[CLOUDSTACK-9699] Metrics: Add a global setting to enable/disable Metrics view

• Type: Improvement
• Status: In Progress
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 4.7.0, 4.8.0, 4.9.0
• Fix Version/s: 4.10.1.0
• Component/s: UI
• Security Level: Public (Anyone can view this level - this is the default.)
• Assignee: Rashmi Dixit
• Reporter: Rashmi Dixit
• Created: 22/Dec/16 10:50
• Updated: 06/Jul/17 10:33

Description

The Metrics view for each type of entity basically fires APIs and calculates required values on the client end. For e.g. to display memory usage etc at the zone level, it will fetch all zones. For each zone it will fetch pods->cluster->host->VMs

For a very large Cloudstack installation this will have a major impact on the performance.
Ideally, there should be an API which calculates all this in the backend and the UI should simply show the values. However, for the time, introduce a global setting called enable.metrics which will be set to false. This will cause the metrics button not to be shown on any of the pages.

If the Admin changes this to true, then the button will be visible and Metrics functionality will work as usual.

Issue Links

• links to: GitHub Pull Request #1884