Github user jinxing64 commented on the issue:
https://github.com/apache/spark/pull/18388
>Is this all a single application?
No, it's data warehouse, there are thousands ETLs
>You say 6000 nodes with 64 executors on each host, how many cores per
executor?
1 core per executor.
> have you tried using spark.reducer.maxReqsInFlight
I think we didn't.
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