LantaoJin edited a comment on pull request #31119:
URL: https://github.com/apache/spark/pull/31119#issuecomment-759218273


   > BTW why doesn't STS use SQL execution ID to cancel the jobs for a SQL 
query? 
   
   A `statementId` bound in `SparkOperation` can be accessed in two threads 
(HiveServer2-Handler-Pool and HiveServer2-Background-Pool). `executionId` 
always be treated as a thread local instance, though we could use it do the 
same thing. 


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