Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/21669#discussion_r223086778
--- Diff: core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala ---
@@ -763,7 +764,7 @@ private[spark] class SparkSubmit extends Logging {
// [SPARK-20328]. HadoopRDD calls into a Hadoop library that fetches
delegation tokens with
// renewer set to the YARN ResourceManager. Since YARN isn't configured
in Mesos mode, we
- // must trick it into thinking we're YARN.
+ // must trick it into thinking we're YARN. Same is on for Kubernetes.
--- End diff --
Better to make the comment more generic instead of tacking on every
resource manager name here...
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