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https://issues.apache.org/jira/browse/HDFS-5802?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiao Chen updated HDFS-5802:
----------------------------
Attachment: HDFS-5802.001.patch
Enhanced the message under the reported scenario to mention /foo is not a
directory.
> NameNode does not check for inode type before traversing down a path
> --------------------------------------------------------------------
>
> Key: HDFS-5802
> URL: https://issues.apache.org/jira/browse/HDFS-5802
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 2.0.0-alpha
> Reporter: Harsh J
> Assignee: Xiao Chen
> Priority: Trivial
> Attachments: HDFS-5802.001.patch
>
>
> This came up during the discussion on a forum at
> http://community.cloudera.com/t5/Batch-Processing-and-Workflow/Permission-denied-access-EXECUTE-on-getting-the-status-of-a-file/m-p/5049#M162
> surrounding an fs.exists(…) check running on a path /foo/bar, where /foo is
> a file and not a directory.
> In such a case, NameNode yields a user-confusing message of {{Permission
> denied: user=foo, access=EXECUTE, inode="/foo":foo:foo:-rw-r--r--}} instead
> of clearly saying (and realising) "/foo is not a directory" or "/foo is a
> file" before it tries to traverse further down to locate the requested path.
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