[jira] [Commented] (YARN-4183) Enabling generic application history forces every job to get a timeline service delegation token

["Hadoop QA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-4183?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14876101#comment-14876101 ] 

Hadoop QA commented on YARN-4183:
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| (/) *{color:green}+1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch |  18m 58s | 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 47s | There were no new javac warning messages. |
| {color:green}+1{color} | javadoc |  11m 23s | There were no new javadoc warning messages. |
| {color:green}+1{color} | release audit |   0m 24s | The applied patch does not increase the total number of release audit warnings. |
| {color:green}+1{color} | checkstyle |   0m 55s | 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 38s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 37s | The patch built with eclipse:eclipse. |
| {color:green}+1{color} | findbugs |   1m 37s | The patch does not introduce any new Findbugs (version 3.0.0) warnings. |
| {color:green}+1{color} | yarn tests |  63m 12s | Tests passed in hadoop-yarn-server-resourcemanager. |
| | | 108m 36s | |
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12761137/YARN-4183.1.patch |
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 3f42753 |
| hadoop-yarn-server-resourcemanager test log | https://builds.apache.org/job/PreCommit-YARN-Build/9211/artifact/patchprocess/testrun_hadoop-yarn-server-resourcemanager.txt |
| Test Results | https://builds.apache.org/job/PreCommit-YARN-Build/9211/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf905.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/9211/console |


This message was automatically generated.

> Enabling generic application history forces every job to get a timeline service delegation token
> ------------------------------------------------------------------------------------------------
>
>                 Key: YARN-4183
>                 URL: https://issues.apache.org/jira/browse/YARN-4183
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 2.7.1
>            Reporter: Mit Desai
>            Assignee: Mit Desai
>         Attachments: YARN-4183.1.patch
>
>
> When enabling just the Generic History Server and not the timeline server, the system metrics publisher will not publish the events to the timeline store as it checks if the timeline server and system metrics publisher are enabled before creating a timeline client.
> To make it work, if the timeline service flag is turned on, it will force every yarn application to get a delegation token.
> Instead of checking if timeline service is enabled, we should be checking if application history server is enabled.



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