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https://issues.apache.org/jira/browse/AMBARI-3677?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tom Beerbower updated AMBARI-3677:
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Attachment: AMBARI-3677-2.patch
> Service state should accurately reflect state of host-components
> ----------------------------------------------------------------
>
> Key: AMBARI-3677
> URL: https://issues.apache.org/jira/browse/AMBARI-3677
> Project: Ambari
> Issue Type: Task
> Reporter: Tom Beerbower
> Assignee: Tom Beerbower
> Attachments: AMBARI-3677-2.patch, AMBARI-3677.patch
>
>
> Currently the UI loads *all* the host-components for a service just to
> calculate the status of a service. So if YARN, HDFS are installed on a 1000
> node cluster, we get 2000 host-components in response just to calculate the
> color of 2 services (stopped=red, started=green, starting=blinking-green,
> stopping=blinking-red, etc., unknown=yellow)
> This is not scalable on the browser. We want the API to roll-up the
> host-component statuses, and correctly update the {{ServiceInfo/state}} of
> the service. This will help UI in not loading all host_components.
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