Github user tgravescs commented on a diff in the pull request: https://github.com/apache/spark/pull/16923#discussion_r101304225 --- Diff: sql/hive/src/main/scala/org/apache/spark/sql/hive/client/HiveClientImpl.scala --- @@ -106,21 +106,31 @@ private[hive] class HiveClientImpl( // Set up kerberos credentials for UserGroupInformation.loginUser within // current class loader - // Instead of using the spark conf of the current spark context, a new - // instance of SparkConf is needed for the original value of spark.yarn.keytab - // and spark.yarn.principal set in SparkSubmit, as yarn.Client resets the - // keytab configuration for the link name in distributed cache if (sparkConf.contains("spark.yarn.principal") && sparkConf.contains("spark.yarn.keytab")) { val principalName = sparkConf.get("spark.yarn.principal") - val keytabFileName = sparkConf.get("spark.yarn.keytab") - if (!new File(keytabFileName).exists()) { - throw new SparkException(s"Keytab file: ${keytabFileName}" + - " specified in spark.yarn.keytab does not exist") - } else { - logInfo("Attempting to login to Kerberos" + - s" using principal: ${principalName} and keytab: ${keytabFileName}") - UserGroupInformation.loginUserFromKeytab(principalName, keytabFileName) + val keytabFileName = { + val keytab = sparkConf.get("spark.yarn.keytab") + if (new File(keytab).exists()) { + keytab + } else { + // In case user still uses old SparkConf (reset by yarn#client to point to location in --- End diff -- I'm not sure I understand the comment here. This doesn't have anything to do with the user creating an old SparkConf? Isn't this just in yarn client mode it has to use the original SparkConf where yarn.Client didn't update the location of the keytab file? If that is the case perhaps just update the comment to say something to that affect.
--- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. --- --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org