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From "Naganarasimha G R (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3362) Add node label usage in RM CapacityScheduler web UI
Date Thu, 19 Mar 2015 03:47:38 GMT

    [ https://issues.apache.org/jira/browse/YARN-3362?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14368463#comment-14368463
] 

Naganarasimha G R commented on YARN-3362:
-----------------------------------------

Thanks [~wangda],
Regarding the approach to display i had few concerns : 
* There will be some common queue metrics across the labels, wont it get repeated across for
each label if a queue is mapped to multiple labels ?
* IIUC most of the queue Metrics might not be specific to a label, like Capacity, Absolute
max capacity, Max apps, Max AM's per user etc... . Correct me if my understanding on this
is wrong.
* Apart from the label specific queue metrics like (label capacity, label abs capacity,used)
are there any new Label specific queue metrics you have in your mind ?
* would it be better to list like
{noformat}
+ root [=====================] 30% used
  + a  [=======================================] 75% used
    + a1 [=================]  30% used
	       ---------------------------------------------
	      |          Queue Metrics                     |
	      |--------------------------------------------|
	      |       metrics1       |            value1   |
	      |       metrics2       |            value2   |
           ---------------------------------------------
	      |          Active Users info  (yarn-3273)    |
	      |--------------------------------------------|
	      |       user1       |            info        |
	      |       user2       |            info        |
           ---------------------------------------------
	      |     Label Resource usage info              |
	      |--------------------------------------------|
	      | label_x  [=====================] 30% used  |
	      | label_y  [================] 20% used       |
	      ----------------------------------------------
    + a2 [=================]  30% used
    ...
{noformat}
* Also if required we can have seperate page (/in the labels page/append at the end of CS
page) like :
{noformat}
+ label_x  [=====================] 30% used [Actual Resource - Used resource ]
	+ root [=====================] 30% used [Actual Resource - Used resource ]
	  + a  [=======================================] 75% used [Actual Resource - Used resource
]
	    + a1 [=================]  30% used [Actual Resource - Used resource ]
+ label_y
    + root [...]
    + ...
+ label_z
    + root [...]
{noformat}

YARN-3273, has added more info to the CS page so we need to consider the size of page and
its usability.
Please provide your thoughts on the same 

> Add node label usage in RM CapacityScheduler web UI
> ---------------------------------------------------
>
>                 Key: YARN-3362
>                 URL: https://issues.apache.org/jira/browse/YARN-3362
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: capacityscheduler, resourcemanager, webapp
>            Reporter: Wangda Tan
>            Assignee: Naganarasimha G R
>
> We don't have node label usage in RM CapacityScheduler web UI now, without this, user
will be hard to understand what happened to nodes have labels assign to it.



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