Shockang edited a comment on pull request #24595:
URL: https://github.com/apache/spark/pull/24595#issuecomment-877668817


   @jiangxb1987 @cloud-fan @yeshengm I just deleted the following three lines 
of code to solve this bug:
   [SPARK-35508 job group and description do not apply on 
broadcasts](https://issues.apache.org/jira/browse/SPARK-35508?jql=project%20%3D%20SPARK%20AND%20issuetype%20%3D%20Bug%20AND%20status%20%3D%20Open%20AND%20assignee%20in%20(EMPTY)%20ORDER%20BY%20priority%20ASC%2C%20cf%5B12310200%5D%20ASC%2C%20updated%20DESC)
   
   `// Setup a job group here so later it may get cancelled by groupId if 
necessary.
               sparkContext.setJobGroup(runId.toString, s"broadcast exchange 
(runId $runId)",
   interruptOnCancel = true)`
   
   Could you tell me the necessity of setJobGroup here? It will override the 
configuration of job group and job description in the user code.


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