[ 
https://issues.apache.org/jira/browse/YARN-2369?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14558578#comment-14558578
 ] 

Hadoop QA commented on YARN-2369:
---------------------------------

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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 30s | 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 1 new or modified test files. |
| {color:green}+1{color} | javac |   7m 29s | There were no new javac warning 
messages. |
| {color:green}+1{color} | javadoc |   9m 37s | There were no new javadoc 
warning messages. |
| {color:green}+1{color} | release audit |   0m 23s | The applied patch does 
not increase the total number of release audit warnings. |
| {color:red}-1{color} | checkstyle |   2m 11s | The applied patch generated  2 
new checkstyle issues (total was 176, now 176). |
| {color:red}-1{color} | checkstyle |   2m 43s | The applied patch generated  8 
new checkstyle issues (total was 509, now 517). |
| {color:red}-1{color} | checkstyle |   3m 10s | The applied patch generated  2 
new checkstyle issues (total was 7, now 9). |
| {color:red}-1{color} | whitespace |   0m  0s | The patch has 7  line(s) that 
end in whitespace. Use git apply --whitespace=fix. |
| {color:green}+1{color} | install |   1m 33s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 32s | The patch built with 
eclipse:eclipse. |
| {color:green}+1{color} | findbugs |   5m 16s | The patch does not introduce 
any new Findbugs (version 3.0.0) warnings. |
| {color:green}+1{color} | common tests |  23m 19s | Tests passed in 
hadoop-common. |
| {color:green}+1{color} | mapreduce tests |   0m 46s | Tests passed in 
hadoop-mapreduce-client-common. |
| {color:green}+1{color} | mapreduce tests |   1m 35s | Tests passed in 
hadoop-mapreduce-client-core. |
| {color:green}+1{color} | yarn tests |   1m 58s | Tests passed in 
hadoop-yarn-common. |
| | |  70m 13s | |
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|| Subsystem || Report/Notes ||
| Patch URL | 
http://issues.apache.org/jira/secure/attachment/12735218/YARN-2369-5.patch |
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / ada233b |
| checkstyle |  
https://builds.apache.org/job/PreCommit-YARN-Build/8076/artifact/patchprocess/diffcheckstylehadoop-common.txt
 
https://builds.apache.org/job/PreCommit-YARN-Build/8076/artifact/patchprocess/diffcheckstylehadoop-mapreduce-client-core.txt
 
https://builds.apache.org/job/PreCommit-YARN-Build/8076/artifact/patchprocess/diffcheckstylehadoop-yarn-common.txt
 |
| whitespace | 
https://builds.apache.org/job/PreCommit-YARN-Build/8076/artifact/patchprocess/whitespace.txt
 |
| hadoop-common test log | 
https://builds.apache.org/job/PreCommit-YARN-Build/8076/artifact/patchprocess/testrun_hadoop-common.txt
 |
| hadoop-mapreduce-client-common test log | 
https://builds.apache.org/job/PreCommit-YARN-Build/8076/artifact/patchprocess/testrun_hadoop-mapreduce-client-common.txt
 |
| hadoop-mapreduce-client-core test log | 
https://builds.apache.org/job/PreCommit-YARN-Build/8076/artifact/patchprocess/testrun_hadoop-mapreduce-client-core.txt
 |
| hadoop-yarn-common test log | 
https://builds.apache.org/job/PreCommit-YARN-Build/8076/artifact/patchprocess/testrun_hadoop-yarn-common.txt
 |
| Test Results | 
https://builds.apache.org/job/PreCommit-YARN-Build/8076/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-YARN-Build/8076/console |


This message was automatically generated.

> Environment variable handling assumes values should be appended
> ---------------------------------------------------------------
>
>                 Key: YARN-2369
>                 URL: https://issues.apache.org/jira/browse/YARN-2369
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 2.2.0
>            Reporter: Jason Lowe
>            Assignee: Dustin Cote
>         Attachments: YARN-2369-1.patch, YARN-2369-2.patch, YARN-2369-3.patch, 
> YARN-2369-4.patch, YARN-2369-5.patch
>
>
> When processing environment variables for a container context the code 
> assumes that the value should be appended to any pre-existing value in the 
> environment.  This may be desired behavior for handling path-like environment 
> variables such as PATH, LD_LIBRARY_PATH, CLASSPATH, etc. but it is a 
> non-intuitive and harmful way to handle any variable that does not have 
> path-like semantics.



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