Github user steveloughran commented on a diff in the pull request:
https://github.com/apache/spark/pull/11033#discussion_r55574388
--- Diff:
yarn/src/main/scala/org/apache/spark/deploy/yarn/YarnSparkHadoopUtil.scala ---
@@ -326,6 +330,65 @@ class YarnSparkHadoopUtil extends SparkHadoopUtil {
}
}
+ /**
+ * Are the credentials supplied by the environment, rather than a TGT or
keytab?
+ * This predicate will always return true in a YARN AM, as the relevant
env var is
+ * always set (it is used to pass down the AM/RM token). In the client,
if it is true
+ * it means that the application was launched in an Oozie workflow (or
similar) with
+ * all tokens created in advance.
+ * @return the path to a credentials file if that is where the
credentials came from
+ */
+ def environmentCredentialsFile() : Option[File] = {
--- End diff --
no, looks like I got something wrong during some cherry picking
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