Github user jinxing64 commented on the issue:
https://github.com/apache/spark/pull/18487
`maxReqsInFlight` and `maxBytesInFlight` is hard to control the # of blocks
in a single request. When # of map is very high, this change can alleviate the
pressure of shuffle server.
@dhruve what is the proper value for `maxBlocksInFlightPerAddress`? I like
this pr if there is no performance issue. It will be great if you can post some
benchmark.
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