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https://issues.apache.org/jira/browse/HDFS-6562?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14039474#comment-14039474
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Jing Zhao commented on HDFS-6562:
---------------------------------

Comments for the remaining changes:
# I guess we can even put srcParent as a final field in RenameTransaction since
  we will not replace the parent INode anymore.
# Can we have a validateOverwrite method to cover all the checks when rename
  destination exists (the checks in the "if (dstInode != null)" section)?

> Refactor rename() in FSDirectory
> --------------------------------
>
>                 Key: HDFS-6562
>                 URL: https://issues.apache.org/jira/browse/HDFS-6562
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>            Reporter: Haohui Mai
>            Assignee: Haohui Mai
>         Attachments: HDFS-6562.000.patch, HDFS-6562.001.patch, 
> HDFS-6562.002.patch, HDFS-6562.003.patch
>
>
> Currently there are two variants of {{rename()}} sitting in {{FSDirectory}}. 
> Both implementation shares quite a bit of common code.
> This jira proposes to clean up these two variants and extract the common code.



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