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

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.1.0
• Fix Version/s: 2.1.0
• Component/s: ambari-web
• Assignee: Andrii Tkach
• Reporter: Andrii Tkach
• Created: 18/Jun/15 12:31
• Updated: 20/Jun/15 03:36
• Resolved: 19/Jun/15 08:34

Description

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.