Naganarasimha G R created YARN-4307:

             Summary: Blacklisted nodes for AM container is not getting 
displayed in the Web UI
                 Key: YARN-4307
             Project: Hadoop YARN
          Issue Type: Bug
          Components: resourcemanager, webapp
            Reporter: Naganarasimha G R
            Assignee: Naganarasimha G R

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  -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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