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https://issues.apache.org/jira/browse/YARN-4281?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14965981#comment-14965981
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Hadoop QA commented on YARN-4281:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:red}-1{color} | pre-patch |  14m 52s | Findbugs (version ) appears to 
be broken on branch-2.7. |
| {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:red}-1{color} | patch |   0m  7s | The patch command could not apply 
the patch. |
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|| Subsystem || Report/Notes ||
| Patch URL | 
http://issues.apache.org/jira/secure/attachment/12767684/YARN-4281-branch-2.7-3.patch
 |
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | branch-2.7 / 3f3829e |
| Console output | 
https://builds.apache.org/job/PreCommit-YARN-Build/9503/console |


This message was automatically generated.

> 2.7 RM app page is broken
> -------------------------
>
>                 Key: YARN-4281
>                 URL: https://issues.apache.org/jira/browse/YARN-4281
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Chang Li
>            Assignee: Chang Li
>            Priority: Blocker
>         Attachments: YARN-4281-branch-2.7-3.patch, 
> YARN-4281-branch-2.7.2.patch, YARN-4281-branch-2.7.patch, 
> YARN-4281.2.7.modify.patch
>
>
> 2.7 RM app page is broken by the cherry pick of YARN-3248 on 23/Sep. It broke 
> the work around 2.7 patch of YARN-3544 to let it still use container report. 
> Currently, our cluster's 2.7 RM app page is completely broken due to 500 
> error, which is caused by when user UGI is null, completed app can not 
> retrieve its container report, and in that code path, it doesn't catch 
> ContainerNotFoundException, but throw the exception, therefore cause the 500 
> error.
>  Running app is also broken because of the way it construct containerID by 
> {code} "ContainerId.newContainerId(
>               appAttemptReport.getApplicationAttemptId(), 1)" 
> {code}, 
> which will not include epoch number in ID, so it will also get 
> ContainerNotFoundException and throw 500 error.
> Propose to use the branch-2 version of YARN-3544, instead of the work around 
> 2.7 patch because branch 2 patch on 2.7 is no longer blocked.



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