Github user szyszy commented on a diff in the pull request: https://github.com/apache/spark/pull/20761#discussion_r187808457 --- Diff: resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/Client.scala --- @@ -86,6 +86,13 @@ private[spark] class Client( sparkConf.get(AM_CORES) } + private val driverResourceTypes: collection.immutable.Map[String, String] = --- End diff -- If I change it to Map, I have a compilation error because the call below of sparkConf.getAllWithPrefix(..).toMap returns an immutable Map. Error:(91, 84) type mismatch; found : scala.collection.immutable.Map[String,String] required: scala.collection.mutable.Map[String,String]
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