Lantao Jin created SPARK-34064:
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             Summary: Broadcast job is not aborted even the SQL statement 
canceled
                 Key: SPARK-34064
                 URL: https://issues.apache.org/jira/browse/SPARK-34064
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 3.0.1, 3.2.0, 3.1.1
            Reporter: Lantao Jin
         Attachments: Screen Shot 2021-01-11 at 12.03.13 PM.png

SPARK-27036 introduced a runId for BroadcastExchangeExec to resolve the problem 
that a broadcast job is not aborted when broadcast timeout happens. Since the 
runId is a random UUID, when a SQL statement is cancelled, these broadcast 
sub-jobs still not canceled as a whole.




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