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https://issues.apache.org/jira/browse/YARN-3967?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14639552#comment-14639552
 ] 

Hadoop QA commented on YARN-3967:
---------------------------------

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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch |  18m 56s | 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 |   9m 20s | There were no new javac warning 
messages. |
| {color:green}+1{color} | javadoc |  12m  3s | There were no new javadoc 
warning messages. |
| {color:green}+1{color} | release audit |   0m 27s | The applied patch does 
not increase the total number of release audit warnings. |
| {color:red}-1{color} | checkstyle |   0m 26s | The applied patch generated  5 
new checkstyle issues (total was 3, now 8). |
| {color:green}+1{color} | whitespace |   0m  0s | The patch has no lines that 
end in whitespace. |
| {color:green}+1{color} | install |   1m 45s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 44s | The patch built with 
eclipse:eclipse. |
| {color:green}+1{color} | findbugs |   0m 56s | The patch does not introduce 
any new Findbugs (version 3.0.0) warnings. |
| {color:green}+1{color} | yarn tests |   0m 30s | Tests passed in 
hadoop-yarn-server-web-proxy. |
| | |  45m 11s | |
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|| Subsystem || Report/Notes ||
| Patch URL | 
http://issues.apache.org/jira/secure/attachment/12746856/YARN-3967.2.patch |
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 813cf89 |
| checkstyle |  
https://builds.apache.org/job/PreCommit-YARN-Build/8638/artifact/patchprocess/diffcheckstylehadoop-yarn-server-web-proxy.txt
 |
| hadoop-yarn-server-web-proxy test log | 
https://builds.apache.org/job/PreCommit-YARN-Build/8638/artifact/patchprocess/testrun_hadoop-yarn-server-web-proxy.txt
 |
| Test Results | 
https://builds.apache.org/job/PreCommit-YARN-Build/8638/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf904.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/8638/console |


This message was automatically generated.

> Fetch the application report from the AHS if the RM does not know about it
> --------------------------------------------------------------------------
>
>                 Key: YARN-3967
>                 URL: https://issues.apache.org/jira/browse/YARN-3967
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 2.7.1
>            Reporter: Mit Desai
>            Assignee: Mit Desai
>         Attachments: YARN-3967.1.patch, YARN-3967.2.patch
>
>
> If the application history service has been enabled and RM has forgotten 
> anout an application, try and fetch the app report form the AHS.
> On larger clusters, the RM can forget about the applications in about 30 
> minutes. The proxy url generated during the job submission will try to fetch 
> the app report from the RM and will fail to get anything from there. If the 
> app is not found in the RM, we will need to get the application report from 
> the Application History Server  (if it is enabled) to see if we can get any 
> information on that application before throwing an exception.



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