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https://issues.apache.org/jira/browse/HDFS-2712?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13173986#comment-13173986
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Suresh Srinivas commented on HDFS-2712:
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I would prefer to leave mtime to capture creation time. This might come handy
for snapshots. Is mtime not set to creation time currently?
> setTimes should support only for files and move the mtime&atime fields down
> to iNodeFile.
> -----------------------------------------------------------------------------------------
>
> Key: HDFS-2712
> URL: https://issues.apache.org/jira/browse/HDFS-2712
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: name-node
> Affects Versions: 0.23.0, 0.24.0
> Reporter: Uma Maheswara Rao G
> Assignee: Uma Maheswara Rao G
>
> After the dicussion in HDFS-2436, unsupported behaviour for setTimes was
> intentional (HADOOP-1869).
> But current INode structure hierarchy seems, it supports atime and mtime for
> directories also. But as per HADOOP-1869, we are supporting only for files.
> To avoid the confusions, we can move the mtime and atime fields to INodeFile
> as we planned to support setTimes only for files. And also restrict the
> support for setTimes on directories ( which is implemented with HDFS-2436 ).
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