The Tango DB server is essential for the Tango operation.
sudo /bin/systemctl restart tango-db sudo /bin/systemctl stop tango-db sudo /bin/systemctl status tango-db When the service is active: $ sudo /bin/systemctl status tango-db * tango-db.service - Tango database service Loaded: loaded (/etc/systemd/system/tango-db.service; enabled; vendor preset: enabled) Active: active (running) since Tue 2020-05-12 15:51:06 CEST; 3min 49s ago Main PID: 2172 (DataBaseds) Tasks: 30 (limit: 4915) CGroup: /system.slice/tango-db.service `-2172 /usr/lib/tango/DataBaseds 2 -ORBendPoint giop:tcp::10000 ... When the service is NOT active: $ sudo /bin/systemctl status tango-db * tango-db.service - Tango database service Loaded: loaded (/etc/systemd/system/tango-db.service; enabled; vendor preset: enabled) Active: inactive (dead) since Tue 2020-05-12 15:55:57 CEST; 3s ago Process: 2172 ExecStart=/usr/lib/tango/DataBaseds 2 -ORBendPoint giop:tcp::10000 (code=exited, status=0/SUCCESS) Main PID: 2172 (code=exited, status=0/SUCCESS) ... sudo /bin/systemctl start tango-db if status tango-db shows this service to be inactive if 'ps -aux | grep DataBase' does not show '/usr/lib/tango/DataBaseds 2 -ORBendPoint giop:tcp::10000'