Github user jerryshao commented on a diff in the pull request: https://github.com/apache/spark/pull/21895#discussion_r206725814 --- Diff: core/src/main/scala/org/apache/spark/deploy/history/FsHistoryProvider.scala --- @@ -973,6 +978,42 @@ private[history] object FsHistoryProvider { private[history] val CURRENT_LISTING_VERSION = 1L } +private[history] trait CachedFileSystemHelper extends Logging { --- End diff -- As discussed offline, my main concern is about cache inconsistency if user changed the file permission during cache valid time.
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