ViewFileSystem allows 1) unconditional listing of internal directories (mount points) and 2) and changing work directories.
1) requires read permission
2) requires executable permission
However, the hardcoded PERMISSION_RRR == 444 for FileStatus representing an internal dir does not have executable bit set.
This confuses YARN localizer for public resources on viewfs because it requires executable permission for "other" on all of the ancestor directories of the resource.