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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13600) S3a rename() to copy files in a directory in parallel
Date Tue, 12 Sep 2017 17:53:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13600?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16163364#comment-16163364
] 

Hadoop QA commented on HADOOP-13600:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m  0s{color} | {color:blue}
Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red}  0m 11s{color} | {color:red}
HADOOP-13600 does not apply to branch-2. Rebase required? Wrong Branch? See https://wiki.apache.org/hadoop/HowToContribute
for help. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Issue | HADOOP-13600 |
| GITHUB PR | https://github.com/apache/hadoop/pull/167 |
| Console output | https://builds.apache.org/job/PreCommit-HADOOP-Build/13264/console |
| Powered by | Apache Yetus 0.6.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> S3a rename() to copy files in a directory in parallel
> -----------------------------------------------------
>
>                 Key: HADOOP-13600
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13600
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: 2.7.3
>            Reporter: Steve Loughran
>            Assignee: Sahil Takiar
>         Attachments: HADOOP-13600.001.patch
>
>
> Currently a directory rename does a one-by-one copy, making the request O(files * data).
If the copy operations were launched in parallel, the duration of the copy may be reducable
to the duration of the longest copy. For a directory with many files, this will be significant



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