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https://issues.apache.org/jira/browse/HADOOP-12384?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14734910#comment-14734910
 ] 

Hadoop QA commented on HADOOP-12384:
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| (/) *{color:green}+1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch |  15m  1s | Pre-patch trunk compilation is 
healthy. |
| {color:green}+1{color} | @author |   0m  0s | The patch does not contain any 
@author tags. |
| {color:green}+1{color} | tests included |   0m  0s | The patch appears to 
include 2 new or modified test files. |
| {color:green}+1{color} | javac |   7m 58s | There were no new javac warning 
messages. |
| {color:green}+1{color} | javadoc |  10m  1s | There were no new javadoc 
warning messages. |
| {color:green}+1{color} | release audit |   0m 22s | The applied patch does 
not increase the total number of release audit warnings. |
| {color:green}+1{color} | checkstyle |   1m  5s | There were no new checkstyle 
issues. |
| {color:green}+1{color} | whitespace |   0m  0s | The patch has no lines that 
end in whitespace. |
| {color:green}+1{color} | install |   1m 27s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 33s | The patch built with 
eclipse:eclipse. |
| {color:green}+1{color} | findbugs |   1m 43s | The patch does not introduce 
any new Findbugs (version 3.0.0) warnings. |
| {color:green}+1{color} | common tests |  22m 51s | Tests passed in 
hadoop-common. |
| | |  61m  5s | |
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|| Subsystem || Report/Notes ||
| Patch URL | 
http://issues.apache.org/jira/secure/attachment/12754485/HDFS-8698.3.patch |
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 435f935 |
| hadoop-common test log | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/7614/artifact/patchprocess/testrun_hadoop-common.txt
 |
| Test Results | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/7614/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf906.gq1.ygridcore.net 3.13.0-36-lowlatency #63-Ubuntu SMP 
PREEMPT Wed Sep 3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux |
| Console output | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/7614/console |


This message was automatically generated.

> Add "-direct" flag option for fs copy so that user can choose not to create 
> "._COPYING_" file
> ---------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-12384
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12384
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: fs
>    Affects Versions: 2.7.0
>            Reporter: Chen He
>            Assignee: J.Andreina
>             Fix For: 2.8.0
>
>         Attachments: HDFS-8698.1.patch, HDFS-8698.2.patch, HDFS-8698.3.patch
>
>
> Because CLI is using CommandWithDestination.java which add "._COPYING_" to 
> the tail of file name when it does the copy. For blobstore like S3 and Swift, 
> to create "._COPYING_" file and rename it is expensive. "-direct" flag can 
> allow user to avoiding the "._COPYING_" file.



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