Scenario
In vSphere Web Client 6.5, under Home, Administration, Deployment/System Configuration, Nodes, the vCenter Server node shows an error message “The appliance management service is not running”. An error message “HTTP response with status code 503, 503 Service Unavailable (Failed to connect to endpoint: _serverNamespace = /vmonapi action =Allow _port = 8900" also appears in the web client.
Troubleshooting
- Login the VMware Appliance Management UI (https://psc:5480 or https://vc:5480). All the health status are good.
- SSH to VC appliance. Check service status (KB2109887)
- # service-control –list
- # service-control –status
- applmgmt (VMware Appliance Management Service) is running
- vmonapi (VMware Service Lifecycle Manager API) is not running
Solution
- Restart vmonapi service or restart all services
- # service-control --start vmonapi
- # service-control –start –all
- PS: if restarting all the services, it may take some time before all services turn back to Good (green) in the node’s Summary page. e.g. VMware Performance Charts service takes more than 30 minutes to change from Warning, Unknown, and then Good.
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