Github user harishreedharan commented on a diff in the pull request:
https://github.com/apache/spark/pull/4688#discussion_r25988487
--- Diff:
yarn/src/main/scala/org/apache/spark/deploy/yarn/YarnSparkHadoopUtil.scala ---
@@ -82,6 +100,179 @@ class YarnSparkHadoopUtil extends SparkHadoopUtil {
if (credentials != null) credentials.getSecretKey(new Text(key)) else
null
}
+ private[spark] override def scheduleLoginFromKeytab(): Unit = {
+ sparkConf.getOption("spark.yarn.principal").foreach { principal =>
+ val keytab = sparkConf.get("spark.yarn.keytab")
+ val delegationTokenRenewerRunnable =
--- End diff --
The reason it is not stashed away in a lazy is because the principal and
keytab would need to be instance vars if we did. By doing this, I can avoid
that.
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