Persistence not working in 2.4

Setup, Configuration and Use Runtime
1

Hi, I’ve recently upgrade my OPenhab to 2.4 and I’m having trouble with persistence.

I’ve reduce it to the very basics, I’ve re-installed mapdb and placed a very simple strategy file:

      Strategies 
    { 
    	default = everyChange
    } 
    Items 
    { 
    		* : strategy = everyChange, restoreOnStartup
    }

If I go to the rest API and do a get /persistence I get a 200 Ok and this output

[
 {
    "id": "mapdb",
    "label": "mapdb",
    "type": "Queryable"
  }
]

So seems like mapdb is installed an working. But if I do: /persistence/items?serviceId=mapdb
I get a 200 response, but an empty body like this

[]

There are no errors in openhab.log

Any clue of whats going on??

Thx!!!

2

My mapdb is working but I got the same output.
Did you try reading a specific item at get /persistence/items/{itemname}, like:

{
  "name": "hz_mode_party",
  "datapoints": "1",
  "data": [
    {
      "time": 1553924795067,
      "state": "0"
    }
  ]
}
3

Thx for your answer @sihui
I didn’t try before, but it’s still not working (at least, not as I expected) . I’ve just tried /persistence/items/ItemSoLocationBattery (an item that I see in event log that has changed in the last 5 minutes to the numeric value of 86) and I get this

{
  "name": "ItemSoLocationBattery",
  "datapoints": "0",
  "data": []
}

Seems like the mapdb recognizes the item (if I place an unexistent item, I get a 500 http state) but no data is colected.