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https://issues.apache.org/jira/browse/AMBARI-9418?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14298850#comment-14298850
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Aleksandr Kovalenko commented on AMBARI-9418:
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+1 for the patch
> UI changes to resolve discrepancies between what the stack vs Ambari reports
> as "live" for slaves such as DataNodes and NodeManagers
> ------------------------------------------------------------------------------------------------------------------------------------
>
> Key: AMBARI-9418
> URL: https://issues.apache.org/jira/browse/AMBARI-9418
> Project: Ambari
> Issue Type: Task
> Components: ambari-web
> Affects Versions: 2.0.0
> Reporter: Andrii Babiichuk
> Assignee: Andrii Babiichuk
> Priority: Critical
> Fix For: 2.0.0
>
> Attachments: AMBARI-9418.patch
>
>
> Sometimes there are discrepancies between what the stack reports as being
> live vs Ambari reports as live.
> This comes from the fact that liveness is tracked by the service master
> differently than simply process up/down, which Ambari reports.
> Strictly speaking, Ambari reports both, but how UI is presenting it now
> creates confusion.
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