OH3 items missing in rrdj4 Persistence database

Add-ons Persistence Services
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1

I installed recently influxDB add-on on OH3 (3.1.0M4) for testing with some items only, using following influxdb.persist config file - for all other items I still used rrdj4.

//influxdb.persist
Items
    {
        Bewaesserung_Rasen_LetzteBewaesserung_Verbrauch  : strategy =  everyUpdate
        Bewaesserung_Rasen_Schalter : strategy =  everyChange
        item_HM_Sw4_Bewaesserung_1_STATE : strategy =  everyChange
      
    }

After updating OH3 to 3.1.0M5 I realized that some item data was not restored anymore, but item state was NULL only.
I found that from some items no records are available in rrd4j db, others are stored properly.
I do not have any rrd4j.persist config file defined, but use the default. rrd4j is the default persistence service.
I uninstalled the rrd4j persistence binding and installed it again, but no change.
I also stopped OH3, deleted tmp and cache folder and installed OH3 3.1.0M5 in a Docker again - still the same problem, for always the same items.

Example item not stored in rrd4j:

API Explorer item status:

{
  "link": "http://192.168.5.22:8192/rest/items/Bewaesserung_Vorne_Timer_Startzeit",
  "state": "2021-06-17T08:45:00.000+0200",
  "stateDescription": {
    "pattern": "%1$td.%1$tB, %1$tH:%1$tM",
    "readOnly": false,
    "options": []
  },
  "editable": true,
  "type": "DateTime",
  "name": "Bewaesserung_Vorne_Timer_Startzeit",
  "label": "Bewässerung Büsche Vorne Timer Startzeit",
  "category": "",
  "tags": [
    "Point"
  ],
  "groupNames": [
    "gBewaesserung_Vorne"
  ]
}

API Explorer Persistent status:

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

Any clue why some item states are not stored?

Thanks for your help :slight_smile:

Stefan

2

seems still to be valid: How to persist DateTime items in Openhab3

1 Like
3

Thanks a lot for the hint.
I do have the same issue for a text item - could this be related as well?


  "link": "http://192.168.5.22:8192/rest/items/Bewaesserung_Rasen_Status",
  "state": "Aus",
  "editable": true,
  "type": "String",
  "name": "Bewaesserung_Rasen_Status",
  "label": "Bewässerung Rasen Status",
  "category": "",
  "tags": [
    "Status"
  ],
  "groupNames": [
    "gBewaesserung_Rasen"
  ]
}


{
  "name": "Bewaesserung_Rasen_Status",
  "datapoints": "0",
  "data": []
}
4

I just see that Strings are also impacted.