Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/19616#discussion_r165516090
--- Diff:
resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/Client.scala
---
@@ -784,6 +794,9 @@ private[spark] class Client(
val env = new HashMap[String, String]()
populateClasspath(args, hadoopConf, sparkConf, env,
sparkConf.get(DRIVER_CLASS_PATH))
env("SPARK_YARN_STAGING_DIR") = stagingDirPath.toString
+ if (isClientUnmanagedAMEnabled) {
+ System.setProperty("SPARK_YARN_STAGING_DIR", stagingDirPath.toString)
--- End diff --
Can this be propagated some other way? Using system properties is kinda
hacky, and makes it dangerous to run another Spark app later in the same JVM.
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