Github user wangyum commented on a diff in the pull request:
https://github.com/apache/spark/pull/21734#discussion_r201275550
--- Diff:
resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/YarnSparkHadoopUtil.scala
---
@@ -193,8 +193,7 @@ object YarnSparkHadoopUtil {
sparkConf: SparkConf,
hadoopConf: Configuration): Set[FileSystem] = {
val filesystemsToAccess = sparkConf.get(FILESYSTEMS_TO_ACCESS)
- .map(new Path(_).getFileSystem(hadoopConf))
- .toSet
+ val isRequestAllDelegationTokens = filesystemsToAccess.isEmpty
--- End diff --
Users should be able to configure their needed FileSystem for better
performance at least.
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