[GitHub] [spark] mridulm commented on pull request #42071: [SPARK-44209] Expose amount of shuffle data available on the node

["mridulm (via GitHub)" <gi...@apache.org>]

mridulm commented on PR #42071:
URL: https://github.com/apache/spark/pull/42071#issuecomment-1645080237

   This is going to be very expensive to compute, and has nontrivial performance impact (particularly on a service which tends to be already loaded and critical).
   
   Exposing this from executors, as part of data gen and aggregating per node would be much more cheaper


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