Github user dongjoon-hyun commented on the issue:
https://github.com/apache/spark/pull/18466
Hi, @wangyum .
Is this a regression with2.2? I want to reproduce this in YARN cluster, but
2.1.1 looks okay to me.
```
$ spark-shell --master yarn --conf spark.reducer.maxReqSizeShuffleToMem=1K
...
Spark context Web UI available at http://172.22.115.166:4041
Spark context available as 'sc' (master = yarn, app id =
application_1498511273906_0006).
Spark session available as 'spark'.
Welcome to
____ __
/ __/__ ___ _____/ /__
_\ \/ _ \/ _ `/ __/ '_/
/___/ .__/\_,_/_/ /_/\_\ version 2.1.1.2.6.1.0-129
/_/
Using Scala version 2.11.8 (Java HotSpot(TM) 64-Bit Server VM, Java
1.8.0_112)
Type in expressions to have them evaluated.
Type :help for more information.
scala> sc.parallelize(0 until 3000000, 10).repartition(2001).count()
res0: Long = 3000000
```
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