The Agents and Hosts dashboard say "No data is available to filter" (4283900)

The Agents and Hosts dashboards no longer work. Both dashboards say "No data is available to filter" and no data is being displayed. The filter field disappeared completley.

The internal services that control these dashboard components some how had been removed from the FMS or got corrupted.

RESOLUTION 1:

Restart the Foglight Management Server and see if that solves the issue. If not please try resolution part 2.

RESOLUTION 2:

To resolve, disable and enable the following Core-* cartridges.

1. Navigate to "Administration | Cartridges | Cartridge Inventory"
2. Select these cartridges from Cartridge inventory:
   Core-Hosts
   Core-Script
   Core-Services
   Core-Dashboards
   Core-ModelExtension
   Core-ModelExtension-UI
   
   Note: Depends on your Foglight Version not all the above cartridge are available, for example version 5.7.x does not have the Core-Script cartridge anymore.
   
3. Disable these cartridges
4. Enable these cartridges
5. Check if the issue is fixed. If not continue with step 7.
6. Run the attached script in the "Administration | Tooling | Script Editor/Console"
7. Navigate to the Agents and Hosts dashboard and check if the issue is solved