dongjoon-hyun commented on a change in pull request #30312:
URL: https://github.com/apache/spark/pull/30312#discussion_r528247250
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File path: core/src/main/scala/org/apache/spark/internal/config/package.scala
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@@ -1992,4 +1992,32 @@ package object config {
.version("3.1.0")
.doubleConf
.createWithDefault(5)
+
+ private[spark] val SHUFFLE_NUM_PUSH_THREADS =
+ ConfigBuilder("spark.shuffle.push.numPushThreads")
+ .doc("Specify the number of threads in the block pusher pool. These
threads assist " +
+ "in creating connections and pushing blocks to remote shuffle services
when push based " +
+ "shuffle is enabled. By default, the threadpool size is equal to the
number of cores.")
Review comment:
Question: Is it true or okay in YARN environment?
> By default, the threadpool size is equal to the number of cores.
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