Mohammad Shahid Khan commented on YARN-3846:

https://issues.apache.org/jira/browse/YARN-2238 is for different fix.
The label "Queue  :" was added before the queue name in 
https://issues.apache.org/jira/browse/YARN-3362. After the search was not 
working and the same has been handled in the  
The fix is OK for the for the first child of the queue 
but will not work for the second child
for example Queue: b.x
  Queue: root
    Queue: a          _*For queue a it will work fine*_
    Queue: b    
       Queue: b.x   _*But for queue x and y this will not work*_
       Queue: b.y

*My question: *
  What is the significance of adding Label *"Queue:"*  before the queue name?

> RM Web UI queue fileter not working
> -----------------------------------
>                 Key: YARN-3846
>                 URL: https://issues.apache.org/jira/browse/YARN-3846
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: yarn
>    Affects Versions: 2.7.0
>            Reporter: Mohammad Shahid Khan
>            Assignee: Mohammad Shahid Khan
> Click on root queue will show the complete applications
> But click on the leaf queue is not filtering the application related to the 
> the clicked queue.
> The regular expression seems to be wrong 
> {code}
> q = '^' + q.substr(q.lastIndexOf(':') + 2) + '$';",
> {code}
> For example
> 1. Suppose  queue name is  b
> them the above expression will try to substr at index 1 
> q.lastIndexOf(':')  = -1
> -1+2= 1
> which is wrong. its should look at the 0 index.
> 2. if queue name is ab.x
>     then it will parse it to .x 
>     but it should be x

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