[GitHub] [spark] Hisoka-X commented on pull request #41755: [SPARK-43999][SQL][CORE] Support force finish useless stage when AQE on

["Hisoka-X (via GitHub)" <gi...@apache.org>]

Hisoka-X commented on PR #41755:
URL: https://github.com/apache/spark/pull/41755#issuecomment-1652759143

   > The reason why I closed my pr is that we can not cancel a broadcast query stage because exchange reuse shares the broadcast future instance. It's ok to cancel a shuffle stage before executing final plan, but note that we can not cancel an intermediate shuffle stage to avoid breaking reuse shuffle exchange.
   
   Sorry about late response. I don't think the current solution will cancel the reuse stage, because this PR decides whether to cancel it by judging whether there is still a reference to a stage in the PhysicalPlan. No reference means that he will not be reused.


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