute-1.example.com         Ready    worker   33m   v1.22.1
   control-plane-1.example.com   Ready    master   41m   v1.22.1
   control-plane-2.example.com   Ready    master   45m   v1.22.1
   compute-2.example.com         Ready    worker   38m   v1.22.1
   compute-3.example.com         Ready    worker   33m   v1.22.1
   control-plane-3.example.com   Ready    master   41m   v1.22.1

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2. 查看每个集群节点的 CPU 和内存资源的可用性：

   $ oc adm top nodes

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   输出示例

   NAME                          CPU(cores)   CPU%   MEMORY(bytes)   MEMORY%
   compute-1.example.com         128m         8%     1132Mi          16%
   control-plane-1.example.com   801m         22%    3471Mi          23%
   control-plane-2.example.com   1718m        49%    6085Mi          40%
   compute-2.example.com         935m         62%    5178Mi          75%
   compute-3.example.com         111m         7%     1131Mi          16%
   control-plane-3.example.com   942m         26%    4100Mi          27%

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