Github user vanzin commented on a diff in the pull request: https://github.com/apache/spark/pull/9232#discussion_r43478370 --- Diff: yarn/src/main/scala/org/apache/spark/deploy/yarn/Client.scala --- @@ -1337,55 +1337,9 @@ object Client extends Logging { conf: Configuration, credentials: Credentials) { if (shouldGetTokens(sparkConf, "hive") && UserGroupInformation.isSecurityEnabled) { - val mirror = universe.runtimeMirror(getClass.getClassLoader) - - try { - val hiveConfClass = mirror.classLoader.loadClass("org.apache.hadoop.hive.conf.HiveConf") - val hiveConf = hiveConfClass.newInstance() - - val hiveConfGet = (param: String) => Option(hiveConfClass - .getMethod("get", classOf[java.lang.String]) - .invoke(hiveConf, param)) - - val metastore_uri = hiveConfGet("hive.metastore.uris") - - // Check for local metastore - if (metastore_uri != None && metastore_uri.get.toString.size > 0) { - val hiveClass = mirror.classLoader.loadClass("org.apache.hadoop.hive.ql.metadata.Hive") - val hive = hiveClass.getMethod("get").invoke(null, hiveConf.asInstanceOf[Object]) - - val metastore_kerberos_principal_conf_var = mirror.classLoader - .loadClass("org.apache.hadoop.hive.conf.HiveConf$ConfVars") - .getField("METASTORE_KERBEROS_PRINCIPAL").get("varname").toString - - val principal = hiveConfGet(metastore_kerberos_principal_conf_var) - - val username = Option(UserGroupInformation.getCurrentUser().getUserName) - if (principal != None && username != None) { - val tokenStr = hiveClass.getMethod("getDelegationToken", - classOf[java.lang.String], classOf[java.lang.String]) - .invoke(hive, username.get, principal.get).asInstanceOf[java.lang.String] - - val hive2Token = new Token[DelegationTokenIdentifier]() - hive2Token.decodeFromUrlString(tokenStr) - credentials.addToken(new Text("hive.server2.delegation.token"), hive2Token) - logDebug("Added hive.Server2.delegation.token to conf.") - hiveClass.getMethod("closeCurrent").invoke(null) - } else { - logError("Username or principal == NULL") - logError(s"""username=${username.getOrElse("(NULL)")}""") - logError(s"""principal=${principal.getOrElse("(NULL)")}""") - throw new IllegalArgumentException("username and/or principal is equal to null!") - } - } else { - logDebug("HiveMetaStore configured in localmode") - } - } catch { - case e: java.lang.NoSuchMethodException => { logInfo("Hive Method not found " + e); return } - case e: java.lang.ClassNotFoundException => { logInfo("Hive Class not found " + e); return } - case e: Exception => { logError("Unexpected Exception " + e) - throw new RuntimeException("Unexpected exception", e) - } + val util = new YarnSparkHadoopUtil() --- End diff -- This should be `YarnSparkHadoopUtil.get`; you could also avoid the `val` altogether.
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