diff --git a/resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/Client.scala b/resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/Client.scala index 70826ed326ba..be24cd11b9c8 100644 --- a/resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/Client.scala +++ b/resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/Client.scala @@ -100,6 +100,7 @@ private[spark] class Client( private var principal: String = null private var keytab: String = null private var credentials: Credentials = null + private var amKeytabFileName: String = null private val launcherBackend = new LauncherBackend() { override def onStopRequest(): Unit = { @@ -465,7 +466,7 @@ private[spark] class Client( logInfo("To enable the AM to login from keytab, credentials are being copied over to the AM" + " via the YARN Secure Distributed Cache.") val (_, localizedPath) = distribute(keytab, - destName = sparkConf.get(KEYTAB), + destName = Some(amKeytabFileName), appMasterOnly = true) require(localizedPath != null, "Keytab file already distributed.") } @@ -701,6 +702,9 @@ private[spark] class Client( // Save Spark configuration to a file in the archive. val props = new Properties() sparkConf.getAll.foreach { case (k, v) => props.setProperty(k, v) } + // Override spark.yarn.key to point to the location in distributed cache which will be used + // by AM. + Option(amKeytabFileName).foreach { k => props.setProperty(KEYTAB.key, k) } confStream.putNextEntry(new ZipEntry(SPARK_CONF_FILE)) val writer = new OutputStreamWriter(confStream, StandardCharsets.UTF_8) props.store(writer, "Spark configuration.") @@ -989,8 +993,7 @@ private[spark] class Client( val f = new File(keytab) // Generate a file name that can be used for the keytab file, that does not conflict // with any user file. - val keytabFileName = f.getName + "-" + UUID.randomUUID().toString - sparkConf.set(KEYTAB.key, keytabFileName) + amKeytabFileName = f.getName + "-" + UUID.randomUUID().toString sparkConf.set(PRINCIPAL.key, principal) } // Defensive copy of the credentials diff --git a/sql/hive/src/main/scala/org/apache/spark/sql/hive/client/HiveClientImpl.scala b/sql/hive/src/main/scala/org/apache/spark/sql/hive/client/HiveClientImpl.scala index dc9c3ff33542..24dfd33bc368 100644 --- a/sql/hive/src/main/scala/org/apache/spark/sql/hive/client/HiveClientImpl.scala +++ b/sql/hive/src/main/scala/org/apache/spark/sql/hive/client/HiveClientImpl.scala @@ -106,10 +106,6 @@ 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")