[jira] [Commented] (AMBARI-11992) Hosts page responsiveness is severely impacted when metrics API responses are slow

["Andrii Tkach (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMBARI-11992?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14591714#comment-14591714 ] 

Andrii Tkach commented on AMBARI-11992:
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  6624 tests complete (13 seconds)
  86 tests pending


> Hosts page responsiveness is severely impacted when metrics API responses are slow
> ----------------------------------------------------------------------------------
>
>                 Key: AMBARI-11992
>                 URL: https://issues.apache.org/jira/browse/AMBARI-11992
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-web
>    Affects Versions: 2.1.0
>            Reporter: Andrii Tkach
>            Assignee: Andrii Tkach
>            Priority: Critical
>             Fix For: 2.1.0
>
>         Attachments: AMBARI-11992.patch
>
>
> We've seen that the Hosts page loads very slowly when metrics API calls are responding slowly. Under this condition, shutting down AMS makes the Hosts page responsive again.
> We should make Hosts page responsiveness independent of metrics API call latency by loading non-metric data and rendering the page first, and then lazy loading metrics info.



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