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https://issues.apache.org/jira/browse/AMBARI-23309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16415607#comment-16415607
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Andrii Tkach commented on AMBARI-23309:
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committed to trunk
> YARN cluster memory graph is not loading in Ambari 2.6
> ------------------------------------------------------
>
> Key: AMBARI-23309
> URL: https://issues.apache.org/jira/browse/AMBARI-23309
> Project: Ambari
> Issue Type: Bug
> Components: ambari-web
> Affects Versions: 2.6.2
> Reporter: Andrii Tkach
> Assignee: Andrii Tkach
> Priority: Critical
> Labels: pull-request-available
> Fix For: 2.7.0
>
> Attachments: Screen Shot 2018-03-16 at 1.14.34 PM.png
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> Users are not able to see cluster memory graph under YARN. This was working
> before upgrade.
> We were able to reproduce this internally on Ambari 2.6. We checked across 5
> clusters and all of them exhibited same behaviour.
> Seems like problem with the compute : mem_total._sum - mem_free._sum fails
> but mem_total._sum + mem_free._sum succeeds.
> Also if we load mem_total._sum AND mem_free._sum individually, they come up
> fine.
> Seems like issue when we do a 'subtract'.
> Attaching UI Screenshot
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