Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/579#discussion_r12056301
--- Diff: core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala ---
@@ -128,6 +129,15 @@ object SparkSubmit {
childArgs += ("--class", appArgs.mainClass)
}
+ if (clusterManager == YARN) {
+ // The choice of class is arbitrary, could use any spark-yarn class
+ if (!Utils.classIsLoadable("org.apache.spark.deploy.yarn.Client")) {
--- End diff --
Is this to guard against the `ClassDefNotFoundException` that we ran into?
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