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From "Zhijie Shen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMBARI-6088) Ambari-web's YARN Metric "Queue Memory Used" is not meaningful
Date Tue, 24 Jun 2014 17:31:26 GMT

    [ https://issues.apache.org/jira/browse/AMBARI-6088?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14042412#comment-14042412
] 

Zhijie Shen commented on AMBARI-6088:
-------------------------------------

It seems that allocated + available = the queue's share of cluster resource. Allocated and
available are already available from queue metrics, while the queue's share of cluster resource
needs to be computed from the cluster resource and the queue absolute capacity. Either way
should be correct, but % = allocated * 100 / (allocated + available) seems to be more efficient.

> Ambari-web's YARN Metric "Queue Memory Used" is not meaningful
> --------------------------------------------------------------
>
>                 Key: AMBARI-6088
>                 URL: https://issues.apache.org/jira/browse/AMBARI-6088
>             Project: Ambari
>          Issue Type: Bug
>    Affects Versions: 1.5.1, 1.6.0, 1.6.1
>            Reporter: Hars Vardhan
>              Labels: patch
>             Fix For: 1.6.1
>
>         Attachments: AMBARI-6088.patch
>
>
> On this webUI : http://<ambari-host-name>:8080/#/main/services/YARN/summary 
> "Queue Memory Used" graph in Ambari' YARN web page seems abnormal. Sometimes, queue is
using more than 400% of the cluster memory!! How this is calculated? It doesn't match with
any metrics shown on Resource Manager UI page.



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