[SPARK-30999] Don't cancel a QueryStageExec when it's already finished

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 3.0.0
• Component/s: SQL
• Assignee: wuyi
• Reporter: wuyi
• Created: 01/Mar/20 15:41
• Updated: 12/Apr/20 22:54
• Resolved: 03/Mar/20 21:41

Description

We should not cancel a QueryStageExec when it's already finished(succeed or failed). In worst case, it will re-failed the failed stage again on cancel.

Issue Links

• links to: GitHub Pull Request #27752