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https://issues.apache.org/jira/browse/HDFS-2436?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13173943#comment-13173943
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Tsz Wo (Nicholas), SZE commented on HDFS-2436:
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> ... Directories do not have access times.
In our code, directories *do* have access times (and mtime) since the fields
are defined in INode but not INodeFile. Also atime and mtime are returned in
getFileInfo(..) for directories. It is quite confusing whether atime and mtime
are supported for directories. Let file a JIRA to fix it.
> FSNamesystem.setTimes(..) expects the path is a file.
> -----------------------------------------------------
>
> Key: HDFS-2436
> URL: https://issues.apache.org/jira/browse/HDFS-2436
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 0.20.205.0
> Reporter: Arpit Gupta
> Assignee: Uma Maheswara Rao G
> Fix For: 0.23.0, 0.24.0
>
> Attachments: HDFS-2436.patch, HDFS-2436.patch, HDFS-2436.patch
>
>
> FSNamesystem.setTimes(..) does not work if the path is a directory.
> Arpit found this bug when testing webhdfs:
> {quote}
> settimes api is working when called on a file, but when called on a dir it
> returns a 404. I should be able to set time on both a file and a directory.
> {quote}
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