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https://issues.apache.org/jira/browse/HDFS-6262?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15404347#comment-15404347
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Hadoop QA commented on HDFS-6262:
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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  5s{color} 
| {color:red} HDFS-6262 does not apply to trunk. Rebase required? Wrong Branch? 
See https://wiki.apache.org/hadoop/HowToContribute for help. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12641192/HDFS-6262.2.patch |
| JIRA Issue | HDFS-6262 |
| Console output | 
https://builds.apache.org/job/PreCommit-HDFS-Build/16291/console |
| Powered by | Apache Yetus 0.4.0-SNAPSHOT   http://yetus.apache.org |


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> HDFS doesn't raise FileNotFoundException if the source of a rename() is 
> missing
> -------------------------------------------------------------------------------
>
>                 Key: HDFS-6262
>                 URL: https://issues.apache.org/jira/browse/HDFS-6262
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 2.4.0
>            Reporter: Steve Loughran
>            Assignee: Akira Ajisaka
>              Labels: BB2015-05-TBR
>         Attachments: HDFS-6262.2.patch, HDFS-6262.patch
>
>
> HDFS's {{rename(src, dest)}} returns false if src does not exist -all the 
> other filesystems raise {{FileNotFoundException}}
> This behaviour is defined in {{FSDirectory.unprotectedRenameTo()}} -the 
> attempt is logged, but the operation then just returns false.
> I propose changing the behaviour of {{DistributedFileSystem}} to be the same 
> as that of the others -and of {{FileContext}}, which does reject renames with 
> nonexistent sources



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