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https://issues.apache.org/jira/browse/HADOOP-12026?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14557494#comment-14557494
 ] 

Hadoop QA commented on HADOOP-12026:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch |  14m 45s | Pre-patch trunk compilation is 
healthy. |
| {color:green}+1{color} | @author |   0m  0s | The patch does not contain any 
@author tags. |
| {color:red}-1{color} | tests included |   0m  0s | The patch doesn't appear 
to include any new or modified tests.  Please justify why no new tests are 
needed for this patch. Also please list what manual steps were performed to 
verify this patch. |
| {color:green}+1{color} | javac |   7m 34s | There were no new javac warning 
messages. |
| {color:green}+1{color} | javadoc |   9m 41s | 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  7s | 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 36s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 34s | The patch built with 
eclipse:eclipse. |
| {color:green}+1{color} | findbugs |   1m 40s | The patch does not introduce 
any new Findbugs (version 3.0.0) warnings. |
| {color:green}+1{color} | common tests |  22m 53s | Tests passed in 
hadoop-common. |
| | |  60m 17s | |
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|| Subsystem || Report/Notes ||
| Patch URL | 
http://issues.apache.org/jira/secure/attachment/12735028/HADOOP-12026.001.patch 
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 446d515 |
| hadoop-common test log | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/6807/artifact/patchprocess/testrun_hadoop-common.txt
 |
| Test Results | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/6807/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf902.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/6807/console |


This message was automatically generated.

> Improve how error messages are displayed from jobclient - changes to Common
> ---------------------------------------------------------------------------
>
>                 Key: HADOOP-12026
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12026
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Ruth Wisniewski
>            Assignee: Ruth Wisniewski
>            Priority: Minor
>         Attachments: HADOOP-12026.001.patch
>
>
> This patch has the changes to Common needed for MAPREDUCE-347, which prints a 
> message rather than the whole stack trace when the output directory already 
> exists. The attached patch adds the OutputDirectoryAlreadyExistsException, 
> and the handling of this exception in RunJar.java. Modified tests are 
> included in the Mapreduce part of this patch, which depends on the changes to 
> Common. If you would like me to upload the entire patch with the Mapreduce 
> changes here, please let me know. (Otherwise I'll add the Mapreduce changes 
> to the MAPREDUCE-347 issue after this patch is accepted.)
> The Mapreduce changes are necessary for the patch to really work. They throw 
> the exception when the output directory is found to exist in 
> FileOutputFormat.java. They also will modify a test and ExampleDriver.java.



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