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Posted to common-issues@hadoop.apache.org by "Da Zhou (JIRA)" <ji...@apache.org> on 2018/11/16 21:17:00 UTC

[jira] [Commented] (HADOOP-15940) ABFS: For HNS account, avoid unnecessary get call when doing Rename

    [ https://issues.apache.org/jira/browse/HADOOP-15940?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16690014#comment-16690014 ] 

Da Zhou commented on HADOOP-15940:
----------------------------------

Handle three corner cases in driver:
 1. rename a file to itself, should return true
 2. rename a dir to itself, should return true.
 3. move file/dir to same parent folder, return true.
For case 1,2, only a GetFileStatus request is needed to determine the return result.
For case 3, no request is needed.

*All tests passed:*
XNS account: sharedKey
Tests run: 35, Failures: 0, Errors: 0, Skipped: 0
Tests run: 307, Failures: 0, Errors: 0, Skipped: 22
Tests run: 165, Failures: 0, Errors: 0, Skipped: 15

*XNS account: OAUTH*
Tests run: 35, Failures: 0, Errors: 0, Skipped: 0
Tests run: 307, Failures: 0, Errors: 0, Skipped: 23
Tests run: 165, Failures: 0, Errors: 0, Skipped: 21

*non-XNS account: SharedKey:*
Tests run: 35, Failures: 0, Errors: 0, Skipped: 0
Tests run: 307, Failures: 0, Errors: 0, Skipped: 197
Tests run: 165, Failures: 0, Errors: 0, Skipped: 15

> ABFS: For HNS account, avoid unnecessary get call when doing Rename
> -------------------------------------------------------------------
>
>                 Key: HADOOP-15940
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15940
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/azure
>    Affects Versions: 3.2.0
>            Reporter: Da Zhou
>            Assignee: Da Zhou
>            Priority: Major
>         Attachments: HADOOP-15940-001.patch
>
>
> When rename, there is always a GET dst file status call, this is not necessary.



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