[FLINK-28598] ClusterEntryPoint can't get the real exit reason when shutting down

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.14.2, 1.15.1
• Component/s: Deployment / YARN, Runtime / Task
• Assignee: Unassigned
• Reporter: zlzhang0122
• Created: 19/Jul/22 02:42
• Updated: 03/Nov/22 07:52

Description

When the cluster is starting and some error occurs, the ClusterEntryPoint will shutDown the cluster asynchronous, but if it can't get a Throwable, the shutDown reason will be null, but actually if it's a user code problem and this may happen. 

I think we can get the real exit reason caused by user code and pass it to the diagnostics parameter, this may help users a lot.