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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4254) ApplicationAttempt stuck for ever due to UnknowHostexception
Date Mon, 12 Oct 2015 09:04:06 GMT

    [ https://issues.apache.org/jira/browse/YARN-4254?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14952830#comment-14952830
] 

Hadoop QA commented on YARN-4254:
---------------------------------

\\
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch |  23m  9s | 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 |  10m 27s | There were no new javac warning messages. |
| {color:green}+1{color} | javadoc |  13m 31s | There were no new javadoc warning messages.
|
| {color:red}-1{color} | release audit |   0m 25s | The applied patch generated 1 release
audit warnings. |
| {color:green}+1{color} | checkstyle |   1m 33s | 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 |   2m  1s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 44s | The patch built with eclipse:eclipse.
|
| {color:green}+1{color} | findbugs |   1m 58s | The patch does not introduce any new Findbugs
(version 3.0.0) warnings. |
| {color:red}-1{color} | yarn tests |  60m 14s | Tests failed in hadoop-yarn-server-resourcemanager.
|
| | | 114m  7s | |
\\
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|| Reason || Tests ||
| Failed unit tests | hadoop.yarn.server.resourcemanager.scheduler.capacity.TestContainerAllocation
|
\\
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12766071/0001-YARN-4254.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 0ff1216 |
| Release Audit | https://builds.apache.org/job/PreCommit-YARN-Build/9405/artifact/patchprocess/patchReleaseAuditProblems.txt
|
| hadoop-yarn-server-resourcemanager test log | https://builds.apache.org/job/PreCommit-YARN-Build/9405/artifact/patchprocess/testrun_hadoop-yarn-server-resourcemanager.txt
|
| Test Results | https://builds.apache.org/job/PreCommit-YARN-Build/9405/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf907.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/9405/console |


This message was automatically generated.

> ApplicationAttempt stuck for ever due to UnknowHostexception
> ------------------------------------------------------------
>
>                 Key: YARN-4254
>                 URL: https://issues.apache.org/jira/browse/YARN-4254
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Bibin A Chundatt
>            Assignee: Bibin A Chundatt
>         Attachments: 0001-YARN-4254.patch
>
>
> Scenario
> =======
> 1. RM HA and 5 NMs available in cluster and are working fine 
> 2. Add one more NM to the same cluster but RM /etc/hosts not updated.
> 3. Submit application to the same cluster
> If Am get allocated to the newly added NM the *application attempt will get stuck for
ever*.User will not get to know why the same happened.
> Impact
> 1.RM logs gets overloaded with exception
> 2.Application gets stuck for ever.
> Handling suggestion YARN-261 allows for Fail application attempt .
> If we fail the same next attempt could get assigned to another NM.



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