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https://issues.apache.org/jira/browse/AMBARI-12760?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrii Tkach updated AMBARI-12760:
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Attachment: AMBARI-12760.patch
> FE: Add experimental flag to show "page loaded in X seconds" on important
> pages
> -------------------------------------------------------------------------------
>
> Key: AMBARI-12760
> URL: https://issues.apache.org/jira/browse/AMBARI-12760
> Project: Ambari
> Issue Type: Task
> Components: ambari-web
> Affects Versions: 2.1.2
> Reporter: Andrii Tkach
> Assignee: Andrii Tkach
> Fix For: 2.1.2
>
> Attachments: AMBARI-12760.patch
>
>
> To make it easy to determine how long it takes to render a page, we need a
> message at the bottom of important pages which says "Page loaded in X seconds
> and Y milliseconds". This will be useful for anyone to accurately measure UI
> perf issues.
> "Loading" unfortunately means different things on different pages.
> * Dashboard
> ** Metrics: All tiles show and page is available for interaction. Data in
> tiles need not be loaded.
> ** Heatmaps: Heatmap data should be shown for appropriate hosts.
> ** Config History: Table is available for interaction.
> * Service
> ** Summary: Page is available for interaction. Data in graphs need not be
> loaded.
> ** Heatmaps: Heatmap data should be shown for appropriate hosts.
> ** Configs: Config fields should be available for interaction. Should update
> when config-groups are selected.
> * Hosts
> ** Time taken to populate hosts table and make it available. This should keep
> updating when various filters and sorts are used.
> * Alerts
> ** Time taken to populate table and make it available. This should keep
> updating when various filters and sorts are used.
> The mechanism should be a mixin that any page can use with ease if needed.
> Ideally, we want this hooked into Ember rendering pipeline so that the
> numbers include the time taken to render the view. Hooking to mapper end time
> is *not* accurate.
> We can call the experimental flag "showPageLoadTime".
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