cloud-fan commented on PR #46560:
URL: https://github.com/apache/spark/pull/46560#issuecomment-2107858848

   @viirya I think https://github.com/apache/spark/pull/36564 's PR description 
was very clear about the details. Driver never knows if the task commit is 
successful or not. It only knows: 1) if the "ask for commit" request is 
approved or not. 2) if the task completes successfully or not.
   
   The flaky test triggers it: 1) it injects failure to `commitTask`, which 
happens after the task receives driver's permission to commit. 2) the task 
fails eventually.


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