Wangda Tan commented on YARN-3717:

bq. Well for a naive user will atleast know to what to look at. Or how about 
your idea of (For example, showing queue's label when the app's label doesn't 
set, etc.)
I think we should do this -- "showing queue's label when the app's label 
doesn't set..", but I think this may need some effort, I haven't thought about 
it, it may need some changes in the scheduler side so RMApp can get label of 
queue. We can improve this in later patches.

bq. Ok, Will raise and start working on them. please inform if the priorty is 
more so that can finish them faster.
This is more important to me, now we cannot do this through REST API, which 
will block effort of YARN-3368 to support showing labels metrics as well.


> Expose app/am/queue's node-label-expression to RM web UI / CLI / REST-API
> -------------------------------------------------------------------------
>                 Key: YARN-3717
>                 URL: https://issues.apache.org/jira/browse/YARN-3717
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Naganarasimha G R
>            Assignee: Naganarasimha G R
>         Attachments: 3717_cluster_test_snapshots.zip, RMLogsForHungJob.log, 
> YARN-3717.20150822-1.patch, YARN-3717.20150824-1.patch, 
> YARN-3717.20150825-1.patch, YARN-3717.20150826-1.patch
> 1> Add the default-node-Label expression for each queue in scheduler page.
> 2> In Application/Appattempt page  show the app configured node label 
> expression for AM and Job

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