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https://issues.apache.org/jira/browse/HADOOP-6057?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12720365#action_12720365
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Tsz Wo (Nicholas), SZE commented on HADOOP-6057:
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+1 on Todd's comment. Otherwise, malicious users may learn directory contents
even they are not allowed to.
> "Permission Denied" message for non-existing file/dir.
> ------------------------------------------------------
>
> Key: HADOOP-6057
> URL: https://issues.apache.org/jira/browse/HADOOP-6057
> Project: Hadoop Core
> Issue Type: Bug
> Components: dfs
> Affects Versions: 0.20.0
> Reporter: Suman Sehgal
> Priority: Minor
>
> hdfs gives permission denied message for non-existent file/dir.
> command :
> ========
> bin/hadoop dfs -cat /user/<user1>out/part-00000/<dir>/<file> by <user1>
> For the above mentioned command, it should return "file doesn't exists"
> message but the error message displayed is :
> cat: org.apache.hadoop.security.AccessControlException: Permission denied:
> user=<user1>, access=EXECUTE, inode="part-00000":<user1>:users:rw-------
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