Persistence with cron not firing

Add-ons Persistence Services
1

Using openHAB 3.4.0 in docker running on Ubuntu.

Installed influxdb and grafana in their own docker containers. Started the journey of persisting my outside temperature. After a while I wanted to persist the temperature every 5 minute instead of everyChange.

Read about cron and updated the influxdb.persist file (in my case located /opt/openhab/conf/persistence/).

Strategies {
    everyFive : “0 */5 * * * ?”
    default : everyChange
}

Items {
  Temperature3LUMIAQARA_Temperature : strategy = everyFive
  ZWaveNode014FGWP101MeteredWallPlugSwitch_Switch : strategy = everyUpdate
  ZWaveNode008FGD212Dimmer2Koksskapen_Electricmeterwatts1 : strategy = everyUpdate
  SMHIWeatherForecast_MinWindSpeed : strategy = everyFive
}

Looking in “data explorer” within influxdb or in my grafana-dashboard. It does not persist the temperature every 5 minutes. Instead it continues to persist everyChange or everyUpdate of the temperature.

I have changed the cron-statement many times to try if that was the case, using FreeFormatter cron-expression online.

May this be because of some collision between UI settings and using .persist file ? I have chosen the default persistence service in UI. Did also try to add metadata at one time like the documentation of influxdb addon suggested. I have though deleted it via the developer tools which was a bit of a mess…

2

Strange quotes, try change to

""
3

Indeed, those are some strange quotes. Hawk-eyes!

At first glance though (using everyminute now) it did not fire anyway.

Strategies {
    everyFive : "0 */5 * * * ?"
    everyMinute : "0 * * * * ?"
    default : everyChange
}

Items {
  Temperature3LUMIAQARA_Temperature : strategy = everyMinute
  ZWaveNode014FGWP101MeteredWallPlugSwitch_Switch : strategy = everyUpdate
  ZWaveNode008FGD212Dimmer2Koksskapen_Electricmeterwatts1 : strategy = everyUpdate
  SMHIWeatherForecast_MinWindSpeed : strategy = everyMinute
}
4

log:tail is telling me:

Configuration model 'influxdb.persist' has errors, therefore ignoring it: [4,13]: mismatched input ':' expecting '='
5 
default = everyChange
6

Yeah I managed to find that. That’s how it is trying to learn 100 languages. I mean, everything else in the Strategies object want’s this “:”

Problem solved. Changed strange quotes and “:” to “=” on default strategy.