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https://issues.apache.org/jira/browse/YARN-4307?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14978771#comment-14978771
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Varun Vasudev commented on YARN-4307:
-------------------------------------

So the blacklisted nodes in the UI refers to nodes blacklisted by the AM. My 
understanding is you also want to display nodes blacklisted by the RM for the 
AM. Correct? If so, we should display them as two separate columns. We should 
rename the existing column to "App blacklisted nodes" or something that 
indicates that it shows the nodes blacklisted by the app and add a new column 
to display the information you want.

> Blacklisted nodes for AM container is not getting displayed in the Web UI
> -------------------------------------------------------------------------
>
>                 Key: YARN-4307
>                 URL: https://issues.apache.org/jira/browse/YARN-4307
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager, webapp
>            Reporter: Naganarasimha G R
>            Assignee: Naganarasimha G R
>         Attachments: webpage.png, yarn-capacity-scheduler-debug.log
>
>
> In pseudo cluster had 2 NM's  and had launched app with incorrect 
> configuration *./hadoop org.apache.hadoop.mapreduce.SleepJob 
> -Dmapreduce.job.node-label-expression=labelX  
> -Dyarn.app.mapreduce.am.env=JAVA_HOME=/no/jvm/here  -m 5 -mt 1200*.
> First attempt failed and 2nd attempt was launched, but the application was 
> hung. In the scheduler logs found that localhost was blacklisted but in the 
> UI (app& apps listing page) count was shown as zero and as well no hosts 
> listed in the app page. 



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