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https://issues.apache.org/jira/browse/YARN-4734?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15613495#comment-15613495
 ] 

Allen Wittenauer commented on YARN-4734:
----------------------------------------

So, this is odd. The new UI won't come up when I connect to the RM. I'm running 
it from the hadoop-dist/target dir via a simple 'yarn resourcemanager' but I 
don't think that really have an impact. My yarn-site.xml file is literally the 
documented bare minimum:

{code}
<configuration>

  <property>
    <name>yarn.webapp.ui2.enable</name>
    <value>true</value>
  </property>

</configuration>
{code}

Looking at /conf, yarn.webapp.ui2.enable is definitely set to true so it is 
picking that up.  

I'm also seeing

{code}
2016-10-27 15:32:49,379 INFO resourcemanager.ResourceManager: New web UI war 
file name:hadoop-yarn-ui-3.0.0-alpha2-SNAPSHOT.war, and 
path:/home/aw/Src/hadoop/hadoop-dist/target/hadoop-3.0.0-alpha2-SNAPSHOT/share/hadoop/yarn/hadoop-yarn-ui-3.0.0-alpha2-SNAPSHOT.war
{code}

So it's finding the war I suppose.  But when I connect to port 8088, I'm still 
getting the old UI.  Have I missed something here? Or is the documentation 
missing some requirements?


> Merge branch:YARN-3368 to trunk
> -------------------------------
>
>                 Key: YARN-4734
>                 URL: https://issues.apache.org/jira/browse/YARN-4734
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Wangda Tan
>            Assignee: Wangda Tan
>         Attachments: YARN-4734.1.patch, YARN-4734.10-NOT_READY.patch, 
> YARN-4734.11-NOT_READY.patch, YARN-4734.12-NOT_READY.patch, 
> YARN-4734.13.patch, YARN-4734.14.patch, YARN-4734.15.patch, 
> YARN-4734.16.patch, YARN-4734.17-rebased.patch, YARN-4734.17.patch, 
> YARN-4734.2.patch, YARN-4734.3.patch, YARN-4734.4.patch, YARN-4734.5.patch, 
> YARN-4734.6.patch, YARN-4734.7.patch, YARN-4734.8.patch, 
> YARN-4734.9-NOT_READY.patch
>
>
> YARN-2928 branch is planned to merge back to trunk shortly, it depends on 
> changes of YARN-3368. This JIRA is to track the merging task.



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