Github user holdenk commented on a diff in the pull request:
https://github.com/apache/spark/pull/9272#discussion_r43707087
--- Diff: core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala ---
@@ -520,6 +520,8 @@ object SparkSubmit {
}
if (args.principal != null) {
require(args.keytab != null, "Keytab must be specified when the
keytab is specified")
+ sysProps.put("spark.yarn.keytab", args.keytab)
+ sysProps.put("spark.yarn.principal", args.principal)
--- End diff --
We might want to look at yarn Client.scala setupCredentials() since its
doing something pretty similar it looks like.
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