JkSelf commented on issue #24978: [SPARK-28177][SQL] Adjust post shuffle partition number in adaptive execution URL: https://github.com/apache/spark/pull/24978#issuecomment-507576126 @cloud-fan Thanks for your quick reply. Yes, I used the external shuffle service. And the above exception is gone when disable external shuffle service. I am curious about why the master branch is incompatible with external shuffle service? Thanks.
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