kubectl describe pod 时发现这个pod有个event信息：

Events:
  Type    Reason   Age                    From                                         Message
  ----    ------   ----                   ----                                         -------
  Normal  Killing  16s (x19871 over 26d)  kubelet, cn-hangzhou.i-bp1azsintzya8q0ykjsk  Killing container with id docker://log-collector:Need to kill Pod

这个问题是Kubernetes偶发的BUG，使用以下命令强制删除：

kubectl delete pod xxxxxx --grace-period=0 --force

执行时提示：

warning: Immediate deletion does not wait for confirmation that the running resource has been terminated. The resource may continue to run on the cluster indefinitely.

注：

强制删除命令

 # 删除POD
    kubectl delete pod PODNAME --force --grace-period=0

 # 删除NAMESPACE
    kubectl delete namespace NAMESPACENAME --force --grace-period=0

转自：https://johng.cn/k8s-killing-container-with-id-docker-need-to-kill-pod/