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https://issues.apache.org/jira/browse/HDFS-5962?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13905547#comment-13905547
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Kihwal Lee commented on HDFS-5962:
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It should be easy to add a test case for this. Start a mini cluster, create a
symlink, do saveNamespace and restart the namenode. Compare the time stamp
before and after. Directory (mtime) and file inode (mtime and atime) can be
covered in the same test.
> Mtime and atime are not persisted for symbolic links
> ----------------------------------------------------
>
> Key: HDFS-5962
> URL: https://issues.apache.org/jira/browse/HDFS-5962
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Kihwal Lee
> Assignee: Akira AJISAKA
> Priority: Critical
> Attachments: HDFS-5692.patch, HDFS-5962.2.patch
>
>
> In {{FSImageSerialization}}, the mtime and atime of symbolic links are
> hardcoded to be 0 when saving to fsimage, even though they are recorded in
> memory and shown in the listing until restarting namenode.
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