HyukjinKwon commented on a change in pull request #32326:
URL: https://github.com/apache/spark/pull/32326#discussion_r619767006
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File path: core/src/main/scala/org/apache/spark/SparkContext.scala
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@@ -1812,6 +1812,13 @@ class SparkContext(config: SparkConf) extends Logging {
/** The version of Spark on which this application is running. */
def version: String = SPARK_VERSION
+ /**
+ * Return an array of executors' host name from the block manager.
+ */
+ def getExecutorHosts: Array[String] = {
Review comment:
I wouldn't add this as an API at `SparkContext`. You could just do it
with `getExecutorMemoryStatus.map(_._1).toArray`.
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