Kubernetes: Killing container with id docker://xxxx: Need to kill Pod问题

当前Kubernetes版本 v1.9.7，当delete pod失败时，使用kubectl describe后发现这个pod有以下events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

执行时会提示风险：

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.