Andrii Tkach created AMBARI-12760:
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Summary: 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
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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