[jira] [Updated] (HDFS-10779) Rename does not need to re-solve destination

["Daryn Sharp (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-10779?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Daryn Sharp updated HDFS-10779:
-------------------------------
    Attachment: HDFS-10779.patch

Stopped calling {{FSDirectory#isDir}} and completely removed the method.  Extensively use IIP instead of passing around string paths.  Modified rename txns and return result to remove need to re-resolve path again just to audit log.

> Rename does not need to re-solve destination
> --------------------------------------------
>
>                 Key: HDFS-10779
>                 URL: https://issues.apache.org/jira/browse/HDFS-10779
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: hdfs
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>         Attachments: HDFS-10779.patch
>
>
> Rename uses {{FSDirectory.isDir(String)}} to determine if the destination is a directory.  This dissect the path, creates an IIP, checks if the last inode is a directory.  The rename operations already have the IIP and can check it directly.



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