Github user vanzin commented on a diff in the pull request: https://github.com/apache/spark/pull/14065#discussion_r69988196 --- Diff: yarn/src/main/scala/org/apache/spark/deploy/yarn/Client.scala --- @@ -390,8 +390,9 @@ private[spark] class Client( // Upload Spark and the application JAR to the remote file system if necessary, // and add them as local resources to the application master. val fs = destDir.getFileSystem(hadoopConf) - val nns = YarnSparkHadoopUtil.get.getNameNodesToAccess(sparkConf) + destDir - YarnSparkHadoopUtil.get.obtainTokensForNamenodes(nns, hadoopConf, credentials) + hdfsTokenProvider(sparkConf).setNameNodesToAccess(sparkConf, Set(destDir)) --- End diff -- +1; it would be better if all interactions with token providers were done through the common interface; it seems like these HDFS-specific calls could easily be moved to the HDFS token provider.
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