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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2021/04/08 18:55:24 UTC

[GitHub] [spark] yijiacui-db commented on pull request #31944: [SPARK-34854][SQL][SS] Expose source metrics via progress report and add Kafka use-case to report delay.

yijiacui-db commented on pull request #31944:
URL: https://github.com/apache/spark/pull/31944#issuecomment-816064025


   > I've tested it on real cluster and works fine.
   > Just a question. How this it intended to use for dynamic allocation?
   
   Users can implement this interface in their customized SparkDataStream and know how far falling behind through the progress listener. Maybe this can provide more useful information to guide/trigger the auto scaling.


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