viirya commented on a change in pull request #28788:
URL: https://github.com/apache/spark/pull/28788#discussion_r438395914
##########
File path:
resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/config.scala
##########
@@ -77,7 +79,7 @@ package object config {
"a Hadoop installation separately.")
.version("2.4.6")
.booleanConf
- .createWithDefault(true)
+ .createWithDefault(IS_HADOOP_PROVIDED)
Review comment:
Curious about why a fixed default config value is not enough?
##########
File path:
resource-managers/yarn/src/main/resources/org/apache/spark/deploy/yarn/config.properties
##########
@@ -0,0 +1 @@
+spark.yarn.populateHadoopClasspath = ${spark.yarn.populateHadoopClasspath}
Review comment:
Do you actually mean `spark.yarn.isHadoopProvided` here?
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