Hi all: i want to ask a question, it seems that my spark job hangs as 20+ hours. in the spark history log, it shows 8999 completed task while 2 not finished. but when i go to the tasks page. i did not find any running tasks. All tasks are failed or Successful. I guess it seems that all tasks are finished while driver is not notified. i want to ask how to check or verify my guess.
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