[GitHub] [spark] AngersZhuuuu opened a new pull request #33935: [SPARK-36692][CORE] Improve Error statement when requesting thread dump while executor already stopped

[GitBox]

AngersZhuuuu opened a new pull request #33935:
URL: https://github.com/apache/spark/pull/33935


   ### What changes were proposed in this pull request?
   For now, when user check thread dump for a executor while this executor is 
stopped, the error log shows following might disturb users.
   
   
![image](https://user-images.githubusercontent.com/46485123/132471501-db96894d-abe9-4d62-9943-06c578382ef2.png)
   
   
   
   ### Why are the changes needed?
   Improve error message
   
   ### Does this PR introduce _any_ user-facing change?
   No
   
   
   ### How was this patch tested?
   
   
   


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