尝试从GC网络用户界面输入作业信息时，它永远不会打开，但主要工作列表中会显示此类消息：
A job with ID "2017-10-17_23_35_15-3310306527853724439" doesn't exist
gcloud dataflow jobs cancel会重复发送此类消息：
Failed to cancel job [2017-10-17_23_35_15-3310306527853724439]:
(882c3a8a1f6e0d10): Workflow modification failed. Causes:
(19752e1d053cad56): Operation cancel not allowed for job 2017-10-
17_23_35_15-3310306527853724439. Job is not yet ready for canceling.
Please retry in a few minutes.
更新或部署具有相同名称的新作业并不起作用。那么如何强行杀死这份工作？