To have a look to the mongo DB content you may try this:
- login to a shell on openhab computer / raspi
- connect to mongo db
mongo -u YourUserHere -p YourPasswordHere openhab
- db.items.find()
- result looks like:
{ "_id" : ObjectId("5c7abcf4c5d4f7bb036c2dba"), "last_update" : ISODate("2019-03-02T17:27:16.778Z"), "prev_status" : "", "openhab" : ObjectId("5c4f58ed6cbc6d0a04d42b9b"), "name" : "RXV685Main_Zone_Zone_channels_Power", "last_change" : ISODate("2019-03-02T17:27:16.755Z"), "status" : "ON", "states" : [ ], "groups" : [ ] }
{ "_id" : ObjectId("5c7abcf4c5d4f7bb036c2dbc"), "last_update" : ISODate("2019-03-02T17:27:16.864Z"), "prev_status" : "", "openhab" : ObjectId("5c4f58ed6cbc6d0a04d42b9b"), "name" : "Verstaerker", "last_change" : ISODate("2019-03-02T17:27:16.854Z"), "status" : "ON", "states" : [ ], "groups" : [ ] }
{ "_id" : ObjectId("5c7abcf4c5d4f7bb036c2dbe"), "last_update" : ISODate("2020-02-03T18:06:47.754Z"), "prev_status" : "0", "openhab" : ObjectId("5c4f58ed6cbc6d0a04d42b9b"), "name" : "RXV685Main_Zone_Zone_channels_Volume", "last_change" : ISODate("2019-03-02T17:27:16.974Z"), "status" : "30", "states" : [ ], "groups" : [ ] }
{ "_id" : ObjectId("5c8e2c2543b0954b033fc143"), "last_update" : ISODate("2020-01-28T20:25:53.752Z"), "prev_status" : "HDMI2", "openhab" : ObjectId("5c4f58ed6cbc6d0a04d42b9b"), "name" : "Yamaha_Input", "last_change" : ISODate("2019-03-17T11:14:45.725Z"), "status" : "HDMI1", "states" : [ ], "groups" : [ ] }
{ "_id" : ObjectId("5ce872b98685d27a035ff53b"), "last_update" : ISODate("2019-05-24T22:39:53.502Z"), "prev_status" : "", "openhab" : ObjectId("5c4f58ed6cbc6d0a04d42b9b"), "name" : "Amplifier", "last_change" : ISODate("2019-05-24T22:39:53.488Z"), "status" : "OFF", "states" : [ ], "groups" : [ ] }
{ "_id" : ObjectId("5dfb4fa824a4a1ba03fcd881"), "last_update" : ISODate("2020-02-03T18:06:46.300Z"), "prev_status" : "OFF", "openhab" : ObjectId("5c4f58ed6cbc6d0a04d42b9b"), "name" : "Rule_TV_einschalten", "last_change" : ISODate("2019-12-19T10:23:36.791Z"), "status" : "ON", "states" : [ ], "groups" : [ ] }