503 Service Unavailable (Failed to connect to endpoint: [class Vmacore::Http::LocalServiceSpec:0x000001d47454d440] _serverNamespace = /ui action = Allow _port = 5090)

Command> service-control --stop vsphere-client

INFO:root:Service: vsphere-client, Action: stop

Service: vsphere-client, Action: stop

2017-11-02T04:41:06.398Z Running command: ['/sbin/service', u'vsphere-client', 'status']

2017-11-02T04:41:06.585Z Done running command

Command> service-control --start vsphere-client

INFO:root:Service: vsphere-client, Action: start

Service: vsphere-client, Action: start

2017-11-02T04:41:19.455Z Running command: ['/sbin/chkconfig', u'vsphere-client']

2017-11-02T04:41:19.767Z Done running command

2017-11-02T04:41:19.767Z Running command: ['/sbin/service', u'vsphere-client', 'status']

2017-11-02T04:41:19.915Z Done running command

2017-11-02T04:41:19.915Z Running command: ['/sbin/chkconfig', '--force', u'vsphere-client', 'on']

2017-11-02T04:41:19.976Z Done running command

2017-11-02T04:41:19.977Z Running command: ['/sbin/service', u'vsphere-client', 'start']

2017-11-02T04:41:25.099Z Done running command

2017-11-02T04:41:25.100Z Successfully started service vsphere-client